Alerta

METHOD FOR PRODUCING CYANOBACTERIA OF THE GENUS APHANIZOMENON

Resumen de: WO2026058105A1

The present invention relates to a method for producing cyanobacteria of the genus Aphanizomenon, comprising the following steps: (a) inoculating cyanobacteria of the genus Aphanizomenon and microalgae of the genus Chlorella into an aqueous culture medium in amounts such that the initial weight ratio of dry matter (microalgae of the genus Chlorella)/(microalgae of the genus Chlorella + cyanobacteria of the genus Aphanizomenon) is between 5% and 70%; (b) keeping the co-culture under illumination, whereby the cyanobacteria of the genus Aphanizomenon and the microalgae of the genus Chlorella develop in the aqueous culture medium; then (c) physically separating the cyanobacteria of the genus Aphanizomenon from the microalgae of the genus Chlorella and recovering the cyanobacteria of the genus Aphanizomenon.

PROCESS FOR PRODUCING BIOFERTILIZERS/BIOSTIMULANTS FROM MICROALGAE OF THE SPECIES SCENEDESMUS SP. WITH INTENSIVE CO2 CAPTURE, BIOFERTILIZERS/BIOSTIMULANTS OBTAINED BY SAID PROCESS AND THEIR USES IN AGRICULTURE

Resumen de: US20260070853A1

The present invention relates to a process for producing biofertilizers/biostimulants from microalgae with intensive CO2 capture, which comprises the following steps: a) preparing an inoculum;b) cultivating for the production of microalgae biomass in a window photobioreactor;c) collecting the biomass by flocculation;d) drying the biomass, and grinding and extracting a polar fraction by solvent in a two-phase system; ande) analyzing the polar fraction by liquid chromatography.The invention also relates to the extracts of wet biomass of the microalgae Scenedesmus sp., obtaining the polar fraction. This polar fraction contains amino acids, sugars, betaine derivatives, vitamin B3 (nicotinamide or nicotinic acid) and pantothenic acid (vitamin B5), the monoterpene loliolide and the tryptophan derivative indole-lactic acid (analogous to indole-acetic acid, a phytohormone of the auxin class).The polar fraction can also be used as an input in the cultivation of soybeans, corn, sugar cane, cotton and coffee, among other cultivated species.

Microalgae with enhanced resistance to radiation method for preparing the same and decontamination method using the same

Resumen de: KR20260030985A

본 발명은 방사선 저항성이 향상된 미세조류, 이의 제조방법 및 이를 이용한 제염 방법에 관한 것으로, 보다 상세하게는 클라미도모나스 레인하티(Chlamydomonas reinhardtii) 유래 CrUAM(UDP-Arabinopyranose mutase)를 코딩하는 유전자를 포함하는 형질전환 미세조류인 방사선 저항성이 향상된 미세조류, 상기 미세조류를 방사성 물질로 오염된 폐수 또는 토양에 처리하는 단계를 포함하는 제염 방법, 및 클라미도모나스 레인하티(Chlamydomonas reinhardtii) 유래 CrUAM(UDP-Arabinopyranose mutase)를 코딩하는 유전자를 미세조류에 도입하는 단계를 포함하는, 방사선 저항성이 향상된 형질전환 미세조류 제조방법에 관한 것이다.

BIOREMEDIATION OF ORGANIC COMPOUNDS IN WATER VIA MICROALGAE

Resumen de: US20260062330A1

A method for organic compound removal from a solution using microalgae includes extracting one or more hydrocarbons from an underground geologic formation to form a hydrocarbon composition and a produced water including at least a portion of the one or more hydrocarbons and one or more salts. The method further includes mixing the produced water with a wastewater to form a solution, and then contacting a microalgae feedstock, Chlorella sorokiniana, with the solution in a bioreactor. The total lipid content of the microalgae feedstock is 13 to 17%. The method includes removing the one or more hydrocarbons, nitrogen, and phosphorous from the solution by algal consumption with the microalgae feedstock. The method of the present disclosure removes 80 to 90 wt. % of the one or more hydrocarbons, 70 to 85 wt. % nitrogen, and 90 to 100 wt. % phosphorous.

BIO-BASED PRODUCTION OF N-ACETYLCYSTEINE

Resumen de: WO2026050082A1

Disclosed herein are methods for the fermentative production of N-acetylcysteine (NAC) or NAC-containing products from unicellular organisms. Also disclosed herein are genetic modifications of the NAC and/or substrate biosynthetic pathways in unicellular organisms that include bacteria, algae, microalgae, diatoms, yeast, or fungi. Further disclosed herein are fermentation and processing methods for the production of various NAC-containing products. The present disclosure further relates to use of the cells, fermentation broth or extracts that contain NAC to produce products for use in food, feed, beverages, dietary and health supplements, cosmetics, personal care, pharmaceuticals, or agricultural production.

ANTIVIRAL AGENT COMPRISING MICROALGAE EXTRACT AS ACTIVE INGREDIENT

Resumen de: WO2026049115A1

The present invention relates to an antiviral composition comprising a microalga extract as an active ingredient. More specifically, a Tetraselmis extract effectively inhibits the proliferation and replication of flaviviruses and thus can be advantageously used as an antiviral agent, a pharmaceutical composition, a health functional food composition, or a quasi-drug composition for anti-flavivirus activity.

SCHIZOCHYTRIUM POWDER FOR REDUCING METHANE EMISSIONS FROM DAIRY COWS AND PREPARATION METHOD THEREOF

Resumen de: EP4699450A1

this application relates to the technical field of feed, and specifically discloses a schizochytrium powder for reducing methane emissions from dairy cows, a method for preparing same, and a double-layer whole-cell microalgal schizochytrium powder or a whole-cell microalgal schizochytrium powder of a structure that contains a schizochytrium core and a double-layer outer coating, the powder being prepared by the method. Methanogens in a rumen can reduce carbon dioxide to CH₄ by using hydrogen. In a feed formulation of this application, a multi-layer core-coating structure is adopted; lysozyme is added in an outermost coating of a schizochytrium particle; and 4-hydroxy-3-methoxybenzoic acid, D-alloisoleucine, and D-2-aminobutyric acid are added in an intermediate coating to inhibit growth of Methanobrevibacter and Methanomicrobium, regulate microbial community structures, promote microbial community metabolism in the rumen to shift toward a propionic acid pathway, reduce the amount of acetic acid and an acetate-to-propionate ratio, promote digestion, and increase the VFA fermentation yield and the amount of propionic acid, thereby reducing methane emissions and promoting absorption of various nutrients of schizochytrium without affecting the fermentation effect of the microbial community. When put in long-term use, the feed formulation can significantly increase the content of nutrients such as DHA in milk.

Carbon reduction system using microalgae

Resumen de: KR20260024283A

본 발명은 유휴공간 상에 미세조류배양장치를 설치하여 유휴공간의 활용도를 높일 수 있고, 미세조류를 활용하여 대기 중의 이산화탄소를 포집함으로써 미세조류 배양액에 의해 공기 중 분진 등 미세물질이 제거될 수 있어 공기 오염을 저감시킬 수 있도록 하는 미세조류를 활용한 탄소 저감 시스템을 제공한다. 본 발명은 이산화탄소를 포집하고, 미세조류를 배양하기 위한 미세조류 배양장치(200)와; 상기 미세조류 배양장치(200)와 통신하고, 상기 미세조류 배양장치(200)로부터 전송되는 데이터를 저장하고, 상기 미세조류 배양장치(200)의 상태를 관리하기 위한 관리서버(300)와; 상기 관리서버(300)와 통신하고, 상기 관리서버(300)에 저장된 데이터를 확인 및 관리하며, 상기 관리서버(300)를 통해 상기 미세조류 배양장치(200)를 제어하기 위한 사용자 단말(400)을 포함하되; 상기 미세조류 배양장치(200)는 유휴공간에 모듈형으로 설치되어 탄소를 포집 및 미세조류를 생산하고, 생산된 미세조류는 가공하여 판매하는 것을 특징으로 한다.

TOYS21 Novel microalga Tetradesmus obliquus TOYS21 and its culturing method

Resumen de: KR20260021871A

본 발명은 신규한 테트라데스무스 오블리쿠스 TOYS21(Tetradesmusobliquus TOYS21) 미세조류 및 이의 배양방법에 관한 것으로, 상기 TOYS21 미세조류가 다양한 광합성 색소, 지방산 및 아미노산을 생산하고, 상기 미세조류의 광배양 최적조건을 확인함으로써, 상기 미세조류 및 이의 배양방법을 제공하고, 건강기능식품, 사료, 화장품 첨가제 등으로서 가능성을 제시할 수 있다.

CELL CULTURE COMPOSITION CONTAINING MICROALGAE EXTRACT AND USE THEREOF

Resumen de: US20260049284A1

The present disclosure relates to a cell culture composition containing an extract from microalgae of the Thraustochytrid family, and methods of preparation and use thereof.

Culture medium for cyanobacteria

Resumen de: PL449495A1

Przedmiotem zgłoszenia jest pożywka do hodowli sinic (Cyanobacteria). 1 litr (1) wytworu zawiera od 9 do 12 mg/l azotu całkowitego, od 1,3 do 2,2 mg/l NH4, od 7,5 do 10 mg/l NH2, od 13 do 23 mg/l P2O5, od 12 do 23 mg/l K2O5, od 1,5 do 3,5 mg/l MgO, od 12 do 40 mg/l SO3, od 0,25 do 1,75 mg/l B, od 0,09 do 0,21 mg/l Cu, od 0,09 do 0,16 mg/l Fe, od 0,025 do 0,225 mg/l Mn, od 0,035 do 0,32 mg/l Mo, od 0,13 do 1,1 mg/l Zn, które są rozpuszczone w wodzie destylowanej.

RED ALGAE BIOMASS EXTRACT, AND COSMETIC USE THEREOF FOR ELIMINATING SKIN IMPERFECTIONS

Resumen de: AU2024295226A1

The present invention relates to a photosensitizing polar biomass extract extracted from phycocyanin-producing organisms, in particular unicellular red algae (URA) or cyanobacteria, and to the cosmetic use thereof for preventing and/or eliminating skin imperfections, i.e. for improving the look of the skin.

METHOD TO IMPROVE THE BIOAVAILABILITY OF CAROTENOIDS IN MICROALGAE MATRICES (Machine-translation by Google Translate, not legally binding)

Resumen de: ES3055409A1

Method for improving the bioavailability of carotenoids in microalgae matrices. The present invention relates to a method for improving the bioavailability of carotenoids in microalgae matrices, as well as in food, cosmetic, or pharmaceutical compositions comprising such microalgae matrices. More specifically, the method of the invention comprises milling the microalgae matrix or applying ultrasound to the microalgae matrix. (Machine-translation by Google Translate, not legally binding)

DEVICE AND PROCEDURE FOR ONLINE MEASUREMENT OF BIOMASS CONCENTRATION IN MICROALGAE CULTURES

Resumen de: EP4692297A2

The device comprises an absorbance sensor (3), which works with three wavelengths between 400 and 700 nm, intended to emit and collect light reflected from the culture (1), and a sampling pump (2) to the circulation of the culture (1) through the absorbance sensor (3). For its part, the procedure includes the steps of illuminating the culture (1) with light with three different wavelengths, between 400 and 700 nm, collecting a light reflected from the crop (1), and obtaining the RGB colour coordinates. of the reflected light, obtain the absorbance from the RGB coordinates, perform a regression with absorbance and reference concentration data, and obtain the biomass concentration in the culture (1).

Carotenoid production methods using raceway pond systems

Resumen de: GB2643103A

A method for producing a carotenoid, wherein the method comprises a first algal culture phase comprising culturing marine carotenoid-producing microalgae in a first series of connected raceway ponds arranged in stages and the algae are maintained in the exponential growth phase by successive dilution with seawater and nutrient addition. The second algal culture phase comprises culturing the algae in one or more induction raceway ponds that are connected to the first series of connected raceway ponds from the first stage, wherein the algae are cultured in shallower water than in the final raceway pond of the first series of connected raceways ponds and in the presence of a low concentration of nitrogen, thereby inducing the algae to increase carotenoid production. The harvest phase then comprises harvesting algae from one or more of the induction raceway ponds followed by an extraction phase comprising extracting the carotenoid from the algae. A method for producing lutein, zeaxanthin and violaxanthin is also disclosed.

AQYS21 Heterotrophic culture method of Asterarcys quadricellulare AQYS21 microalgae and use thereof

Resumen de: KR20260019117A

본 발명은 아스테라시스 쿼드리셀룰라레 AQYS21 (Asterarcys quadricellulare AQYS21) 미세조류의 종속영양 배양 방법, 및 이의 이용에 관한 것으로, 빛이 차단된 암배양 조건에서 아스테라시스 쿼드리셀룰라레 AQYS21 (Asterarcys quadricellulare AQYS21) 미세조류를 종속영양 배양할 수 있는 조건을 제공해고, 상기 종속영양 배양된 아스테라시스 쿼드리셀룰라레 AQYS21 (Asterarcys quadricellulare AQYS21) 미세조류의 광합성 색소, 영양성분의 변화를 분석한 후, 알테미아(Artemia franciscana) 유생의 생존율 및 성장을 향상시킴을 확인함으로써, 아스테라시스 쿼드리셀룰라레 AQYS21 (Asterarcys quadricellulare AQYS21) 미세조류의 종속영양 배양 방법 및 이를 통해 제조된 알테미아(Artemia franciscana) 유생 성장용 조성물을 제공한다.

METHOD FOR PRODUCING MICROALGAE CONCENTRATES WITH LOW VISCOSITY

Resumen de: US20260035654A1

The present invention relates to a method for producing a microalgae concentrate with low viscosity, the method comprising a step of adjusting the pH of a microalgae fermentation broth and a heat treatment step, in which utility costs and investment costs can be reduced in a dehydration and drying step to secure price competitiveness for production and commercialization of dried microalgae products.

THIN-FILM PHOTOMICROBIAL BIOREACTOR SYSTEMS FOR THE PRODUCTION OF SECRETED CHEMICALS

Resumen de: WO2026030733A1

Provided herein are photobioreactor systems that facilitate the culture of thin films of phototrophic microorganisms to produce extracellular chemicals using sunlight and CO₂. These systems greatly reduce water and energy needs compared to traditional (e.g., suspension-based) methods employed in bioreactors. By immobilizing the microorganisms in a thin layer, these systems optimize light exposure and enable higher cell density and easier product separation, making the process more sustainable and cost-effective. These systems can be used to culture a variety of phototrophic microorganisms, including bacteria, cyanobacteria, algae, and fungi. These systems and methods can be used to produce a wide variety of important chemical products, including fuels, pharmaceuticals, and industrial chemicals including ammonia.

Non-destructive culture medium replacement device and method for microalgae

Resumen de: CN121427645A

The invention discloses a non-destructive culture medium replacement device and method for microalgae, and relates to the technical field of microbiological treatment. Comprising a frame body, a water storage assembly used for storing pure water and calcium-free seawater is arranged above the frame body, a replacement box is arranged in the middle of the frame body and used for containing a dialysis bag containing algae liquid, and the pure water or the calcium-free seawater can flow in and out at the same flow speed through a pipeline and a flow control valve; a collecting assembly used for receiving water discharged from the replacement box is arranged below the frame body. And two groups of symmetrically arranged transverse frames are fixedly mounted in the middle of the frame body. According to the device, a traditional centrifugal method is replaced by physical isolation and micro-vibration auxiliary replacement of the dialysis bag, a knocking assembly driven by a cam is matched with a spring buffer structure, the movement of liquid in the bag is accelerated, meanwhile, mechanical impact force is controlled within a certain amplitude range, it is ensured that the structure of a microalgae cell membrane is complete, and the survival rate is greatly increased; and a high-activity sample is provided for subsequent calcium signal research.

Restoration and treatment method for desertified land in alpine region

Resumen de: CN121420715A

The invention provides a restoration and treatment method for desertification land in an alpine region, and belongs to the technical field of ecological restoration of alpine degraded land. The desertification land restoration method comprises the steps that after an environment-friendly chemical sand fixing agent with the anti-freezing performance is sprayed to the surface layer of the desertification land, dominant cyanobacteria liquid in the alpine region is evenly sprayed to the surface of a mixture of sandy soil and the sand fixing agent, and green, environment-friendly and continuous restoration of the desertification land in the alpine region is achieved. According to the method, a chemical and microbial material combined repair method is adopted, the surface stability of the sandy soil is improved by using an environment-friendly chemical sand fixing agent with anti-freezing performance, the colonization of artificial algae crust is promoted, and the sand fixing method and technology of the desertified land are enriched; through colonization growth time including eight months in complete winter, the thickness of the artificial algal crust, the chlorophyll content and the relative abundance of cyanobacteria phylum are all remarkably improved, the viability of the artificial colonization algal crust is improved, operation and construction are easy, and the later maintenance cost is low.

Preparation method of wasabi seasoning

Resumen de: CN121421156A

The invention relates to the technical field of condiment preparation, and discloses a horseradish condiment preparation method which comprises the steps of multi-strain alternate fermentation pretreatment, directional enzymolysis treatment, microalgae extract synergy and flavor bridging, counter-current extraction and purification, finished product preparation and the like. Through the synergistic effect of multi-strain alternate fermentation and an enzymolysis technology and in combination with a microalgae extract synergism and flavor bridging technology, the obvious reduction of the irritation of the wasabi seasoning and the enrichment of flavor levels are realized. The technical problems that a traditional wasabi seasoning is too strong in irritation, single in flavor and insufficient in functionality are successfully solved, the irritation of the prepared wasabi seasoning is reduced by 70% or above, meanwhile, the specific peppery taste of wasabi is reserved, the wasabi seasoning has enhanced antioxidant and anti-inflammatory characteristics, the palatability and functionality of the product are remarkably improved, and the application range of the product is remarkably widened.

Method for purifying mariculture tail water by utilizing synergistic effect of microalgae

Resumen de: CN121426309A

The invention relates to a method for purifying mariculture tail water by utilizing the synergistic effect of microalgae, which specifically comprises the following steps: firstly, preparing microalgae, and enabling the microalgae to adapt to the environment through photoautotrophic conversion; secondly, carrying out salinity domestication on microalgae to obtain a microalgae culture solution; then, mixing the domesticated microalgae with mariculture tail water, and carrying out secondary domestication; then, the domesticated microalgae are inoculated into mariculture tail water, and the inoculation density is 1 * 10 < 5 >-10 < 6 > cells/mL; finally, in a culture tank or a reactor, full mixing of the microalgae and the tail water is promoted through stirring or gas stripping equipment, and purification is achieved. According to the method, the microalgae culture solution and the mariculture tail water are mixed, and the microalgae can absorb nutrient salts such as nitrogen and phosphorus in the tail water, so that the eutrophication phenomenon of the water body is effectively reduced. According to the method, harmful substances in the water body are reduced, and the pollution risk caused by tail water discharge to the environment is also reduced.

Flat plate photobioreactor for culturing microalgae which is not resistant to high temperature

Resumen de: CN121427649A

The invention discloses a flat plate photobioreactor for culturing microalgae which is not resistant to high temperature, which comprises a transparent plastic bag which is unfolded and fixed in a flat plate net rack and is used as the flat plate photobioreactor, and a cooling water pipe and an inflating pipe which are positioned in the flat plate photobioreactor, inflation pipes are attached to the two ends of the cooling water pipe respectively and penetrate through the two connector pipes at the upper end of the plastic bag respectively, sealing and binding of the external water pipe are combined with protection of the waterproof cover as the core, and algae in rainwater and dew can be effectively prevented from being mixed into the reactor to compete with target algae to grow; the problem that a traditional flat plate photobioreactor is easily polluted by foreign algae under outdoor rain and dew conditions is solved.

Device for refitting closed container into high-density cell bioreactor

Resumen de: CN223852610U

The utility model discloses a device for refitting a closed container into a high-density cell bioreactor, and relates to the technical field of water body ecological restoration. The device comprises a permeation part, a filtering part and a fixing part which are detachably connected, the permeation part comprises a semi-permeable membrane fixing disc and a first connecting part which are of an integrated structure, the semi-permeable membrane fixing disc is arranged in a closed container, and the first connecting part is connected with the fixing part and the filtering part outside the closed container through a through hole of the closed container. According to the device for refitting the closed container into the high-density cell bioreactor disclosed by the utility model, the closed container has a high-density cell culture function by arranging the filtering and permeation-permitting additional component in the closed container; the problems that an existing traditional microalgae culture device is poor in adaptability, and the algal bloom treatment technology is high in cost, low in efficiency, high in energy consumption and the like can be solved.

Intelligent aquatic plant floating ball for emergency treatment of cyanobacterial bloom and treatment method

Resumen de: CN121426312A

The invention relates to the technical field of water treatment, in particular to an intelligent aquatic plant floating ball for emergency treatment of cyanobacterial bloom and a treatment method, the aquatic plant floating ball has two structural forms, including a floating ball A and a floating ball B; the floating ball A adopts a lower hemisphere shell a1 and an upper hemisphere shell a2 which are detachably connected, the outer side of the opening end of the lower hemisphere shell a1 is in threaded connection with the inner side of the opening end of the upper hemisphere shell a2, and the two hemispheres are combined; the lower hemisphere shell a1 is made of a white PVC (Polyvinyl Chloride) material; the bottom of the first hollow PVC pipe is a plastic water-permeable grid integrated with the lower hemispherical shell a1, is used for preventing an adsorption material from falling into water under the action of gravity, serves as a water body to enter an adsorption material channel, and can realize quick response and efficient emergency in combination with the enclosure, so that the emergency treatment response time and the emergency treatment cost are greatly reduced.

MICROALGAE CULTIVATION PHOTOBIOREACTOR WITH THE ABILITY TO CLASSIFY THE CULTIVATED ALGAE AND REFINE THE FINAL PRODUCT FOR USE IN ANIMAL AND POULTRY FOOD COMPOUNDS AND HUMAN FOOD ADDITIVES

Resumen de: US20260028564A1

The present invention relates to a photobioreactor designed for the cultivation of microalgae, specifically the microalga Chlorella, with applications in animal and poultry feed as well as human food additives. This invention falls within the fields of microbiology, food preparation, human and animal nutrition, and agricultural industry practices. The photobioreactor is engineered to enable cost-effective mass production of microalgae by incorporating systems for injecting micronutrients into the culture medium. Additionally, the invention includes a classification system for sorting the produced microalgae and a refinement process for preparing the classified microalgae as a final product suitable for use in various nutritional compounds.

Building sewage purification and energy production system based on microalgae photo-biological reaction

Resumen de: CN121405313A

The invention discloses a building sewage purification and energy production system based on microalgae photobiological reaction, and belongs to the field of urban domestic sewage microalgae treatment and biomass energy collaborative production. A main body of the system is composed of an underground three-stage septic tank, a transfer sewage tank, a spherical microalgae self-mixing photo-biological reaction wall, an algae-water separator and a water storage tank. The septic tank collects sewage and feces discharged by a building, after precipitation and layering, upper-layer sewage flows into the transfer sewage tank and then is pumped into the spherical microalgae self-mixing photobiological reaction wall, pollutant degradation and microalgae biomass accumulation are completed in the photobiological reaction process, algae liquid obtained after reaction is subjected to algae-water separation through the separator, and effluent flows into the water storage tank to be recycled. Part of the separated microalgae biomass flows back to the reaction wall to maintain the efficiency stability of the system, and the other part of the separated microalgae biomass is discharged into the septic tank for co-fermentation capacity. According to the system, the sewage collection unit, the microalgae metabolism unit, the algae-water separation unit, the fermentation productivity unit and the like are integrated, so that in-situ purification and resource utilization of building sewage are rea

Microalgae intelligent photo-biological skylight control system suitable for cold region illumination adjustment

Resumen de: CN121406428A

The invention discloses a microalgae intelligent photo-biological skylight control system suitable for cold region illumination adjustment, and belongs to the technical field of building skylights and environment adjustment. The problems that an existing skylight control system cannot achieve intelligent adjustment of indoor illumination and cannot actively absorb carbon dioxide to improve the building energy efficiency and the carbon emission reduction capacity are solved. A culture cavity is formed between an upper group of double-layer light-transmitting glass and a lower group of double-layer light-transmitting glass of a skylight unit, microalgae and a culture solution are contained in the culture cavity, and a lower dimming film is arranged on the lower surface of the lower-layer glass in the lower group of double-layer light-transmitting glass; in the cold region environment, automatic adjustment and optimization of indoor illumination can be preferentially achieved through intelligent regulation and control, carbon dioxide is fixed and biomass energy is produced through photosynthesis of microalgae, and finally the energy efficiency and the carbon emission reduction capacity of a building are improved. The method is mainly applied to intelligent adjustment of indoor illumination.

Microalgae harvesting method and equipment based on membrane filtration

Resumen de: CN121406449A

The invention discloses a microalgae harvesting method and equipment based on membrane filtration, and relates to the field of microalgae cultivation. A microalgae harvesting method based on membrane filtration mainly comprises the following steps: step 1, pH value adjustment: adding an alkaline solution into a microalgae culture solution according to the type of microalgae, monitoring in real time by means of a pH sensor, regulating the pH of the microalgae culture solution to 6.5-8.5, maintaining good physiological activity and growth state of most microalgae in the pH range, and after the initial pH adjustment is completed, collecting the microalgae in the microalgae culture solution; removing high-valence ions in the microalgae culture solution by adopting an electrodialysis or cation exchange resin technology; the microalga culture solution is used for accurately adjusting pH, removing high valence ions and enhancing negative charges on the surface of the microalga, and the principle of homopolar repulsion with the ultrafiltration membrane with negative charges is utilized, so that the adsorption and deposition of the microalga on the surface of the membrane are effectively prevented, the membrane pollution degree is greatly reduced, the service life of a membrane assembly is prolonged, the membrane cleaning and replacing frequency is reduced, and the cost is reduced. And the operation cost is reduced.

Carbon source supply device for microalgae culture

Resumen de: CN223837400U

The utility model discloses a carbon source supply device for microalgae culture. The carbon source supply device comprises a high-speed motor, a motor connecting seat, a magnetic coupling motor disc, a shaft end locking nut, an isolation sleeve, a magnetic linkage coupling device disc, a magnetic linkage coupling device disc connecting key, a feeding disc, a rotating disc connecting key, a rotating disc locking nut, a fixed disc, a movable disc, a device barrel, a discharging disc and a rotating shaft, according to the device disclosed by the utility model, carbon dioxide gas and water are simultaneously introduced, gas-liquid mass transfer is enhanced in the device, an atomized state is formed, and then the carbon dioxide gas is introduced into a culture water body, so that the mass transfer effect of the carbon dioxide gas and microalgae in the water body is effectively improved, the escape rate of the carbon dioxide gas is reduced, and the utilization rate of the carbon dioxide gas is up to more than 95%; meanwhile, the air source operation cost of large-scale breeding is greatly reduced, and the air source operation cost is reduced by more than 50% on the basis of an original breeding mode.

Microalgae continuous harvesting system device

Resumen de: CN223837417U

The utility model discloses a continuous microalgae harvesting system device which comprises a disc centrifuge and a shaft type filter device, the disc centrifuge comprises an algae liquid inlet, a nutrient solution primary liquid outlet and an algae slurry outlet; the shaft type filtering device comprises an algae slurry inlet, a shaft type filter, a compressed air forward blowing port, a nutrient solution secondary drainage port, a compressed air reverse blowing port, a bottom collecting port and a bin gate; an algae slurry outlet of the disc centrifuge is connected and communicated with an algae slurry inlet of the shaft type filtering device through a pipeline; the shaft type filter is communicated with an external nutrient solution storage tank through a nutrient solution secondary liquid outlet; the compressed air back-flushing opening is communicated with the shaft type filter through the nutrient solution secondary drainage opening; the compressed air positive blowing opening is communicated with the interior of the shaft type filtering device; and a bottom collecting opening and a bin gate are arranged at the bottom of the shaft type filtering device. The water content of the material finally treated by the system device disclosed by the utility model is very low, and when the material is dried, the consumed energy consumption is low, the waste of water resources is small, and the hardware investment cost is low.

Aquaculture wastewater treatment system with phycomycete wind screen biofilm

Resumen de: CN223837191U

The utility model relates to a phycomycete wind screen biological membrane aquaculture wastewater treatment system which consists of a purification device, a collection device, a spraying device and a circulating device, wherein the purification device consists of a supporting steel frame, a microalgae biological membrane, a first biological filter bed and a second biological filter bed; the collecting device is composed of a first collecting pool and a second collecting pool; the spraying device is composed of a first spraying piece and a second spraying piece. Through the combined action of the biological filter bed, the microalgae biological membrane, the collecting pool and the like, the aquaculture wastewater treatment effect can be improved, low-cost microalgae cell harvesting can be carried out, and the problems that in a traditional aquaculture wastewater treatment technology, the process is complex, the nitrogen and phosphorus pollutant removal efficiency is low, and microalgae cells are difficult to harvest in wastewater treatment are solved; meanwhile, after absorbing nitrogen and phosphorus, the microalgae are converted into high-added-value biomass rich in protein and the like to serve as aquatic feed and bio-fertilizer, so that the economic benefit is increased, and resource recycling of the aquaculture wastewater is fully realized.

Novel xylitol biological preparation method

Resumen de: CN121406719A

The invention discloses a novel biological preparation method of xylitol. The invention relates to a novel xylitol biological preparation method, which comprises the following step of biologically converting xylose into xylitol in a heterotrophic or polyculture mode of microalgae. According to the biological preparation method of the xylitol, xylose is converted into the xylitol through physiological and biochemical reactions of microalgae, the problems that energy consumption is high, efficiency is low, sustainable development is not facilitated and the like are solved, and meanwhile the harvested chlorella can be used for producing high-added-value products.

Microalgae culture method and application thereof

Resumen de: CN121406450A

The invention provides a microalgae culture method and application thereof, in the microalgae culture method, a nitrogen source comprises industrial ammonium sulfate; the nitrogen source is continuously added into the culture medium at a fixed rate; alkali liquor wrapped by a semipermeable membrane is arranged in the culture medium. According to the method provided by the invention, industrial ammonium sulfate is adopted as a nitrogen source, so that the culture cost is remarkably reduced, and the problems of culture medium acidification and excessive heavy metal caused by one-time feeding of ammonium sulfate are relieved while sufficient nitrogen source is ensured by adopting a specific adding mode; the semi-permeable membrane coated alkali liquor dynamically responds to H < + > release caused by microalgae ammonium sulfate assimilation, so that the process steps are simplified, the process automation level is improved, the yield of microalgae carbon sequestration biomass is improved by 30% compared with sodium nitrate culture, the nutritive salt cost is reduced by 70%, and the quality of algae powder, including protein content, heavy metal components and the like, meets the standard; the operation cost of the microalgae carbon sequestration industry is greatly reduced, and the development of the microalgae carbon sequestration industry is promoted.

Construction method of microalgae-in-situ bacteria strengthening system for degrading naphthenic acid

Resumen de: CN121406482A

The invention is applicable to the technical field of industrial wastewater treatment, and provides a construction method of a microalgae-in-situ bacteria strengthening system for degrading naphthenic acid, which comprises the following steps: separating and identifying two strains of in-situ bacteria from a discharge port of an oil-producing wastewater treatment plant, and constructing a three-strain typical stain-resistant green alga-in-situ bacteria co-culture system. The strengthening system can highly tolerate and efficiently degrade naphthenic acid, can effectively remove nitrogen and phosphorus, and has higher biomass and high-value compound yield. The microalgae-in-situ bacterium strengthening system can reduce pollutant discharge and improve the microalgae resource utilization rate, and the microalgae-in-situ bacterium strengthening system can be used as a biological strengthening degradation technology of naphthenic acid and can be suitable for purification treatment of oil production wastewater and petroleum polluted water areas.

Method for promoting growth of nostoc by efficiently utilizing nitrogen source through solid-liquid culture

Resumen de: CN121406481A

The invention belongs to the technical field of microalgae biological culture, discloses a method for promoting growth of nostoc by efficiently utilizing a nitrogen source through solid-liquid culture, and aims to solve the problems of low nitrogen source utilization rate and slow biomass accumulation in the conventional culture technology. The method is based on a closed photobioreactor with gas-liquid circulation, and comprises the following steps: preparing a nitrogen-free BG11 culture medium; coating nostoc on the surface of the sterilized porous hydrophilic sponge; placing the sponge in a reactor, and adding the culture medium until no accumulated water is infiltrated; after closing the reactor, controlling the temperature, lighting and other conditions, continuously/intermittently supplementing nitrogen and maintaining certain positive pressure, and circulating the culture medium to supplement nutrition; and taking the sponge after the culture is finished. The utilization rate of a nitrogen source is remarkably increased, the biomass obtained through culture is remarkably increased, culture conditions are stable, and the method is suitable for large-scale development of nostoc and development of high-added-value products.

2- A strain of the genus Nostoc a terrestrial cyanobacterium producing 2-methylisoborneol and cultivation method thereof

Resumen de: WO2026018968A1

The present invention relates to: a Nostoc sp. strain of cyanobacteria that produces 2-methylisoborneol; and a method for culturing same. The Nostoc sp. strain according to the present invention is the first ever Nostoc sp. strain that produces 2-methylisoborneol, and considering the positive effect that 2-methylisoborneol has on the human body and the fact that 2-methylisoborneol is also used as a raw material for perfume, the HNIBRCY4 strain, which is an edible Nostoc sp. strain capable of being mass-produced, can be effectively used to produce 2-methylisoborneol.

Multi-gallery variable-tank-capacity microalgae photobioreactor

Resumen de: CN223823446U

The utility model discloses a multi-gallery variable-tank-capacity microalgae photobioreactor which comprises a reaction tank, a first partition wall and a third partition wall are sequentially arranged in the reaction tank in the flow direction, the first partition wall and the third partition wall divide the reaction tank into a first-stage tank, a second-stage tank and a third-stage tank, a second partition wall located between the first partition wall and the third partition wall is arranged in the reaction tank, and the first-stage tank, the second-stage tank and the third-stage tank are sequentially arranged in the reaction tank. The second partition wall divides the second-stage tank into at least two second-stage sub-tanks, the second partition wall is of a telescopic structure, and the first partition wall and/or the third partition wall are/is horizontally and movably arranged in the reaction tank. The reactor has the beneficial effects that the reactor is simple in structure and low in manufacturing and using cost, the tank volume can be adjusted according to the sewage inflow, and it is ensured that the reactor is in an efficient operation interval; in the growth process of algae in the pond, nitrogen, phosphorus and other substances in sewage can be effectively utilized, and the content of nitrogen, phosphorus and other pollutants in the sewage is effectively reduced.

Organic wastewater treatment device and method based on photosynthetic microbial fuel cell

Resumen de: CN121377302A

The invention discloses an organic wastewater treatment device and method based on a photosynthetic microbial fuel cell, the device comprises a light-transmitting shell, the middle part of the light-transmitting shell is fixedly connected with a closed partition plate, and the middle part of the closed partition plate is in rotary threaded connection with a separation membrane frame; by integrating the stirring blades and the reciprocating stirring assembly, the system forms a composite flow field in the cathode chamber, gas, liquid and solid interface mass transfer boundary layers are effectively destroyed, the distribution uniformity of dissolved oxygen and the material exchange efficiency among microalgae, a solution and electrodes are remarkably improved, the oxygen mass transfer process is further enhanced in combination with microbubbles released by the aeration assembly, and the aeration efficiency is improved. An optimal reaction environment is created for photosynthesis of microalgae, and a microalgae biological membrane is driven to continuously rotate by adopting a driving rotating shaft, so that the contact frequency and the mass transfer efficiency of the microalgae, air and cathode liquor are enhanced, and the electricity generation efficiency of the device is improved.

Microalgae wall breaking method by coupling low-concentration acid with gas blasting

Resumen de: CN121379820A

The invention belongs to the technical field of microalgae processing, and particularly discloses a low-concentration acid coupled gas blasting microalgae wall breaking method which comprises the following steps: mixing microalgae and a low-concentration acid solution, putting the mixture into a pressure-resistant reactor, and sealing the reaction kettle; introducing gas into the reactor to increase the system pressure to a preset value; then heating the reaction system to a preset temperature, and carrying out a stirring reaction; after the reaction is finished, the reactor is subjected to rapid pressure relief, and the microalgae wall breaking process is completed through rapid expansion of dissolved gas. The method is used for microalgae wall breaking, conditions are mild, wall breaking efficiency is high, energy consumption is low, equipment requirements are simple, operation is safe, and the problems that in the prior art, wall breaking efficiency is low, conditions are harsh, and the method is not suitable for industrial production can be solved.

Method for treating coking wastewater and synchronously producing fat by utilizing microalgae

Resumen de: CN121377346A

The invention discloses a method for treating coking wastewater and synchronously producing grease by utilizing microalgae, which comprises the following specific processes: inoculating a microalgae Parachlorella kessleri FACHB-4 seed solution into coking wastewater with a specific dilution ratio, culturing to a logarithmic phase, then centrifugally collecting algae cells, then freeze-drying the algae cells, and then extracting grease; the chromaticity range of the coking wastewater is 300-400 Hazen, the COD range is 1200-1500 mg L <-1 >, the TP range is 7-8 mg L <-1 >, the NH3-N range is 500-700 mg L <-1 >, the dilution ratio of the coking wastewater is 50%-70%, and the culture conditions are as follows: the pH is 6.8-7.0, the culture temperature is 24-26 DEG C, the illumination intensity is 3500-4000 lux, the light-dark ratio is 12 h: 12 h, and the rotating speed of a shaking table is 140-160 r/min. The method provided by the invention can improve the water quality of coking wastewater and obtain grease for biological energy production at the same time.

Method for reducing inhibition of free nitrous acid on toxicity of microalgae

Resumen de: CN121377353A

The invention discloses a method for reducing inhibition of free nitrous acid on toxicity of microalgae, and belongs to the technical field of biology and new medicine. In order to solve the problem that free nitrous acid (FNA) in a microalgae-nitrifying bacteria co-culture system destroys a microalgae photosynthetic system and inhibits growth, alpha-ketoglutaric acid with the final concentration of 0.5-1.0 mM is exogenously added into the microalgae-nitrifying bacteria co-culture system, so that carbon and nitrogen metabolism of microalgae is regulated and controlled, the tolerance of the microalgae to FNA is enhanced, the photosynthetic efficiency and biomass of the microalgae are remarkably improved, and the microalgae-nitrifying bacteria co-culture system can be used for preparing the microalgae-nitrifying bacteria co-culture system. The ammonia nitrogen removal rate and the system stability are improved; the method is easy and convenient to operate, low in cost, suitable for high-ammonia-nitrogen wastewater treatment and capable of assisting long-term stable operation of a phycomycete symbiotic system.

Microalgae low-cost culture and tail water ecological cycle treatment system

Resumen de: CN121377430A

The invention discloses a microalgae low-cost cultivation and tail water ecological circulation treatment system, cultivation tail water is connected with a disc centrifuge through a pipeline after sequentially passing through a tail water adjusting tank, a microstrainer, an ozone disinfection cabinet and microalgae cultivation equipment, and the disc centrifuge is connected with a fresh algae tank through a pipeline; the disc centrifuge conveys the breeding wastewater to a water distribution channel in the multi-stage ecological purification-resource coupling system through another pipeline, the water distribution channel is sequentially connected with a hydroponic vegetable area, an emergent aquatic plant area and a submerged plant area, and the submerged plant area returns and conveys effluent to a tail water adjusting tank through a pipeline; and tail water circulation is realized. And the purified water can be reused in a microalgae culture link, so that a closed-loop circulation of aquaculture tail water-microalgae production-purification-reclaimed water reuse is formed, and the consumption of fresh water resources is greatly reduced. By integrating hydroponic vegetable planting and fish and shrimp breeding, an ecological chain of resource recycling is formed, and bidirectional extension of the added value of products is achieved.

Biomimetic thermophilic cyanobacteria stabilizer biological particle and preparation method thereof

Resumen de: CN121370810A

The invention discloses a biomimetic thermophilic cyanobacteria stabilizer biological particle and a preparation method thereof. The biomimetic thermophilic cyanobacteria stabilizer biological particle comprises a polyphosphate-amino acid core particle and a phospholipid layer coated on the surface of the polyphosphate-amino acid core particle, the polyphosphate-amino acid core particles are divalent metal-polyphosphate-amino acid ternary ligands formed by self-assembly of polyphosphate and amino acid under the crosslinking action of divalent metal cations. The preparation method provided by the invention simulates a biosynthesis mechanism of a thermophilic cyanobacteria stabilizer, the bionic stabilizer is self-assembled and synthesized through a three-step method, and the preparation process is simple and suitable for large-scale production. The bionic stabilizer particles prepared by the invention are highly similar to natural stabilizers in chemical composition, structure and function, are high in purity, uniform in morphology and good in biocompatibility, have excellent thermal stability, can meet strict requirements in the fields of high-end biomedicine, health food and the like, and have huge application value and commercial prospect.

Bacteria-algae symbiotic integrated culture tail water treatment system and method

Resumen de: CN121377345A

The invention discloses a bacterial-algae symbiotic integrated culture tail water treatment system and method. The culture tail water treatment system comprises a regulating reservoir, a submersible sewage pump, a multi-stage coupling biochemical treatment unit and a shellfish purification unit, the submersible sewage pump is arranged at an outlet of the adjusting tank; the multi-stage coupling biochemical treatment unit comprises an aeration biochemical pool, a biological filter bed and an aerobic denitrification microalgae biological membrane unit which are sequentially connected in series; the biological filter bed takes a rice husk layer and a pelelith layer as biological carriers; the aerobic denitrification microalgae biological membrane unit comprises microalgae and functional bacteria, the functional bacteria are bacilli weldmanni and escherichia marmoreus, the microalgae fix CO2 and release oxygen through photosynthesis, and the functional bacteria degrade nitrides through heterotrophic nitrification-aerobic denitrification; the shellfish purification unit is arranged at the water outlet end of the multi-stage coupling biochemical treatment unit and is used for filtering residual microalgae and suspended particulate matters in the water body. The invention further provides a tail water treatment method, nitrogen and phosphorus are efficiently removed, energy consumption is reduced, secondary pollution is avoided, and resource utilization can be achieved.

Linkage mechanism and continuous harvesting device

Resumen de: CN223823585U

The utility model relates to the technical field of pipeline reinforcement, in particular to a linkage mechanism which comprises a frame body, a movable column, a screen mesh and a harvesting unit, the frame body is arranged on one side of the movable column, the screen mesh is arranged on one side of the frame body, the linkage unit is arranged on one side of the harvesting unit, the harvesting unit comprises an algae outlet pump, a recycling pool and a harvesting barrel, the algae outlet pump is arranged on one side of the recycling pool, and the harvesting barrel is arranged on one side of the recycling pool. The harvesting barrel is arranged on the other side of the recycling pool. The microalgae harvesting device has the advantages that the screen is automatically hung on the hooks or microalgae are automatically unloaded from the screen, the microalgae harvesting procedure can be carried out through a simple mechanical structure, and meanwhile labor cost and cost are saved through a linkage mechanism.

Rapid biofilm culturing device for bacteria-algae membrane

Resumen de: CN223823447U

The utility model provides a fast biofilm culturing device for bacteria and algae membranes, which relates to the field of water treatment and comprises a culture tank (10), a cover plate (20) and an expanding culture-biofilm culturing reactor (30), first reflective layers (11) are uniformly arranged on the side wall of an inner cavity of the culture tank, and first luminous bodies (12) are uniformly arranged on the side surface of one side, far away from the culture tank (10), of each first reflective layer (11); a limiting ring (21) and a sealing ring (22) are arranged on the bottom surface of the cover plate (20); a second light reflecting layer (23) and a second luminous body (24) are arranged on the inner side of the limiting ring (21); the expanding culture-biofilm culturing reactors (30) are uniformly arranged in the inner cavity of the culturing tank (10), and a third luminous body (13) is arranged between every two adjacent expanding culture-biofilm culturing reactors (30). The device can realize rapid biofilm formation of microalgae, the biofilm formation time is short, the biofilm formation condition is controllable, and the treatment effect and efficiency of the circulating aquaculture water body are effectively improved.

Membrane coupling type microalgae reactor and method

Resumen de: CN121377309A

The invention discloses a membrane coupling type microalgae reactor in the field of sewage treatment, and the membrane coupling type microalgae reactor comprises a water supply assembly used for supplying to-be-treated sewage; the first reactor is communicated with the water outlet of the water supply assembly, the first reactor comprises a rotatable biological membrane structure and an aeration structure, and the sewage is primarily treated through a biological membrane; the second reactor is communicated with the first reactor; the ceramic membrane separation unit is communicated with the second reactor and is used for carrying out cross-flow filtration on sewage discharged from the second reactor so as to realize collection of a biological membrane and microalgae and conveying the biological membrane back into the first reactor; the invention further discloses a sewage treatment method. The sewage treatment device has the beneficial effects that microalgae growth and biomass accumulation can be enhanced through two-stage mixed culture of the first reaction cylinder body and the second reaction cylinder body, illumination of the biological modified filler is more uniform, the sewage treatment performance is improved, and the device is lower in energy consumption.

Treatment system and method for high-nitrogen low-carbon aquaculture tail water

Resumen de: CN121377324A

The invention provides a treatment system and method for high-nitrogen low-carbon aquaculture tail water, the treatment system comprises at least two circulating beds, the circulating beds respectively comprise a first circulating bed and a second circulating bed, and each circulating bed comprises a filter tank, a middle tank, a symbiotic wet curtain and a circulating pipeline; the biological filter material located in the first circulating bed is inoculated with nitrifying bacteria, the biological filter material located in the second circulating bed is inoculated with denitrifying bacteria, the symbiotic wet curtain comprises a plurality of curtain cloths arranged at intervals, and the curtain cloths are formed by weaving hydrophilic modified fiber materials. Through the synergistic effect of the symbiotic wet curtain and the filter tank, the synergistic efficiency of bacteria and algae is improved, a huge attachment area and a stable growth space are provided for microorganisms such as nitrifying bacteria, denitrifying bacteria and microalgae through the symbiotic wet curtain, and attachment is provided for the nitrifying bacteria through the suspended aerobic filter material; the anaerobic filter material is used for adhering denitrifying bacteria, so that the loss of biomass is reduced.

COMPOSITIONS AND METHODS FOR TREATING AND PREVENTING INFLAMMATION AND MALNUTRITION

Resumen de: WO2026019757A1

Provided herein are compositions and methods for treating and preventing inflammation and malnutrition. In particular, provided herein are compositions comprising spirulina and microalgae or marine oils and use of such compositions, for example, as nutritional supplements and meal replacements for use in treating and preventing disease, inflammation, and malnutrition.

NOSTOC SP. STRAIN OF CYANOBACTERIA PRODUCING 2-METHYLISOBORNEOL, AND METHOD FOR CULTURING SAME

Resumen de: WO2026018968A1

The present invention relates to: a Nostoc sp. strain of cyanobacteria that produces 2-methylisoborneol; and a method for culturing same. The Nostoc sp. strain according to the present invention is the first ever Nostoc sp. strain that produces 2-methylisoborneol, and considering the positive effect that 2-methylisoborneol has on the human body and the fact that 2-methylisoborneol is also used as a raw material for perfume, the HNIBRCY4 strain, which is an edible Nostoc sp. strain capable of being mass-produced, can be effectively used to produce 2-methylisoborneol.

AIR PURIFICATION APPARATUS USING MICROALGAE

Resumen de: KR20260010791A

미세조류를 이용하여 이산화탄소를 포집하고, 산소를 배출하기 위한 공기 정차 장치가 개시된다. 상기 공기 정화 장치는 미세조류를 포함한 배양액이 상부를 통해 인입된 적어도 하나의 배양관과, 상기 적어도 하나의 배양관의 내부에 관 형태로 배치되어 상기 적어도 하나의 배양관 내부로 광원을 방출하는 적어도 하나의 광원 방출부와, 상기 적어도 하나의 배양관의 내부에 관 형태로 배치되어, 외부로부터 유입된 공기를 상기 적어도 하나의 배양관 내부로 방출하거나, 이하의 배양관 커버부로 공급하여 상기 적어도 하나의 배양관 내부로 방출하는 공기 방출부와, 상기 적어도 하나의 배양관의 상부에 결합되며, 상기 광원 방출부에 전압을 공급하고, 흡입된 공기를 상기 적어도 하나의 배양관 내부로 방출하거나, 상기 공기 방출부로 공급하는 배양관 커버부를 포함한다.

NOVEL METHOD OF PRODUCING AN ALGAE COMPOSITION

Resumen de: US20260022315A1

A system and method for growing microalgae capable of mixotrophic metabolism, preferably Chlorella sp. Microalgae grown in the system using the method are able to survive and grow in dark refrigeration, which allows the algae to be stored and transported for application as a live culture. In addition, the microalgae can be grown in sufficient quantities to be sold commercially for application to crops as a biostimulant.

High value product (HVP) production methods using raceway pond systems

Resumen de: GB2642749A

A method for producing a high value product (HVP), wherein the method comprises: (a) a first algal culture phase, comprising culturing marine HVP-producing microalgae in a first series of connected raceway ponds, maintained in the exponential growth phase by successive dilution with seawater and nutrient addition; (b) a second algal culture phase, comprising culturing the algae in one or more induction raceway ponds (that are connected to the first series of connected raceway ponds in which algae are cultured in step (a)), wherein the algae are cultured under stress conditions that induce the algae to increase HVP production; (c) a harvest phase, comprising harvesting algae from one or more of the induction raceway pond(s) in which algae are cultured in step (b); and (d) an extraction phase, wherein the extraction phase comprises extracting the HVP from the algae harvested in step (c). Also a raceway pond system comprising: (a) a linear series of connected raceway ponds comprising a first stage comprising one or more covered raceway ponds 210A-210D and a second stage comprising one or more open raceway ponds 210E; and (b) at least two series of induction raceway ponds that are connected, in parallel, to the final raceway pond of the linear series of connected raceway ponds.

Transgenic synechocystis strain with enhanced stress resistance to various heavy metal ions, and construction method and application thereof

Resumen de: CN121362717A

The invention discloses a transgenic synechocystis strain with enhanced stress resistance to various heavy metal ions as well as a construction method and application of the transgenic synechocystis strain, and belongs to the technical field of microorganisms. The transgenic synechocystis algal strain is constructed by integrating a cyanobacteria high expression promoter and a gene HMP3 of a human metallothionein artificial mutant into a synechocystis PCC6803 genome. Detection shows that the transgenic synechocystis strain shows remarkably enhanced stress resistance under the stress condition of heavy metal ions such as Cr < 6 + >, Pb < 2 + > and Cd < 2 + >. Compared with a wild type algal strain, the transgenic synechocystis algal strain has higher activity of superoxide dismutase (SOD) and catalase (CAT), and the content of phycobiliprotein, chlorophyll a and carotenoid is also maintained at a higher level. The invention provides an effective method for constructing a transgenic synechocystis strain resistant to stress of various heavy metal ions, and provides a technical means for application of microalgae in heavy metal sewage treatment.

Microalgae emulsion and preparation method thereof

Resumen de: CN121359774A

The invention relates to the technical field of food, in particular to microalgae emulsion and a preparation method thereof. The microalgae emulsion provided by the invention comprises chlorella pyrenoidosa subjected to green removal; and a liquid phase for dispersing the chlorella pyrenoidosa, wherein the liquid phase consists of water and corn oil. The chlorophyll content of the chlorella pyrenoidosa subjected to green removal is extremely low, meanwhile, the protein content of the chlorella pyrenoidosa subjected to green removal is extremely high, and the formed microalgae emulsion can be milky white, so that the adverse effect of conventional green chlorella on food sense organs can be reduced, and meanwhile, the green chlorella pyrenoidosa subjected to green removal is prepared based on the effect of a liquid phase composed of water and corn oil and the chlorella pyrenoidosa subjected to green removal. The microalgae emulsion disclosed by the invention also has good stability; therefore, the microalgae emulsion disclosed by the invention has very good stability and consumer acceptability, and has a very good application prospect in the field of foods.

Biological cushion material based on microalgae, preparation method of biological cushion material and application of biological cushion material in sandy soil improvement

Resumen de: CN121362584A

The invention discloses a biological cushion material based on microalgae, a preparation method of the biological cushion material and application of the biological cushion material in sandy soil improvement, and belongs to the technical field of agricultural ecological restoration. The preparation method of the biological cushion material comprises the following steps: (1) adding a microalgae suspension into a reaction kettle, adding glycerol according to the proportion, heating to 38-42 DEG C, stirring and dissolving, adding cationic starch, and stirring and mixing uniformly; and (2) adding polyurethane into the material prepared in the step (1), uniformly stirring, then adding sodium lignin sulfonate, reacting for 10-14 minutes at a constant temperature, and filtering the mixed liquid to obtain the biological cushion material. The microalgae is prepared from chlorella sorokiniana (Chlorella sorokiniana), Anabaena sp.) and Nodulcia cf.Harveyana (Nodulcia cf.Harveyana) according to a quantity ratio of 60: 20: 20, and the microalga is prepared from chlorella sorokiniana (Chlorella sorokiniana), Anabaena sp.) and Nodulcia cf.Harveyana (Nodulcia cf.Harveyana). The concentration of microalgae in the microalgae suspension is 1 * 10 < 6 >-1 * 10 < 7 >/mL; the addition amounts of the glycerol, the cationic starch, the sodium lignin sulfonate and the polyurethane are respectively 1 to 1.5 weight percent, 2 to 3 weight percent, 0.6 to 1 weight percent and 10 to 30 weight

APPARATUS FOR CULTIVATING MICROALGAE AND METHOD THEREFOR

Resumen de: US20260013453A1

The present invention relates to a microalgae cultivation apparatus and method. A microalgae cultivation apparatus includes a cultivation vessel which has a cultivation space for accommodating a culture medium and cultivates microalgae therein, a gas supply unit configured to supply gas to the cultivation vessel, a gas discharge portion configured to discharge gas that has passed through the culture medium of the cultivation vessel, a sensor unit installed inside the cultivation vessel, an actuator unit installed inside the cultivation vessel, a microalgae collection device configured to collect the microalgae cultured in the cultivation vessel, and a control device configured to control at least one of the gas supply unit, the gas discharge portion, and the actuator unit to generate an environment for cultivating the microalgae, collect cultivation information through the sensor unit, and control the microalgae collection device to collect the microalgae based on the collected cultivation information.

Microalgae polyculture method for adjusting organic carbon source supply through dissolved oxygen content feedback and application

Resumen de: CN121362641A

The invention discloses a microalgae polyculture method for adjusting supply of an organic carbon source through dissolved oxygen content feedback and application, and belongs to the technical field of microalgae culture, the method comprises the following steps: an autotrophic stage: introducing air into a culture reactor, and enabling cells to reach a certain concentration through autotrophic growth; in the polyculture stage, ventilation is stopped, dissolved oxygen is monitored in real time, starting and stopping of an organic carbon source pump are dynamically adjusted, and mixed nutrition is achieved; and continuous production: setting a dilution rate, continuously harvesting, supplementing the culture medium, and continuously operating. The addition of an organic carbon source is accurately controlled through the concentration feedback of dissolved oxygen, the photosynthetic and heterotrophic metabolism rates are matched, no net oxygen production (stable DO) is ensured, oxygen self-balance in the system is realized, and finally, the conversion rate of carbon is greatly increased and can reach 0.85 or above. According to the method, the microalgae productivity is remarkably improved under the condition of no gas exchange, and a new thought is provided for large-scale culture with low energy consumption and high carbon efficiency.

Edible solid fermentation product and preparation method thereof

Resumen de: CN121337004A

The invention discloses an edible solid-state fermentation product and a preparation method thereof. The preparation method comprises the following steps: culturing microalgae to obtain a microalgae culture, preparing a granular edible substrate, carrying out first fungus culture to obtain a fungus culture, and mixing the microalgae culture and the edible substrate to form an edible solid-state culture medium. And then, adding the fungus culture into the edible solid culture medium, and carrying out second fungus culture to form an edible solid fermentation product. And finally, performing drying treatment to form edible solid-state fermentation powder containing rich fungi and metabolites thereof, and microalgae and metabolites thereof. The edible solid fermentation product provided by the invention maintains nutritional ingredients of fungi and microalgae to the greatest extent, and cell walls of the microalgae are decomposed through the fungi, so that more microalgae metabolites are generated.

Microalgae composite sugar powder as well as preparation method and application thereof

Resumen de: CN121337003A

The invention relates to the technical field of food processing, in particular to microalgae composite sugar powder as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a sweetening agent, a wall material, microalgae powder and water, and shearing to obtain primary slurry; carrying out homogenization treatment on the primary slurry to obtain secondary slurry; and carrying out spray drying on the secondary slurry to obtain the microalgae composite sugar powder. According to the technical path, an algae-sugar integrated interface is constructed, the inherent problems of sensory defects, poor physical properties, chemical instability and the like of microalgae can be synchronously solved, and an ideal burdening solution is provided for efficient application of microalgae components in public daily food such as baking, beverages, candies and the like.

Method for increasing content of native Omega-3 fatty acid in animal products

Resumen de: CN121336920A

The invention provides a method for increasing the content of native Omega-3 fatty acid in animal products. Microbial fermentation is utilized to produce a microalgae powder preparation with rich nutrient substances, the microalgae powder preparation is mixed into daily ration to feed ruminants, and the original milk containing Omega-3 fatty acid is obtained. The total Omega-3 fatty acid content of the animal product reaches 54 to 65 mg/100 mL, and the DHA content of the animal product reaches 31 to 35 mg/100 mL; the EPA content reaches 10 to 12 mg/100 mL; the DPA content reaches 4 to 6 mg/100 mL; the content of ALA (Alkaline A) reaches 7 to 12 mg/100 mL. According to the method disclosed by the invention, the palatability, the oxidation stability and the biological synergistic conversion rate of animals are solved, and meanwhile, the content of the Omega-3 fatty acid in the raw milk is obviously increased.

Microalgae treatment pond for aquaculture processing wastewater

Resumen de: CN121342208A

The invention provides a microalgae treatment pond for aquaculture processing wastewater, and belongs to the technical field of wastewater treatment. Comprising a tank body, a guide wall is arranged in the center of the bottom wall of the tank body and used for dividing the tank body into an aerobic zone and an anoxic zone, and a stirring and flow pushing mechanism is arranged in the tank body and located in the aerobic zone and used for pushing water in the tank body to circularly flow; the stirring and flow pushing mechanism comprises a rotating frame rotationally arranged in the aerobic zone, and mounting boxes are arranged on the outer side of the rotating frame at equal intervals. A stirring and flow pushing mechanism is arranged in the aerobic zone, water in the tank body can be driven to circularly flow, the activity of microorganisms can be improved, pollutants such as nitrogen, phosphorus and organic matter in wastewater can be more efficiently absorbed, converted or removed, meanwhile, a pushing and rotating assembly is arranged and can drive the paddle to rotate after the paddle enters water again, and therefore the sewage treatment effect is improved. The two sides of the paddle can obtain higher shearing force, so that a microbial film is fully stripped, and microbial loss caused by accumulation of the microbial film is prevented.

Microalgae membrane biological coupling sewage purification equipment

Resumen de: CN121342224A

The invention discloses microalgae membrane bio-coupling sewage purification equipment in the technical field of sewage purification. The microalgae membrane bio-coupling sewage purification equipment comprises a treatment tank, a mud-water separation membrane and a drainage pipe located below the mud-water separation membrane, in the process of carrying out microalgae and microorganism coupled purification on sewage, the swing mechanism is arranged on the surface of the mounting frame, so that the filter screen can be turned over, and the swing mechanism is limited by the limiting mechanism, so that the swing mechanism and the mounting frame are kept stable; the swing mechanism extrudes the elastic telescopic piece; after sewage treatment is finished, the limiting mechanism relieves limiting of the swing mechanism, the elastic telescopic piece extends to release elastic potential energy to bounce the swing mechanism and the filter screen upwards, the position where the filter screen is installed is exposed, airflow can directly pass through, the airflow exchange rate of the upper portion and the lower portion of the installation frame and the gas exchange membrane is increased, and the pressure difference is reduced; and the mounting frame and the gas exchange membrane can be stably and quickly lifted.

Method for two-stage synergistic purification of aquaculture tail water by microalgae and photosynthetic bacteria

Resumen de: CN121342227A

The invention provides a method for two-stage synergistic purification of aquaculture tail water by microalgae and photosynthetic bacteria, and the method comprises the following steps: mixing aquaculture tail water with microalgae, introducing carbon dioxide, carrying out first-stage treatment and solid-liquid separation under an illumination condition, collecting liquid, mixing with photosynthetic bacteria, carrying out second-stage treatment, and carrying out solid-liquid separation, purified tail water is obtained. According to the method, the microalgae and the photosynthetic bacteria take pollutants of the aquaculture tail water as nutrient elements required by growth, two-stage treatment is carried out, the aquaculture tail water is synergistically purified, and the total nitrogen content is reduced to an extremely low level on the premise of ensuring that the total phosphorus content, the permanganate index, the suspended matter content and the pH value reach the standard.

Composite microbial preparation for promoting tobacco growth and preparation method and application thereof

Resumen de: CN121343804A

The invention relates to the technical field of biological preparations, in particular to a compound microbial preparation for promoting tobacco growth and a preparation method and application thereof. The invention provides a composite microbial preparation for promoting tobacco growth. The composite microbial preparation comprises the following components in parts by mass: 20-30 parts of a composite microbial agent, 3-9 parts of microalgae, 8-14 parts of penicillium inactivated mycelium, 1-6 parts of humic acid, 1-6 parts of potassium fulvate and 40-60 parts of a protective agent. The compound microbial preparation disclosed by the invention not only can provide nutrition required by growth and development of tobacco, but also can regulate soil microorganisms and improve a soil structure, so that the growth of the tobacco is promoted, and the yield and the quality of the tobacco are improved; the compound microbial preparation is safe and effective, and is beneficial to healthy development of agriculture.

Preparation method of microalgae carrier and application of microalgae carrier in immobilized enzyme

Resumen de: CN121343770A

The invention discloses a preparation method of a microalgae carrier and application of the microalgae carrier in immobilized enzyme. According to the method, chlorella, nannochloropsis and schizochytrium are taken as objects, and microalgae residues are modified to be prepared into a microalgae carrier by utilizing pretreatment of a deep eutectic solvent in which the ratio of n (ChCl) to n (glycerol) is 1: 2 in combination with an ultrasonic-assisted technology, and the microalgae carrier is used for immobilizing lipase. According to the method, the utilization rate of microalgae can be increased, resource waste and environmental pollution are reduced, a systematic technical path is provided for full-component high-value utilization of microalgae grease and residues, and application and expansion of green enzyme engineering in the fields of food processing and biological manufacturing are expected to be promoted.

Microalgae membrane separation and harvesting device

Resumen de: CN223805088U

The utility model discloses a microalgae membrane separation and harvesting device, which belongs to the technical field of microbial culture and comprises a liquid storage barrel and a filter channel formed by splicing and combining a plurality of split structures and used for harvesting microalgae, the filtering channel comprises a plurality of split cylinders which are detachably connected, and a plurality of layers of filtering membranes of which the pore diameters are gradually reduced are sequentially arranged in each split cylinder from top to bottom. Microalgae cells are cultured through a columnar photobioreactor, the algae cells are separated through membrane filtration, algae liquid is discharged from the bottom of a cone at the lower end of a column, supernate is discharged in a filtration mode, the algae cells are attached to the membrane, the discharged supernate can continue to culture the algae cells, microalgae mud on the multilayer harvesting membrane is scraped off through filtration, and the microalgae cells are collected through the membrane. The microalgae mud is obtained; therefore, the harvesting cost of large-scale cultured microalgae is reduced, the harvesting time is shortened, and the harvesting efficiency is improved; the cyclic utilization of the culture solution greatly reduces the treatment capacity, and the microalgae culture and harvesting process is simple and convenient to operate.

High-purity PDRN extract derived from microalgae and preparation method thereof

Resumen de: CN121343981A

The present disclosure relates to a high purity PDRN extract derived from microalgae and a method for preparing the same. Specifically, the high-purity PDRN extract derived from microalgae according to the present disclosure uses microalgae, which can be massively cultivated at any time without being limited by the external environment or time, as a raw material, thereby facilitating production and having excellent sustainability, and is safe without the risk of human being infected by foreign viruses, and thus has a low molecular weight, and thus, when applied to products such as cosmetics, the PDRN extract can be easily produced. And the skin absorption rate is excellent.

HIGH-PURITY PDRN EXTRACT DERIVED FROM MICROALGAE AND MANUFACTURING METHOD THEREOF

Resumen de: US20260015605A1

The present disclosure relates to a high-purity PDRN extract derived from microalgae and a preparation method thereof. Specifically, the high-purity PDRN extract derived from microalgae according to the present disclosure is easy to produce and highly sustainable by using microalgae capable of being mass-cultivated at any time without external environmental or time constraints as a raw material, is safe due to no risk of human infection by exogenous viruses, and can also be excellent in skin absorption when applied to products such as cosmetics due to its low molecular weight.

EXTRACELLULAR VESICLES FROM MICROALGAE, THEIR USE FOR VACCINES AND FOR IMMUNOMODULATION

Resumen de: US20260014092A1

Provided are vaccines and immunomodulatory compositions containing extracellular vesicles from microalgae (MEVs) that are loaded with bioactive cargo, that includes antigens and/or immunomodulatory proteins, nucleic acids, and nucleic acid encoding the proteins. The MEVs are formulated and administered by a variety of routes of administration that are advantageous for modulating the immune systems. Vaccines include those that are therapeutic for treating a disease, disorder, or condition, those that elicit an immunoprotective response, and/or otherwise modulate the immune system. The compositions include MEVs containing cargos for modulating intracellular receptors.

MICROALGAE CULTIVATION APPARATUS AND METHOD

Resumen de: US20260013453A1

The present invention relates to a microalgae cultivation apparatus and method. A microalgae cultivation apparatus includes a cultivation vessel which has a cultivation space for accommodating a culture medium and cultivates microalgae therein, a gas supply unit configured to supply gas to the cultivation vessel, a gas discharge portion configured to discharge gas that has passed through the culture medium of the cultivation vessel, a sensor unit installed inside the cultivation vessel, an actuator unit installed inside the cultivation vessel, a microalgae collection device configured to collect the microalgae cultured in the cultivation vessel, and a control device configured to control at least one of the gas supply unit, the gas discharge portion, and the actuator unit to generate an environment for cultivating the microalgae, collect cultivation information through the sensor unit, and control the microalgae collection device to collect the microalgae based on the collected cultivation information.

METHOD FOR MANAGING PRODUCTION OF PLANT GROWTH PROMOTING SUBSTANCE, METHOD FOR PRODUCING PLANT GROWTH PROMOTING SUBSTANCE, APPARATUS FOR MANAGING PRODUCTION OF PLANT GROWTH PROMOTING SUBSTANCE, AND PROGRAM

Resumen de: WO2026014489A1

A method for managing the production of plant growth promoting substance according to the present disclosure includes determining the degree of progress in production of a plant growth promoting substance on the basis of the activity value of lipopolysaccharide contained in a cyanobacterial culture supernatant. The degree of progress is determined, for example, on the basis of time-series data of the activity value of lipopolysaccharide from the start of cyanobacterial culture. The degree of progress may also be determined in accordance with the rate of change of the activity value calculated from the time-series data.

NEW STRAIN OF THE MICROALGA HAEMATOCOCCUS PLUVIALIS WITH HIGH ASTAXANTHIN YIELD

Resumen de: WO2026013292A1

The present invention relates to a strain of microalgae belonging to the genus Haematococcus with a high astaxanthin yield, and to a method for producing astaxanthin; in particular, the invention relates to a strain of the microalga Haematococcus pluvialis comprising at least 5% astaxanthin by weight relative to the total weight of Haematococcus pluvialis dry matter.

NEW COSMETIC USES OF AN EXTRACT OF THE TETRADESMUS OBLIQUUS MICROALGA

Resumen de: WO2026013164A1

The present invention relates in particular to the cosmetic or nutraceutical use of an extract of the Tetradesmus obliquus microalga or of an oily ingredient comprising same, for increasing the pigmentation of the skin and/or the hair and nails, advantageously the hair, and/or for maintaining the uniformity of the complexion and/or for preparing the skin for tanning and/or for promoting relaxation and well-being.

Lead ion removal method based on microalgae-MOF composite system and method for preparing biodiesel

Resumen de: CN121318016A

The invention discloses a lead ion removal method based on a microalgae-MOF composite system and a method for preparing biodiesel, and the method comprises the following steps: adding an amino-modified MIL-101 (Fe) type metal organic framework material NH-MIL-101 (Fe), namely MOF, into a Pb-containing water body to be treated, so that the MOF is uniformly dispersed; the method comprises the following steps: inoculating Chlorella vulgaris in the presence of MOF, and enabling MOF particles to be spontaneously attached to the surfaces of algae cells through electrostatic attraction and hydrogen-bond interaction to form a microalgae-MOF composite system; co-culturing the composite system under the conditions of illumination, temperature control, pH control and oscillation, and carrying out adsorption and heavy metal removal treatment on a Pb-containing water body by utilizing a synergistic adsorption-bioremediation mechanism of the MOF and the microalgae. According to the method, the bottlenecks that single microalgae is prone to poisoning and single MOF is prone to saturation are solved, heavy metal removal and microalgae biomass appreciation are synchronously achieved, and secondary pollution is avoided.

Microalgae xanthophyll fortified health-care food and preparation method thereof

Resumen de: CN121312810A

The invention belongs to the field of functional food and microalgae bioengineering, and discloses a microalgae xanthophyll enhanced health food and a preparation method thereof.A mild cosolvent synergistic extraction system, a xanthophyll stabilized nano-embedding system and a multi-component synergistic enhancement system are constructed, and the functional food and the microalgae xanthophyll enhanced health food is prepared. The high stability and the high utilization rate of the xanthophyll in the extraction, storage and absorption processes are realized. According to the method, microalgae xanthophyll is extracted by utilizing a green solvent system, and a nano embedding structure is formed by adopting a natural polysaccharide material, so that the thermal stability and the oxidation resistance of the xanthophyll are remarkably improved; meanwhile, a natural antioxidant is introduced to be compounded with prebiotics, so that the in-vivo absorption and function synergistic effect of the xanthophyll are enhanced. The whole process is mild and environment-friendly, the components are safe and edible, the problem of organic solvent residues is avoided, and the preservation property and nutritional activity of the xanthophyll are improved.

Operation isolation reactor for promoting growth of microalgae cells

Resumen de: CN223793131U

The utility model discloses an operation isolation reactor for promoting microalgae cell growth, which comprises a shell, a top cover is arranged at the upper end of the shell, a dustproof plate is fixedly connected in the top cover, a motor is arranged at the inner bottom of the top cover, an output shaft of the motor is fixedly connected with a rotating frame, and the rotating frame is fixedly connected with the shell. Water in the water tank is pumped out through the heat conducting plate and the water pump, water flow enters the water through groove through the water inlet pipe, the water flow makes contact with the heat conducting plate to dissipate heat on the heat conducting plate, and the water flow enters the water outlet pipe through the water through groove and flows back into the water tank. Water flow passes through the heat dissipation fins, the fan cools the heat dissipation fins, then the backflow water flow is cooled through the heat dissipation fins, the interior of the water tank is divided into two areas through the partition plate, the backflow water is blocked at one ends of the heat dissipation fins, and the water flow can make full contact with the heat dissipation fins conveniently.

Method for preparing platform compound by microalgae fermentation

Resumen de: CN121320100A

The invention discloses a method for preparing a platform compound by utilizing microalgae fermentation, which comprises the following steps: (1) selecting microalgae species, and culturing the microalgae for expanding the species and growing by using CO2 or CO2 mixed gas as a carbon source under illumination; (2) transferring the microalgae obtained in the step (1) into a culture medium, and continuously carrying out illumination culture on the microalgae by taking CO2 or CO2 mixed gas as a carbon source, so as to obtain microalgae with high carbohydrate content; (3) hydrolyzing the microalgae with high carbohydrate content obtained in the step (2) by using an acid hydrolysis method to obtain microalgae hydrolysate; and (4) putting the microalgae hydrolysate obtained in the step (3) into a fermentation container, and adding fermentation microorganisms to obtain the fermentation chemicals. According to the method disclosed by the invention, various chemicals can be prepared by taking the microalgae biomass as a substrate and combining a fermentation process, so that the production cost is reduced, the sustainable development is promoted, the production process is simplified, and the production efficiency is improved.

Microbial preparation for ecological restoration of saline-alkali soil through synergism of bacteria and algae

Resumen de: CN121320129A

The invention discloses a microbial preparation for ecological restoration of saline-alkali soil through bacteria-algae synergism, and relates to the technical field of ecological restoration, the microbial preparation comprises an active microbial flora, a microalgae group, a composite protective agent and a carrier; according to the method, closed-loop substance circulation of nitrogen/phosphorus/carbon source supplied by bacteria and oxygen/photosynthetic product supplied by microalgae is adopted, the function limitation of a single strain or algae of a traditional microbial preparation is broken through, the colonization efficiency and the ecological restoration efficiency in the saline-alkali environment are remarkably improved, sodium alginate, chitosan and bentonite are adopted as microcapsules for embedding, and the ecological restoration effect is improved. Trehalose and skimmed milk powder are used for protecting nutritional ingredients, decomposed straw and attapulgite clay are used as carriers for slow release, so that a triple protection mechanism is formed, microcapsules resist high saline-alkaline osmotic pressure through physical embedding, and trehalose and skimmed milk powder are used as osmotic protective agents to stabilize a cell structure; the decomposed straw and the attapulgite clay slowly release bacteria and algae through a porous structure and provide a slow-release carbon source, so that the survival rate of the microbial preparation in a saline-al

Algae growth-promoting bacterium and application thereof in promoting growth of microalgae and cooperatively treating anaerobic wastewater in duck farm with microalgae

Resumen de: CN121320157A

The invention belongs to the technical field of sewage treatment, and particularly discloses an algal growth-promoting bacterium and application thereof in promoting growth of microalgae and cooperatively treating duck farm anaerobic wastewater with the microalgae, the algal growth-promoting bacterium is Citrobacter Portualensis PA1, is preserved in Guangdong Microbial Culture Collection Center on September 16, 2025, and has a preservation number of GDMCC NO: 66969, and the algal growth-promoting bacterium is preserved in the Guangdong Microbial Culture Collection Center on September 16, 2025, and is preserved in the Guangdong Microbial Culture Collection Center on September 16, 2025, and the preservation number is GDMCC NO: 66969. The algae growth-promoting bacterium is applied to promotion of microalgae growth and cooperative treatment of duck farm anaerobic wastewater with microalgae. Compared with the prior art, the combination of the algae growth-promoting bacterium and the microalgae has a better purification effect on anaerobic sewage in a duck farm than single microalgae treatment, and the bacterial strain has a good promotion effect on the growth of the microalgae and can play a better effect in practical application.

Microalgae culture and soil remediation integrated device based on photobioreactor

Resumen de: CN121289237A

The invention relates to the technical field of soil remediation, and discloses a photobioreactor-based microalgae culture and soil remediation integrated device which comprises a mounting frame, at least one reactor body is mounted on the outer side of the mounting frame, and a third conveying pipe is connected to the bottom of the reactor body through a pipeline; a plurality of fourth conveying pipes are communicated with the outer side of the third conveying pipe, drippers are connected to the ends, away from the third conveying pipe, of the fourth conveying pipes, and a second control valve is installed on the outer side of the third conveying pipe; a dispersion mechanism; a carbon feeding mechanism; a carbon spoiler mechanism; a distance adjusting mechanism; a sensor module; and a central control module. According to the invention, the microalgae culture efficiency is improved through the efficient dispersion mechanism; a sensor and a central control module are utilized to realize full-automatic control of culture and liquid discharge processes, so that the automation level is improved; and the integrated distance-adjustable drip irrigation mechanism can accurately apply fresh algae liquid to target soil, so that the pertinence and applicability of soil remediation are enhanced.

Rapid microalgae culture method for shellfish seedling culture based on photobioreactor and cement pond

Resumen de: CN121294128A

The invention relates to the technical field of shellfish breeding, in particular to a rapid microalgae breeding method for shellfish breeding based on a photobioreactor and a cement pool. The method comprises the following steps: firstly, optimizing a photobioreactor structure and an illumination layout, controlling a culture environment by matching with a multi-parameter regulation and control system, breeding microalgae seeds with high resistance and high carbon sequestration capacity, culturing to a preset density, and partially harvesting and inoculating into a cement pond, after partial harvest, the photobioreactor realizes continuous culture by supplementing disinfected seawater and nutritive salt; the harvested high-density microalgae are inoculated into a cement pond, nutritive salt is supplemented in a doubled mode, air and carbon dioxide mixed gas is used for continuous aerated culture, and the microalgae are promoted to rapidly reach the index growth period and used for being directly fed to shellfish larvae; according to the rapid microalgae breeding method for shellfish seedling culture, the yield and quality of microalgae are both considered, the success rate and productivity of aquatic seedling culture are effectively improved, the production cost and the labor intensity of workers are reduced, and the method is suitable for large-scale popularization.

Composition with anti-aging, anti-wrinkle, elasticity enhancing and skin barrier repairing effects and application thereof

Resumen de: CN121287566A

The invention relates to a composition with anti-aging, anti-wrinkle, elasticity enhancing and skin barrier repairing effects and application thereof. The composition with anti-aging, anti-wrinkle, elasticity enhancing and skin barrier repairing effects comprises golden microalgae and a simulated extracellular matrix protein (ECMP) combination, and the mass ratio of the golden microalgae to the simulated extracellular matrix protein (ECMP) combination is (0.1-10): (0.5-10); wherein the simulated extracellular matrix protein combination ECMP is formed by combining collagen, elastin and fibronectin, and the mass ratio of the collagen to the elastin to the fibronectin is 1: (1-5): (1-5). The anti-aging, anti-wrinkle, elasticity enhancing and skin barrier repairing effects are achieved by adding the simulated extracellular matrix protein combination ECMP and combining the golden microalgae. According to the invention, the improvement of anti-oxidation and anti-inflammation capacities is comprehensively considered, the endogenous matrix protein production capacity is also improved while exogenous matrix protein supplementation is carried out, and the anti-oxidation and anti-inflammation damage degradation capacity is improved.

New application of Mo2C MXene nano material in promotion of growth of chlorella

Resumen de: CN121294148A

The invention discloses a novel application of a Mo2C MXene nano material in promoting growth of chlorella and a culture method of chlorella. Through research on the performance of the Mo2C MXene nano material, it is found for the first time that co-culture of the Mo2C MXene nano material and chlorella can significantly improve the growth rate, photosynthesis efficiency and biomass accumulation of chlorella, and the Mo2C MXene nano material can be applied to the field of culture of chlorella. The technical problem that the current chlorella is difficult to meet the large-scale production requirement can be solved, and a new technical scheme is provided for large-scale production and application of microalgae.

Method for degrading 6PPD-Q through combination of chlorella and molybdenum carbide nano material

Resumen de: CN121292671A

The invention discloses a method for degrading 6PPD-Q through combination of chlorella and a molybdenum carbide nanomaterial, which comprises the following steps: inoculating a chlorella strain into an algae culture medium, culturing under a constant temperature condition to obtain a chlorella suspension, mixing the chlorella suspension with a Mo2C MXene suspension to obtain a mixed solution containing chlorella and Mo2C MXene at the same time, adding a molybdenum carbide nanomaterial into the mixed solution, and uniformly stirring to obtain the 6PPD-Q degradation product. Adding the mixed solution into a polluted water body containing the 6PPD-Q to form a reaction system, and reacting under the condition suitable for the growth of chlorella to degrade the 6PPD-Q in the polluted water body. The chlorella and the molybdenum carbide nano material are combined to construct a synergistic degradation system, the biological metabolism and adsorption capacity of microalgae and the catalytic activity of Mo2C MXene are fully played, the degradation efficiency of 6PPD-Q is improved, and meanwhile, the toxic risk and the cost burden existing in a traditional treatment method are avoided.

Microalgae P450 enzyme mediated non-nitrite dependent anaerobic ammonia oxidation denitrification method and device

Resumen de: CN121292643A

The invention provides a microalgae P450 enzyme mediated non-nitrite dependent anaerobic ammonia oxidation denitrification method and a microalgae P450 enzyme mediated non-nitrite dependent anaerobic ammonia oxidation denitrification device. The method comprises the following steps: adding a photocatalyst into a mixed flora taking anaerobic ammonia oxidation as a core, exciting photo-induced electrons to induce in-situ enrichment of microalgae, and constructing a photocatalytic coupled bacteria-algae hybrid system. A'starvation-trace addition 'circulating feeding strategy is adopted, interspecific feeding of heterotrophic bacteria with algae source glycogen as a unique carbon source is achieved, salicylic acid is synthesized to promote loading of microalgae P450 enzyme cofactors (ferriporphyrin and Fe-S clusters), generation of NADPH and enrichment of NADPH in a P450 positioning area are improved in combination with'segmented light distribution', and efficient activation of P450 enzyme is completed. The method comprises the following steps: catalyzing ammonia nitrogen to generate hydroxylamine through P450 enzyme under the condition that ammonia nitrogen is used as a unique water inlet condition, so as to form a microalgae P450 enzyme mediated non-nitrite dependent anaerobic ammonia oxidation denitrification mode. The method breaks through the traditional bottleneck of scarce nitrite depending on sewage, and has the advantages of high denitrification efficiency, greenhouse ga

Seedling raising method for improving chlamys farreri metamorphosis rate

Resumen de: CN121286378A

The invention discloses a breeding method for increasing the metamorphosis rate of chlamys farreri, and belongs to the technical field of chlamys farreri breeding. The number and the putting position of substratum in a breeding pond are reasonably controlled, compound fresh bait is applied, the proportion of microalgae in the bait and the concentration of the applied bait are controlled, and EM bacteria are applied, so that the metamorphosis rate of chlamys farreri is increased; by means of the method, the chlamys farreri larva metamorphosis rate is increased, manual operation and seawater consumption in the larva metamorphosis period are reduced, and the method has important significance in improving the seedling raising effect and improving economic benefits.

Method for controlling chrysophyceae pollution in chlorella culture by utilizing extracellular polymer generated in microalgae culture process

Resumen de: CN121294150A

The invention relates to a method for controlling chrysophyceae pollution in chlorella culture by using an extracellular polymer generated in a microalgae culture process in the field of bioengineering and environmental engineering, which comprises the following steps: firstly, culturing microalgae in a culture medium or wastewater, collecting the microalgae, extracting the extracellular polymer, adding the extracellular polymer into a chlorella culture environment, and culturing the chlorella in a culture medium or wastewater; the method is used for preventing and treating predatory chrysophyta in the microalgae culture process. The method provided by the invention has the advantages of safety, no pollution, simplicity in operation, low cost and the like, and can be suitable for culture processes of chlorella of different scales and different types.

METHOD OF PRODUCING A FATTY ESTER FROM MICROALGAE

Resumen de: WO2026008764A1

The invention relates to a method of producing an ester of a fatty acid and a C1-C4 alcohol, comprising successive steps of: cultivating cells of a microalga strain on a growth medium, harvesting the cultivated cells and concentrating them to obtain a wet cell pellet, suspending said wet cell pellet in an hydroalcoholic solution comprising said C1-C4 alcohol, incubating the cell 5 suspension thus formed so as to form said ester of a fatty acid and a C1-C4 alcohol by transesterification and/or esterification of lipids produced by the microalga cells catalyzed by endogenous enzymes of said cells, and recovering said ester of a fatty acid and a C1-C4 alcohol from said cell suspension. The growth medium can advantageously be a dark fermentation effluent.

METHOD OF SYNTHESIZING A BIOLOGICAL PRODUCT AND RELATED PIPE ARRANGEMENT FOR PERFORMING THE METHOD

Resumen de: WO2026008156A1

A method of synthesizing a biological product (1) is presented. The method comprises (S1) supplying process water (2) to a pipe arrangement (10) with a plurality of pipe sections (11ij), wherein the pipe sections (11) are cascaded in a descending order, (S2) providing microalgae (3) to the process water (2), (S3) retaining the microalgae-enhanced process water (2, 3) in and letting it run through the pipe sections (11) consecutively, wherein the process water (2, 3) first enters an elevated pipe section (1111) and then enters a lower pipe section (1112) driven by gravity, and (S4) exposing the process water (2) in the pipe sections (11ij) to an irradiation (4) such that the microalgae (3) are allowed to grow under the irradiation (4), wherein a part of the water (H2O) evaporates. Moreover, a related pipe arrangement is presented.

DIRECT AIR CARBON SEQUESTRATION SYSTEM AND METHOD USING COMPOUND ALGAE LIQUID COUPLED WITH MOISTURE SWING ADSORBENT

Resumen de: WO2026007284A1

Provided are a direct air carbon sequestration system and method using a compound algae liquid coupled with a moisture swing adsorbent, relating to the technical field of air capture. The system comprises a CO2 adsorption device (2), a microalgae carbon sequestration device (3), and a solution-microalgae separation device (4). Ultralow-concentration carbon dioxide (400 ppm) in the atmosphere is captured by means of moisture swing adsorbents (5), and the carbon dioxide can be adsorbed by means of a compound algae liquid; on the basis of different pH values of the algae liquid, the CO2 adsorption device (2) uses different adsorption-desorption operating modes, so that the recycling rate of the adsorbents is greater than 80%; the algae liquid can be recycled by means of photosynthesis, and two carbon sources of a carbon-rich algae liquid and a high-concentration carbon dioxide gas are continuously and stably supplied; and therefore, direct air carbon dioxide capture and sequestration are achieved with high efficiency and low costs.

METHOD OF PRODUCING A FATTY ESTER FROM MICROALGAE

Resumen de: EP4674972A1

The invention relates to a method of producing an ester of a fatty acid and a C₁-C₄ alcohol, comprising successive steps of: cultivating cells of a microalga strain on a growth medium, harvesting the cultivated cells and concentrating them to obtain a wet cell pellet, suspending said wet cell pellet in an hydroalcoholic solution comprising said C₁-C₄ alcohol, incubating the cell suspension thus formed so as to form said ester of a fatty acid and a C₁-C₄ alcohol by transesterification and/or esterification of lipids produced by the microalga cells catalyzed by endogenous enzymes of said cells, and recovering said ester of a fatty acid and a C₁-C₄ alcohol from said cell suspension. The growth medium can advantageously be a dark fermentation effluent.

METHOD FOR MANUFACTURING SALMON AQUACULTURE FEED USING NUTRIENT-RICH MICROALGAE SCHIZOCHYTRIUM SP. BIOMASS

Resumen de: EP4674278A1

A feed composition comprising microalgae-derived biomass according to the present application uses microalgae having a high content of protein, fat, and minerals and free of factors that degrade feed quality, and thus can be effectively used as a fish feed composition.

Method for reducing antibiotic-resistant bacteria and antibiotic-resistant genes in wastewater

Resumen de: CN121269980A

The invention relates to the technical field of biological environmental protection, in particular to a method for reducing antibiotic-resistant bacteria and antibiotic-resistant genes in wastewater. The invention provides a method for reducing antibiotic resistance bacteria and antibiotic resistance genes in wastewater. The method comprises the following steps: mixing an extreme thermophilic and acidophilic microalgae culture with sewage, and culturing in a photobioreactor. According to the method, the extremely thermophilic and acidophilic microalgae are used for sewage treatment, so that not only can the abundance of ARB be reduced, but also the relative abundance of ARGs (qnrA, qnrS, tetW and intI1) in living bacteria can be reduced, and finally, the purpose of controlling ARG and ARB is achieved; meanwhile, the effect of the algae system for controlling the ARG and the ARB is better than that of a conventional secondary treatment system for controlling the ARG and the ARB, and the propagation of antibiotics to the environment can be reduced to the maximum extent.

Fuel production method using microalgae culture provided in a landfill

Resumen de: KR20260001796A

본 발명은 매립지에 미세조류 배양지를 구축하고 여기서 배양한 조류 바이오매스를 이용하여 바이오 항공유를 생산하는 기술에 대한 것이며, 매립 종료된 매립지의 안정화 부지 상부에 구비되는 미세조류 배양지를 설치하는 1단계; 상기 미세조류 배양지에서 미세조류를 배양하는 2단계; 및 상기 1단계에서 배양된 미세조류를 이용하여 항공유를 생산하는 3단계;를 포함하여 이루어지며, 매립지를 활용하며 매립지에서 배출되는 가스를 이용하여 미세조류를 배양하고 이를 통해 지속가능한 연료를 생산할 수 있는 효과가 발휘된다.

Microalgae carbon sequestration system and use method thereof

Resumen de: CN121270004A

The invention belongs to the technical field of microalgae carbon sequestration, and particularly relates to a microalgae carbon sequestration system, which comprises a precipitation sewage tank, a floating algae liquid tank, a primary reaction column and a water purification tank, sewage in the precipitation sewage tank and floating algae liquid in the floating algae liquid tank are respectively put into the primary reaction column for mixing, standing is carried out, and precipitates are formed; purified water in the first-stage reaction column flows into a purified water tank after being discharged. According to the invention, the sewage is precipitated by using the precipitation sewage tank, part of precipitates in the sewage are removed, then floating algae are added into the first-stage reaction column for removing ammonia nitrogen in the sewage, finally the sewage enters the second-stage reaction column, nitrate nitrogen in the sewage is removed by using fixed algae and nitrifying bacteria in the second-stage reaction column, and the whole system is connected in series, so that the sewage treatment efficiency is improved. Ammonia nitrogen and phosphorus in the sewage can be effectively removed.

Aquaculture wastewater deep purification and algae fertilizer co-production system based on algal-bacterial symbiosis

Resumen de: CN121269974A

The invention relates to the technical field of wastewater treatment and resource utilization, and provides a culture wastewater deep purification and algae fertilizer co-production system based on algal-bacterial symbiosis, the system comprises an algal-bacterial symbiosis reaction zone, an intelligent regulation and control system and an algae fertilizer quality control system, the algal-bacterial symbiosis reaction zone comprises a biological membrane zone and a microalgae zone, the biological membrane area is used for treating the breeding wastewater and completing conversion from ammonia nitrogen to nitrite; the microalgae area is communicated with the biological membrane area, the wastewater treated by the biological membrane area enters the microalgae area, and the microalgae area is used for purifying the wastewater; the algae fertilizer quality control system is communicated with the water outlet end of the microalgae area, the algae fertilizer quality control system comprises an air flotation separation device and a drying machine, the air flotation separation device is used for purifying algae slurry, and the drying machine is connected with the air flotation separation device and is used for drying the separated algae fertilizer. The treatment effect on the breeding wastewater can be improved.

Microalgae carbon sequestration device

Resumen de: CN223752732U

The utility model relates to the technical field of ecological environmental protection, in particular to a microalgae carbon sequestration device which comprises a box body, a top frame is installed on the top of the box body, a gas guide pipe is installed on the top frame, the bottom end of the gas guide pipe is rotatably connected with a rotating pipe inserted into the box body in a sliding mode, and the top of the box body is connected with a backflow pipe connected with the gas guide pipe. A return pipe is arranged in the box body, a one-way valve is arranged on the return pipe, the top end of the rotating pipe is in transmission connection with a driving assembly, a fixed ring is fixed on the inner side of the box body, and a gas distribution assembly arranged outside the rotating pipe in a sleeving manner is arranged in the fixed ring. And redundant gas enters the gas guide pipe again from the return pipe, so that the cyclic dissolution work of the carbon dioxide gas is completed, excrement deposited in the collecting hopper is cleaned, and the excrement is conveniently and intensively guided out of the box body from the blow-off pipe.

Method for injecting CO2 in spirulina culture in absence of light

Resumen de: CN121263511A

In general, the invention relates to a device for supplying a plant for growing microalgae, and in particular for growing spirulina, with water in which a given content of CO2 has been dissolved, characterized in that the device enables the dissolution (1, 8, 4...) of CO2 under light-tight conditions, the device is located outside and adjacent to the incubation facility.

Method for researching influence on hemolytic activity of marine microalgae based on transcriptome technology

Resumen de: CN121249843A

The invention discloses a method for researching influence on hemolytic activity of marine microalgae based on a transcriptome technology, and relates to the field of hemolytic activity analys.The method comprises the steps that pretreatment is conducted on the marine microalgae based on culture requirements, and cystic morphological cell density and hemolytic activity of the marine microalgae are measured according to experimental design rules after pretreatment is completed; carrying out transcriptome sample collection operation by utilizing the marine microalgae subjected to pretreatment, constructing a library according to a transcriptome sample collection result, and obtaining a gene function annotation and a differential expression gene result; the growth conditions of the marine microalgae under different temperature conditions are analyzed according to cystic morphological cell density and hemolytic activity, and the regulatory gene influencing the hemolytic activity of the marine microalgae is obtained by combining gene function annotation and differential expression gene results. According to the method, the hemolytic activity of the marine microalgae cultured under different temperature conditions is extracted, so that the aim of researching related metabolic pathways possibly participating in toxin synthesis and hemolytic activity regulation is fulfilled.

High-value cyanobacteria ZYS and application thereof

Resumen de: CN121249525A

The invention relates to high-value cyanobacteria ZYS and application thereof. The algal strain is preserved in the China General Microbiological Culture Collection Center (CGMCC) on July 9, 2025, and the preservation number is CGMCC NO. 46458. The algal strain has excellent culture characteristics of high growth speed, high biomass, good salt tolerance, strong biological pollution resistance and easiness in settling and harvesting. An amplification culture experiment proves that the strain has remarkable large-scale culture potential, and a foundation is laid for industrial application. Besides, the algal strain is rich in phycocyanin and can be used for efficiently synthesizing a high-added-value compound GG (Glyceroglucoside), and the yield of the GG per unit volume can reach 98.35 mg/L/OD730 under the conventional culture condition. The algal strain disclosed by the invention integrates high yield, high stress resistance and high-value product synthesis capability, is remarkable in economic value, and provides a new excellent algal strain for microalgae resource development.

microalgae cultivation photoreactor for capturing carbon dioxide

Resumen de: KR20260000247A

본원발명은 이산화탄소 포집용 미세조류 배양을 위한 광배양기에 관한 것으로 배양관의 교체 및 세척이 용이하여 가정용 또는 실내 인테리어용으로 사용하기에 적합한 장점이 있다.

MARINE MICROALGAL PROTEIN PREPARATIONS

Resumen de: US20260000094A1

A protein preparation may be obtained from dried lipid extracted marine algae. The novel hydrolysate has high solubility and digestibility, low ash content, and high protein content (measured as g amino acid/g of product), with an essential amino acid profile that makes an excellent protein supplement for human consumption. The process utilizes a hydrolyzation reaction at high solids content to minimize water footprint and ash content, while increasing its solubility and digestibility.

PLATFORM FOR BIO-BASED PRODUCTION OF HIGH LEVELS OF O-PHOSPHOSERINE, CYSTEATE, OR TAURINE

Resumen de: US20260002180A1

Methods for the fermentative production of O-phosphoserine, cysteate, or taurine in microbes or unicellular organisms that contain a serB mutation that either decreases serB expression, reduces the amount of the serB gene product or results in a serB gene product with low enzymatic activity. Genetic modifications of the O-phosphoserine, cysteate, or taurine and/or substrate biosynthetic pathways in unicellular organisms that include bacteria, algae, microalgae, diatoms, yeast, or fungi are disclosed. Also disclosed are fermentation and processing methods for the production of various O-phosphoserine-, cysteate-, or taurine-containing products and the use of the cells, fermentation broth or extracts that contain O-phosphoserine, cysteate, or taurine to produce products for use in food, feed, beverages, dietary and health supplements, cosmetics, personal care, pharmaceuticals, agricultural production, or surfactants.

Method for preparing a rich liquid food supplement based on microalgae

Resumen de: MA66491A1

The invention describes a method for developing a liquid food supplement rich in proteins and amino acids, polyphenols and phycocyanin from microalgae. The method includes, as a main step, the enzymatic decomposition of cell walls to release their contents into the extract, without degradation or change in its composition. The compounds released include free proteins and amino acids, phenolic compounds and phycocyanin contained in the phycobilisome. The liquid product obtained by said method preserves high antioxidant activity and the characteristics of a food supplement “Rich in proteins” and/or “Rich in free amino acids” and/or “Rich in phycocyanin” and/or “Rich in polyphenols » and/or “Rich in antioxidants”.

Method for purifying wastewater by using MgFe-LDH modified charcoal reinforced microalgae

Resumen de: CN121225767A

The invention relates to a wastewater purification method, in particular to a method for purifying wastewater by using MgFe-LDH modified biochar reinforced microalgae, which comprises the following steps: preparing MgFe-LDH modified biochar; co-culturing the modified biochar and microalgae, and determining the optimal addition amount of the MgFe-LDH modified biochar by comparing the growth condition of the microalgae; and inoculating the MgFe-LDH modified charcoal and microalgae into the wastewater for purification. Compared with the prior art, the method has the advantages that a CO2-rich microenvironment is created for the microalgae in the wastewater by constructing an algae-carbon co-culture system, the inherent limitation of insufficient carbon supply in a solution is improved, the growth of the microalgae in the wastewater is promoted, and the wastewater purification effect of the chlorella is further enhanced. The method is simple and convenient to operate, low in preparation cost, high in wastewater purification efficiency of microalgae and high in environment adaptability of an algae carbon system, and the purposes of fixing CO2 and efficiently purifying wastewater can be achieved.

System and process for preparing biogas through microalgae carbon sequestration and biogas purification

Resumen de: CN121227405A

The invention discloses a system and a process for preparing biogas through microalgae carbon sequestration and biogas purification. The system comprises a photosynthetic carbon sequestration biogas purification reactor module, a gas detection system, a deoxygenation module and a microalgae biomass collection module, the photosynthetic carbon sequestration biogas purification reactor module is a multi-stage closed photosynthetic bioreactor, and all stages of closed photosynthetic bioreactors are connected in sequence; marsh gas enters from a gas inlet of the first-stage closed photosynthetic bioreactor and sequentially passes through all stages of closed photosynthetic bioreactors for marsh gas purification, and gas at a gas outlet of the last-stage closed photosynthetic bioreactor enters a deoxidizing device for deoxidizing; and the gas which does not reach the purification standard of each stage of reactor flows back to the current stage of reactor for re-purification. The process provided by the invention is used for treating biogas generated by anaerobic digestion of organic wastes, introducing the biogas into a bioreactor, and absorbing CO2 by microalgae to realize gas purification.

Chlamydomonas reinhardtii strain with high exosome yield

Resumen de: CN121227521A

The invention relates to the technical field of microalgae biology, in particular to a chlamydomonas reinhardtii strain with high yield of exosomes, which is named as Chlamydomonas reinhardtii YYAW026 and preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC NO.46629, the preservation date is November 10, 2025, and the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing. Compared with an original strain, the chlamydomonas reinhardtii cell provided by the invention cannot form a complete cell wall structure, so that the exosome can be quickly secreted into a culture solution; although the cell structure of the strain is incomplete, the strain can still perform normal cell activity, the growth curve is basically consistent with that of a wild type, the yield of the exosome of the strain is greater than that of the wild type when the strain reaches a plateau phase, and the particle size distribution width of the exosome is more concentrated. The chlamydomonas reinhardtii disclosed by the invention has a relatively good application prospect in the basic research fields of cosmetics, medical beauty industry and algae source exosomes.

Aquaculture tail water treatment system and method based on shellfish appreciation and microorganism water purification

Resumen de: CN121220401A

The invention discloses a culture tail water treatment system and method based on shellfish appreciation and microorganism water purification, and belongs to the cross technical field of aquaculture and water environment governance, the system mainly comprises a microorganism treatment unit and a shellfish culture unit which are connected in sequence, the microorganism treatment unit is used for treating culture tail water through an immobilized biological membrane and segmented aeration, and the shellfish culture unit is used for treating culture tail water. The device can flexibly operate in a nitrogen control mode and a nitrogen removal mode; by means of the core regulation and control unit, the system operates in a nitrogen control mode in the shellfish growing period, the proper nitrogen and phosphorus concentration is maintained so as to nourish microalgae for shellfish to filter and eat, and rapid fattening of shellfish and removal of water particles are achieved; according to the method, tail water treatment is converted into a benefit growth point from a cost center, an endogenous circulation mode of purifying water with fish and culturing fish with water is formed, and unification of environmental benefits and economic benefits is achieved.

Ecological intensive mariculture tail water intelligent treatment system and method

Resumen de: CN121225799A

The invention belongs to the technical field of environmental engineering and pollution treatment, and particularly relates to an ecological intensive mariculture tail water intelligent treatment system and method.The ecological intensive mariculture tail water intelligent treatment system comprises a pretreatment and solid waste recycling module, a primary purification module, a biological collaborative purification module and a deep purification module; the pretreatment and solid waste recycling module comprises a high-density sedimentation tank, the primary purification module comprises a microalgae open pond, the biological collaborative purification module comprises a mixed culture area, and the deep purification module comprises an artificial wetland area. An outlet in the upper end of the microalgae open pond is connected with an inlet in the upper end of the mixed culture area through a pipeline I; according to the system, a biological treatment mode is adopted, the inherent defect of a single method in the prior art is overcome, standard discharge of mariculture tail water is achieved, green, ecological and efficient development of the breeding industry is promoted, and the win-win situation of ecological environment protection and economic benefit improvement is achieved.

Energy-saving illumination and temperature coordinated regulation and control device

Resumen de: CN223738047U

The utility model discloses an energy-saving illumination and temperature coordinated regulation and control device, and belongs to the field of microalgae cultivation. An energy-saving illumination and temperature coordinated regulation and control device comprises a supporting plate and further comprises a light guide pipe fixedly connected to the supporting plate, a diffuser is arranged at the bottom of the light guide pipe and arranged below the supporting plate, and a brightness sensing assembly is arranged in the light guide pipe; the connecting plate is fixedly connected to the bottom of the supporting plate, an illuminating lamp is connected to the connecting plate in a lifting mode, a temperature sensing assembly is arranged on the illuminating lamp, and when the light source in the light guide pipe is detected by the brightness sensing assembly, the temperature sensing assembly and the illuminating lamp ascend or descend; according to the utility model, the position height and the switch of the illuminating lamp can be controlled, and the illuminating lamp is matched with the light guide pipe for use, so that unnecessary power consumption can be reduced, and the energy efficiency is improved.

Chlorella pyrenoidosa mutant strain APMT04 and application thereof

Resumen de: CN121227522A

The invention provides a yellow chlorella pyrenoidosa mutant strain APMT04 and an application of the yellow chlorella pyrenoidosa mutant strain. The chlorella pyrenoidosa mutant strain APMT04 is obtained through a chemical mutagenesis method, compared with an original strain, the chlorella pyrenoidosa mutant strain APMT04 has the advantages that the growth speed of chlorella cells under the heterotrophic condition is higher, and meanwhile, the chlorophyll content of the chlorella pyrenoidosa mutant strain APMT04 is reduced by 90% or above, but the chlorella pyrenoidosa mutant strain APMT04 contains high-content xanthophyll, so that the And the extract also contains high-content protein and grease, can be used as byproducts of xanthophyll extraction, and can be used in the fields of food, feed and the like. When the chlorella pyrenoidosa mutant strain APMT04 is used for producing xanthophyll, the later-stage extraction and preparation process of xanthophyll can be simplified, the sensory acceptance of algae powder is improved, protein and grease rich in the algae powder can serve as by-products of xanthophyll extraction, and high-quality germplasm resources are provided for industrial production and application of microalgae xanthophyll.

Method for promoting microalgae growth by using pharmaceutical product

Resumen de: CN121203932A

The invention belongs to the technical field of microalgae biology and culture, and particularly relates to a method for promoting microalgae growth by using a pharmaceutical product, which comprises the following steps: activating microalgae on a solid flat plate, inoculating the activated microalgae into a liquid culture medium, adding the pharmaceutical product at the initial stage of microalgae growth, placing in a constant-temperature shaking table, and carrying out illumination culture. According to the method, different types of pharmaceutical products with different concentrations are added into the microalgae, the influence of the addition of the different types of pharmaceutical products with different concentrations on the growth promotion of the microalgae is analyzed, the biomass of the chlorella can be rapidly increased, and the method has important significance on the large-scale production of the microalgae.

Accumulation method of cyanobacteria grease and high value-added metabolites under nitrogen starvation stress

Resumen de: CN121204176A

The invention relates to the technical field of preparation of blue-green algae biological resources, in particular to a method for accumulating blue-green algae grease and high-added-value metabolites under nitrogen starvation stress, which comprises the following steps: after carrying out plasma mutagenesis screening on blue-green algae, inoculating an improved BG-11 culture medium and activating to OD680 1.2-1.8; carrying out gradient switching of a nitrogen source according to an inoculum size of 10-15%, carrying out pre-culture for 4-6 days, and regularly supplementing vitamin C; carrying out flow monitoring on the nitrogen content of the cells, and carrying out mild and severe dynamic nitrogen starvation stress culture for 4-7 days; adding a nano-loaded composite inducer on the first day of severe stress, and performing pulse stirring culture for 2-3 days; after near-infrared monitoring reaches the standard, antioxidant is added for harvesting, and the biomass is subjected to freezing pretreatment. The high value-added metabolite is an ultraviolet absorbing substance (mycosporine-like amino acid and pseudocystin), phycocyanin or gamma-linolenic acid. According to the method, high-yield strains are screened through mutagenesis, gradient pre-culture and dynamic nitrogen starvation regulation are combined, and a nano-loaded composite inducer and real-time monitoring are matched, so that the grease and metabolite accumulation efficiency is directionally improved, and the ca

Novel sewage ecological treatment system and treatment method

Resumen de: CN121202360A

The invention discloses a novel sewage ecological treatment system and a treatment method. Comprising a biological membrane filter and a multi-medium ecological filter bed, wherein the biological membrane filter sequentially comprises a ventilation tower, a water inlet system, a biological contact oxidation zone, an air inlet and a water storage tank from top to bottom, and the air inlet and the parts above the air inlet are arranged above the ground; the multi-medium ecological filter bed is arranged corresponding to the water storage tank; the multi-medium ecological filter bed sequentially comprises a biological contact denitrification area, a sand filtration area, a special functional area and a microalgae and plant purification area from bottom to top; and the lower part of the water storage tank of the biological membrane filter distributes water to the biological contact denitrification area of the multi-medium ecological filter bed through a secondary water distribution pipe. The system disclosed by the invention can be used as a tail water advanced treatment facility of municipal and industrial sewage plants, and has the advantages of low energy consumption, low maintenance and operation cost, high sewage treatment efficiency, strong adaptive capacity and impact resistance and difficulty in blockage.

Ultrasound-controllable multifunctional microneedle patch as well as preparation method and application thereof

Resumen de: CN121197013A

The invention discloses an ultrasonic controllable multifunctional microneedle patch as well as a preparation method and application thereof, and belongs to the technical field of biological materials. The preparation method comprises the following steps: preparing crystalline CoW-LDH nanosheets from Co (NO3) 2.6 H2O, Na2WO4. 2H2O and NaOH, dispersing the crystalline CoW-LDH nanosheets in PBS (Phosphate Buffer Solution), centrifuging and collecting the crystalline CoW-LDH nanosheets, and re-dispersing the crystalline CoW-LDH nanosheets in ultrapure water to obtain amorphous CoW-LDH nanosheets; adding PEG (Polyethylene Glycol), ultrasonically dispersing, stirring at room temperature, centrifuging, collecting and centrifugally washing with ultrapure water to obtain a PEG modified amorphous CoW-LDH nanosheet; and adding microalgae and an amorphous CoW-LDH nanosheet modified by PEG (Polyethylene Glycol) to prepare the ultrasonic controllable multifunctional microneedle patch. The multifunctional microneedle patch disclosed by the invention is high in biological safety, can realize ultrasonic controllability, has a sonodynamic treatment effect and an oxygen supply effect, remarkably inhibits melanoma recurrence and remarkably promotes wound healing, and has a wide application prospect.

Fucoxanthin synthesis optimization method and system based on reinforcement learning

Resumen de: CN121215064A

The invention relates to the technical field of biological environment engineering, and provides a fucoxanthin synthesis optimization method and system based on reinforcement learning, and the method comprises the following steps: a real-time data acquisition system; constructing a state space; a deep reinforcement learning decision network; optimizing a dynamic strategy; and strategy verification is linked with the process. Through a light quality-stimulant collaborative reinforcement learning regulation strategy, the static operation limitation of a traditional process is broken through, the photosynthetic physiological state of microalgae is perceived in real time, the light environment and chemical signals are dynamically optimized, the fucoxanthin synthesis efficiency is remarkably improved, and a multi-omics closed-loop verification mechanism is combined, so that the fucoxanthin synthesis efficiency is improved. The molecular cascade effect of a light signal driving pigment synthesis pathway is illuminated, and a precise target spot is provided for metabolic engineering transformation.

Composite material and method for accelerating diatom sedimentation

Resumen de: CN121203818A

The invention relates to the field of microalgae sedimentation, in particular to a composite material for accelerating diatom sedimentation and a method thereof. The composite material comprises chitosan and clay, wherein the mass ratio of the chitosan to the clay is (1: 5)-(1: 15). The sedimentation method comprises the following steps: adding the composite material into diatom liquid, culturing for a certain time, and collecting the diatom. By implementing the scheme, the recovery rate of the diatom is improved.

Blue-green algae collecting device based on magnetic carrier and collecting method of blue-green algae collecting device

Resumen de: CN121203807A

The invention discloses a blue-green algae collecting device based on a magnetic carrier and a collecting method of the blue-green algae collecting device, and belongs to the technical field of blue-green algae treatment. The device comprises a liquid storage unit, a magnetic separation unit and a collection unit, the magnetic separation unit is matched with the liquid storage unit, the magnetic separation unit generates a directional magnetic field and acts on mixed liquid in the liquid storage unit, so that magnetic carriers combined with blue-green algae in the mixed liquid are gathered in the acting direction of magnetic field force, and the blue-green algae-magnetic carrier compound is formed. The magnetic carrier is prepared, and polydopamine (PDA) is rich in active groups, so that the affinity and binding force to cyanobacteria cells are enhanced; meanwhile, a buffer solution is used for accurately regulating and controlling pH, the optimal environment for carrier synthesis and blue-green algae combination is guaranteed, and compared with an unmodified carrier, the blue-green algae capture rate is remarkably increased.

Concrete-microalgae co-production system for carbon dioxide curing

Resumen de: CN121203785A

The invention belongs to the technical field of waste utilization devices, and particularly relates to a concrete-microalgae co-production system for carbon dioxide curing. The co-production system comprises a carbon dioxide trapping device, a microalgae culture device and calcining equipment; the microalgae culture device comprises a culture box, the bottom of the culture box is provided with an air inlet, a slag discharge port and an oil discharge port, and the top of the culture box is provided with an air outlet; a gas outlet of the carbon dioxide trapping device is communicated with a gas inlet of the incubator, and a slag discharging opening of the incubator is communicated with a feeding opening of the calcining equipment. According to the co-production system, the carbon dioxide trapping device, the microalgae culture device and the calcining equipment are connected for use, industrial waste gas is treated by the carbon dioxide trapping device, then carbon dioxide is introduced into the microalgae culture device, the carbon dioxide is efficiently fixed through photosynthesis of microalgae, and algae oil (biofuel) and algae residues are synchronously produced; and the algae residues are reused for cement clinker firing, so that a closed-loop industrial chain of carbon capture-biomass energy-building material regeneration is realized.

Method for improving orientated conversion of perigord truffle fatty acid into EPA and application of method

Resumen de: CN121204175A

The invention relates to the technical field of bioengineering and food engineering, in particular to a method for improving directional conversion of perigord truffle fatty acid into EPA and application of the perigord truffle fatty acid into the EPA. According to the system, a natural enzyme system and active ingredients in a nannochloropsis oculata lysate are fully utilized as biological catalytic components, and the physical strengthening effect of multi-frequency ultrasound is combined; under mild conditions, the unsaturated efficiency of fatty acid and the generation rate of EPA in a reaction system are remarkably improved. According to the method, perigord truffle is subjected to ethanol extraction, lipid components of perigord truffle are fully released, and the perigord truffle and a microalgae lysate have a synergistic effect, so that a composite reaction system with biological catalysis and physical promotion functions is constructed. The method is simple and controllable in process, has the advantages of being short in reaction time, low in energy consumption, environmentally friendly and the like, and meanwhile achieves the dual purposes of high-value utilization of perigord truffle resources and sustainable production of EPA. According to the method, an innovative solution is provided for high-value utilization of perigord truffle resources.

ENHANCED TRIACYLGLYCEROL PRODUCTIVITY AND EXTRACTABILITY IN AN ENGINEERED MICROALGA

Resumen de: US2025388850A1

The present invention relates to an engineered unicellular Stramenopile microalga comprising a loss of function of the homologous Seipin gene, an in vitro method of producing triacylglycerols (TAG), and uses thereof.

ALGAE CULTIVATION AND HARVESTING FROM CARRIERS

Resumen de: US2025388844A1

Microalgae are grown in a biofilm on carriers. The carriers may have surfaces with a small angle to the vertical, optionally forming a cone. A surface of the carrier may be flexible and optionally include a porous material. Algae are harvested from the carriers using a water jet, which may provide a substantially solid stream of water. A nozzle for producing the water jet may spin while being moved laterally over a carrier bed. The water jet may dislodge algae from a surface of the carriers in the form of large agglomerates or blobs. The dislodged algae may have a high concentration of solids or readily settle. The algae may be collected from a floor below the carriers, optionally with a moving collection device. A moving harvesting device may treat a portion of a carrier bed such that harvesting of the entire bed is distributed over time.

ANIMAL PROTEINS IN CYANOBACTERIA

Resumen de: WO2024170959A2

In some embodiments, the gene is integrated into the genome of the cyanobacteria. In some of these embodiments, the gene is integrated into an NS1 site of the cell. The sequence encoding an animal protein is optimized for expression in the cyanobacteria. In some embodiments, the animal protein is a muscle protein. In some of these embodiments, the muscle protein is a myosin subunit, myoglobin, or alpha-actin. In other embodiments, the animal protein is a subunit of a complex. In some of these embodiments, the complex is a myosin complex. The production of proteins by modified cells may be performed in multiple different cells, in some embodiments, the cyanobacteria cell is S. elongatus is PCC7942 or UTEX2973 or PCC7002, or Synechocystis sp. PCC6803. In some embodiments, multiple genes are incorporated into a cell. In some embodiments, each gene comprises a myosin complex subunit. The myosin complex subunits are MLC1, MLC2, and MYH2.

Open shallow water microalgae adherent culture device

Resumen de: CN223705560U

The utility model relates to the technical field of algae culture devices, in particular to an open shallow-water microalgae adherent culture device which comprises a transverse rectangular supporting frame, a plurality of culture substrates are sequentially and flatly laid on the supporting frame from top to bottom at equal intervals, and the section of each culture substrate is in a groove shape. One end of the culture substrate is provided with an integrated blocking plate, and the other end is open and hermetically connected with a funnel; the funnel is embedded into one side of the blocking plate of the adjacent culture substrate; a plurality of incandescent lamps are arranged between every two adjacent culture substrates in the transverse direction at equal intervals, and the incandescent lamps are fixedly arranged on the supporting frame in the longitudinal direction. The diatom growth is promoted through natural light and an incandescent lamp, and a thin culture solution is formed on the bottom surface of the culture substrate, so that the diatom can statically grow on the bottom surface of the culture substrate and finally form a biological membrane with a certain thickness, and the biological membrane can be directly observed and collected.

Fishery breeding tail water treatment and nitrogen and phosphorus resource utilization algae culture device

Resumen de: CN223705378U

The utility model belongs to the technical field of fishpond breeding tail water treatment, and particularly relates to a fishpond breeding tail water treatment and nitrogen and phosphorus resource utilization algae culture device. The algae culture device for fishery breeding tail water treatment and nitrogen and phosphorus resource utilization comprises a front-end biological treatment unit, a nitrogen and phosphorus resource utilization algae culture unit, an effluent oxygenation unit and a device chamber, the front-end biological treatment unit comprises a first-echelon biological treatment device and a second-echelon biological treatment device, the first-echelon biological treatment device, the second-echelon biological treatment device and the nitrogen and phosphorus resource utilization algae culture unit are sequentially connected, and the nitrogen and phosphorus resource utilization algae culture unit is provided with an LED lighting system and a stirring device. The effluent oxygenation unit is connected with the nitrogen and phosphorus resource utilization algae culture unit and is provided with a stepped oxygenation device. According to the device, the carbon, nitrogen and phosphorus treatment of the fishpond culture tail water is realized, and the effluent rich in microalgae flows back into the fishpond, so that the culture tail water is recycled, and the feed feeding is reduced. In addition, the equipment also has the advantages of high integration level, small

Long-term operation and resourceful treatment method of phycomycete

Resumen de: CN121158966A

The invention belongs to the technical field of phycomycete sewage recycling, and particularly relates to a phycomycete symbiotic system long-term operation and resourceful treatment method which comprises the following steps: constructing a phycomycete symbiotic system containing microalgae and activated sludge; the phycomycete symbiotic system is placed in an optical sequencing batch reactor to operate, the chitosan-diatomite composite material is added in the operation process, and the chitosan-diatomite composite material is added after each time of drainage; the method comprises the following steps: preparing a phycomycete suspension, carrying out vacuum freeze drying on the phycomycete suspension to obtain freeze-dried phycomycete mud, grinding the phycomycete mud into powder, and extracting lipids in the powder. The method provided by the invention can stably operate for a long time, not only improves the removal effect of pollutants, but also remarkably enhances the flocculation performance and lipid productivity of a phycomycete system, has the characteristics of pollutant removal and efficient recycling of resource products, and has wide application prospects of sewage resource utilization and biological energy development.

Method for verifying function of Cre in oil-producing microalgae and application of Cre in enhancing biosynthesis of eicosapentaenoic acid

Resumen de: CN121160751A

The invention provides a method for verifying functions of Cre in oil-producing microalgae and application of the method in enhancing biosynthesis of eicosapentaenoic acid, and belongs to the technical field of genetic modification. According to the invention, functional verification of Cre in oil-producing microalgae is completed by a method of inserting an intron from an endogenous Phatr3J51169 gene of phaeodactylum tricornutum into a Cre gene, that is, a selection marker located between two loxP sequences can be removed, and a free plasmid transformation method more suitable for Cre removal is further developed. Based on a Cre/loxP system, the expression of EPA synthetic pathway genes in the oil-producing microalgae is enhanced to obtain an engineering algal strain with high yield of EPA, and compared with a wild type, the relative content of EPA can be increased by 24.7%.

Light-wind-heat coupling enhanced hot spring thermophilic cyanobacteria culture photobioreactor

Resumen de: CN121160439A

The invention discloses a light-wind-heat coupling enhanced hot spring cyanobacteria culture photobioreactor. The photobioreactor comprises a reactor main body, a light source system, a floating type supply device, an attachment device, a control system and an energy supply system, wherein the reactor main body is connected with the energy supply system, and energy supply to the reactor main body is completed by utilizing light energy and wind energy; a floating type supply device is arranged at the bottom of the reactor main body and is used for providing sufficient CO2 and other nutrient substances for the thermophilic cyanobacteria; the thermal insulation cylinder is arranged in the reactor main body, so that heat dissipation in the bioreactor is remarkably reduced; an adhesion system is arranged in the reactor, so that the adhesion habitat environment of the thermophilic cyanobacteria in the hot spring is reduced, and later recovery is facilitated. According to the invention, environmental conditions required by growth and reproduction of thermophilic cyanobacteria in the hot spring can be automatically controlled in a low-carbon clean state, and a reliable scheme is provided for ectopic large-scale culture of thermophilic microorganisms.

Chlamydomonas reinhardtii metabolic enzyme protein nuclear localization method based on BCCP fusion targeting

Resumen de: CN121160750A

The invention discloses a BCCP fusion targeting-based chlamydomonas reinhardtii metabolic enzyme protein nuclear localization method, which comprises the following steps: carrying out fusion expression on acetyl coenzyme A carboxylase (ACC) biotin carboxyl carrier protein (BCCP) subunit and target protein, and realizing specific enrichment of fusion protein on the periphery of a protein nucleus by utilizing the natural protein nucleus targeting characteristic of BCCP. The invention provides a novel method for constructing a chlamydomonas reinhardtii engineering strain capable of efficiently utilizing inorganic carbon; the method has important application value in the fields of microalgae carbon capture, biofuel production, high-added-value compound synthesis and the like.

Method for promoting microalgae growth by using pharmaceutical product

Resumen de: CN121160592A

The invention belongs to the technical field of microalgae biology and culture, and particularly relates to a method for promoting microalgae growth by using a pharmaceutical product, which comprises the following steps: activating microalgae on a solid flat plate, inoculating the activated microalgae into a liquid culture medium, adding the pharmaceutical product at the initial stage of microalgae growth, placing in a constant-temperature shaking table, and carrying out illumination culture. According to the method, different types of pharmaceutical products with different concentrations are added into the microalgae, the influence of the addition of the different types of pharmaceutical products with different concentrations on the growth promotion of the microalgae is analyzed, the biomass of the chlorella can be rapidly increased, and the method has important significance on the large-scale production of the microalgae.

Aluminum electrolysis flue gas treatment and recovery method based on microalgae staged culture

Resumen de: CN121155338A

The invention provides an aluminum electrolysis flue gas treatment and recovery method based on microalgae staged culture, and belongs to the field of biological purification and recycling of industrial flue gas. The method comprises the following steps: pretreating the aluminum electrolysis flue gas to obtain purified flue gas; introducing the purified flue gas into a photobioreactor inoculated with fluorine-resistant microalgae, and carrying out I-stage tolerance period culture to obtain an algae solution; transferring the algae liquid into a photobioreactor, adding CaCl2 into the algae liquid and limiting the supply of a nitrogen source, and introducing purified flue gas into a second photobioreactor to carry out II-stage accumulation period culture, so as to obtain algae slurry; carrying out solid-liquid separation on the algae slurry to obtain algae mud and algae-containing filtrate; the algae mud is subjected to wall breaking treatment and supercritical extraction, and algae oil and algae residues are obtained. According to the application, the pollutant tolerance mechanism and the product synthesis path of the microalgae are triggered by regulating and controlling environmental factors, so that efficient purification of flue gas, fixation of fluorine in the form of biominerals, step-by-step extraction of high-value products from algae and cyclic utilization of algae residues can be synchronously realized.

UV A method for screening microalgae with thin cell walls using UV and a new chlorella strain isolated using the same

Resumen de: KR20250176100A

본 발명은 UV를 이용한 세포벽이 얇은 미세조류 선별방법 및 이를 이용하여 분리한 새로운 클로렐라 균주에 관한 것이다. 본 발명을 이용하면 세포벽이 얇은 미세조류 균주를 효과적으로 선별할 수 있고, 상기 선별방법으로 분리된 클로렐라 소로키니아나 UTEX2744 (Chlorella Sorokiniana UTEX2744)는 야생형과 비교하였을 때 생장속도, 지질 함량, 전분 함량과 바이오매스 함량에서 유의한 차이가 없으면서도 세포벽이 얇아 더 많은 바이오 생산물을 얻을 수 있고 유전자 조작이 쉬운 우수한 생물자원으로 사용할 수 있다.

A PLANKTONIC STRAIN OF THE UNICELLULAR GREEN MICROALGAE CHLORELLA VULGARIS KD BCF, INTENDED FOR BIOMASS PRODUCTION

Resumen de: WO2025257611A1

The invention relates to biotechnology and represents a new planktonic strain of the unicellular green microalgae Chlorella vulgaris, intended for biomass production. The planktonic strain of the unicellular green microalgae Chlorella vulgaris KD BCF, deposited in CCAP under number 211/144, is intended for biomass production. It meets the requirements for industrial cultivation and can be used for a wide range of applications: as a food product, for the production of beverages, as a raw material for the manufacture of pharmaceuticals and dietary supplements, as animal feed, as an algolisant for biological rehabilitation of water bodies, and for wastewater treatment. 1 example.

A METHOD OF PRODUCING SINGLE CELL PROTEIN FROM WHEY

Resumen de: WO2025256873A1

The present invention is generally concerned with the field of microbial fermentation of dairy or dairy alterative industry waste material and microbial protein production such as single cell protein (SCP). In particular the present invention is directed to microbial fermentation of dairy derived or dairy alternative derived whey for production of single cell proteins (SCP) or microbial biomass. More in particular, the present invention relates to a method of producing a single cell protein or biomass, comprising propagating a microbial culture in a large scale setting under suitable conditions and growth medium comprising dairy-derived whey to produce a single cell protein, where the microbial culture comprises microalgae, yeast and bacterial species (Figure 1). The present invention also relates to method of identifying a strain of microorganism, or mixture of strains of microorganisms, capable of efficiently using dairy-derived whey waste as a food source to produce biomass as a source of single cell protein. The present invention also relates to a propagated microbial culture or a composition and use of the culture in microbial fermentation. The present invention further provides a product or supplement comprising the composition of the present invention.

PROCESS FOR OPTIMIZING THE PRODUCTION OF MICROALGAL LIPIDS IN A PLANT USED FOR THE SIMULTANEOUS TREATMENT OF LIQUID AND GAS EFFLUENTS FROM ANAEROBIC DIGESTION, AND RELATED PLANT

Resumen de: EP4663740A1

A process and a plant for the production of microalgal lipids with simultaneous treatment of the liquid and gaseous effluents of anaerobic digestion are described; the process includes the steps of: collecting the digestate and separating the liquid fraction from the dry fraction; mixing, within a loading step, the liquid fraction with water and with the reagents necessary to obtain a culture medium suitable for microalgal growth; continuously feeding the culture medium to the mixing step; simultaneously extracting the effluent from the mixing step to the discharge step; activating a recirculation between the mixing step and the absorption step, maintained in the absence of light; simultaneously extracting the effluent as treated biogas; separating the microalgal biomass from the effluent, for subsequent extraction of the lipids; collecting the digestate and separating the liquid fraction from the dry fraction, wherein this step must be implemented upstream of the process.

A method of producing single cell protein from whey

Resumen de: GB2641793A

A method of producing single cell protein SCP or biomass comprises culturing microbial inoculum in a growth medium comprising dairy-derived whey. The method may comprise (i) inoculating growth medium comprising dairy-derived whey with a microbial inoculum to form an inoculated microbial mixture, (ii) incubating the inoculated microbial mixture at a first incubation temperature to generate a propagated starter culture, (iii) adding the starter culture to a growth medium comprising dairy-derived whey to form a fermentation mixture and incubating the fermentation mixture, and (iv) treating the fermentation mixture to produce a SCP. The fermentation mixture may be incubated at a second incubation temperature for at least 24 hrs. At least one of the strains in the microbial inoculum may be a microalga, a yeast, a fungi or a bacteria. The propagated starter culture preferably comprises a mixture of at least two strains of microalgae, at least two strains of fungi, at least two strains of yeast, and at least two strains of bacteria. A product or supplement comprising the biomass, a propagated microbial culture and use of the culture in microbial fermentation, and a method of identifying microorganisms capable of efficiently producing biomass using dairy-derived whey are also claimed.

Device for resourcefully treating aquaculture wastewater by using microalgae

Resumen de: CN223674443U

The utility model relates to the technical field of aquaculture wastewater, and discloses a microalgae resourceful treatment aquaculture wastewater device, which is used for aquaculture tail water treatment and comprises a treatment pond, support legs are arranged at the bottom of the treatment pond, a water inlet pipe for introducing tail water into the treatment pond is arranged in the treatment pond, and a water outlet pipe for introducing the tail water into the treatment pond is arranged in the treatment pond. A microalgae treatment mechanism for treating the aquaculture tail water is arranged in the treatment pond. By culturing the green algae terrace, pollutants such as nitrogen and phosphorus in the water body are consumed by utilizing the biological activity of the green algae terrace, so that the efficient nitrogen-reducing and phosphorus-removing effects are realized. The biological treatment method not only is environment-friendly, but also can effectively remove harmful substances in the wastewater. Meanwhile, the position of the mounting framework can be adjusted according to the water level in the treatment pond, and it is ensured that the green alga apron is always in the optimal treatment state. When the abundance of green alga cells reaches a peak value and enters a decline stage, the green alga terrace can be easily taken out by simply adjusting the fixing assembly, and subsequent treatment or replacement is facilitated.

Microalgae biological culture device and method

Resumen de: CN121136792A

The invention discloses a microalgae biological culture device and method. The culture device comprises a support and a funnel-shaped round cylinder arranged on the support, a pointed cone is arranged in the center of the funnel-shaped round cylinder, flow guide twisted lines are arranged on the pointed cone, a circulating water injection pipe is arranged on the side wall of the funnel-shaped round cylinder, and a culture water input pipe and a microalgae output pipe are arranged at the bottom of the funnel-shaped round cylinder. The culture method comprises the following steps: pumping culture water into a funnel-shaped cylinder through a culture water input pipe until a target volume is reached, inoculating microalgae, and circularly injecting the culture water into the top of the funnel-shaped cylinder from the bottom of the funnel-shaped cylinder through a circulating water injection pipe to form an inward vortex, so that the microalgae grow; and after the growth is finished, closing the circulating water injection pipe, naturally standing, gathering the microalgae concentrated solution to the central position of the funnel-shaped cylinder, and collecting from the microalgae output pipe. According to the invention, through the funnel-shaped cylinder, the circulating water injection pipe and the flow guide twisted lines, the algae-water mixed liquid forms an inward vortex in the funnel-shaped cylinder, no additional energy waste for stirring is needed, and the cost is redu

Method for improving dark fermentation level of microalgae astaxanthin by utilizing plant hormone pretreatment

Resumen de: CN121137109A

The invention discloses a method for improving the fermentation level of microalgae astaxanthin through plant hormone pretreatment, and belongs to the technical field of microalgae biology. According to the method, firstly, under the dark condition, two plant hormones including brassinolide and cytokinin are utilized to conduct pretreatment on a Chromococcus zoffii seed solution so as to increase the number of plastids, and then through shake-flask culture and fermentation tank fed-batch fermentation, it is proved that the strategy can promote accumulation of astaxanthin of Chromococcus zoffii under the nitrogen deficiency condition. The appropriate concentrations of the two plant hormones are both low, high light stress is not needed, the step operation is simple and convenient, and the production cost is reduced.

Center kitchen emission reduction system and emission reduction method

Resumen de: CN121135023A

The invention discloses a central kitchen emission reduction system which comprises a wastewater treatment module and a tail gas treatment module, the wastewater treatment module comprises an oil-water separator, a coagulation precipitator, a microalgae photoreactor and a cyclone separator which are connected in sequence, and a water inlet pipe of the oil-water separator is connected with a water outlet of a central kitchen; the tail gas treatment module comprises a condenser and a purification tower, a gas inlet of the condenser is connected with an exhaust port of the central kitchen, a second exhaust pipe of the purification tower is connected with a gas inlet of the microalgae photoreactor, and a water outlet of the microalgae photoreactor is connected with a third water inlet of the cyclone separator. Grease and particles in wastewater of a central kitchen are purified through an oil-water separator and a coagulation precipitator, VOCs and particles in waste gas of the central kitchen are removed through a condenser and a purification tower, and the wastewater and the waste gas are treated through a microalgae photoreactor at the same time. The emission reduction system can reduce the emission of carbon dioxide in the tail gas of the central kitchen while cooperatively utilizing nutritional ingredients in the domestic wastewater of the central kitchen.

Chlorella pyrenoidosa microalgae fertilizer for preventing and controlling pathogenic bacteria of farmland soil scab as well as preparation method and application of chlorella pyrenoidosa microalgae fertilizer

Resumen de: CN121136825A

The invention discloses a chlorella pyrenoidosa microalgae fertilizer for preventing and controlling pathogenic bacteria of farmland soil scab as well as a preparation method and application of the chlorella pyrenoidosa microalgae fertilizer, and belongs to the technical field of biology. The invention discloses a chlorella pyrenoidosa microalgae fertilizer for preventing and controlling pathogenic bacteria of farmland soil scab. The chlorella pyrenoidosa microalgae fertilizer is an alkaline microalgae fertilizer or an acidic microalgae fertilizer. Compared with the existing traditional chemical pesticide or biocontrol inoculant, the chlorella pyrenoidosa microalgae fertilizer disclosed by the invention has the advantages that the application amount of the chemical pesticide is greatly reduced, the abundance of pathogenic bacteria of scab in farmland soil is fundamentally blocked, controlled and inhibited, the diversity and functional activity of soil microorganisms are remarkably enhanced, and the application amount of the chemical pesticide is greatly reduced. The yield of rhizome crops such as potatoes is improved, and the disease prevention and control, soil improvement and crop productivity improvement efficiency of the rhizome crops are highly considered.

Method for preparing deuterated compound by microalgae fermentation

Resumen de: CN121137084A

The method comprises the following steps: (1) preparing a domestication culture medium by taking deuterium water as a solvent, carrying out illumination culture by taking CO2 or CO2 mixed gas as a carbon source, and domesticating the microalgae for multiple times to obtain deuterium water-resistant microalgae; (2) transferring the deuterium-water-resistant microalgae into a growth culture medium taking deuterium water as a solvent, and continuously carrying out illumination culture on the microalgae by taking CO2 or CO2 mixed gas as a carbon source, so as to obtain the deuterium-water-resistant microalgae with high carbohydrate content; (3) hydrolyzing the deuterium-water-resistant microalgae with high carbohydrate content by using an acid hydrolysis method to obtain a deuterium-water-resistant microalgae hydrolysate; and (4) putting the deuterium-resistant water microalgae hydrolysate into a fermentation container, and adding fermentation microorganisms to obtain the deuterated compound. According to the method disclosed by the invention, various deuterated compounds can be prepared by taking the microalgae biomass as a substrate and combining a fermentation process, so that the production cost is reduced, the sustainable development is promoted, the production process is simplified, and the production efficiency is improved.

Fucoidan composition and preparation method thereof for achieving an effective inhibition rate of 90% or more against human cancers through optimization of a formulation with multiple components

Resumen de: TW202547535A

The present invention relates to a Fucoidan composition and a preparation method thereof. The Fucoidan composition contains the following components in terms of weight percentage: Japanese Okinawa mozuku Fucoidan of 20 to 30%; Undaria pinnatifida Sporophyll Fucoidan of 25 to 35% from Tasmanian waters, Australia; Fucus vesiculosus Fucoidin of 25 to 35% from Tasmanian waters, Australia; microalgae Fucoidan of 5 to 10%; and microalgae Fucoxanthin of 1 to 5%. Through optimization of a formulation with multiple components, the present invention enables the prepared Fucoidan composition to achieve an effective inhibition rate of 90% or more against human colon cancer, human pancreatic cancer, human liver cancer, human prostate cancer, human breast cancer, or human lung cancer.

Method for preparing microalgae biological fertilizer from domestic sewage

Resumen de: CN121107889A

The invention relates to the technical field of sewage treatment, in particular to a method for preparing a microalgae biological fertilizer from domestic sewage. The method comprises the following steps: pretreating domestic sewage, removing suspended solids and large-particle impurities, converting organic nitrogen and phosphorus into inorganic nitrogen and phosphorus, and adding trace elements to obtain pretreated domestic sewage; mixing the pretreated domestic sewage with the activated sludge-microalgae mixture, and co-culturing to obtain a microalgae-microorganism culture solution; carrying out solid-liquid separation on the microalgae-microorganism culture solution to obtain a microalgae-microorganism mixture and water treated to reach the standard; the microalgae microorganisms and crop straw are mixed and fermented, and the microalgae biological fertilizer is obtained. According to the method, the microalgae and the activated sludge are co-cultured by taking the domestic sewage as a culture medium, the domestic sewage treatment is realized while water and nitrogen, phosphorus and potassium fertilizer resources are saved, and the microalgae biological fertilizer has the advantages of realizing resource recycling, improving the nutrient content of the biological fertilizer and the like.

Resource recovery method using microalgae-methanotrophic bacteria co-culture

Resumen de: CN121127574A

Disclosed herein is a method of producing a protein mixture comprising: (a) providing in a reaction vessel a co-culture comprising microalgae and methanotrophic bacteria obtained from waste activated sludge, and (b) operating the reaction vessel under conditions comprising: supplying a gas comprising CO2 and CH4 and not comprising oxygen to the co-culture, and illuminating the co-culture to produce a protein mixture.

Method for promoting microalgae growth by using pharmaceutical product

Resumen de: CN121109274A

The invention belongs to the technical field of microalgae biology and culture, and particularly relates to a method for promoting microalgae growth by using a pharmaceutical product, which comprises the following steps: activating microalgae on a solid flat plate, inoculating the activated microalgae into a liquid culture medium, adding the pharmaceutical product at the initial stage of microalgae growth, placing in a constant-temperature shaking table, and carrying out illumination culture. According to the method, different types of pharmaceutical products with different concentrations are added into the microalgae, the influence of the addition of the different types of pharmaceutical products with different concentrations on the growth promotion of the microalgae is analyzed, the biomass of the chlorella can be rapidly increased, and the method has important significance on the large-scale production of the microalgae.

Algicidal bacterium A3 and application thereof in inhibiting cyanobacterial bloom

Resumen de: CN121109245A

The invention discloses algicidal bacteria A3 and application thereof in inhibiting cyanobacterial bloom, and belongs to the technical field of biology. The algicidal bacterium A3 is identified as bacillus velezensis A3 and is preserved in the Guangdong Microbial Culture Collection Center, and the preservation number of the algicidal bacterium A3 is GDMCC No: 66947. The invention also provides an algicidal bacterial agent containing the algicidal bacteria A3, and also provides an application of the algicidal bacteria A3 or the algicidal bacterial agent in inhibiting cyanobacterial bloom. The algicidal bacterium A3 has a degradation effect on harmful blue-green algae, has an efficient blue-green algae inhibition effect, has biological safety on zebra fish in an algae killing concentration range, is suitable for preventing and treating algal bloom water bodies invading blue-green algae such as cushagi larakii and fine mold of fine mold, and has a wide application prospect.

Method for improving yield of microalgae SA-2 lipid

Resumen de: CN121109139A

The invention discloses a method for improving the yield of microalgae SA-2 lipid. The invention relates to the technical field of microalgae biology, in particular to a method for increasing the yield of microalgae SA-2 lipid. The method comprises the following steps: 1, inoculating microalgae SA-2 into a BBM culture medium; 2, then inoculating to a BBM culture medium containing NaHCO3; and 3, inoculating into an-NBBM culture medium, and culturing. The microalgae SA-2 disclosed by the invention is an extreme saline-alkali-resistant algae strain separated from rhizosphere soil of salix mongolica in saline-alkali soil in Andam City, Heilongjiang Province, China, the NaHCOO tolerance concentration of the microalgae SA-2 is up to 800mM (mmol/L), and the microalgae SA-2 is a typical saline-alkali adaptive algae strain. In the prior art, a lipid enhanced culture method for the algal strains with saline-alkaline adaptability is not reported yet.

Construction and application of electrostatic-driven oxygen-self-producing artificial biological hybrid system

Resumen de: CN121102499A

The invention provides construction and application of an electrostatic-driven artificial biological hybrid system capable of automatically producing oxygen. The artificial biological hybrid system is constructed by adsorbing a quinoline nitrile aggregation-induced emission photosensitizer on the surface of microalgae through electrostatic interaction. According to the invention, a quinoline nitrile aggregation-induced emission (AIE) photosensitizer is adsorbed on the surface of microalgae through electrostatic interaction for the first time, and an electrostatic-driven assembled artificial biological hybrid system (ABH) is constructed. According to the artificial biological hybrid system, microalgae is used as a self-produced oxygen bag, oxygen is continuously provided for the AIE photosensitizer, the ROS generation capacity of the photosensitizer is remarkably enhanced, and efficient killing of tumor cells is achieved. In addition, the artificial biological hybrid system can also realize long-time retention of a tumor part, and has an excellent in-vivo anti-tumor effect.

Microorganism for promoting growth of microalgae, microalga growth promoter, method for culturing microalgae, and method for screening microorganisms

Resumen de: CN121127573A

The present invention relates to a microorganism belonging to the genus Rhodococcus, the genus Xanthobacter, the genus Ancylobacter, the genus Shewanella, or the genus Aeromonas, and a method for producing the same, and more specifically, to a microorganism belonging to the genus Rhodococcus, the genus Xanthobacter, the genus Ancylobacter, the genus Shewanella, or the genus Aeromonas. The microorganism can be Rhodococcus hedyotidis (Rhodococcus cerevisiae) of the genus Rhodococcus, Xanthobacter flavus (Xanthobacter flavus) of the genus Xanthobacter, or Ancylobacter rudongensis of the genus Ancylobacter, and the microorganism can be a microorganism of the genus Ancylobacter, or a microorganism of the genus Ancylobacter, or a microorganism of the genus Ancylobacter, or a microorganism of the genus Ancylobacter and a microorganism of the genus Ancylobacter. The microorganism can be used for promoting the growth of blue algae, green algae, grey algae or euglena. The microorganism can be used to promote the growth of an organism belonging to the phylum cyanobacteria, unequal flagellum, euglenophyta, cryptophyta, rhodophyta, chlorophyta or chalaphyta.

Treatment method of cattle wastewater by microalgae Coelastrella

Resumen de: KR20250174249A

본 발명은 미세조류 코엘라스트렐라 KNUA068(Coelastrella sp. KNUA068, KCTC15891BP)의 폐수에서의 배양가능성을 확인하였고, 폐수 영양소 제거 효과, 카로티노이드 함량 증대 효과, 바이오디젤 생산성에 대해 확인하여, 미세조류 코엘라스트렐라 KNUA068(KCTC15891BP)이 폐수 처리, 카로티노이드 및 바이오디젤 생산에 이용될 수 있음을 확인하였다.

Algicidal bacterium TH41 and application thereof in inhibiting cyanobacterial bloom

Resumen de: CN121109246A

The invention discloses algicidal bacteria TH41 and application thereof in inhibiting cyanobacterial bloom, and belongs to the technical field of biology. The algicidal bacterium TH41 is identified as bacillus pumilus TH41 and is preserved in the Guangdong Microbial Culture Collection Center, and the preservation number of the algicidal bacterium TH41 is GDMCC No: 66948. The invention also provides an algicidal bacterial agent containing the algicidal bacteria TH41. The invention further provides application of the algicidal bacterium TH41 or the algicidal fungicide in inhibiting cyanobacterial bloom. The algicidal bacterium TH41 has a degradation effect on harmful blue-green algae, has an efficient blue-green algae inhibition effect, has biological safety on daphnia magna and zebra fish in an algae killing concentration range, is suitable for preventing and treating various blue-green algae such as microcystis aeruginosa, cuscuta larakii, pichia mold and anabaena pseudosciaena, and has a wide application prospect.

GENETIC TRAITS FOR IMPROVED PHOTOSYNTHESIS AND FOOD PRODUCTION AND PATHOGEN RESISTANCE IN PLANTS

Resumen de: WO2025255275A2

By engineering genetic traits associated with photosynthesis in plants, transgenic plants with increased crop yield can be generated, which will ultimately lead to increased food production in the field. To obtain beneficial genetic traits for enhanced photosynthesis, accelerated evolution is applied under salt stress in a cyanobacteria species, Synechococcus elongatus PCC 7942, by conditionally suppressing its mismatch repair system. Through high-throughput screening for biomass accumulation and sucrose production, it is discovered that specific amino acid changes in the pre-Dl protein of Photosystem II (PSII), encoded by the psbA genes, can improve efficiency of photosynthesis under salt stress, as well as pathogen resistance. Next, the same amino acid changes were made in Arabadopsis and proved that photosynthetic efficiency (measured via growth rate) is also increased in this model vascular plant.

CHLORELLA MICROALGAE

Resumen de: WO2024161108A1

Disclosed is a chlorophyll-deficient strain of Chlorella microalgae having a protein content of at least 50% w/w. Also disclosed is a method of producing a chlorophyll-deficient strain of Chlorella microalgae having a protein content of at least 50% w/w. Also disclosed is a composition comprising an algae biomass derived from the aforementioned chlorophyll-deficient strain of Chlorella microalgae or obtained by performing aforementioned method.

Circulating culture system for hatching grouper fries

Resumen de: CN223639958U

The utility model provides a circulating culture system for hatching grouper fries. The circulating culture system comprises a hatching culture barrel, a temperature control device, a physical filtering device, a protein separator, a microorganism filtering device and a PEM ozone device. The marine fish inland breeding device can achieve marine fish inland breeding, solves the pain point of outdoor grouper fry hatching, and accumulates organic waste generated by microalgae, live bait and fry in the water body in the grouper fry hatching process, ammonia nitrogen (NH3/NH4) generated by ammoniation and nitrite (NO2) generated by nitration when the grouper fry hatching operation is carried out indoors. Huge injury is caused to the fish fries.

Hulong hybrid spot seedling raising method capable of improving survival rate

Resumen de: CN121086887A

The invention belongs to the technical field of aquaculture, and particularly relates to a Hulong hybrid spot seedling raising method capable of improving the survival rate. The invention firstly provides a special microalgae solution combination for Hulong hybrid spots, different microalgae solutions are specifically mixed, and microalgae is rich in nutritional ingredients such as protein, polyunsaturated fatty acid, vitamins and minerals, so that the microalgae solution combination can be used as a high-quality feed, the growth performance of the Hulong hybrid spots is remarkably improved, and the yield of the Hulong hybrid spots is improved; the breeding environment can be improved to meet different breeding conditions; in addition, the invention further provides application of the microalgae solution combination in improving the survival rate of Hulong hybrid spot seedlings and/or improving the immune performance of Hulong hybrid spots, a nursery pond is disinfected by using a disinfectant containing a moringa oleifera extract and lactobacillus plantarum, and the microalgae solution combination is inoculated at different culture stages, so that the survival rate of the Hulong hybrid spot seedlings is increased, and the immune performance of the Hulong hybrid spots is improved. The survival rate and the immunity of the Hulong hybrid spotted fish are improved.

Microbubble culture microalgae reactor and coal-fired flue gas treatment system and method

Resumen de: CN121086866A

The invention discloses a microbubble culture microalgae reactor and a coal-fired flue gas treatment system and method. The microbubble culture microalgae reactor comprises a reaction tank body, an air inlet mechanism, a stirring mechanism and a catalysis mechanism, the air inlet mechanism is connected with the reaction tank body to feed air into the reaction tank body, and the stirring mechanism is connected with the reaction tank body to stir a culture solution in the reaction tank body; the catalysis mechanism is arranged in the reaction tank body so as to widen the light absorption range of the microalgae. According to the device, the gas-liquid contact area can be increased, carbon dioxide and the microalgae species culture solution can be in full contact, the reaction efficiency is improved, the production efficiency per unit area is high, and pure species high-density culture can be realized.

Flue gas absorption microalgae culture device

Resumen de: CN121086870A

The invention discloses a flue gas absorption microalgae culture device, which comprises a culture system, the culture system comprises a culture room, the culture room comprises: a plurality of groups of carriers uniformly arranged in the culture room and used for carrying microalgae; a plurality of groups of liquid storage tanks are uniformly arranged at the bottom in the culture room, are used for providing a culture medium solution for the microalgae, and are uniformly distributed below the plurality of groups of carriers; the driving mechanism is located on one side of the culture room and used for pushing the liquid storage tank to reciprocate left and right; the liquid storage tank is arranged in the culture room, the opening is formed in one side of the liquid storage tank in the culture room, a side door is arranged in the opening, and a fixing mechanism is arranged between the side door and the opening. Nutrient substances are transferred by utilizing the principle of capillary action, a carrier is cultured in a vertical space, and a fixed culture medium which is relatively low in water content and is sufficiently wet is provided for microalgae cells to provide nutrition; a double-sided light source is combined with a technology for recycling carbon dioxide in flue gas and a microalgae culture technology, so that energy conservation and emission reduction are facilitated.

Method for preparing concrete super-hydrophobic surface through microorganisms

Resumen de: CN121085658A

The invention belongs to the technical field of preparation of concrete through microorganisms, and particularly relates to a method for preparing a concrete super-hydrophobic surface through microorganisms. The invention provides a method for preparing a concrete super-hydrophobic surface by microorganisms, which comprises the following steps: smearing a cyanobacteria culture solution on the surface of concrete, and mixing to obtain cyanobacteria concrete; and the cyanobacteria concrete surface is subjected to smoothing treatment and mineralization treatment, and the concrete super-hydrophobic surface is obtained. The cyanobacteria disclosed by the invention are wide in distribution, easy to culture and extremely low in cost. The concrete is in contact with cyanobacteria, the cyanobacteria secretes a large amount of acid compounds, cement in the concrete is decomposed, the content of calcification compounds in the concrete is increased, a mineralization layer is conveniently formed on the surface of the concrete, and the hydrophobic effect is guaranteed. Meanwhile, the concrete surface is smoothed, so that the concrete surface is smooth, and the hydrophobic effect of the concrete is improved. And through mineralization treatment, drying of the surface of the concrete is accelerated, and a super-hydrophobic structure is formed.

Cathepsin B-reduction double-response type biological self-degradation cationic lipid as well as preparation and application of lipid nanoparticles of cathepsin B-reduction double-response type biological self-degradation cationic lipid

Resumen de: CN121085994A

The invention discloses cathepsin B-reduction dual-response type biological self-degradation cationic lipid and preparation and application of lipid nanoparticles thereof, belongs to the technical field of new auxiliary materials and new dosage forms of pharmaceutical preparations, and relates to a preparation method of cathepsin B and reduction dual-response type self-degradation cationic lipid and construction of siRNA lipid nanoparticles of the cathepsin B and reduction dual-response type self-degradation cationic lipid. The invention discloses colonizable inulin-spirulina composite gel for colon targeted delivery and application of the colonizable inulin-spirulina composite gel in nucleic acid drug delivery. According to the invention, a colon-specific modular hydrogel platform is designed by integrating a microalgae biotechnology and a nano-drug, and a new strategy and choice are provided for solving the toxic and side effects of lipid nanoparticles and oral delivery of RNA (Ribonucleic Acid).

Blue-green algae propagation method

Resumen de: CN121086941A

The invention discloses a blue-green algae propagation method, and relates to the technical field of natural biological soil crust. A porous material which is stable in structure, high in adsorbability and excellent in water-retaining property is used as a core carrier to construct a blue-green algae-carrier synergistic growth system, and system optimization of links such as blue-green algae population attachment propagation, environment control culture and drying treatment is combined, so that efficient attachment, uniform propagation and granulation preparation of blue-green algae are realized on the surface and in pores of the blue-green algae; therefore, the cyanobacteria-based particle product which can be dried, transported, spread and stored is obtained, a three-in-one engineering conversion path of propagation expansion, fixation and application is opened, and the technical requirements of large-scale artificial crust construction in the arid region are met.

Fish feed composition and production method thereof

Resumen de: CN121058813A

A fish feed composition for supplementing the diet of fish comprises a microalgae biomass produced using food waste leachate and harvested by flocculation, and wherein the fish feed composition promotes the growth and immunity of fish.

Chlorella QDHP-04 and application thereof

Resumen de: CN121064963A

The invention relates to the technical field of microalgae biology, and particularly discloses chlorella QDHP-04 and application thereof. The invention relates to chlorella QDHP-04, which is named as Chlorellasp.QDHP-04, and is preserved in the China Center for Type Culture Collection on March 9, 2023, the preservation number is CCTCC NO: M2023272, and the address is Wuhan University, Wuhan, China. The chlorella QDHP-04 disclosed by the invention can be used for preparing a biocontrol agent, and can be used for effectively inhibiting wheat sharp eyespot, promoting the growth and development of wheat and remarkably increasing the yield and quality of wheat planting.

Method for increasing fucoxanthine accumulation amount by using microcystis subjected to depolymerization treatment to feed palmarthria formosana

Resumen de: CN121064964A

The invention belongs to the technical field of biology, and particularly relates to a method for increasing the fucoxanthine accumulation amount by using microcystis subjected to depolymerization treatment to feed palmarthria formosana. According to the method, microcystis subjected to depolymerization treatment are added in the culture process of the palmitothecium for heterotrophic culture, meanwhile, continuous inflation is conducted, the microcystis subjected to depolymerization treatment are swallowed by the palmitothecium, and the higher fucoxanthine accumulation amount in the palmitothecium is obtained by means of the culture mode. The experiment proves that after the microcystis is subjected to pretreatment and depolymerization, the removal efficiency of the microcystis is higher by the brown algae, the limitation of treatment of harmful cyanobacteria and ingestion of protozoa is made up, and meanwhile, an integrated solution is provided for biological treatment of cyanobacterial bloom and resource utilization of the microalgae; meanwhile, a new way is provided for obtaining fucoxanthine with higher accumulation amount.

Method for treating micro-plastic wastewater

Resumen de: CN121063719A

The invention discloses a micro-plastic wastewater treatment method, and relates to the technical field of wastewater treatment.The micro-plastic wastewater treatment method comprises the steps that micro-plastic wastewater is subjected to aging treatment, and then micro-plastic wastewater is treated with microalgae granular sludge; the preparation method of the microalgae granular sludge comprises the following steps: adding an algae solution and a sodium alginate solution into dewatered sludge, then dropwise adding a calcium chloride solution, preparing granular sludge after the reaction is finished, and then circularly operating according to the sequence of water feeding, anaerobic stirring, aeration, sedimentation, drainage and idling in sequence to prepare the microalgae granular sludge. By preparing the microalgae granular sludge and constructing a bacteria-algae symbiotic system, extracellular polymeric substances are synergistically and adaptively generated in the wastewater with high-concentration polypropylene micro-plastic concentration, the hydrophobicity of the micro-plastic promotes aggregation of the microalgae granular sludge and the bacteria-algae symbiotic system, and the purification capacity is improved.

Rice soil improver and method for improving gleying rice soil

Resumen de: CN121063997A

The invention relates to the technical field of soil improvement, and particularly discloses a rice soil improver and a method for improving gleying rice soil. The rice soil improver provided by the invention comprises a component A and a component B, the component A is an organic-inorganic compound and comprises the following raw materials in parts by weight: 100-200 parts of kitchen waste fermentation products, 1-5 parts of slow-release calcium peroxide and 5-10 parts of a microbial agent I; wherein the slow-release calcium peroxide is prepared from the following raw materials in parts by weight: 100 parts of calcium peroxide, 70 to 80 parts of sepiolite and 10 to 15 parts of binder; the component B is microalgae gel beads and comprises the following raw materials: a microbial agent II, algae species and 2-5wt% of a sodium alginate solution. The rice soil improver provided by the invention can significantly improve the hardening and long-term oxygen deficit problems of gleying rice field soil, increase the effective fertility of the soil, promote the improvement of rice root activity and nutrient absorption, and finally increase the rice yield.

Method for improving selenium tolerance of euglena gracilis and preparation method of selenium-rich microalgae

Resumen de: CN121065061A

The invention provides a method for improving selenium tolerance of euglena gracilis and a preparation method of selenium-rich microalgae, and belongs to the technical field of microalgae application. The invention provides a method for improving selenium tolerance of euglena gracilis. The method comprises the following steps: culturing euglena gracilis in a culture medium added with sodium selenite; the adding mode of the sodium selenite comprises the step of adding the sodium selenite once a day from the beginning of inoculating the euglena gracilis; or sodium selenite is added once after the euglena gracilis is cultured for 48 hours or two days; or, starting from inoculation of the euglena gracilis, after the euglena gracilis is cultured for 48 hours or 2 days, sodium selenite is added once a day; the addition amount of the sodium selenite in each time is 1-10 mg/L. The method can prolong the growth cycle of the euglena gracilis, improve the movement ability of the euglena gracilis, promote the accumulation of parastarch, improve the maximum photosynthetic rate of the euglena gracilis, promote the chlorophyll synthesis of the euglena gracilis and improve the catalase activity of the euglena gracilis, and is beneficial to improving the selenium tolerance of the euglena gracilis.

METHOD FOR CONVERTING CARBON SOURCE INTO ETHYLENE GLYCOL

Resumen de: US2025369023A1

A method for converting a carbon source into ethylene glycol includes: providing a plasmid, in which the plasmid includes gene sequences of SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5, and SEQ ID NO: 6; implanting the plasmid into cyanobacteria through an electroporation treatment, so that modified cyanobacteria are obtained; and providing the carbon source to the modified cyanobacteria, so that the modified cyanobacteria convert the carbon source into the ethylene glycol.

ALGAL BIOFILM HARVESTING METHOD CAPABLE OF REDUCING RELEASE OF PLANKTONIC MICROALGAE

Resumen de: US2025368946A1

An algal biofilm harvesting method capable of reducing release of planktonic microalgae includes the following steps: S1: constructing an algal biofilm treatment system; S2: calculating a cutting area; S3: harvesting microalgae biomass; and S4: cyclic harvesting. By constructing an algal biofilm treatment system, a surface of an algal biofilm can be regularly cut to harvest microalgae biomass, thereby keeping activity of the biofilm in a best state all the time. In addition, the harvested microalgae biomass can be used as a high-quality substrate for subsequent fermentation, which can achieve resource saving. Quality attainment of effluent from a sewage tank with planktonic microalgae as a suspended solid indicator can be achieved, the treated effluent can be prevented from deteriorating due to an increase of the planktonic microalgae, and a risk that the planktonic microalgae in the effluent of the algal biofilm affects a subsequent treatment process is reduced.

Chlamydomonas reinhardtii source organism iron steady state regulator and application thereof

Resumen de: CN121041408A

The invention discloses a chlamydomonas reinhardtii source organism iron steady state regulator and application thereof, and belongs to the technical field of biology. The chlamydomonas reinhardtii hydroxyproline-rich glycoprotein or the protein component thereof disclosed by the invention can activate low-oxygen inducible factor signal channels of intestinal tracts, livers and kidneys, and up-regulate the expression of iron absorption transporters such as a divalent metal ion carrier 1, duodenum cytochrome b, membrane iron transporters and ferrous oxidase in intestinal epithelial cells; according to the present invention, the liver hepcidin overexpression caused by inflammation can be inhibited, the generation of erythropoietin in the liver and the kidney can be promoted so as to stimulate the absorption of the body on the iron nutrient, and the compound can be used in the anemia improving health food and the anemia improving drug. The organism iron homeostasis regulator adopted by the invention is derived from microalgae food, so that compared with a conventional artificially synthesized organism iron homeostasis regulator drug, the organism iron homeostasis regulator has the advantage of no toxic or side effect.

Process for converting carbon source to ethylene glycol

Resumen de: CN121046471A

The invention discloses a method for converting a carbon source into ethylene glycol. The method comprises the following steps: providing a plastid, wherein the plastid comprises gene sequences of SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5 and SEQ ID NO: 6; implanting the plastid into blue-green bacteria by means of electroporation treatment to obtain modified blue-green bacteria; and providing the carbon source to the modified cyanobacteria, so that the modified cyanobacteria converts the carbon source into ethylene glycol, thereby producing chemicals with high economic value while treating the carbon-containing waste gas.

Pretreatment device for synchronously and intensively preparing biodiesel by utilizing microalgae to generate electricity

Resumen de: CN121046186A

The invention aims to provide a pretreatment device for synchronously and intensively preparing biodiesel by utilizing microalgae to generate electricity, and belongs to the field of biomass energy production. The invention belongs to a microbial electrochemical coupling system, and adopts a microbial fuel cell (MFC) and a microbial electrolytic cell (MEC) as main structures. Anode microorganisms in the microbial fuel cell MFC take microalgae as a substrate, generate electricity through metabolism, and synchronously transmit electric energy to the microbial electrolytic cell MEC through a series lead to serve as an external power supply of the microbial electrolytic cell MEC; during continuous operation, algae liquid is fed into the MEC under the rate control of the pump, the MEC realizes microalgae wall breaking pretreatment through electric fermentation, and grease extraction is enhanced. According to the invention, the dependence of the traditional MEC process on external energy is broken through, the self-production and self-use of the capacity of the device are realized, the manual requirement for replacing the anolyte can be effectively reduced, and the microalgae biodiesel preparation pretreatment under continuous operation is realized.

n2 co2 Carbon-free energy supply system for carbon neutrality with renewable energy from microalgae culture due to n2 and co2 inhalation in the atmosphere

Resumen de: KR20250167386A

본 발명은 미세조류가 배양되는 배양부 외부의 펌프 라인의 이젝터 벤투리 내부의 스크류 발전 ; 상기 배양부 외 부에 위치하여 펌프가 설치되고, 이 젝터 벤 투리 내부의 설치된 제1파이프 라인; 및 상기 제1파이프 라인이 적 어도 하나의 접목부를 포함하며, 상기 접목부는 상기 배양 부 외부에 위치하는 이산화탄소공급부와 연결되는 제2 파이프 라인; 을 포함하는 것을 특징으로 하는 미세조류 배 양 시스템에 관한 것이다.

Microalgae cultivation photoreactor using wavelength controller

Resumen de: KR20250167316A

본 발명은 상단에 개구를 포함하고 내부에 배양 수조의 설치 공간부를 갖는 메인바디, 상기 메인 바디 내에 소정 간격 이격되어 수용되는 배양 수조 및 상기 개구를 통해 배양 수조의 상부를 커버할 수 있는 수조 덮개를 포함하는 미세 조류 배양 장치로서, 메인 바디의 전원부로부터 전원을 공급받아, 미세 조류의 종류, 생육 상태 및 관심 있는 표적 물질에 맞추어 빛을 조사하도록 배치된 복수개의 LED 소자를 포함하는 LED 모듈을 구비하고, 상기 메인 바디의 중앙부에 위치하여 개폐 가능하도록 구성되며, 교체 가능한 형태의 LED 기판, 및 제어기를 포함하는 것을 특징으로 하는 미세 조류 배양 장치를 제공한다. 상기 제어기는 상기 LED 소자의 광도를 조절하는 제1 조절기, 상기 LED 소자의 광 조사 시간을 조절하는 제2 조절기, 및 상기 LED 소자의 광 조사 순서를 조절하는 제3 조절기를 포함한다. 본 발명의 미세 조류 배양을 위한 배양 장치는 특정 파장의 조사 시간을 자동적으로 조절함으로써 특정 물질의 최대 함량을 유도한 특정 미세 조류를 최대 밀도로 배양한 후, 높은 농도의 원하는 물질을 추출할 수 있도록 할 수 있다.

Production method of microalgae water-soluble fertilizer based on swine urine

Resumen de: CN121021241A

The invention discloses a production method of a microalgae water-soluble fertilizer based on swine urine. The production method comprises the following steps: S1, collecting swine urine; s2, primary treatment of swine urine; s3, carrying out mold removal and detoxification on the swine urine; s4, culturing the microalgae; s5, strengthening the microalgae; s6, collecting microalgae; s7, preparation of the water-soluble fertilizer: in the step S1, firstly filtering the pig urine by using a 100-150-mesh filter screen to remove feed residues or excrement particles, and in the step S2, firstly diluting the pig urine until the nitrogen content in the pig urine is 100-300mg/L, then carrying out catalytic ozonation on the pig urine, adding ferric oxide and activated carbon into the inner side of the pig urine according to a ratio of 2: 1, and uniformly stirring to obtain the water-soluble fertilizer. The ratio of the ferric oxide and the activated carbon to the swine urine is 1: 10, the microalgae water-soluble fertilizer with low heavy metal pollution is prepared by sufficiently treating the swine urine, then adjusting the microalgae and finally combining the swine urine with the microalgae, and the microalgae water-soluble fertilizer can be used in a farmland in a large area and is high in use efficiency.

Method for constructing Algammox system

Resumen de: CN121020826A

The invention discloses a method for constructing an Algammox system, and relates to a method for constructing a system. The invention aims to solve the problems that the existing anaerobic ammonium oxidation bacteria (AnAOB) are easily damaged by ROS (reactive oxygen species) induced by light irradiation and are greatly influenced by DO (dissolved oxygen). According to the invention, microalgae is innovatively introduced into a PNA technology, and an Algammox system is constructed. Dissolved oxygen is supplied in situ by utilizing microalgae through photosynthesis, so that the dependence on mechanical aeration is reduced; meanwhile, a biofilm carrier strategy is adopted, so that the inhibition of illumination on AnAOB is effectively shielded, and the biomass retention capacity is enhanced. The result shows that the total nitrogen removal rate of the developed Algammox system is as high as 97%. The invention belongs to the technical field of biological environmental protection and biological energy.

Microalgae culture intelligent sampling and online detection device and method

Resumen de: CN121022548A

The invention discloses an intelligent sampling and on-line detection device and method for microalgae culture, and relates to the technical field of biological culture on-line detection. The microalgae stock solution detection unit comprises a stock solution detection pool, two sides of the stock solution detection pool are respectively provided with a divergent light source and a spectrum detection sensor, and the microalgae stock solution detection unit is used for detecting microalgae pigment and cell concentration in the stock solution through spectrum inversion; the microalgae diluent detection unit comprises a diluent detection pool, and a plurality of diluent detection sensors are arranged in the diluent detection pool and used for detecting the pH value, the conductivity and the inorganic salt ion concentration in the diluent; and the automatic sampling and diluting unit comprises a PLC (Programmable Logic Controller) as well as a first peristaltic pump, a second peristaltic pump, a first electromagnetic valve, a second electromagnetic valve and a plurality of liquid level meters which are electrically connected with the PLC, and is used for controlling linkage operation of each component and completing stock solution sampling, solution changing, stock solution detection pool cleaning, stock solution diluting, solution discharging and diluent detection pool cleaning. According to the invention, effective detection of multiple parameters of the microalgae culture syst

Method for improving treatment of livestock and poultry breeding wastewater by phycomycete system through starch wastewater and application

Resumen de: CN121020835A

The invention discloses a method for improving livestock and poultry breeding wastewater treatment by a phycomycete system through starch wastewater and application, and belongs to the technical field of environmental engineering and biological recycling. The method comprises the following steps: (1) pretreating livestock and poultry breeding wastewater and starch wastewater to remove impurities; livestock and poultry breeding wastewater and starch wastewater are mixed according to a certain volume ratio to prepare mixed wastewater; (2) mixing chlorella sorojin and aspergillus oryzae in a logarithmic phase according to a certain quantity ratio, and inoculating to construct a microalgae-fungus co-culture system; and (3) putting the microalgae-fungus co-culture system into the mixed wastewater, treating under an illumination oscillation condition, and purifying the mixed wastewater. According to the method, the starch wastewater is adopted as a novel carbon source for replacing a traditional commercial carbon source, and a biological treatment mode of microalgae-fungus co-culture is combined, so that efficient purification of the livestock and poultry breeding wastewater is realized, meanwhile, biomass accumulation is promoted, resource utilization of wastes is realized, and dual targets of wastewater treatment and resource recovery are achieved.

Aerobic granular sludge based on functional flora-microalgae-pyrite composite system reinforced synergy and preparation method thereof

Resumen de: CN121020844A

The invention relates to the technical field of biological sewage treatment, and provides aerobic granular sludge based on functional flora-microalgae-pyrite composite system reinforced synergy and a preparation method of the aerobic granular sludge. The method is characterized by comprising the four steps of pyrite pretreatment, bacteria-algae synergistic domestication and inoculation, aerobic granular sludge induction formation and aerobic granular sludge maturation and stabilization. According to the invention, a'pyrite-functional flora-microalgae 'three-in-one system is constructed, so that the pyrite, the functional flora and the microalgae form a physicochemical-biochemical collaborative network. The aerobic granular sludge prepared by the functional flora-microalgae-pyrite composite system in a reinforced and synergistic manner not only has higher COD (Chemical Oxygen Demand), TN (Total Nitrogen) and TP (Total Phosphorus) removal efficiency and good impact resistance and load resistance when being used for deeply treating the mariculture tail water, but also can regularly collect the microalgae in the system as an aquatic feed additive, so that the conversion from pollutants to resources is realized.

Microalgae flocculating settling harvesting device

Resumen de: CN223607262U

The utility model discloses a microalgae flocculating settling harvesting device, and relates to the field of microalgae harvesting. A microalgae flocculating settling harvesting device comprises a settling pond and further comprises a conveying pipe fixedly inserted into a liquid inlet of the settling pond; the flocculating agent storage tank is placed on one side, close to the conveying pipe, of the sedimentation tank; the connecting pipe is fixedly inserted into the conveying pipe; according to the utility model, the flocculating agent is introduced by utilizing the negative pressure suction force generated by flowing of the microalgae solution in the conveying pipe, and the flocculating agent and the microalgae solution are mixed by virtue of the power of water flow, so that compared with the traditional mode of directly adding the flocculating agent into the sedimentation tank, the flocculating agent can be more quickly and uniformly dispersed in the microalgae solution, the mixing efficiency is obviously improved, and the energy consumption is reduced. The full proceeding of the flocculation reaction is promoted, the formation of a larger and denser flocculating constituent is facilitated, and the sedimentation effect of microalgae is improved.

Selective light-transmitting composite film photobioreactor

Resumen de: CN223607249U

The utility model discloses a selective light-transmitting composite membrane photobioreactor which comprises a selective light-transmitting composite membrane cylinder body, an algae liquid inlet, a nutrient solution inlet and an exhaust port are formed in the top end of the selective light-transmitting composite film barrel; an air vent and a liquid outlet are formed in the bottom end of the selective light-transmitting composite film barrel; the selective light-transmitting composite film barrel body is of a three-layer structure; the outer layer is a light-transmitting hardened film layer, the middle layer is an additive film layer, and the inner layer is a food-grade packaging film layer. According to the utility model, the wall thickness of the cylinder is reduced, the light transmittance is increased, and the material cost is reduced; according to the utility model, the selective light-transmitting composite film barrel is arranged; after being used, the non-damaged paper can be repeatedly used after being sterilized; flow of microalgae is guaranteed through air, no mechanical power exists in the whole culture environment, the pollution risk caused by microalgae death does not exist, and the cleaning and maintenance rate is low.

Culture medium for rapidly culturing chlorella

Resumen de: CN121022596A

The invention discloses a culture medium for rapidly culturing chlorella, and relates to the technical field of microalgae biology, the culture medium comprises the following components: a nitrogen source: urea, a phosphorus source: dipotassium phosphate, a magnesium source: magnesium sulfate heptahydrate, an organic carbon source: molasses, and composite probiotics: the composite probiotics are composed of bacillus subtilis and lactobacillus acidophilus according to a viable count ratio of 5: 1; and the mineral regulating agent is zeolite powder. The compound probiotics secrete antibacterial substances to cooperate with the adsorption effect of the zeolite powder, so that the risk of infectious microbe pollution is reduced, residues are decomposed, the culture solution is clear for a long time and free of peculiar smell, and the pH fluctuation is small.

Method for improving active oxygen content by utilizing bacteria-algae co-culture and treating coking wastewater

Resumen de: CN121020840A

The invention discloses a method for improving the content of active oxygen by utilizing bacterium-alga co-culture and treating coking wastewater, and relates to the field of methods for improving the content of active oxygen by utilizing bacterium-alga co-culture and treating coking wastewater. The invention aims to solve the technical problem of high cost caused by the need of an external carbon source in the process of removing nitrogen and phosphorus by adopting microalgae at present. The method comprises the following steps: domesticating residual sludge by adopting different pollutants, and then mixing with microalgae for culturing; the cultured algal-bacterial symbiotic system is used for removing specific pollutants in coking wastewater, and the content of active oxygen in the system is measured after treatment. According to the method, the algal-bacterial symbiotic system is combined with the coking wastewater treatment process, so that the treatment cost and time are greatly reduced while the adaptability and the treatment efficiency of microorganisms to toxic and harmful substances are improved. The method is used for increasing the content of active oxygen and treating coking wastewater.

Blue-green algae strain for producing phenylalanine and application of blue-green algae strain

Resumen de: CN121022664A

The invention provides a cyanobacteria strain for producing phenylalanine and application of the cyanobacteria strain, and belongs to the technical field of functional cyanobacteria. The invention provides a cyanobacteria strain for producing phenylalanine, which is a synechocystis sp. Strain UV120, and the preservation number is CGMCC (China General Microbiological Culture Collection Center) No.46456. The invention also provides a preparation method of the cyanobacteria strain for producing phenylalanine. According to the invention, two mutagenized blue algae strains are obtained by adopting ultraviolet mutagenesis, and the strain UV120 not only has a good growth characteristic under the condition of high-concentration L-phenylalanine or analogues thereof, but also has the characteristic of high yield of L-phenylalanine, so that a new means is provided for large-scale synthesis of phenylalanine.

Extracellular vesicles from microalgae, their biodistribution upon intranasal administration and uses thereof

Resumen de: CN121038801A

Compositions comprising microalgal extracellular vesicles (MEVs) formulated for intranasal delivery are provided whereby, after intranasal administration, the MEVs are transported by a specific route, via olfactory nerves to specific regions in the brain after intranasal administration, and through lateral olfactory beams (LOTs) to interconnected brain regions. The MEV is transported via neuronal axons. The MEV has the ability to traverse synapses including: (i) a synapse between an olfactory sensory neuron (OSN) and a monk cap/clustered neuron; (ii) synapses between monk cap/cluster neurons and local neurons in a plurality of brain regions colonized by a lateral olfactory beam (LOT); and (iii) synapses between neurons in the brain region colonized by LOT and neurons from the frontal cortex, hippocampus, thalamus and hypothalamus. The compositions contain extracellular vesicles (MEVs) from microalgae loaded with biologically active cargo for use in treating, detecting, diagnosing or monitoring a disease, disorder or condition of the brain or involving the brain, in particular to provide neuronal delivery of cargo. The compositions and methods have various applications as therapeutic and diagnostic agents for treating, diagnosing, and monitoring the brain or a disease, disorder, or condition involving the brain. The compositions are useful in methods and uses for the treatment of cancers involving the brain, and are useful, for example, for the delivery of therapeutic agents f

Method for comprehensively extracting eicosanoic acid containing EPA and ARA from phaeodactylum tricornutum and application of eicosanoic acid

Resumen de: CN121021291A

The invention provides a method for comprehensively extracting eicosanoic acid containing EPA and ARA from phaeodactylum tricornutum and application of eicosanoic acid, a complete process chain of algae culture, algae mud acquisition, rapid ASE extraction of microalgae oil, SPE enrichment and semi-preparative HPLC purification is established, the anti-inflammatory medium is definite in composition proportion, and the structure is identified through high performance liquid chromatography; existing literatures and patents do not disclose a combination of the algal strain capable of enriching the multiple anti-inflammatory media at the same time. The raw material of the phaeodactylum tricornutum is from marine diatom which can be cultured on a large scale, the risk of pesticide residue of terrestrial plants is avoided, an organic chlorine solvent is avoided in the production process, and the requirement of FDA/EFSA on natural marine source functional ingredients is met; the compound can be used for anti-inflammatory prescription medicines, postoperative inflammation relieving foods and relieving and repairing cosmetics at the same time, and the market application range is wide.

Intelligent treatment method for mariculture tail water

Resumen de: CN121030277A

The invention provides an intelligent treatment method for mariculture tail water, and belongs to the technical field of machine learning. By constructing a multi-mode tail water environment-evolution data set, comprehensive perception of a tail water visual image sequence, physicochemical index time sequence data and operation control parameters is realized, and dynamic evolution prediction of a tail water system is carried out based on a virtual environment generation model. Through the steady state identification and mode mining module, the stable operation cluster, the critical boundary and the abrupt change mode of the tail water system can be quantified, control-abrupt change response knowledge is extracted, and a structured basis is provided for optimization decision making. On the basis, a multi-target control optimization model is constructed, efficient regulation and control over the microalgae growth rate, the suspended particle sedimentation rate and the nutritive salt absorption efficiency are achieved, meanwhile, the potential mutation risk is avoided, and steady-state operation of the system is guaranteed. According to the method, intelligentization, precision and multi-objective optimization of the tail water treatment process can be achieved, and efficient and reliable technical support is provided for mariculture tail water ecological management.

COMPOSITIONS, METHODS OF USING SAME, AND KITS COMPRISING SAME

Resumen de: WO2025243087A2

The present disclosure relates to compositions, nutraceutical compositions, and dietary supplements that improve gut health, enhance energy, improve focus and energy, reduce cravings, improve stress management, improve overall health, promote healthy aging, replenish nutrients, support immune health, promote healthy skin, promote hair and nail growth, and enhance recovery after physical activity. The compositions comprise one or more of each of seaweeds, enzymes, and protein; two or more of each of adaptogens, botanicals, extracts, fibers, microalgae, micronutrients, minerals, vitamins, and whole fruit or vegetable powders; and three or more probiotics.

A METHOD FOR SUSTAINED HYDROQUINONE PRODUCTION

Resumen de: WO2025243318A1

The present disclosure provides a microbiological process for the production of hydroquinone from benzoquinone in a microalgal system. The method is particularly characterized by the extraction of the hydroquinone product at a specific points in the process followed by re- introduction of the benzoquinone substrate into the microalgal system. The said method of the 0 present disclosure allows sustained production of hydroquinone.

PROCESS FOR OBTAINING AN EXTRACT WITH A HIGH LUTEIN CONTENT FROM MICROALGAE, EXTRACT WITH A HIGH LUTEIN CONTENT, AND USE OF THE OBTAINED EXTRACT

Resumen de: WO2025241022A1

The present invention provides a process for obtaining an extract with a high lutein content from microalgae, comprising a microalgae cultivation process with high biomass and lutein production, as well as a process for extracting lutein and chlorophylls using green solvents. The microalgae belong to the genus Chlorella from Brazilian biodiversity, which produces metabolites comprising lutein and chlorophylls. The cultivation process for the microalgae of the genus Chlorella was optimized, and different carbon and nitrogen sources used in the culture medium were evaluated with respect to lutein production. The lutein extraction process employs solvents such as ethanol and glycerin, which are safe for cosmetic and nutraceutical applications. The obtained extract has a high lutein content and also contains chlorophylls and neoxanthin. Lutein assists in protecting the skin against photoinduced damage, and the extract with a high lutein content is suitable for use in cosmetic compositions, pharmaceutical compositions, and the food industry.

Method for promoting microalgae carbon sequestration by using polyethylene glycol passivated nitrogen-doped carbon dot conversion spectrum

Resumen de: CN121006355A

The invention relates to a microalgae photosynthetic carbon sequestration technology, and aims to provide a method for promoting microalgae carbon sequestration by a polyethylene glycol passivated nitrogen-doped carbon dot conversion spectrum. The method comprises the following steps: passivating the surfaces of nitrogen-doped carbon dots by using polyethylene glycol, and then directly adding the passivated nitrogen-doped carbon dots into a microalgae suspension, ultraviolet light with the wavelength of 280-390 nm in external light is converted into blue light with the wavelength of 400-500 nm by passivating the nitrogen-doped carbon dots so as to be directly utilized by microalgae, so that growth and carbon sequestration are promoted while the stress resistance of algae cells is improved. According to the method, damage to algae cells can be greatly reduced by converting an ultraviolet spectrum, and meanwhile, microalgae growth and carbon sequestration can be further promoted by converting ultraviolet light into blue light; the spectrum conversion effect is enhanced, the overall light energy utilization efficiency of microalgae carbon sequestration is improved, light inhibition is relieved, and the stress resistance of microalgae cells is improved, so that microalgae growth carbon sequestration is promoted, and the development of the microalgae carbon sequestration industry is promoted.

Method for promoting microalgae carbon sequestration by using transparent film carrying nitrogen-doped carbon dot coating

Resumen de: CN121006354A

The invention relates to a microalgae carbon sequestration technology, and aims to provide a method for promoting microalgae carbon sequestration by using a transparent film carrying a nitrogen-doped carbon dot coating. According to the method, a transparent film is arranged on the outer side of the photobioreactor in a surrounding manner, so that external light rays penetrate through the transparent film and then enter the photobioreactor; the nitrogen-doped carbon dot coating is carried on the surface of the transparent film, ultraviolet light of 280-390 nm in external light is converted into blue light of 400-500 nm through the coating, and growth and carbon sequestration are promoted while damage to algae cells is reduced. Damage to algae cells can be greatly reduced by converting ultraviolet rays, and meanwhile, the ultraviolet rays are converted into blue light to further promote microalgae growth and carbon sequestration. The light source improvement effect of the photobioreactor can be comprehensively improved, the entering blue light source is enhanced and more uniform, and spectral distribution is optimized; the method can be used for manufacturing the composite film in an industrial production scale and transforming the photobioreactor in batches, and is low in cost, simple to operate and suitable for popularization and application.

Application of basophilic microalgae transcription factor ChZF7 in regulation and control of salt tolerance of microalgae

Resumen de: CN121005766A

The invention discloses an application of a transcription factor ChZF7 of a basophilic microalgae Chlorella sp. BLD in regulation and control of salt tolerance of microalgae. According to the invention, the coding gene of the transcription factor ChZF7 is transferred into chlamydomonas reinhardtii by using a transgenic technology after intron insertion and codon optimization, so that transgenic chlamydomonas reinhardtii is obtained. The salt tolerance of the chlamydomonas reinhardtii with the over-expressed ChZF7 gene is remarkably improved, the accumulation of neutral fat and active oxygen under the stress of 225mM salt is less than that of the chlamydomonas reinhardtii in a control group, the content of penetrating substance proline is increased, in addition, the change of cell components in the chlamydomonas reinhardtii under the stress of salt can be weakened by the over-expressed ChZF7 gene, and the salt tolerance of the chlamydomonas reinhardtii is improved. The transcription factor ChZF7 and the gene coded by the transcription factor ChZF7 can regulate and control the salt tolerance of the chlamydomonas reinhardtii, a foundation is laid for genetic improvement and directed molecular breeding of the microalgae, the transcription factor ChZF7 plays an important role in improvement of the salt tolerance of the microalgae, reutilization of salinized water resources is facilitated, and the transcription factor ChZF7 and the gene coded by the transcription factor ChZF7 have

Preparation method of spirulina-fish oil nano-emulsion and application of spirulina-fish oil nano-emulsion in fish oil microcapsules

Nº publicación: CN121003297A 25/11/2025

Solicitante:

OCEAN UNIV OF CHINA
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Resumen de: CN121003297A

The invention discloses a preparation method of a spirulina-fish oil nano-emulsion and application of the spirulina-fish oil nano-emulsion in fish oil microcapsules, and belongs to the technical field of microalgae application, and the preparation method specifically comprises the following steps: adding spirulina powder into pure water, and magnetically stirring uniformly to obtain a spirulina suspension; dropwise adding fish oil into the spirulina turbid liquid, and pre-emulsifying by using a high-speed dispersion homogenizer during the period to prepare a spirulina fish oil crude emulsion; treating the crude spirulina fish oil emulsion by using a high-pressure micro-jet homogenizer to obtain the spirulina-fish oil nano-emulsion. And carrying out spray drying on the spirulina-fish oil nano-emulsion by using a spray drying technology to obtain the spirulina-fish oil microcapsule. The spirulina fish oil microcapsule prepared by the invention has relatively good oxidation stability and thermal stability, can well cover the fishy smell of the fish oil, is easy to transport and store, and is more easily accepted by consumers.