Microalgues: Cultiu i usos

COMPOSITION CONTAINING EXTRACELLULAR VESICLES DERIVED FROM MICROALGAE

Resumen de: WO2025142932A1

The purpose of the present invention is to provide a composition that contains extracellular vesicles derived from microalgae and has suppressed discoloration.　In one embodiment of the present invention, a composition containing (A) extracellular vesicles derived from microalgae, (B) a polyhydric alcohol, and (C) at least one chemical selected from the group consisting of organic acids, salts thereof, and nonionic surfactants, is prepared.

METHOD OF EFFICIENT CITRAMALATE PRODUCTION FROM BROWN MACROALGAE BIOMASS BY ENGINEERED VIBRIO SP. DHG

Resumen de: US2025215387A1

The present disclosure relates to efficient production of citramalate, which is a valuable industrial compound, from brown microalgae by using a transformed Vibrio sp. DHG strain. According to the present disclosure, it is possible to efficiently produce citramalate, which is used in various industrial fields, from brown microalgae-based raw materials by using a recombinant microorganism for producing citramalate. Therefore, the present disclosure not only introduces an innovative source for citramalate to advance the field, but also lays the foundation for extensive and efficient applications in bio-based industries.

STRUCTURE AND METHOD FOR PROMOTING MICROALGAE GROWTH

Resumen de: US2025212852A1

An artificial structure for promoting microalgae growth includes a 3D-printed structure formed by positioning a printing surface on a movable stage of a 3D bioprinter in contact with a bio-ink that includes a mixture of a pre-polymer material with one or more of cellulose-derived nanocrystals (CNC), and microalgae cells. By projecting modulated light onto the printing surface while moving the stage, the bio-ink is progressively polymerized to define layers of an artificial coral structure with microalgae cells disposed thereon, where the artificial coral structure is configured to scatter light within the structure.

COMPOSITION CONTAINING EXTRACELLULAR VESICLES DERIVED FROM MICROALGAE

Resumen de: WO2025142924A1

The purpose of the present invention is to provide a composition containing extracellular vesicles derived from microalgae. In one embodiment of the present invention, the composition contains (A) extracellular vesicles derived from microalgae, and, optionally, one or more chemicals selected from the group consisting of (B-1) to (B-3), where: (B-1) is one or more chemicals selected from the group consisting of primary alcohols and polyhydric alcohols, (B-2) is one or more chemicals selected from the group consisting of organic acids and salts thereof, and (B-3) is a chelating agent.

ANTI-INFLAMMATORY OR AGING-SUPPRESSING COMPOSITION CONTAINING EXTRACELLULAR VESICLES DERIVED FROM PLANT, MUSHROOM OR MICROALGA

Resumen de: WO2025135193A1

This anti-inflammatory or aging-suppressing composition contains extracellular vesicles derived from a plant of the family Apiaceae, Lamiaceae, Theaceae, Selaginellaceae, Brassicaceae, Asteraceae, Amaranthaceae, Amaryllidaceae, Fabaceae, Cucurbitaceae, Zingiberaceae, Polygonaceae, Dioscoraceae, Vitaceae, Rosaceae, Solanaceae, Ericaceae, Lythraceae or Rutaceae, a mushroom or a microalga.

SYSTEMS AND METHODS FOR CYANOBACTERIA INDOOR AIR BIOFILTRATION TO REDUCE AIR HANDLING ENERGY CONSUMPTION

Resumen de: US2025207079A1

Systems and methods for cyanobacteria indoor air biofiltration to reduce air handling energy consumption are disclosed. A system may include: a heating, ventilation, and air conditioning (HVAC) system comprising an air valve that controls a flow of conditioned, untreated air from an enclosed area; and a biofiltration device comprising: a controller that interfaces with the air valve and controls the air valve to open or close; an air inlet that receives the untreated air from the air valve when the air valve is in an open position; a bioreactor comprising a bio-organism; an air bubble mixing system that receives the untreated air and diffuses the untreated air into the bioreactor, wherein the bio-organism is configured to consume CO2 via photosynthesis and to release treated air; and an air outlet that receives the treated air from the bioreactor and expels the treated air to enclosed area.

NOVEL DIETARY SUPPLEMENT COMPOSITION AND USES THEREOF

Resumen de: WO2025133482A1

The invention relates to a novel oral or sublingual composition comprising an extract of the microalga Tetradesmus sp. and/or an extract of the microalga Pavlova sp. The composition is used as a medicine, in particular for reducing intestinal hyperpermeability, and/or reinforcing the intestinal barrier, and/or improving intestinal transit, and/or modulating intestinal microbiota and/or improving gastrointestinal disorders, and/or maintaining and/or increasing immune defences and/or reducing stress. The composition improves well-being, sleep and cognitive abilities, in particular in humans.

MICROALGA CULTURING APPARATUS TO BE MOUNTED ON WALL SURFACE OF STRUCTURE, ENABLING EASY DETACHMENT OF MICROALGA

Resumen de: WO2025127340A1

The present invention relates to a microalga culturing apparatus to be mounted on a wall surface of a structure and to a microalga culturing apparatus which enables easy detachment of a microalga attached to the inner surface of a photosynthesis reactor, allows the cultured microalga to be easily harvested, and further enables increased usability.

CELL ADHESION DEVICE FOR CULTURING MICROALGAE

Resumen de: WO2025123156A1

The present invention relates to an adhesion device (1) for culturing microalgae that increases the density of microalgae cultures and their biomass productivity. The device comprises a body (2) with an upper opening that contains a culture medium (3), which occupies half of its volume; a plurality of rotary discs (4) as a supporting surface on which the microalgae cells (5) adhere, promoting their growth to form a biofilm, said plurality of discs (4) being fixed to a horizontal rotation shaft (6), which passes through the body (2), and being equally spaced apart, the location of the rotation shaft (6) inside the body (2) being such that said discs remain semi-submerged in the culture medium (3); gas-liquid diffusers for gas transfer and bubbling in the culture medium (3); at least one moisture sensor and at least one temperature sensor for monitoring the moisture and temperature, respectively, of the gas phase inside the body (2) of the device (1); at least one temperature sensor for monitoring the temperature of the culture medium (3); an upper cover (7) on the upper opening of the body (2), which prevents the culture medium (3) and microalgae cells (5) from being exposed to the outside environment; a lighting board (8) arranged between each pair of discs (4) of the plurality of discs (4), being located on the rotation shaft (6) and arranged in slots (71) in the cover (7) so that said lighting boards (8) are not in contact with the inside of the body (2); and an electric mo

CULTIVATION DEVICE

Resumen de: US2025197786A1

A cultivation device comprises a water retention part and an accommodation part. Retention water is retained in the water retention part. A cultivation liquid and a microalga are accommodated in the accommodation part. The water retention part and the accommodation part are adjacent to one another. At least one section of the accommodation part is in contact with the water retention part. A peripheral section of the accommodation part has a contact region that contacts the retention water when the retention water is retained in the water retention part, and a non-contact region that does not contact the retention water.

METHOD FOR HARVESTING MICROALGAE AND EXTRACTING USEFUL MICROALGAE PRODUCTS USING ULTRATHIN ANISOTROPIC MAGNETIC NANOPARTICLES

Resumen de: KR20250085071A

본 발명은 미세조류가 포함된 용액에 표면에 양전하가 유도된 초박형 자성 나노입자를 첨가한 후 혼합하여 자성 나노입자-미세조류 응집체를 형성하는 제1 단계, 상기 자성 나노입자-미세조류 응집체가 포함된 혼합용액을 초음파 처리하는 제2 단계, 상기 초음파 처리된 혼합용액에 지질추출용매를 처리하여 미세조류가 생산한 유용 물질 및 지질을 추출하는 제3 단계 및 자석을 이용하여 상기 초음파 처리된 혼합용액에서 상기 자성 나노입자를 회수하는 제4 단계를 포함하는 초박형 자성 나노입자를 이용한 미세조류의 수확 및 미세조류가 생산한 유용 물질 및 지질의 추출 방법을 개시하며, 상기 제2 단계 동안, 상기 초박형 자성 나노입자가 상기 미세조류의 세포벽을 기계적으로 파쇄하여 세포벽 내에 있는 미세조류가 생산한 유용 물질 및 지질을 추출하는 것을 특징으로 한다.

METHOD FOR CULTIVATING CYANOBACTERIA

Resumen de: US2025188443A1

A method for cultivating cyanobacteria includes: providing the cyanobacteria; subjecting the cyanobacteria to physical mutagenesis, so as to obtain primary mutant cyanobacteria; subjecting the primary mutant cyanobacteria to chemical mutagenesis, so as to obtain secondary mutant cyanobacteria; and subjecting the secondary mutant cyanobacteria to a temperature resistance test and an environment resistance test, so as to obtain target cyanobacteria. A fatality rate of the physical mutagenesis ranges between 50% and 80%, and a fatality rate of the chemical mutagenesis ranges between 40% and 55%.

IMPROVEMENT OF NUTRITIONAL VALUE OF FISH FEED

Resumen de: EP4566457A1

This invention relates to optimization of standard fish feed by incorporating a c-phycocyanin additive into a standard fish feed in an oil suspension. Isolated c-phycocyanin, which is isolated from the biomass of the genus Microcystis (microalgae) and Aphanizomenonflos-aquae (Klamath algae), improves the physiological parameters, growth intensity and physical/chemical meat properties of rainbow trout (Oncorhynchus mykiss) and African catfish (Clarias gariepinus).

MEDIUM ADDITIVE FOR CULTURING CULTURED MEAT, CELL CULTURE MEDIUM FOR CULTURING CULTURED MEAT COMPRISING SAME, AND METHOD FOR CULTURING CULTURED MEAT USING SAME

Resumen de: WO2025116258A1

The present invention relates to an invention utilizing a microalgae extract as a medium additive for culturing cultured meat. More specifically, the present invention uses an extract of chlorella, which is a kind of microalgae, as a medium additive component, thereby making it possible to effectively induce cross-differentiation from muscle stem cells into adipocytes and provide cultured meat having improved flavor by inducing cells in which muscle fat is present at the same time. In addition, the use of the medium additive of the present invention replaces fetal bovine serum, which is a culture medium component for cultured meat, or is used in combination with fetal bovine serum, thereby enabling a reduction in the use of expensive fetal bovine serum and enhancing the culture effect of cultured meat, thus providing cultured meat having excellent cost effectiveness.

GLASS NOODLES WASTEWATER TREATMENT PROCESS BASED ON MICROALGAE

Resumen de: WO2025112477A1

The present invention relates to a glass noodles wastewater treatment process based on microalgae, belonging to the technical field of microbial wastewater treatment. Chlorella sorokiniana NZ1 and Monoraphidium sp. NZ4 are selected. An analysis of experiment results shows that when Chlorella sorokiniana NZ1 and Monoraphidium sp. NZ4 are subjected to mixed culturing, the biomass of both in the wastewater reaches the highest level. At the same time, the removal rates of water quality indicators also exhibit the most significant improvement; specifically, the removal rates of COD, TN, ammonia nitrogen, and TP can respectively reach 83.4%, 91.19%, 81.51%, and 78.71%. Thus, it can be concluded that subjecting the algal strains NZ1 and NZ4 to mixed culturing is the most effective glass noodles wastewater treatment method.

Vegetable-Based Food Product

Resumen de: US2025176603A1

A vegetable-based food product for use in chronic autoimmune thyroiditis (Hashimoto's disease) is described. It includes a mixture of cooked or steamed vegetables, nuts, herbs and water. It contains steamed broccoli and Brazil nuts and olive oil with omega-3 hemp oil and thyme and parsley and onion and black mustard and black cumin and garlic and curcumin and/or piperine and beta-glucans as a source of selenium from Shitake mushrooms (Lentinula edodes) along with a liquid extract of microalgae containing omega-3 acids and MCT (oil powder) and inulin and is enriched with a functional additive in the form of a highly concentrated vegetable protein isolate.

CULTURE DEVICE

Resumen de: US2025179407A1

A culture device comprises an accommodation part which is capable of accommodating a culture solution and a microalgae, and a plurality of guide parts which are provided to the accommodation part. A guide part has a main body part and a ceiling part which is provided to an upper end of the main body part. In the main body part, a gas is supplied to a lower end which faces a bottom part of the accommodation part. The ceiling part directs the gas from the guide part in one direction in the width direction of the accommodation part.

G1-5 Compositions for anti- inflammation comprising an extract of microalgae Nannochloropsis sp. G1-5

Resumen de: KR20250080358A

본 발명은 미세조류 나노클로롭시스 속 G1-5(Nannochloropsis sp. G1-5) 균주의 메탄올 추출물을 유효성분으로 포함하는 항염증용 조성물에 관한 것으로, 나노클로롭시스 속 G1-5(Nannochloropsis sp. G1-5) 균주의 메탄올 추출물은 LPS로 자극을 준 RAW264.7 세포에서 산화질소(NO) 생성을 현저히 억제하고, 산화질소 합성효소(iNOS) 및 프로스타글란딘 합성효소 COX-2 발현을 억제하며, 전염증성 사이토카인인 TNF-α, 인터루킨-6(IL-6) 발현을 억제하는 항염증 효과를 나타내는 것을 확인함으로써, 나노클로롭시스 속 G1-5(Nannochloropsis sp. G1-5) 균주의 메탄올 추출물은 항염증용 조성물로 제공될 수 있으며, 질소산화물(NO) 생성 억제용 시약, 유도성 질소산화물 합성효소(iNOS) 발현 억제용 시약, COX-2 발현 억제용 시약, 염증성 사이토카인 발현 억제용 시약으로도 제공된다.

METHOD FOR DETERMINING OUTER MEMBRANE DETACHMENT IN CYANOBACTERIUM, DEVICE FOR DETERMINING OUTER MEMBRANE DETACHMENT IN CYANOBACTERIUM, AND PROGRAM

Resumen de: EP4563707A1

The present disclosure provides a method for determining deprivation of an outer membrane of a cyanobacterium with which whether an outer membrane is deprived from a cell wall can be readily determined. The method for determining deprivation of an outer membrane of a cyanobacterium according to the present disclosure includes a measurement step (S01) in which a concentration of at least one amino acid selected from the group consisting of isoleucine, leucine, tyrosine, and phenylalanine in a culture supernatant of a cyanobacterium is measured and a determination step (S02) in which whether an outer membrane of the cyanobacterium is deprived from a cell wall of the cyanobacterium is determined on the basis of the concentration of the at least one amino acid, the concentration being measured in the measurement step.

Porous Resin and Collection Device for Collecting Microalgae

Resumen de: KR20250077834A

본 발명은 미세조류를 포집하는 다공성 수지와 포집장치에 대하여 개시한다. 본 발명은 미세조류가 포함된 용수를 흡입하여 소정의 위치에 공급하는 동력부재; 상기 용수의 통과 시 포함된 미세조류가 포집되는 미세한 간격이 구비된 다공성수지로 형성되는 포집부재; 상기 포집부재가 내부 적재실에 장착되는 지지프레임과, 상기 지지프레임의 상부 및 하부에 입수구와 출수구가 구비되는 채취부재;를 포함하는 구성으로 이루어진다.

A METHOD OF PRODUCING KOMBUCHA WITH A HIGH CONTENT OF BIOACTIVE COMPOUNDS USING MICROALGAE DERIVATIVES

Resumen de: WO2025110939A1

The invention relates to a novel food with high bioactive compound content that can be used in the food industry and to a production method. The invention particularly relates to a method of producing a new food with a high content of bioactive compound by using edible microalgae and / or microalgae derivatives and a food obtained by this production method. In the present invention, the said food is in particular a beverage, more particularly a Kombucha tea beverage.

Composition bioactive dérivée du sous-produit de l'extrait de microalgue Dunaliella salina, riche en polyphénols aux effets antioxydants pour la conservation de l'huile d'argan

Resumen de: MA63147A1

The present invention relates to a bioactive formula with antioxidant action designed to preserve argan oil, produced from the microalgae Dunaliella salina. This formula has a polyphenol concentration equivalent to 1% (w/w), preferably exceeding 5% (w/w). The invention also includes a process for extracting and purifying this bioactive composition.

Parasol-type streetlights for air purification using microalgae

Resumen de: KR20250075833A

본 발명은 미세조류를 이용한 공기정화 파라솔형 가로등의 제작방법에 관한 것으로, 더욱 상세하게는 미세조류가 담겨있는 공기정화 파라솔형 가로등의 기둥 아래부분에 설치된 벤치와 파라솔을 고정시키고 LED를 달 수 있는 기둥 윗부분을 제작할 수 있는 제작 방법에 관한 것이다.이를 위하여 본 발명은 미세조류를 담을 수 있는 공기정화 파라솔형 가로등의 기둥과, 오염된 공기를 흡수함과 동시에 미세조류로 공급하는 에어 펌프가 설치된 발명품을 이용하는 시민들에게 편의를 제공할 수 있는 벤치, 파라솔을 고정하고 미세조류가 정화한 깨끗한 공기를 내보낼 수 있는 환기구가 달려 있으며 미세조류가 24시간 내내 오염된 공기를 정화할 수 있도록 LED를 달 수 있는 발명품의 윗부분으로 구성되어 있으며 세 부품을 모두 조립하여 미세조류를 담았을 때 공기 정화의 효력을 발휘한다는 점에 특징이 있다.

NOVEL SCHIZOCHYTRIUM SP. STRAIN AND METHOD FOR PRODUCING OIL CONTAINING OMEGA-3 USING SAME

Resumen de: EP4560005A1

A Schizochytrium sp. strain, which is a high-bio-oil-producing microalgae containing a high concentration of DHA, of the present invention, has high bio-oil productivity due to a high crude fat content in a produced biomass, and has the characteristic of containing a high content of docosahexaenoic acid within cells. Accordingly, the strain itself, a biomass produced by culturing and fermenting the strain, and its concentrates and extracts can be helpfully used as a feed composition or food composition.

METHOD FOR THE PRESERVATION OF MICROALGAL STRAINS IN A SEMI-SOLID MEDIUM (Machine-translation by Google Translate, not legally binding)

Resumen de: ES3020982A1

Method for the conservation of microalgal strains in a semi-solid medium. The present invention relates to a method for the medium- to long-term conservation of microalgal strains in a semi-solid medium. Advantageously, the method of the invention comprises carrying out the following steps: (a) providing a first culture vessel, where said vessel contains a semi-solid microalgal culture medium comprising an agar concentration between 0.1-1.0% v/v; (b) depositing a microalgal strain on the semi-solid microalgal culture medium; and (c) incubating the microalgal strain deposited on the semi-solid microalgal culture medium at a temperature between 15-30 ° C and under incident irradiation of {IMAGE-01} with a photoperiod of between 16:8 to 8:16 (light:dark) for a time between 7-30 days. (Machine-translation by Google Translate, not legally binding)

METHODS AND COMPOSITIONS FOR TREATING SOIL AND PLANTS

Resumen de: US2025162956A1

The present invention comprises methods and compositions comprising a microalgae consortium. A composition comprises at least one genera of microalgae flocculated by Paenibacillus polymyxa strain, Strain 2, deposited under the Budapest Treaty as ATCC Accession No. PTA-12841. Methods of treating the soil comprise adding a composition of the present invention to soil.

FOOD SUPPLEMENT

Resumen de: US2025161385A1

A feed additive for farm animals and poultry is provided, including biomass and/or cultural liquid of the microalgae Chlorella vulgaris together with chlorellin in a titer of 108-1014 CFU per 1 ml of cultural liquid and/or biomass. Related methods are also provided.

Composition for treating contaminated water containing microalgae as an active ingredient and its use

Resumen de: KR20220152129A

The present invention provides an environmentally friendly water treatment method for treating polluted water including reverse osmosis concentrated water containing high nutrients, ions and metal elements through Chlorella spp. and Desmodesmus spp. that consume large amounts of nutrients very efficiently and grow rapidly under various sewage conditions, and at the same time manufacturing biofuel.

MICROALGAE COMPOSITIONS AND METHODS FOR TREATING DISEASE

Resumen de: WO2025101437A1

In an aspect, the disclosure provides methods for making LC-PUFA and VLCFAs in a host organism. The LC-PUFA and VLCFAs can be new chemical entities, well-known LC-PUFA, and derivatives of LC-PUFA as well as VLCFAs. The host cells can be microalgae, fungi or other host cells. In a related aspect, the disclosure provides host cells engineered to have biochemical pathways for making LC-PUFA and VLCFAs.

DUNALIELLA SALINA MICROALGAE WITH HIGH GROWTH RATE UNDER LOW-SALT CONDITIONS, AND METHOD FOR PRODUCING BETA-CAROTENE BY USING SAME

Resumen de: WO2025100941A1

The present invention provides Dunaliella salina microalgae having the ability to produce beta-carotene at a NaCl concentration of 0.1M or less. In addition, the present invention provides a method for producing beta-carotene, comprising a step of culturing the Dunaliella salina microalgae.

ENHANCED TRIACYLGLYCEROL PRODUCTIVITY AND EXTRACTABILITY IN AN ENGINEERED MICROALGA

Resumen de: WO2024008896A1

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.

CELL CULTURE COMPOSITION CONTAINING MICROALGAE EXTRACT AND USE THEREOF

Resumen de: EP4553150A1

The present invention relates to a cell culture composition containing an extract from microalgae of the Thraustochytrid family. It has been found that when muscle cells are cultured in a medium containing an extract derived from the biomass of microalgae belonging to the Thraustochytrid family according to the present disclosure, the proliferative capacity of muscle cells is enhanced. Therefore, the cell culture composition including the microalgae extract can be used as a substitute for fetal bovine serum among the components of cell culture media.

DUNALIELLA SALINA MICROALGAE HAVING BETA-CAROTENE PRODUCTION CAPACITY AND BETA-CAROTENE PRODUCTION METHOD USING THE SAME

Resumen de: KR20250066401A

본 발명은 0.1M 이하의 NaCl 농도에서 베타카로틴 생산 능력을 갖는, 두날리엘라 살리나(Dunaliella salina) 미세조류를 제공한다. 또한 본 발명은 상기 두날리엘라 살리나 미세조류를 배양하는 단계를 포함하는, 베타카로틴 생산방법을 제공한다.

MICROALGAE CULTIVATION AND HARVESTING DEVICE TO IMPROVE INDOOR AIR QUALITY

Resumen de: KR20250064315A

실내 공기질 개선을 위한 미세조류 배양 및 수확장치에 관한 것으로서, 보다 구체적으로, 상기 미세조류 배양 및 수확장치는 각각 별도로 설치된 미세조류 배양기, 배수부 및 건조부를 포함함으로써 보다 간편하게 미세조류를 배양하고 이를 수확하는 것에 특징이 있다.

ALGAE-BASED BIOPLASTICS AND METHODS OF MAKING

Resumen de: US2025145938A1

Provided for are methods of producing triacylglycerol-accumulated microalgae, methods for making bioplastics from triacylglycerol-accumulated microalgae, methods for making alga-mixed plastics, and products including these bioplastics. Methods of triacylglycerol accumulation using centrifugation are also provided. Products such as plastic beads and other consumer products can be made from the bioplastics described herein.

SYSTEM FOR THE CULTIVATION OF MICROALGAE

Resumen de: WO2025094221A1

The invention refers to the biotechnological sector of growth processes of photosynthetic organisms such as microalgae, and relates to a system (100) for the cultivation of microalgae (A) comprising: mains water supply means (10); a treatment section (20) for the incoming water; a preparation section (30) of a concentrated solution (SC) of treated water and nutrients (N); a general loading and compensation tank (40); a growth section (50) for said microalgae (A) comprising a plurality of reactors (R); means for feeding (60) a growth gas in said reactors (R); a separation section (70) of said microalgae (A) from the growth liquid and total recovery of the liquid itself; a hydraulic circuit connecting said sections of said system (100); - a command and control unit (80). Said general tank (40) is adapted to contain a growth solution, comprising said concentrated solution (SC), treated water for its dilution and recovery water comprising said growth liquid, to distribute it to said reactors (R) so as to create, within each reactor (R), a growth environment for said microalgae (A).

MICROALGA DISPERSION AND PREPARATION METHOD OF MICROALGA DISPERSION

Resumen de: US2025145937A1

A method for preparing a microalgal dispersion from a microalga-containing liquid, the microalga-containing liquid containing a microalga having a body length of less than 1000 μm, the method including a concentration step of performing cross flow filtration of the microalga-containing liquid using a hollow fiber membrane, wherein a circulation linear velocity in the cross flow filtration in the concentration step is in a range of 0.2 m/sec or more and 1.3 m/sec or less.

Multi-channel tubular photo-oxidation bioreactor device

Resumen de: CN222821568U

The utility model discloses a multichannel tubular photo-oxidation bioreactor device, which relates to the technical field of microalgae culture and online monitoring and comprises a water bath box, a gas regulation and control module, a dissolved oxygen monitoring module, an optical density monitoring module and a PH (potential of hydrogen) monitoring module. A glass culture tube and a temperature control module are mounted in the water bath box, the dissolved oxygen monitoring module extends into the glass culture tube through a probe or a sensor, and the optical density monitoring module is in contact with the glass culture tube through an optical sensor or a probe, so that accurate culture conditions are provided, and the microalgae culture efficiency is improved; according to the device, a controllable algae culture environment is provided, meanwhile, real-time monitoring of dissolved oxygen, OD value, PH and temperature is achieved, collection and analysis of scientific research data are facilitated, a user can conveniently set a culture program and check measurement data through a graphical interface of a control system, and the device is convenient to install and use due to the compact machine body structural design.

CHLORELLA MICROALGA AND USE THEREOF IN WASTEWATER TREATMENT

Resumen de: WO2025086320A1

Provided are a Chlorella microalga and the use thereof in wastewater treatment, the microalga being Chlorella sp., and the accession number thereof being CCTCCM 20231952. The wastewater includes municipal wastewater, food processing wastewater, printing and dyeing industrial wastewater and animal husbandry breeding wastewater.

BIO-BASED TAURINE PRODUCTION

Resumen de: US2025137018A1

The present invention describes methods for the fermentative production of taurine-containing products from unicellular organisms. More particularly, the invention relates to genetic modifications of the taurine and/or substrate biosynthetic pathways in unicellular organisms that include bacteria, algae, microalgae, diatoms, yeast, or fungi. The invention also relates to fermentation and processing methods for the production of various taurine-containing products. The invention also relates to the use of the cells, fermentation broth or extracts that contain taurine to produce products for use in food, feed, beverages, dietary and health supplements, cosmetics, personal care, pharmaceuticals, or agricultural production.

SYSTEM AND METHOD FOR CULTIVATING AND HARVESTING CYANOBACTERIAL BIOMASS

Resumen de: US2025136922A1

Disclosed is a system for cultivating and harvesting a cyanobacterial biomass. The system comprises at least one vessel that, when in operation, grows the cyanobacterial biomass in a nutrient growth media under regulated growth conditions and a base unit configured to receive the at least one vessel. The system also comprises at least one light source and a cultivation air pump that, when in operation, supplies light, heat and air to the at least one vessel. Notably, the cultivation air pump supplied air via a one-way air valve in the at least one vessel. The system also comprises at least one photodiode that, when in operation, measure a cyanobacterial biomass concentration in the at least one vessel. Disclosed also is a method for cultivating and harvesting a cyanobacterial biomass.

Self-control type food wastewater advanced treatment reactor based on algal membrane and use method of self-control type food wastewater advanced treatment reactor

Resumen de: CN119898922A

The invention discloses an algal membrane-based self-controlled food wastewater advanced treatment reactor and a use method, and relates to the field of food production wastewater treatment, and the algal membrane-based self-controlled food wastewater advanced treatment reactor comprises a water absorption room, a microalgae biological treatment unit, an ultrafiltration membrane separation unit, an effluent and biomass collection device and a computer control system. The secondary treatment effluent of the food processing wastewater flows into the water absorption chamber through the water inlet pipe, most of original suspended matters are removed through the ceramsite layer and the gravel layer, the effluent enters the microalgae biological treatment unit through the water absorption pipe, and main residual pollutants such as nitrogen, phosphorus and organic matters in the secondary treatment effluent of the production wastewater are removed in the microalgae biological treatment unit. Meanwhile, microalgae utilize nutrient substances in the wastewater to accumulate biomass, and after the microalgae biomass is accumulated to a certain level, algae liquid of the microalgae biological treatment unit enters the ultrafiltration membrane separation unit to separate the microalgae from the wastewater, so that the traditional MBR treatment process is optimized, the occupied space is reduced, and the wastewater treatment efficiency is improved. The method has a wide application pros

Active cyanobacteria dry land fertilizer as well as preparation method and application thereof

Resumen de: CN119899054A

The invention belongs to the technical field of agricultural biology and the technical field of compound fertilizers, and discloses an active cyanobacteria dry land fertilizer and a preparation method and application thereof.The method comprises the following steps that cyanobacteria is cultured and harvested to obtain cyanobacteria concentrated pulp, then the cyanobacteria concentrated pulp is rinsed with a drying protective agent, and the active cyanobacteria dry land fertilizer is obtained; preferably, symbiotic rhizobium is added into the cyanobacteria concentrated slurry, and the cyanobacteria concentrated slurry is mixed with a matrix material to obtain a cyanobacteria embedding material; then drying and crushing the cyanobacteria concentrated slurry or the cyanobacteria embedding material to obtain cyanobacteria dry powder; and adding the cyanobacteria dry powder into a plant fertilizer or an edible fungus fertilizer or water or a soil improvement product to obtain the active cyanobacteria dry land fertilizer. Based on adsorption and embedding of plant growth promoting substances contained in cyanobacteria by the drying protective agent, the active cyanobacteria dry land fertilizer has the advantages of being resistant to storage and transportation, capable of remarkably promoting plant growth, suitable for various field environments, capable of improving soil and increasing fertility and the like.

Polysaccharide-producing talsalonema and application thereof in treatment of high-nitrogen and high-phosphorus wastewater

Resumen de: CN119875842A

The invention discloses a strain of polysaccharide-producing Trichothrix sp. And application of the polysaccharide-producing Trichothrix sp. ZSL-NS5 in high nitrogen and phosphorus wastewater treatment. The strain named as the Trichothrix sp. ZSL-NS5 is preserved in the China Center for Type Culture Collection on November 7, 2024, and the preservation number is CCTCC NO.M 20242470. The invention further discloses a preparation method of the polysaccharide-producing Trichothrix sp. ZSL-NS5. The application of the polysaccharide-producing Trichothrix sp. ZSL-NS5 in the high nitrogen and phosphorus wastewater treatment of the polysaccharide-producing Trichothrix sp. The algal strain is separated from wastewater of an aerobic pond of a dairy farm, has relatively strong wastewater tolerance and pollutant purification capacity, and has a total phosphorus removal rate of more than 95%, an ammonia nitrogen removal rate of nearly 100%, a TN removal rate of more than 85% and a COD removal rate of more than 70%. Besides, the talsalonema has the capability of producing microalgae EPS and polysaccharide, the polysaccharide content of the talsalonema reaches 63%, the yield of the talsalonema is obviously higher than that of common microalgae, and the talsalonema has the application value of preparing chemical raw materials and drugs.

Brevibacillus laterosporus GBW-M0 and application thereof in aquaculture

Resumen de: CN119875879A

The invention provides brevibacillus laterosporus GBW-M0 and an application of the brevibacillus laterosporus GBW-M0 in aquaculture. The brevibacillus laterosporus GBW-M0 is classified and named as brevibacillus laterosporus, and the preservation number of the brevibacillus laterosporus GBW-M0 is CGMCC (China General Microbiological Culture Collection Center) No. 32335. The brevibacillus laterosporus GBW-M0 is subjected to seed solution preparation and immersion fermentation, and brevibacillus laterosporus GBW-M0 fermentation liquor is prepared. The brevibacillus laterosporus GBW-M0 fermentation liquor can reduce the concentration of enterocytozoon hepatopenaeus carried in the bodies of penaeus vannamei, is further used for preventing and controlling microsporidiosis of aquaculture animals, and can also inhibit the growth of microcystis aeruginosa, so that the brevibacillus laterosporus GBW-M0 fermentation liquor is used for treating cyanobacterial bloom in aquaculture water, and the success rate of aquaculture is improved.

Artificial crust compound biological agent and use method thereof

Resumen de: CN119875937A

The invention discloses an artificial crust compound biological agent and a use method thereof, and aims to solve the problem of wound ecological restoration in Hexi corridor engineering construction. The compound biological agent is composed of a microalgae and artemisia desertorum gum mixed solution and bacillus powder, the microalgae comprise microcoleus vaginatus, pseudocladosporium javanicum and championia gracilis, the microalgae and the artemisia desertorum gum are mixed according to a specific proportion and then are compatible, and bacillus subtilis or bacillus mucilaginosus can be selected as the bacillus powder. When in use, the bacillus powder is firstly scattered, and then the microalgae artemisia desertorum gum mixed solution is sprayed. The compound biological agent provided by the invention can significantly improve the crust thickness, biomass and compressive strength of the sand soil, reduce the wind erosion rate, increase the contents of nitrogen, phosphorus, potassium and organic matters in the soil, effectively improve the ecology of the sand soil, and provide a new technology for wind erosion prevention and ecological restoration of the engineering slash in the arid region.

Photo-biological circulating fixed bed reaction system and method for purifying urine based on microalgae

Resumen de: CN119874042A

The invention belongs to the technical field of domestic sewage treatment, and particularly relates to a photobiological circulating fixed bed reaction system and method for purifying urine based on microalgae, and the photobiological circulating fixed bed reaction system comprises a circulating fixed bed reactor, a lighting system, an aeration system and a liquid driving system, the photo-biological circulating fixed bed reaction system consists of a circulating fixed bed reactor, a lighting system, an aeration system and a liquid driving system; clinoptilolite is used as a filler of the fixed bed area, the concentration of ammonia nitrogen in the urine can be greatly reduced in the cyclic adsorption process, so that a favorable environment is provided for growth of microalgae, the concentration of the ammonia nitrogen in the treated urine is reduced to a quite low level, and under the action of concentration gradient pressure, the concentration of the ammonia nitrogen in the urine is reduced to a quite high level. The clinoptilolite filler loaded with ammonia nitrogen can desorb ammonia nitrogen into urine, a nitrogen source is provided for growth of microalgae, and meanwhile regeneration of the clinoptilolite filler is achieved in the process.

Method for improving key enzyme to promote euglena to degrade phenol and enhance carbon sequestration

Resumen de: CN119875986A

The invention discloses a technology for degrading phenol and sequestering carbon by microalgae, and aims to provide a method for improving key enzyme to promote euglena to degrade phenol and enhance carbon sequestration. Comprising the following steps: performing phenol concentration gradient domestication on euglena cells, and adjusting gene expression quantities of three key enzymes, namely H < + > transport ATP enzyme, pyruvate decarboxylase and isocitrate dehydrogenase in the euglena cells; carrying out enlarged culture growth on the euglena domesticated plant, adding a proper amount of phenol into a culture medium, and continuously introducing gas containing CO2; in the culture process, the carbon sequestration rate of the euglena is calculated by measuring the carbon element content in the biomass of the euglena liquid; and after the culture is finished, measuring the content of euglena polysaccharide in the algae liquid in unit volume, and measuring the content of phenol in the algae liquid to calculate the degradation rate of phenol. According to the method, the euglena cells are domesticated by adopting phenol concentration gradient, the expression quantity of key enzyme genes is increased by several times, the phenol degradation capacity of the euglena cells is enhanced, the carbon sequestration rate of the euglena cells is increased, and the content of polysaccharide in the cells can be increased at the same time.

Microalgae culture method

Resumen de: CN119875841A

The invention relates to a microalgae culture method, which comprises the following steps: carrying out first culture on a first microalgae species, and separating the cultured material to obtain a first culture clear liquid; a second microalgae species and the first culture clear liquid are mixed, second culture and third culture are sequentially carried out, and the third culture is carried out in the presence of a grease inducer. According to the method disclosed by the invention, the grease content of a microalgae product can be remarkably improved on the premise of not influencing the microalgae biomass accumulation level, and the utilization value of microalgae biomass is improved.

Acinetobacter with algal inhibition capability and application of acinetobacter

Resumen de: CN119875900A

The invention discloses acinetobacter with algal inhibition capability and application thereof, and relates to the technical field of microorganism and environmental organic pollutant repair and governance, the acinetobacter with algal inhibition capability is preserved in Guangdong Microbial Culture Collection Center, and the preservation number is GDMCC NO.65654. The acinetobacter with algal inhibition capability is preserved in Guangdong Microbial Culture Collection Center; the 16SrDNA nucleotide sequence of the acinetobacter is shown as SEQ ID NO: 7, and the acinetobacter is applied to treatment of cyanobacterial bloom. The method comprises the following steps: extracting an extracellular culture of cylindrotheca, culturing on a beef extract peptone solid culture medium, extracting a single colony from a culture product, preserving, inoculating into a beef extract peptone liquid culture medium, continuously culturing, and carrying out PCR (Polymerase Chain Reaction) amplification on bacteria separated from the culture product by adopting a specific primer pair. The obtained amplification product is subjected to sequencing and contrastive analysis, bacteria are identified to be the acinetobacter with the algae inhibition capacity, the growth of blue-green algae can be effectively inhibited, and the method has the advantages of being environmentally friendly, low in cost and remarkable in algae control effect.

Natural reoxygenation enhanced nitrogen and phosphorus removal cascade artificial wetland system

Resumen de: CN119874043A

The invention relates to the technical field of constructed wetlands, in particular to a natural reoxygenation enhanced nitrogen and phosphorus removal cascade constructed wetland system. The system is provided with a first-stage constructed wetland, a second-stage ecological pond and a third-stage constructed wetland which are sequentially connected in a falling manner, wetland plants are planted in the first-stage constructed wetland and the third-stage constructed wetland; ecological pond plants are planted in the second-stage ecological pond through floating rafts, non-woven fabric is arranged below the floating rafts, and microalgae are enriched on the non-woven fabric; a mixed matrix of volcanic rock, zeolite and magnesite is arranged in the first-stage constructed wetland, a mixed matrix of volcanic rock and zeolite is arranged in the third-stage constructed wetland, and the effluent part of the second-stage ecological pond flows back to the front end of the first-stage constructed wetland. By means of a series of treatment modes, removal of nitrogen and phosphorus is enhanced, the removal rates of ammonia nitrogen, nitrate nitrogen, total nitrogen, COD and total phosphorus can reach 98.8%, 99.2%, 99.0%, 93.52% and 94.0% respectively, and the method has wide application prospects.

Probiotic Formulations for Improving Athletic Performance

Resumen de: US2025127827A1

A probiotic formulation is provided including one or more bacteria, bacterial strains or bacterial species of the genus Veillonella, genus Faecalibacterium, genus Phascolarctobacteria, genus Oscillospira, genus Ruminococcus, genus Bacteroides, genus Blautia, family Christensenellaceae, genus Dialister, or phylum cyanobacteria.

HIGH-PROTEIN MICROALGAL BIOMASS HAVING EXCELLENT PEPSIN DIGESTIBILITY, CULTURE METHOD AND USE THEREOF

Resumen de: US2025129325A1

The present disclosure provides high-protein microalgal biomass, a culture method and use thereof.

FLASHLIGHT INTERNALLY AND EXTERNALLY JACKETED SUPER HELICAL REACTOR

Resumen de: WO2025083712A1

The present invention relates to a Flash Light Internally and Externally Jacketed Super Helical Reactor including a system (100) and a method (300) for air purification, elevating oxygen levels, semi-purification of water, and fixing pollutants The system (100) includes an intake means (101) for contaminated liquid/air/gas, sensors (102,110) for measuring carbon and oxygen, UV filtration unit (103), an autoclave treatment system (104), mixing chamber (105), a water pump (106), photo system (107) with helical tubular coils (1) and LEDs, filter (108), and UV system (109) connected to each other. It also features a central heating or cooling system (111). The system (100) enhances oxygen levels, fixes CO2 for carbon credits, and provides effective treatment of waste gas and water. 15 It is user-friendly, highly efficient, and serves multiple purposes. The system (100) is suitable for any chemical reaction requiring extended residence time, microbial or yeast cultivation, and the growth of microalgae or macroalgae.

AGENT FOR INDUCING PLANT DISEASE RESISTANCE, METHOD FOR INDUCING PLANT DISEASE RESISTANCE, AND METHOD FOR PRODUCING AGENT FOR INDUCING PLANT DISEASE RESISTANCE

Resumen de: EP4541190A1

The present disclosure provides a plant disease resistance inducing agent that can effectively induce resistance to a plant disease. A plant disease resistance inducing agent according to the present disclosure contains a secretion product of a cyanobacterium.

Microalgae culture system utilizing photovoltaic green electricity

Resumen de: CN222770839U

The utility model discloses a microalgae culture system utilizing photovoltaic green electricity, which comprises a photovoltaic device and a culture device, the photovoltaic device comprises a photovoltaic panel, the photovoltaic panel is obliquely arranged relative to the ground, the culture device comprises a culture reaction mechanism and an illumination mechanism, the culture reaction mechanism is provided with a culture space for accommodating microalgae culture solution, and the illumination mechanism is arranged on the culture space. The cultivation reaction mechanism is arranged on the lower side of the photovoltaic panel, the cultivation reaction mechanism is arranged in a shadow area of the photovoltaic panel, the illumination mechanism is at least used for providing illumination for the cultivation space, and the photovoltaic panel is connected with the illumination mechanism so as to provide energy for the illumination mechanism. The cultivation reaction mechanism and the illumination mechanism are arranged on the lower side of the photovoltaic panel, the cultivation space can be completely covered by the photovoltaic panel, and illumination is provided for the cultivation space through the illumination mechanism, so that the illumination mechanism can greatly prolong the growth time of microalgae; on the premise that the structure and arrangement rule of an existing photovoltaic panel are not changed and the generating capacity is not reduced, microalgae culture

Single-cell cyanobacteria separation and purification method based on paramecium enrichment and application

Resumen de: CN119842535A

The invention discloses a paramecium enrichment-based single-cell cyanobacteria separation and purification method and application. The method comprises the following steps: putting a single-cell cyanobacteria solution into a sterile BG11 conical flask; the method comprises the following steps: adding a paramecium solution with known concentration into a sterile BG11 conical flask filled with a single-cell cyanobacteria solution to obtain a mixed solution of paramecium and single-cell cyanobacteria; placing the sterile BG11 conical flask filled with the mixed solution of paramecia and single-cell blue-green algae in a first culture environment for culture to obtain a blue-green algae and paramecia enriched solution; transferring the blue-green algae and paramecium enrichment solution to a sterilized BG11 agar plate for plate coating treatment, and inversely placing the BG11 agar plate in a second culture environment for culture until blue-green algae falling without infectious microbes is formed; and carrying out expanding culture on the bacterial-free cyanobacteria colony to obtain bacterial-free single-cell cyanobacteria. The method can greatly shorten the time of traditional isolated culture of single-cell cyanobacteria, and can prevent bacterial pollution of the external environment.

High-stability illumination system for microalgae culture

Resumen de: CN119838963A

The invention discloses a high-stability illumination system for microalgae culture, and relates to the technical field of microalgae culture. According to the columnar illumination system, an outer pipe body is arranged outside a lamp string in a sleeving mode; a tubular moving trolley is arranged in the outer pipe body, and an annular electromagnet carried by the moving trolley is used for driving an outer cleaning assembly arranged on the outer pipe body in a sleeving mode to move; the whole outer cleaning assembly is a pipe body, and an annular soft bag internally provided with iron powder is arranged on the inner wall. In the moving process of the moving trolley, an annular soft bag on the inner wall of the outer cleaning assembly deforms under the influence of magnetic force and efficiently scrapes off wall-attached microalgae in the up-down moving process; the high-stability illumination system for microalgae culture is stable and reliable, has an efficient self-cleaning function, is high in universality and can be conveniently cleaned.

High-speed-growing heterosylvus rugosa mutant strain

Resumen de: CN119842493A

The invention relates to the technical field of dominant algal strain breeding, in particular to a high-speed-growing heteroflexus akashiwo mutant strain which is named as YYAM035, and belongs to the technical field of high-speed-growing heteroflexus akashiwo mutant strain and application of the high-speed-growing heteroflexus akashiwo mutant strain. Compared with a wild strain (WT), the mutant strain YYAM035 has the advantages that the growth performance of the mutant strain YYAM035 is superior to that of the wild strain under the same culture condition, and the content of algal toxin in cells of the mutant strain is not weakened compared with that of the wild strain, so that the mutant strain can harvest more microalgal toxin than the wild strain under the same culture cost; after stable subculture for 3 months, the growth performance of the strain is still superior to that of a wild type algal strain, and the strain has better hereditary stability, so that the mutant strain can be used as a dominant algal resource for large-scale production of algal toxin.

DHA nutrient for poultry as well as production method and application of DHA nutrient

Resumen de: CN119837197A

The invention relates to the field of poultry feed, and particularly discloses a DHA nutrient for poultry as well as a production method and application of the DHA nutrient. The DHA nutrient for poultry is prepared from the following raw materials in parts by weight: 40 to 50 parts of microalgae ferment powder, 20 to 30 parts of plant seed ferment powder, 20 to 30 parts of puffed corn flour, 2 to 4 parts of krill meal, 2 to 4 parts of sea cucumber freeze-dried powder, 0.5 to 2 parts of krill oil, 2 to 5 parts of cotton seed oligosaccharide, 0.5 to 2 parts of DL-methionine, 0.2 to 2 parts of trace element premix, 0.02 to 0.04 part of vitamin A acetate and 0.2 to 0.4 part of vitamin D3. The DHA nutrient for poultry can be used as an additive of poultry feed, has small fishy smell, can improve the feed intake of poultry, and can effectively improve the DHA content in poultry eggs under the condition of not influencing the taste of the poultry eggs.

Genetically engineered algae with controllable flocculation as well as construction method and application of genetically engineered algae

Resumen de: CN119842792A

The invention discloses a flocculation-controllable genetic engineering alga and a construction method and application thereof, and is characterized in that the genetic engineering alga is phaeodactylum tricornutum into which an enabling plasmid pPha-J47869-EG01992-eGFP-FSP is introduced, the FSP is directionally expressed on the outer side of a phaeodactylum tricornutum cell, and the construction method comprises the following steps: constructing an induced expression plasmid pPha-J47869-eGFP and a directional expression plasmid pPha-J47869-EG01992-eGFP; artificially synthesizing a codon-optimized FSP coding sequence, inserting the codon-optimized FSP coding sequence into the downstream of the eGFP of the directional expression vector, and constructing an enabling plasmid; finally, the enabling plasmids are electrically transformed into phaeodactylum tricornutum, an f/2 plate culture medium is coated with the phaeodactylum tricornutum for culture, positive algae strains are screened and identified, and the gene engineering algae with controllable flocculation are constructed and have the advantages that the gene engineering algae can be efficiently combined with white carbon black, and the enabling process of microalgae is efficiently coupled with the culture and collection process of the microalgae.

Photobioreactor for microalgae culture

Resumen de: CN222770826U

The photobioreactor comprises a first motor, an oxygen increasing device, a fluorescent lamp, a magnetic cleaning ring and a magnetic traction frame, the first motor is arranged on the left side of the oxygen increasing device, the oxygen increasing device is arranged on a supporting rod, a fixing sleeve is arranged on the left side of the supporting rod, a supporting pipe is arranged below the supporting rod, and the fluorescent lamp is arranged on the supporting pipe. A water inlet pipe is installed on the right side of the water pump and connected with a water outlet funnel, a sealed transparent water tank is arranged above the water outlet funnel, a water outlet pipe is arranged on the left side of the sealed transparent water tank, a magnetic traction frame is arranged on the left side of the water outlet pipe, and a third motor is installed on the magnetic traction frame. According to the equipment, the sealed transparent water tank is in sliding connection with the internal magnetic cleaning ring, the magnetic traction frame driven by the third motor is matched, cleaning operation on the interior of the sealed transparent water tank can be achieved, the trouble of manual operation is reduced, and the production efficiency is guaranteed.

FERTILIZER PRODUCTION USING NITROGEN FIXING CYANOBACTERIA

Resumen de: WO2025079065A1

A method and system produce fertilizer products by growing cyanobacteria in a photobioreactor, the cyanobacteria performing nitrogen fixation using Nitrogen from the ambient air brought into the photobioreactor. The grown cyanobacteria is harvested from the photobioreactor as biomass, which is subject to anaerobic digestion in an anaerobic digestion reactor, to produce Ammonium, which is optionally subjected to nitrification, in a nitrification bioreactor, to produce the resultant fertilizer product.

MICROALGAE STRAIN HAVING EFFECT OF PROMOTING PLANT GROWTH AND USE THEREOF

Resumen de: US2025122464A1

The present application relates to a novel microalgae strain with the efficacy of promoting plant growth and a use thereof. When cultured in the presence of fermentation exhaust gas, a novel Chlorella vulgaris CD02-3002 strain according to an aspect grows fast with a high efficiency of photosynthesis and thus can effectively reduce the exhaust gas generated by microbial fermentation. Having the effect of promoting plant growth when applied to plants, a culture of the strain or a supernatant of the culture can be used as a fertilizer for plants and thus can be advantageously applied as a novel carbon reduction technique.

NOVEL COSMETIC USE OF AN EXTRACT OF THE MICROALGA TISOCHRYSIS LUTEA

Resumen de: WO2025078336A1

The invention relates to the cosmetic use of a Tisochrysis lutea extract or of a composition comprising same, for reducing dry dandruff and/or preventing the occurrence and/or reoccurrence thereof. The invention also relates to a cosmetic care process comprising the topical application, to the dry scalp, dry eyebrows and/or dry beard, of a Tisochrysis lutea extract or of a composition comprising same, for reducing dry dandruff and/or preventing the occurrence and/or reoccurrence thereof, in particular in individuals having a dry scalp.

PHOTOBIOREACTOR SYSTEM FOR THE REDUCTION OF AMMONIA AND CARBON DIOXIDE GASES IN POULTRY HOUSES

Resumen de: US2025122454A1

Disclosed is a photobioreactor system that reduces pollutant gases, mainly ammonia and carbon dioxide, released in poultry houses with microalgae and reduces dust and particulate matter in the internal environment of the poultry house, and also creates a brighter and more spacious environment for animals in the internal environment, while creating an insulation effect on the exterior of the poultry house by integrating into the exterior wall.

Streptomyces varioti with arsenic oxidation function and application of Streptomyces varioti in soil remediation

Resumen de: CN119823874A

The invention belongs to the technical field of microorganisms, discloses a strain of streptomyces varioti with an arsenic oxidation function and application of the strain of streptomyces varioti in soil remediation, and particularly discloses a strain of streptomyces varioti B3. According to the invention, a strain of microalgae B3 with an arsenic oxidation function is obtained through separation, and the microalgae strain belongs to Desmodesmus and can oxidize As (III) under the condition of day and night alternation. And determining the arsenic form in the flooded soil solution by adopting a liquid chromatography-atomic fluorescence combination instrument. Arsenic form analysis shows that As (III) is oxidized into As (V), the concentration of As (III) and total arsenic in soil pore water is reduced, it is indicated that under the waterflooding condition, the streptozotoci variabilis B3 can effectively oxidize As (III), remove total arsenic in a soil solution and reduce the bioavailability of arsenic, and the streptozotoci variabilis B3 plays an important role in the aspect of repairing arsenic-polluted soil.

Ocean wind power-microalgae culture integrated device and method

Resumen de: CN119825627A

The invention relates to the technical field of ocean renewable energy sources and biological resources, in particular to an ocean wind power-microalgae cultivation integrated device and method.The device comprises a vertical axis fan, a microalgae cultivation buoyancy tank and a storage cargo hold; the vertical axis fan comprises a wind power driving unit and a power generation unit; the wind power driving unit is vertically driven on the power generation unit; the cargo storage cabin is arranged on the power generation unit; the power generation unit is fixed on the microalgae culture buoyancy tank through a support frame; the microalgae cultivation buoyancy tank comprises a tank body, and the conveying end of the microalgae cultivation unit is connected to the storage cargo hold through the tank body; the light source unit is distributed at the bottom of the microalgae culture unit, the vertical axis fan is combined for wind power generation, and rich wind energy resources of the ocean are effectively utilized. Meanwhile, the electricity generated by power generation is used for microalgae cultivation, and multi-stage utilization of energy is achieved.

Microalgae culture device

Resumen de: CN119823852A

The invention belongs to the technical field of microalgae culture, and particularly relates to a microalgae culture device which comprises a transparent culture tank and a lifting mechanism, a mounting frame is mounted at the upper end of the lifting mechanism, a culture cover is mounted at the lower end of the mounting frame, the mounting frame is connected with a gas conveying pipe in a penetrating manner, and a rotating pipe hermetically connected with the gas conveying pipe is rotatably mounted at the lower end of the mounting frame; a plurality of one-way air outlets are formed in the rotating pipe; a meshing groove is formed in the peripheral side of the rotating pipe, a first gear is rotationally connected to the upper side of the interior of the triangular frame, the light transmitting part is installed at the lower end of the installation shaft, and a light supplementing lamp is installed on the peripheral side of the transparent culture tank. Meanwhile, the light-transmitting part is driven to rotate to further refract an external light source through the light-transmitting part, so that the influence on photosynthesis due to different light source contact effects of a solution in the microalgae and a solution on the outer side is avoided.

Biological method for synergistically fixing methane and carbon dioxide

Resumen de: CN119793187A

The invention provides a biological method for synergistically immobilizing methane and carbon dioxide, which comprises the following steps: mixing activated sludge with microalgae, continuously introducing gas, and forming an algal-bacterial symbiont under the condition of continuous illumination; the method comprises the following steps: putting the algal-bacterial symbiont into a reactor, pumping sewage, introducing gas, and carrying out periodic operation according to a water feeding-aeration-precipitation-drainage mode; wherein the gas comprises methane and carbon dioxide, and the sewage comprises a carbon source, a nitrogen source and a phosphorus source. According to the method, the bacteria-algae particles can be obtained through culture, and the bacteria-algae particles can provide electrons for denitrification by using the soluble methane as an electron donor, so that the purposes of synchronously removing the soluble methane and denitrifying are achieved, and the denitrification process is optimized. The bacteria-algae particles can also realize fixation of methane and carbon dioxide, the sewage treatment process is optimized, and the problems that soluble methane is difficult to remove and carbon emission is high in the existing sewage treatment process are solved.

Photobioreactor system applicable to pollutant treatment and carbon sequestration

Resumen de: CN119799447A

The invention discloses a photobioreactor system suitable for pollutant treatment and carbon sequestration, and relates to the technical field of pollutant treatment equipment.According to the photobioreactor system, microalgae is utilized for pollutant treatment and carbon sequestration, and a plurality of longitudinally-arranged cylindrical containers are connected in parallel; a plurality of lamp posts are arranged outside cylindrical containers, a disc-shaped scraper blade is arranged in each cylindrical container, and the disc-shaped scraper blades in all the cylindrical containers are driven by magnetic force to be tightly attached to the pipe wall and move up and down in a unified mode. In the moving process of the disc-shaped scraping plate, the effects of stirring algae liquid and dispersing gas are achieved at the same time; the technical effects that the interference of the external environment on the photobioreactor system is small, the cleaning of the adherent microalgae can be conveniently and efficiently completed, the carbon sequestration effect is good, the algae liquid stirring efficiency is high, the damage to the microalgae is small when the algae liquid is stirred, the structure is relatively simple, and the cost is relatively low are achieved.

Method for regulating and controlling key genes to improve high-temperature resistance and stress resistance of carbon sequestration microalgae

Resumen de: CN119799497A

The invention relates to a microalgae carbon sequestration technology, and aims to provide a method for regulating and controlling a key gene to improve high-temperature resistance and stress resistance of carbon sequestration microalgae. Comprising the following steps: regulating and controlling the expression quantity of four key genes in microalgae cells by performing temperature gradient domestication on the microalgae cells; the final temperature condition of the domestication culture is 42 DEG C, so that the expression quantity of each key gene is increased to several times of the original expression quantity; and (2) carrying out transfer culture on the domesticated microalgae strain, and verifying the genetic stability of the high temperature resistance of the microalgae strain. According to the invention, the adaptability of the microalgae to high-temperature stress can be enhanced, the biomass production efficiency of the microalgae in a high-temperature environment is improved, and the method has important application value in the fields of biological energy production, environmental restoration and the like; as the microalgae can well grow in high-temperature environments such as high-temperature regions and desert arid zones, the large-scale application of the microalgae carbon sequestration technology in the recovery and treatment of the carbon dioxide in the flue gas of the power plant in the high-temperature regions can be expanded.

Preparation method and application of microalgae feed

Resumen de: CN119791212A

The invention relates to the technical field of microalgae feed, and discloses a preparation method and application of microalgae feed, and the preparation method comprises the following steps: S1, extracting hawthorn flavone; s2, extraction of maca unsaturated fatty acid; s3, extracting beta-glucan from the oat bran; s4, extracting pinellia ternate agglutinin; s5, screening of excellent chlorella; according to the preparation method and application of the microalgae feed, the chlorella which is not reported by public literatures is screened out, substances such as pinellia ternate agglutinin extracted from pinellia ternate, beta-glucan extracted from oat bran, flavone extracted from hawthorn, unsaturated fatty acid extracted from maca and the like are combined to serve as a culture medium for culturing the chlorella, an original BG-11 culture medium is replaced, and the microalgae feed is prepared. The chlorella breeding rate is increased; the cultured composite microalgae liquid is used as a liquid feed for livestock and poultry, and compared with a common chlorella feed, the composite microalgae feed can more quickly eliminate toxins such as heavy metals in animal bodies; the weight of animals can be increased, the protein content of meat can be increased, and the fat content can be reduced.

Overflow type microalgae photobioreactor based on efficient utilization of light energy

Resumen de: CN119799446A

The invention relates to the technical field of photobioreactors, and discloses an overflow type microalgae photobioreactor based on efficient utilization of light energy, the reactor comprises a container assembly, a circulation assembly and a gas supply assembly, the container assembly comprises an outer container and an inner container arranged in an inner cavity of the outer container; the circulating assembly is arranged between the outer container and the inner container and comprises a circulating pipe, a circulating pump connected into the circulating pipe and a spray head group connected with the circulating pipe and extending into the inner container; the output end of the air supply assembly extends into the inner container; according to the overflow type microalgae photobioreactor, the adverse effect of uneven light energy distribution in the reactor on the growth of microalgae cells can be reduced through structural innovation of the reactor, so that the light receiving condition of the microalgae cells in the reactor is improved, and the yield of microalgae biomass and the fixed amount of CO2 are greatly increased.

Curtain wall type microalgae culture device for pollutant treatment and carbon sequestration

Resumen de: CN119799444A

The invention discloses a curtain wall type microalgae culture device for pollutant treatment and carbon sequestration, and relates to the technical field of pollutant treatment.The curtain wall type microalgae culture device is characterized in that a box fixed to a wall is used as a reaction container, and an outer cleaning assembly similar to a hanging basket in the lifting and moving process is used for cleaning the outer wall of the box; the inner cleaning assemblies located in the box body are driven by magnetic force to be attached to the inner wall of the box body to scrape off wall-attached microalgae, and a driving assembly does not need to be arranged for each inner cleaning assembly; the inner cleaning assembly plays a role in stirring the culture solution in the moving process; the microalgae culture device has the technical effects that the microalgae culture device is small in occupied area, high in integration, less in interference of external environment, capable of conveniently and efficiently cleaning the adherent microalgae, adjustable in adherent microalgae cleaning strength and relatively low in manufacturing and maintenance cost.

Omnibearing nutrition fortified food and preparation method thereof

Resumen de: CN119791291A

The invention belongs to the field of food, and provides an all-round nutrition fortified food and a preparation method thereof, the food comprises the following raw materials in parts by weight: 10-30 parts of protein complex, 5-12 parts of lipid composition, 30-60 parts of compound carbohydrate, 4-10 parts of dietary fiber enhancer, 0.5-5 parts of customized vitamin group, and 1-10 parts of mineral chelate. 0.1 to 2 parts of a probiotic and prebiotic compound, and 0.01 to 0.5 part of an antioxidant; through combination of novel protein sources such as microalgae protein and insect protein and high-quality lipids such as linseed oil and algae oil, a more comprehensive and balanced nutrition ratio is provided, the nutritional requirements of special crowds are particularly met, and compared with traditional food, the provided nutritional value is higher; by means of mineral substances in the form of amino acid chelate or organic acid salt and addition of probiotics and prebiotics, absorption and utilization of nutritional ingredients are promoted, and the biological value of food is improved.

Material proportioning and conveying device for microalgae carbon sequestration equipment

Resumen de: CN119799448A

The invention discloses a material proportioning and conveying device for microalgae carbon sequestration equipment, and relates to the field of microalgae culture. A material proportioning and conveying device for microalgae carbon sequestration equipment comprises a material conveying pipe, a water conveying cavity, a water spraying opening, a mixing cavity and a negative pressure cavity, the water conveying cavity, the water spraying opening, the mixing cavity and the negative pressure cavity are formed in the material conveying pipe, the water conveying cavity is communicated with the water spraying opening, and the caliber of the water spraying opening is smaller than that of the water conveying cavity; according to the device, powder and water are mixed more immediately and efficiently in the conveying process, after being sucked into the mixing cavity, the powder can be immediately mixed with high-speed water flow and continuously subjected to disturbance and shearing effects of the water flow in the process of conveying the powder to the microalgae carbon sequestration equipment, dissolution and uniform dispersion of the powder are promoted, and meanwhile, the powder can be uniformly dispersed in the microalgae carbon sequestration equipment. The mixing state of the nutrient solution is continuously optimized in the conveying process, it is guaranteed that the microalgae can receive the nutrient solution uniform in component and stable in quality, and the growth effic

COMPOSITION OF ISOLATED MICROORGANISMS AND USE THEREOF

Resumen de: WO2025073754A1

In a first aspect, the present invention relates to a composition of isolated microorganisms, wherein said microorganisms are in the form of viable microorganisms of at least the following genera: Microcoleus, Nostoc, Scytonema, Klebsormidium. This means that the mixture comprises at least cyanobacteria and a microalgae, preferably as a mixture with another microalgae. In a further aspect, the invention relates to a method for improving soils, comprising applying the composition of isolated microorganisms according to the invention to the soil. In particular, the invention relates to a method for improving the soil crust. Lastly, the present invention relates to the use of the composition of isolated microorganisms according to the invention for the improvement of soils, in particular for the (re)formation and improvement of soil crusts.

INTEGRATED ALGAL AND CYANOBACTERIAL PROCESS FOR BIOPRODUCT MANUFACTURING

Resumen de: US2025115835A1

A bioproduct manufacturing system is disclosed. The system comprises a hollow-fiber primary membrane gas absorber comprising a shell side and a lumen, wherein the primary membrane gas absorber is configured to receive a carbonate salt-based solvent on the shell side and a gas mixture comprising oxygen, nitrogen, and carbon dioxide in the lumen, at least one runway algal cassette reactor-photobioreactor, and a growth medium circulating between the primary membrane gas absorber and the at least one runway algal cassette reactor-photobioreactor. The at least one runway algal cassette reactor-photobioreactor comprises at least one growth chamber coupled to and in fluid communication with a headspace channel so as to define an interior volume, a first condenser coupled to and in fluid communication with the headspace channel, and a harvest line in fluid communication with the at least one growth chamber and coupled to a filter.

CYNOBACTERIA CULTIVATION, SEDIMENTATION, AND UTILIZATION

Resumen de: US2025115501A1

The present invention is related to the fields of bioplastics. In particular, a strain of photosynthetic cyanobacteria (i.e. blue-green algae) having a high growth rate was engineered to overexpress limonene synthase. These engineered cyanobacteria improve auto-sedimentation for biomass harvest and provide for plastic bioremediation capture. Further, machine-learning methods are provided for improving some of the aspects of cultivating cyanobacteria including, but not limited to, assessing real-time light availability and predicting real-time algae growth rates to increase a cyanobacteria biomass.

METHOD FOR PRODUCING MICROALGAE CONCENTRATES WITH LOW VISCOSITY

Resumen de: EP4534644A1

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.

EXPLOITATION OF WINE PROCESSING WASTE BY MEANS OF INTEGRATED BIOLOGICAL PROCESSES OF ANAEROBIC DIGESTION AND MICROALGAE CULTURE

Resumen de: WO2023233305A1

The present invention discloses a process mode of microalgal cultivation in semi- continuous on wine wastewater with no need to recirculate the microalgal biomass in the reactor, without dilution and sterilisation of the effluent applied as a growth medium. The process was experimentally carried out by semi-continuously applying, without recirculation of the biomass, the cultivation of Chlorella vulgaris on the digestate from the anaerobic co-digestion of winemaking lees and waste activated sludge. The integrated anaerobic digestion-microalgae treatment process is advantageous from a circular economy perspective as it leads to the exploitation of grape processing chain waste, eliminating the economic burden on producers and involving: i) the phyto-depuration of the effluent, ii) the production of bio- methane and iii) the production of biomass containing high value-added by-products (lipids, proteins and starch) that can be used to produce biodiesel, animal feed, nutraceuticals/pharmaceuticals and for producing bioplastics.

A COMPACT MANNER OF GROWING MICROALGAE SUITABLE FOR CARBON SEQUESTRATION AND CREATING A CIRCULAR ECONOMY

Resumen de: AU2023279503A1

There are closed systems of growing microalgae but as they are not able to produce algal biomass economically they are very few and far between and are only used to grow microalgae for very expensive produce. These closed systems also require large space. The result of the lack of economic closed systems is why almost all algal biomass production currently uses raceway ponds. This invention integrates a new compact, very economic and highly productive closed system of growing microalgae including good parameter control with carbon sequestration from say a coal fired power plant or organic waste management in a way that makes the whole process financially attractive and cyclic and if desired it could be made carbon negative. The compact nature of this invention allows algal farms to be sited next to most sources of carbon dioxide.

MODIFIED PROMOTER, EXPRESSION VECTOR, MICROORGANISM, PRODUCTION METHOD FOR SUBSTANCE, MODIFIED CYANOBACTERIA, AND MANUFACTURING METHOD FOR MODIFIED PROMOTER

Resumen de: EP4534667A1

The present disclosure provides a modified promoter with which the amount of expression of a protein-coding gene can be controlled with flexibility. The modified promoter according to the present disclosure is a modified promoter including a base sequence (SEQ ID NO: 1) located upstream of a start codon of a slr1841 gene, the base sequence consisting of 348 bases, or a base sequence having 80% or more homology with the base sequence represented by SEQ ID NO: 1, the base sequence being modified by at least one selected from the group consisting of (i) replacement of one or more bases included in the base sequence with another base, (ii) deletion of one or more bases included in the base sequence, and (iii) insertion of one or more bases into the base sequence.

Efficient carbon-sequestration cyanobacteria mutant strain as well as preparation method and application thereof

Resumen de: CN119776240A

The invention belongs to the technical field of biological culture, and particularly relates to an efficient carbon-sequestration cyanobacteria mutant strain as well as a preparation method and application thereof. The preparation method of the high-efficiency carbon-sequestration cyanobacteria mutant strain comprises the following steps: inoculating an improved BG11 culture medium with a synechococcus slender PCC 7942 algae solution, introducing air with the CO2 concentration of 10-20% into the synechococcus slender PCC 7942 algae solution, carrying out continuous illumination at a culture temperature of 30-35 DEG C for evolution for 3-5 cycles, culturing for 5-10 days in each cycle, and when each cycle begins, culturing the synechococcus slender PCC 7942 algae solution with the CO2 concentration of 10-20% in the improved BG11 culture medium to obtain the high-efficiency carbon-sequestration cyanobacteria mutant strain. And adjusting the algae liquid concentration of the synechococcus slender PCC 7942 to the initial inoculation concentration, and obtaining the high-efficiency carbon-sequestration cyanobacteria mutant strain after evolution is finished. The high-efficiency carbon-sequestration cyanobacteria mutant strain obtained by the invention has relatively high growth rate and biological accumulation amount, and can improve the content of high-added-value products such as lipid and protein while realizing high-efficiency carbon sequestration.

Microalgae photobioreactor coupled with light guide plate and microporous pipe

Resumen de: CN119776109A

The present invention relates to the technical field of microalgae photobioreactors, and discloses a light guide plate and microporous pipe coupled microalgae photobioreactor, the reactor comprises: a device body unit, which comprises a reactor body, a light guide plate assembly embedded in the side wall of the reactor body, and a hollow microporous pipe assembly; the light source is cooperatively arranged at the end part of the light guide plate assembly; the light guide plate assembly comprises a plurality of sets of light guide plates distributed in parallel, and the ends of the adjacent light guide plates are staggered. One end of the light guide plate extends out of the reactor body and forms an incident end; a flow channel is formed between each light guide plate and the wall surface of the inner cavity of the reactor body; the photobioreactor with a novel structure is designed, the light guide plate with excellent light transmission performance and the hollow microporous pipe are introduced into the culture of the haematococcus pluvialis, and on the premise that the occupied area of the reactor is not increased, the culture operation of the haematococcus pluvialis is simpler and more convenient and the culture operation is efficient through the integrated structure; and the cost is low.

Algae membrane reactor, decontamination optimization method, online monitoring method and related equipment

Resumen de: CN119774770A

The invention relates to the technical field of wastewater treatment, and discloses an algae membrane reactor, a decontamination optimization method, an online monitoring method and related equipment.The MAR reactor comprises an aeration system, an illumination system, a microalgae culture system, a membrane separation system, a water production tank, an algae production tank, a water pump and an intelligent control system; the method comprises the following steps: adding a pure microalgae stock solution through an adding pump, aerating and oxygenating through an air blower, stirring an algae-water mixed solution, enabling the amplified algae-water mixed solution to enter a membrane pool, pumping water by a backwashing pump, recycling the water or returning the water to a front-end advanced treatment unit, enabling a concentrated solution of algae to enter an algae box, centrifugally concentrating, storing and transporting as feed; microalgae species capable of efficiently removing specific pollutants in water are directionally cultivated according to production wastewater with different water quality characteristics, and intelligent operation of comprehensively assisting food industry wastewater treatment is achieved through construction of the self-control integrated algae membrane reactor and construction of the cloud management platform.

Application of cadmium selenide in microalgae culture

Resumen de: CN119776252A

The invention relates to application of cadmium selenide in microalgae culture and a method for culturing microalgae, which comprises the step of adding cadmium selenide into a culture system. According to the method, cadmium selenide (CdSe) is added into a microalgae culture system to obtain a CdSe-cyanobacteria hybrid, so that the growth speed and the photosynthetic activity of microalgae are improved. The practice of the invention creates a new path for breaking through the inherent bottleneck of a microalgae natural photosynthetic system and improving the photosynthetic carbon sequestration efficiency.

LED spectrum photobioreactor system for microalgae cultivation

Resumen de: CN119776115A

The invention belongs to a photobioreactor in the field of bioengineering, and particularly relates to a photobioreactor system with novel LED spectrum design for microalgae cultivation. Which comprises a reaction tank (used for containing algae liquid and assembling a special spectrum light source transparent pipeline and related equipment), a special spectrum light source transparent pipeline combination acting on a reaction system, and an automatic transparent pipeline cleaning device, and is characterized in that a multi-spectrum light source combination lamp strip is placed in the special spectrum light source transparent pipeline; the multi-spectrum light source combined lamp strip comprises a main light source and an auxiliary light source, and the continuous spectrum design parameters of the main light source are as follows: the peak wavelength is 465-495 nm, the main wavelength is 510-535 nm, and the continuous spectrum range is 380-780 nm; according to the continuous spectrum design of the auxiliary light source, the light absorption peak of the microalgae is used as the peak wavelength, multiple continuous spectrums are formed, and the spectrum range is 380 nm to 780 nm. According to the invention, the problem of spectrum design defects of indoor artificial light culture of microalgae and the problem of wall adhesion of microalgae in a transparent pipeline of a special spectrum light source are solved, the photosynthesis efficiency of microalgae is improved, and th

Preparation method and application of phycomycete compound

Resumen de: CN119774769A

The invention relates to the technical field of water treatment, in particular to a preparation method and application of a phycomycete compound. The phycomycete compound is applied to nitrogen and phosphorus removal and surface water treatment. Wherein the chlorella vulgaris and the quadruplex obliquus have strong reproductive capacity and strong adaptive capacity to environment, and absorb various elements such as carbon, nitrogen and phosphorus from water through autotrophy, heterotrophy and polyculture growth; activated sludge containing bacteroides and pseudomonas can degrade complex organic compounds, has metabolic capabilities such as heterotrophic denitrification and the like, and is beneficial to forming a co-culture system with microalgae in the initial culture stage; and nitrifying and denitrifying bacteria are compounded to consolidate the nitrogen removal environment order, so that the water body is effectively purified and the water color is good. The phycomycete compound obtained by the invention not only can be suitable for high-nitrogen simulation wastewater of a laboratory, but also can be applied to in-situ treatment of an actual river channel, has remarkable environmental benefits and has a wide application prospect.

Microalgae closed mixotrophic culture method and culture system thereof

Resumen de: CN119776113A

The invention discloses a microalgae closed mixotrophic culture method and a culture system thereof, and relates to the field of microalgae culture, and the method comprises the following steps: step 1, microalgae culture: pouring a culture solution into a culture tank, adding microalgae to be cultured into the culture solution, then fixing a sealing plate at a tank opening of the culture tank through bolts, and carrying out closed culture; step 2, air supply and nutrient solution addition: carbon dioxide is fed into an air distribution pipe through a pipeline by an air pump in an air supply assembly, bubbles are formed from a spray head and are conveyed into a nutrient solution, and part of rising bubbles are gathered by a baffle plate to prolong the retention time of the bubbles in a water body; the first electric telescopic rod drives the arc-shaped telescopic plate to move downwards, the transparent culture tank inside the arc-shaped telescopic plate is exposed, sunlight provides a light source to breed microalgae, the retention time of carbon dioxide in the water body can be prolonged, the utilization rate of carbon dioxide is increased, and the yield of microalgae is increased.

Efficient microalgae cultivation device of circulating water system

Resumen de: CN119776107A

The invention relates to the technical field of microalgae cultivation, in particular to an efficient microalgae cultivation device of a circulating water system, which comprises an electro-catalytic reactor used for treating harmful substances in cultivation tail water and a cultivation raceway pond used for enlarging cultivation of microalgae, a biological treatment unit used for preliminary cultivation of microalgae is arranged on one side of the electro-catalytic reactor, the biological treatment unit comprises a bioreactor I, a bioreactor II and a bioreactor III which are arranged in sequence; the section of the bioreactor I is conical, and the bioreactor I is made of plastic. According to the method, harmful substances in the breeding wastewater can be degraded, then the degraded tail water is used for culturing microalgae, then cyclic utilization of nutrient substances is achieved, the breeding water quality can be stabilized, closed-loop circulation of the breeding water can be formed, and the situation that due to the fact that the types of pollutants in the breeding tail water are complex, the breeding water cannot be recycled is avoided. The tolerance of the microalgae to high-concentration harmful substances is limited, so that the normal growth and the purification efficiency of the microalgae are influenced.

Application of carbon nitride in microalgae culture

Resumen de: CN119752763A

The invention relates to application of carbon nitride in microalgae culture and a method for culturing microalgae, which comprises the step of adding carbon nitride into a culture system. According to the method, the graphite phase carbon nitride (g-C3N4) material is added into a microalgae culture system to obtain the g-C3N4-microalgae hybrid, so that the growth speed of microalgae and the accumulation speed of biomass are increased, and the yield of target metabolites in microalgae can also be increased. The practice of the invention creates a new path for breaking through the inherent bottleneck of the natural photosynthetic system of cyanobacteria and improving the photosynthetic carbon sequestration efficiency.

Culture method of microalgae with high starch content

Resumen de: CN119752634A

The invention discloses a culture method of microalgae with high starch content, and belongs to the technical field of new food resource mining. Microalgae are cultured in two stages, the ventilation capacity is fixed in the first stage, the ventilation capacity is dynamically adjusted in the second stage, the ventilation capacity in the early stage of culture is 0.75-1.5 L/min, the ventilation capacity is adjusted to 3-6 L/min when the microalgae start to grow in the exponential stage, and the ventilation capacity is adjusted to 0.75-1.5 L/min when the microalgae start to grow in the later stage of the exponential stage until culture is finished. The high-efficiency culture of the microalgae with high starch content is realized by dynamically adjusting the ventilatory capacity of the second culture stage, so that the microalgae cell powder with high starch content is obtained, and the maximum starch content can reach 61% or above. The method has the advantages of short required culture period, simplicity and convenience, no pollution to the environment in the culture process, and important significance for expanding the microalgae as a new resource food and expanding a new starch resource.

Regenerated gas recycling system

Resumen de: CN119746618A

The invention provides a regeneration gas recycling system, which comprises a regeneration gas separator, a regeneration tower, a regeneration tower, a regeneration tower and a regeneration tower, an inlet of the water collecting tank is connected with a liquid outlet of the regenerated gas separator; an inlet of the gas storage tank is connected with a gas outlet of the regenerated gas separator; the microalgae culture tank is used for culturing microalgae; a nutrient solution is stored in the nutrient solution circulating assembly, an outlet of the moisture collecting tank is connected with an inlet of the nutrient solution circulating assembly, and an outlet of the nutrient solution circulating assembly is connected with a liquid inlet of the microalgae culture tank; an outlet of the gas storage tank is connected with an inlet of the carbon dioxide injection assembly, and an outlet of the carbon dioxide injection assembly is connected with a carbon dioxide inlet of the microalgae culture tank, so that the problem that in the carbon capture process in the prior art, water and carbon dioxide in treated exhaust gas are generally discharged together is solved.

Antibacterial peptide and application thereof in juvenile mollusk culture

Resumen de: CN119751617A

The invention provides an antibacterial peptide and application thereof in juvenile mollusk culture. The amino acid sequence of the provided antibacterial peptide is SEQ ID NO: 2. The antibacterial peptide obtained through screening comes from bivalve shellfish, has small toxic and side effects on the bivalve shellfish, is suitable for playing a role in the bivalve shellfish, and has specificity and pertinence on bivalve shellfish culture water pathogenic bacteria. The amino acid sequence of the provided antibacterial peptide is optimized, the antibacterial activity is high, the stability is high, and the expression efficiency in yeast is high. After high expression of the antibacterial peptide, the microcapsule of which the particle size is suitable for filter feeding of the juvenile mollusks is prepared, so that the problem that the juvenile mollusks cannot feed due to direct splashing to culture water in the prior art is solved, and the problems of low microalgae expression efficiency and low antibacterial peptide content are solved.

Efficient resourceful treatment method for microalgae

Resumen de: CN119750795A

The invention discloses an efficient microalgae resourceful treatment method which comprises the following steps: inoculating a microalgae concentrated solution with the dry weight of more than 30mg/L into wastewater to be treated, then respectively adding nano zero-valent iron suspensions with different concentrations at different physiological stages of microalgae, culturing for 14 days to obtain a microalgae culture solution, detecting the indexes of COD, NH4 < + >-N and PO4 < 3->-P in the microalgae culture solution, and determining the content of the microalgae in the wastewater to be treated according to the indexes of COD, NH4 < + >-N and PO4 < 3->-P in the microalgae culture solution. The method comprises the following steps: standing a microalgae culture solution for 9 hours, carrying out self-flocculation settling on microalgae, carrying out centrifugal treatment on the microalgae culture solution subjected to self-flocculation settling, filtering, carrying out freeze drying to obtain microalgae powder, and extracting the microalgae grease by adopting a chloroform-methanol method. According to the method, nano zero-valent iron with different concentrations is added in different growth stages of the microalgae, so that the performance of removing nutrient substances in the wastewater by the microalgae is enhanced, and meanwhile, the flocculation capacity of the microalgae and the accumulation of grease content are promoted.

Method for expressing bacteriophage lyase by using chlorella vulgaris

Resumen de: CN119752635A

The invention discloses a method and an expression system for expressing bacteriophage lyase by using chlorella vulgaris. The microalgae vector takes chlorella vulgaris as an expression vector, and recombinant plasmids are electrically transferred into cell nucleus genes of the chlorella vulgaris. The method is simple, safe and low in cost. The carrier is high in microalgae system conversion rate, and the expressed lyase has good activity to bacteria. The chlorella vulgaris is an edible alga, and has a wide prospect in the subsequent application of oral administration or perfusion. Meanwhile, the fluorescence imaging performance of the microalgae system is outstanding, and possibility is provided for non-invasive tracking and real-time monitoring of the lyase in vivo. The unique characteristics of chlorella vulgaris are utilized, and a feasible thought and method are provided for efficient expression of the lyase.

Method for promoting chlamydomonas reinhardtii selenoprotein gene expression and increasing selenoprotein yield

Resumen de: CN119752633A

The invention discloses a method for promoting expression of a chlamydomonas reinhardtii selenoprotein gene and increasing the yield of selenoprotein. The method comprises the following steps: S1, inoculating a chlamydomonas reinhardtii algal species into a liquid culture medium, and carrying out shake culture under the illumination conditions of 20-30 DEG C and 0-200 mu mol/(m < 2 >. S) until a growth delay period to a stable period to obtain a chlamydomonas reinhardtii culture solution; s2, the chlamydomonas reinhardtii culture solution is taken, sodium selenite and abscisic acid are added, the concentration of the abscisic acid in the culture solution is 10-1000 mu mol/L, and shaking culture is conducted under the illumination conditions of 20-30 DEG C and 0-200 mu mol/(m < 2 >. S). The plant hormone ABA is added in the chlamydomonas reinhardtii selenium-rich culture process, microalgae growth and biomass accumulation are not affected, expression of selenoprotein can be promoted, and when the method is applied to production of selenoprotein-rich chlamydomonas reinhardtii powder, the selenoprotein yield can be greatly increased.

Composite algae cell as well as preparation method and application thereof

Resumen de: CN119751129A

The invention belongs to the technical field of organic fertilizers, and particularly relates to a composite algae cell as well as a preparation method and application thereof. According to the preparation method disclosed by the invention, the stable algae cell with the nanoparticle layer is obtained by co-incubation of the positively charged amino-modified nanoparticles and the algae cell; and mixing and emulsifying a tannic acid aqueous solution and the algae cells with the nano-particle layers to obtain nano-particle algae cells containing lipid membrane layers, culturing under illumination, and carrying out photosynthesis to obtain the composite algae cells with the inner cores carrying oxygen. In addition, the lipid membrane can carry pesticide and other substances, and the antibacterial ability of the composite algae cells obtained by the method is greatly improved; fertilization is conducted in an ultrasonic atomization delivery mode, the mass transfer efficiency of microalgae fertilizer to leaf surfaces is improved, and the fertilizer utilization rate is remarkably increased.

EXTRACELLULAR VESICLES FROM GENETICALLY-MODIFIED MICROALGAE CONTAINING ENDOGENOUSLY-LOADED CARGO, THEIR PREPARATION, AND USES

Resumen de: US2025108080A1

Provided are compositions containing extracellular vesicles (MEVs) produced in and isolated from genetically-engineered microalgae, which encode cargo, such as nucleic acids and polypeptides. The MEVs are endogenously loaded by the microalgae with the cargo. The MEVs have a variety of applications as a delivery system for therapeutics, including vaccines, anti-cancer therapeutics, diagnostics, and other such uses. The fate of MEVs upon administration depends upon the route of administration.

Continuous Flow Reactor for Conversion of Wastewater to Biohydrogen Using Activated Sludge and Microalgae

Resumen de: US2025109414A1

Apparatus 101 for producing a continuous stream of biohydrogen includes a continuous flow stirred tank reactor (CSTR) 12, lighting arrangement 13; ports 14; peristaltic pumps 16; and gas chromatograph (GC) 18. The CSTR 12 includes internal bioreactor chamber 20; a photosynthesizing microorganism inlet stream 22.1 for delivering Chlorella vulgaris; an organic waste inlet stream 22.2 for delivering wastewater activated sludge (WWAS); and a nutrient inlet stream 22.3 for delivering nutrients into the chamber 20; an outlet stream 24; and stirrers for stirring the contents of the chamber. The lighting 13 is provided by lamps 26 for transmitting light through a transparent sidewall of the chamber 20. The ports 14 and CG 18 are for taking measurements from the chamber 20. The pumps 16 control flowrate of the streams 22.1, 22.2, 22.3 and 24 for regulating biohydrogen production from fermentation while Chlorella vulgaris consumes oxygen to avoid biohydrogen conversion into methane.

COMPOSITION FOR MAINTAINING OR INCREASING FIBROUS STRUCTURAL PROTEIN

Resumen de: WO2025070726A1

The purpose of the present invention is to provide a preparation that is effective for maintaining or increasing a hair fibrous structural protein. Provided are a composition for maintaining or increasing a fibrous structural protein, a composition for maintaining or increasing skin elasticity, a composition for improving hair quality, and a composition for promoting the production of collagen, elastin, or hyaluronic acid, wherein each of the compositions contains a culture supernatant of microalgae and/or extracellular vesicles of microalgae.

A METHOD FOR PREPARING AND SELECTING A POLYMERIC FLOCCULANT FOR USE IN HARVESTING MICROALGAE

Resumen de: AU2023350703A1

The present invention relates to a method for harvesting microalgae, the method comprising (i) mixing one or more monomers, a photoinitiator, water and a deoxygenation system to form a mixture; (ii) exposing the mixture to UV light so as to form an aqueous solution of one or more polymers; (iii) introducing the aqueous solution of one or more polymers to a suspension comprising microalgae in an amount sufficient to produce flocculated microalgae; and (iv) harvesting the flocculated microalgae. The present invention also relates to a method for preparing and selecting a polymeric flocculant for use in harvesting microalgae and a related apparatus.

NOVEL METHOD OF PRODUCING AN ALGAE COMPOSITION

Resumen de: MX2025000775A

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.

Intelligent regulation and control ceramic membrane microalgae recovery system and method

Resumen de: CN119736144A

The invention relates to an intelligent regulation and control ceramic membrane microalgae recovery system and method. The invention relates to the technical field of microalgae recovery, which comprises the following steps: inoculating a target microalgae variety in a microalgae culture pond, and setting proper initial culture conditions such as temperature, illumination intensity and nutrient substance addition amount according to the growth characteristics of microalgae; various parameters in the microalgae culture pond are monitored in real time through the intelligent monitoring module; according to monitoring data, the ceramic membrane filtering unit is controlled through the feedback control unit, the filtering performance of a culture solution is improved, and the stability of membrane flux is maintained. Compared with a traditional ceramic membrane recovery method, the method has the advantages that the microalgae recovery efficiency is remarkably improved by 30% or above, the membrane pollution degree is reduced by 40% or above, the economic benefits and environmental benefits of microalgae recovery are greatly improved, and a solid foundation is laid for large-scale industrial development and utilization of microalgae resources.

High-concentration microalgae fresh-keeping method based on gel

Resumen de: CN119736165A

According to the high-concentration microalgae fresh-keeping method based on the gel, sodium alginate and agar are dissolved to form hydrogel, then microalgae cells and carrageenan are added for 3D printing and cross-linking solidification, the printable solid content of the sodium alginate gel is reduced through the microalgae hydrogel formula, the activity and biomass of microalgae are effectively preserved, and the microalgae fresh-keeping effect is improved. The microalgae breeding and transportation are further ensured not to be influenced by seasons.

Microalgae balcony small-sized culture equipment

Resumen de: CN222700286U

The utility model relates to the technical field of spirulina cultivation, in particular to small balcony microalgae cultivation equipment. The barrel type bioreactor is used as a spirulina culture container and has the advantages of being large in volume, convenient to clean, simple to install, low in manufacturing cost and the like, only an air blower is used for aeration in the spirulina growth process, the spirulina growth is not affected, meanwhile, a multi-barrel parallel connection mode is adopted, the yield of fresh spirulina is increased, and the cost is reduced. The fresh food requirements of small families can be basically met. The device comprises an intelligent electric cabinet, a special light supplementing lamp, a bioreactor and the like, the output end of the intelligent electric control box is connected with five special light supplementing lamps, and a bioreactor is arranged between every two special light supplementing lamps. According to the utility model, the barrel-type bioreactor is used as a spirulina culture container, only an air blower is used for aeration in the spirulina growth process, and meanwhile, a multi-barrel parallel connection mode is adopted, so that the total capacity of the bioreactor reaches 100-120L, and 60-80g of fresh algae can be produced every day.

Application of high-temperature-resistant and high-light cyanobacteria in preparation of biological photovoltaic device and biological photovoltaic device prepared from high-temperature-resistant and high-light cyanobacteria

Resumen de: CN119736227A

The invention relates to application of high-temperature-resistant and high-light cyanobacteria in preparation of a biological photovoltaic device, the high-temperature-resistant and high-light cyanobacteria is synechococcus PCC 7942 obtained by introducing C252Y mutation on an ATP synthase alpha subunit, and the reference sequence of the ATP synthase alpha subunit is shown as SEQ ID NO: 1. According to the invention, a high-tolerance mutant strain HL7942 is used as a photoelectric conversion core element, so that a biological membrane cathode is formed on a substrate, a biological photovoltaic device can stably carry out light energy conversion output under the condition of high temperature and high light (2400 mu mol photons m <-2 > s <-1 >, 35 DEG C), and the light current output level is increased by 2.54 times compared with that of an early-stage device. Chitosan is used for packaging a biological membrane electrode, so that a biological membrane is stably attached to a substrate while the photosynthetic activity is maintained, the photocurrent output density of the device is improved, and the stable output period of the device is prolonged.

Integrated device based on microalgae culture harvesting and water circulation

Resumen de: CN222684635U

The utility model discloses an integrated device based on microalgae culture harvesting and water circulation, which comprises a microalgae culture tank, a microalgae temporary storage tank and a microalgae harvesting tank, the microalgae culture tank is fixedly arranged below the microalgae temporary storage tank, the microalgae harvesting tank is fixedly arranged on one side of the microalgae culture tank, and the microalgae harvesting tank is fixedly arranged on the other side of the microalgae culture tank. An air inlet pipe and a liquid inlet pipe are respectively mounted at the top of the microalgae temporary storage tank, a culture conveying pipe is fixedly connected between the microalgae culture tank and the microalgae temporary storage tank, a valve C is mounted on the culture conveying pipe, a harvesting conveying pipe is fixedly connected between the microalgae temporary storage tank and the microalgae harvesting tank, and a valve A is mounted on the harvesting conveying pipe. According to the microalgae culture and harvesting integrated device, microalgae culture and harvesting are integrated, the structure is simplified, the construction cost is reduced, the operation difficulty is reduced, the possibility that microalgae are polluted is reduced, and commercial production of microalgae is met.

Desert algae sand burying preservation method

Resumen de: CN119709410A

The invention relates to a desert algae sand burying preservation method. The desert microalgae are inoculated into the sandy soil culture medium obtained by mixing the algae culture medium and the sandy soil, so that desert algae cells are preserved in the culture medium close to the original living environment, the preservation time of the desert algae cells can be effectively prolonged, the survival rate can be increased, and long-term stable preservation of the desert algae cells with specific forms and physiological characteristics can be ensured. The method is simple and rapid to operate, low in application cost and capable of keeping the original hereditary characteristics of algae species for a long time and improving the preservation effect.

Algae-light complementary microalgae culture system and operation process thereof

Resumen de: CN119709367A

The invention provides an algae-light complementary microalgae culture system, which comprises a photovoltaic cell module, the photovoltaic cell module comprises an electric sunshade net, a storage battery and a plurality of groups of solar photovoltaic panels, and the electric sunshade net and the plurality of groups of solar photovoltaic panels are electrically connected with the storage battery; the sewage storage and transportation module is located under the electric sunshade net and electrically connected with the storage battery, and the sewage storage and transportation module is used for sewage storage, sterilization and temperature control; the microalgae culture module is located under the electric sunshade net and connected with the sewage storage and transportation module, and the microalgae culture module is used for culturing target microalgae; the remote control module is electrically connected with the electric sunshade net, the sewage storage and transportation module and the microalgae culture module. The problems that a photovoltaic power generation technology mentioned in the background technology is low in space utilization efficiency, and smoke CO2 and waste water generated by a biomass power plant are difficult to treat are solved.

Agricultural microalgae fertilizer in-situ manufacturing and applying device and method

Resumen de: CN119709359A

The invention discloses an agricultural microalgae fertilizer in-situ manufacturing and applying device and method, and belongs to the field of microbial fertilizer manufacturing, the device comprises a first box body, the first box body is filled with a culture solution and microalgae, the first box body is communicated with a supplement pipe, the side wall of the first box body is provided with a plurality of overflow small holes, and the overflow small holes are communicated with the supplement pipe; the supplementing pipe can supplement a culture solution into the first box body, the supplementing pipe injects the culture solution into the first box body, and when the liquid level of the culture solution reaches the overflow small hole, the culture solution containing microalgae flows out to the soil, and when injection of the culture solution into the first box body is stopped, the microalgae remaining in the first box body continues to grow; the device is easy and convenient to operate, efficient preparation and application of the microalgae fertilizer can be achieved on the premise that the activity of microalgae cells is not damaged, the manufacturing and transportation cost of the microalgae fertilizer can be greatly reduced, the utilization efficiency of the fertilizer can be improved, and healthy growth of crops can be promoted.

Method for efficiently removing nitrogen and phosphorus by using microalgae membrane reactor with alternate temperature

Resumen de: CN119707120A

The invention discloses a temperature-alternating microalgae membrane reactor high-efficiency nitrogen and phosphorus removal method, which comprises a reactor main body, a ceramic membrane assembly is arranged in the reactor, and microalgae are inoculated in the reactor; the reactor main body is internally provided with a stirring device for uniformly suspending microalgae in the reactor; the reactor main body is made of a transparent material, and a light source is arranged outside the reactor main body; the top of the reactor main body is communicated with a water inlet pipeline for water feeding, and the liquid level is controlled by a liquid level controller; the top of the ceramic membrane component is communicated with a water outlet pipeline; a water outlet pump is arranged on the water outlet pipeline; a temperature control device is arranged on the outer side of the reactor and can monitor, regulate and control the temperature of liquid in the reactor. According to the method, the microalgae are subjected to suspension culture in the microalgae membrane reactor in a temperature alternating manner, the sensitivity of the microalgae to the environment temperature is fully utilized, the method has the advantages of low energy consumption, few byproducts and the like, and the synchronous nitrogen and phosphorus removal efficiency of the microalgae can be remarkably improved.

Enhanced triacylglycerol productivity and extractability in engineered microalgae

Resumen de: CN119731197A

The present invention relates to engineered single-cell native algae bacteria microalgae comprising a loss of homologous Seipin gene function, an in vitro process for the production of triacylglycerol (TAG), and uses thereof.

Culture method of seawater microalgae

Resumen de: CN119709415A

The invention provides a culture method of seawater microalgae. The culture method comprises the following steps: sequentially carrying out first-step culture, second-step culture, third-step culture and fourth-step culture on algae species of the seawater microalgae to obtain the seawater microalgae, 4, culturing in an outdoor pipeline-type photobioreactor, and carrying out shading treatment on the pipeline-type photobioreactor until the shading area is greater than or equal to 65%; wherein the light intensity of the shading part is 0-200 mu mol photon.m <-2 >. S <-1 >, and the light intensity of the non-shading part is 0-2000 photon.m <-2 >. S <-1 >. According to the method, the seawater microalgae can grow in a better state through a culture method of expanding a culture system step by step and finally utilizing a sealed pipeline type photobioreactor to perform fourth-step culture, and the illumination intensity at the culture stage is adjusted, so that the culture efficiency and the yield of the seawater microalgae are improved, and the yield of fucoxanthin is improved.

Closed microalgae culture treatment device for pollutant treatment and carbon sequestration

Resumen de: CN119709361A

The invention discloses a closed microalgae culture treatment device for pollutant treatment and carbon sequestration, and relates to the technical field of pollutant treatment.The closed microalgae culture treatment device is characterized in that a closed pipeline culture device in the prior art is modified, and adherent microalgae are cleaned by arranging a cylindrical sliding block in a tubular culture treatment unit; a plurality of annular air bags with adjustable expansion and contraction are arranged on the side wall of the cylindrical sliding block; an independent pipe body is arranged to be responsible for conveying a culture solution into the tubular culture treatment unit and outputting the culture solution from the tubular culture treatment unit; a channel for a culture solution to flow is formed in the cylindrical sliding block, and the culture solution is efficiently stirred in the moving process of the cylindrical sliding block; the closed microalgae culture treatment device for pollutant treatment and carbon sequestration has the technical effects that the cleaning strength of the closed microalgae culture treatment device for the pollutant treatment and the carbon sequestration is adjustable, the cleaning effect is stable, the microalgae culture solution is not easy to pollute during transfer, and the stirring efficiency of the microalgae solution is high.

Culture medium for realizing large-scale and low-cost microalgae growth

Resumen de: CN119709413A

The invention discloses a culture medium for realizing large-scale and low-cost growth of microalgae. The culture medium comprises the following raw materials: 0.25-2.5 g/L of water-soluble fertilizer; 25 to 150 mg/L of magnesium sulfate; 10 to 100 mg/L of calcium chloride; 0-80 mg/L of sodium carbonate; and trace elements. According to the culture medium, the production cost of microalgae is reduced, the stability of a formula is improved, and large-scale production in the microalgae industry can be realized, so that the biomass of various microalgae and the accumulation of bioactive substances are improved. Compared with traditional formulas such as BG11, BBM and HUT, the culture cost of the culture medium for producing 1 ton of algae powder is reduced by 30%-60% through accounting. The culture medium provided by the invention has the advantages that the growth speed of the microalgae is increased, the capability of promoting bioactive substances (grease, protein, astaxanthin and polysaccharide) synthesized by the microalgae is improved, and the culture cycle of the microalgae is shortened by 10-35%.

EMS-ARTP compound mutation chlorella pyrenoidosa mutant strain and application thereof

Resumen de: CN119709412A

The invention discloses an EMS-ARTP compound mutation chlorella pyrenoidosa mutant strain and an application thereof. The preparation method comprises the following steps: mutagenizing a chlorella pyrenoidosa mutant strain CX41 by adopting an ethyl methanesulfonate (EMS) and normal-pressure and room-temperature plasma (ARTP) composite technology, screening and verifying to obtain a golden yellow chlorella pyrenoidosa mutant strain, naming the golden yellow chlorella pyrenoidosa mutant strain as chlorella pyrenoidosa Y11, and screening and verifying the golden yellow chlorella pyrenoidosa Y11 to obtain the chlorella pyrenoidosa Y11. The strain is preserved in Guangdong Microbial Culture Collection Center (GDMCC) on the fifth floor of the building 59, No. 100 courtyard, Xianlie Middle Road, Guangzhou on October 23, 2024, and the preservation number is GDMCC No: 65324. The chlorella pyrenoidosa mutant strain Y11 has the characteristics of high yield of protein and rich carotenoids, and can be used for fermentation production of microalgae protein and carotenoids.

Application of Synchrococcus elongatus PCC 7942

Resumen de: CN119709617A

The invention provides an application of a Synecocus elongatus PCC 7942, and relates to the technical field of biomedicine, in particular to an application of the Synecocus elongatus PCC 7942. According to the present invention, the Synchrococcus elongatus PCC 7942 belongs to cyanobacteria, and the research results of the inventor show that the strain has functions of I-type macrophage differentiation promotion, fibroblast activation inhibition and PD-L1 expression inhibition, can remodel the tumor microenvironment immunosuppression state, has good safety, and has good application prospects in tumor treatment. The invention also provides a method for inducing the Synecocus elongatus PCC 7942 to kill cancer cells, the method is simple and efficient, and the killing ability of the strain on cancer cells can be obviously improved only by performing ultrasonic treatment on the strain.

METHOD FOR CULTURING MICROALGAE USING AIR

Resumen de: WO2025063640A1

The present invention relates to a method for culturing microalgae by using air. The method for culturing microalgae according to an embodiment of the present invention, in which microalgae is cultured inside a reactor, comprises: a step for adding a growth medium and limestone to the inside of the reactor; a step for supplying air to the inside of the reactor to which the growth medium and limestone were added, the air being supplied using an air pump; and a step for inoculating microalgae inside the reactor supplied with air, and growing the microalgae by performing a first photo-culture.

PLANT DISEASE RESISTANCE INDUCING AGENT, PLANT DISEASE RESISTANCE INDUCING METHOD, AND METHOD FOR PRODUCING PLANT DISEASE RESISTANCE INDUCING AGENT

Resumen de: US2025098687A1

The present disclosure provides a plant disease resistance inducing agent that can effectively induce resistance to a plant disease. A plant disease resistance inducing agent according to the present disclosure contains a secretion product of a cyanobacterium.

METHOD FOR CULTURING MICROALGAE USING AIR

Resumen de: KR20250041590A

본 발명은 공기를 활용한 미세조류 배양방법에 관한 것으로, 본 발명의 실시예에 따른 미세조류 배양방법은 반응기의 내부에서 미세조류를 배양하는 미세조류 배양방법에 있어서, 반응기의 내부에 성장기 배지 및 라임스톤(limestone)을 첨가하는 단계, 공기펌프를 이용해 성장기 배지 및 라임스톤이 첨가된 반응기의 내부에 공기를 공급하는 단계, 및 공기가 공급된 반응기의 내부에 미세조류를 접종하고 제1 광배양하여 미세조류를 성장시키는 단계를 포함한다.

MICROALGAE CULTURE APPARATUS

Resumen de: WO2025058231A1

The present invention relates to a microalgae culturing apparatus comprising: a housing which has a predetermined installation space thereinside; a culture unit which is made of a transparent material and is provided in the form of a water tank having an algae culture space filled with microalgae and a culture medium therein so as to be capable of installation in or removal from the installation space in the housing; a culture unit connection part which is provided on one side of the installation space in the housing so as to, when the culture unit is placed and installed thereon, maintain a watertight state and have a connection structure in which the inside of the culture unit and the inside of the culture unit connection part communicate with each other; a lighting part which is installed on one side of the installation space in the housing and outputs and provides light toward the culture unit when the lighting unit is driven; an air supply unit which is connected to the lower portion of the culture unit connection part and provides an air supply path for supplying air introduced into the installation space from the outside of the housing to the algae culture space in the culture unit; and a culture medium circulation unit which is connected to the lower portion of the culture unit connection part so as to suck in the microalgae and the culture medium discharged to the lower portion of the algae culture space in the culture unit and circulate and discharge the microalgae

Ecological tail water treatment system

Resumen de: CN119683792A

The invention discloses an ecological tail water treatment system, which comprises a culture area, a tail water storage adjusting tank, a purification area and an inlet water treatment system which are sequentially and circularly communicated, the purification area comprises a vortex separation tank, an inclined plate sedimentation tank, a brush treatment tank, a filler denitrification tank, an aeration filler tank, a secondary sedimentation tank, a salt-tolerant plant area, a microalgae purification tank and a shellfish biological filter, a filtering system convenient to replace and clean and an aeration system with a strong water stirring function are additionally arranged on a dam of the tail water storage adjusting pond, the water inlet treatment system is communicated with the breeding area, and the vortex separation pond, the inclined plate sedimentation pond, the brush treatment pond, the filler denitrification pond and the aeration filler pond are all communicated with the fermentation pond. The water inlet treatment system comprises a water inlet pipe group penetrating through the tail water storage regulating reservoir, and the water inlet pipe group exchanges heat with water in the tail water storage regulating reservoir, so that the water temperature is balanced. The ecological tail water treatment system provided by the invention can fully adjust the temperature of inlet water, and can more efficiently and fully purify the circulating water body.

Chlorella pyrenoidosa white mutant strain FZU65-W1 and application thereof

Resumen de: CN119685168A

The invention discloses a chlorella pyrenoidosa white mutant strain FZU65-W1 and application of the chlorella pyrenoidosa white mutant The classification name of the chlorella pyrenoidosa white mutant strain FZU65-W1 is chlorella pyrenoidosa, the chlorella pyrenoidosa white mutant strain is preserved in the China General Microbiological Culture Collection Center on September 11, 2024, the preservation number is CGMCC N0.46151, and the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing. Compared with an original strain FZU65, the chlorella pyrenoidosa white mutant strain FZU65-W1 has the advantages that the growth speed of algae cells under the heterotrophic condition is higher, and meanwhile, the cells are white due to the fact that chlorophyll and carotenoid are not synthesized in the cells. The chlorella pyrenoidosa white mutant strain FZU65-W1 can be used for producing high-quality protein through heterotrophic fermentation, so that not only can a later-stage protein extraction and preparation process be simplified, but also the sensory acceptance of algae powder can be improved, and a high-quality germplasm resource is provided for industrial production and application of microalgae protein.

Algae-bacterium co-culture complex, culture method thereof, method for producing biomass by using algae-bacterium co-culture complex, biomass and related products

Resumen de: CN119685167A

The invention relates to the technical field of bioengineering, and discloses an algae-bacterium co-culture complex which is obtained by co-culturing microalgae and magnetotactic bacteria. The composition of the biological hydrocarbon on the surface of the microalgae can provide a relatively anaerobic growth environment for magnetotactic bacteria, and attachment and symbiosis of the microalgae and the magnetotactic bacteria are achieved. Meanwhile, magnetosome particles, glycopeptides and other substances synthesized by magnetotactic bacteria in cells can enter microalgae cells through endocytosis to promote hydrocarbon synthesis of the microalgae cells, so that hydrocarbon accumulation of the microalgae cells is increased; magnetotactic bacteria attached to the surface and magnetosomes in algae cells endow the microalgae with the characteristics of magnetic cells, the cells can be recovered through an external magnetic field, and the magnetic separation and recovery operation is simple, the separation speed is high, the energy consumption is low, and the recovery rate is high. The invention also discloses a culture method of the algae-bacterium co-culture complex, a method for producing biomass by using the algae-bacterium co-culture complex, the biomass and related products.

Nitrogen-fixing cyanobacteria heteroplasm as well as rapid induction method and application thereof

Resumen de: CN119685196A

The invention relates to a nitrogen-fixing cyanobacteria heteromorphic cell and a rapid induction method and application thereof, and the rapid induction comprises the following steps: putting nitrogen-fixing cyanobacteria in a nitrogen-deficient culture solution under an illumination condition, inducing for 12 hours, then putting the taken nitrogen-fixing cyanobacteria in a nitrogen-deficient phosphorus-supplemented culture solution, and continuously inducing for 12 hours; meanwhile, a high-content cell imaging analysis system is used for quantifying the quantity, the cell size and the relative fluorescence intensity of the heteromorphic cells formed by differentiation; compared with induction in a culture solution which is deficient in nitrogen and not supplemented with phosphorus, the number of the heteromorphic cells of the three nitrogen-fixing blue-green algae is averagely increased by 43.3%, and the number of the heteromorphic cells of the anabaena is increased by 116%; the culture mode of nitrogen deficiency and phosphorus supply can accelerate the process of inducing heteromorphic cell differentiation, and finds that the number of the heteromorphic cells differentiated from the three strains has the best effect under the conditions of 24 hours of induction in two steps and three times of phosphorus supply.

Ecological treatment module of ecological tail water treatment system

Resumen de: CN119683774A

The invention discloses an ecological treatment module of an ecological tail water treatment system, the ecological treatment module comprises a salt-tolerant surface flow wetland, a microalgae purification pond and a biological filter, supernatant water treated by a pre-treatment process is used for treating water-soluble organic matters in water through the salt-tolerant surface flow wetland, flows into the microalgae purification pond for absorbing salts in the water, and flows into the biological filter; an aeration device is arranged in the microalgae purification pond and comprises an aeration hole and an anti-blocking assembly moving relative to the surface of the aeration hole, and then the microalgae flows into the biological filter to be used for filtering and purifying the algae, so that nitrogen fixation and carbon fixation are realized. The invention provides the ecological module of the ecological tail water treatment system, which has the advantages of high efficiency, energy conservation, better treatment effect and difficulty in aeration pipe blockage.

Preparation method and application of chitosan diatomite composite flocculant

Resumen de: CN119660931A

The invention discloses a preparation method and application of a chitosan and diatomite composite flocculant, and the preparation method comprises the following steps: preparing a chitosan-diatomite flocculant by using chitosan and diatomite as raw materials, and then adding gamma-aminopropyltriethoxysilane (APTES) to prepare the composite flocculant (APTES-CTS/DTE). Compared with chitosan serving as a flocculating agent, the composite flocculating agent has the advantages that the use amount of the chitosan is reduced; and compared with diatomite serving as a flocculating agent, the harvesting efficiency is remarkably improved. The composite flocculant provided by the invention overcomes the defects of environmental pollution risk and influence on downstream biomass product processing due to adoption of other inorganic/organic flocculants at the present stage, and large dosage and high cost when chitosan is adopted to harvest microalgae.

Microalgae nutrient solution, fertilizer composition and sugar beet fertilizing method

Resumen de: CN119662412A

The invention provides a microalgae nutrient solution and application thereof, and belongs to the technical field of agriculture. The invention provides a microalgae nutrient solution. The microalgae nutrient solution comprises nitrogen-fixing blue-green algae and photosynthetic nutrient green algae, the content of algae single cells in the microalgae nutrient solution is greater than or equal to 1.0 * 10 < 6 >. The microalgae nutrient solution provided by the invention, as a microalgae fertilizer, can significantly improve the activities of urease, sucrase and catalase in soil and reduce the activity of polyphenol oxidase in the soil; the content of alkali-hydrolyzable nitrogen in soil is increased, and the nitrogen fertilizer absorption amount of beet is improved; the richness of soil microbial communities can be increased, and the number of actinomycetes and proteobacteria is increased; growth and development of the beet can be remarkably promoted, the plant height, fresh weight, leaf number, chlorophyll content and net photosynthetic rate of the beet can be improved, accumulation of dry matter of beet tuberous roots can be promoted, timely transfer of beet growth centers can be regulated, and then the yield and sugar yield of the beet can be increased.

Spiral and contraction-expansion coupled microchannel and flexible microalgae sorting method

Resumen de: CN119662372A

The invention discloses a spiral and contraction-expansion coupled micro-channel, which is formed by coupling a spiral micro-channel and a contraction-expansion channel according to three different forms of single-side coupling, double-side coupling or staggered coupling, and is provided with a sample inlet and two outlets, the initial radius of the spiral and contraction and expansion coupling micro-channel is 3-5 mm. The invention further discloses a flexible microalgae sorting method based on the spiral and contraction-expansion coupled microchannel. According to the spiral and contraction-expansion coupled micro-channel provided by the invention, the problems that a traditional microalgae cell sorting method is greatly influenced by environmental conditions and growth states, the sorting speed is low and professional experimental equipment is needed are solved.

Sewage treatment system and method for pollution reduction and carbon reduction synergetic recycling

Resumen de: CN119660947A

The invention relates to a sewage treatment system and a sewage treatment method for pollution reduction and carbon reduction synergetic recycling. The sewage treatment system comprises a biochemical system and a light algae reaction device which are connected in sequence and run in a sequencing batch mode, the biochemical system is used for carrying out aeration biochemical reaction on the sewage to be treated so as to remove organic matters in the sewage and generate carbon dioxide; microalgae in the light-algae reaction device grow by taking nitrogen and phosphorus in the water treated by the biochemical system as nutrients so as to remove nitrogen and phosphorus in the water, and carbon dioxide generated by the microalgae is subjected to photosynthesis to generate oxygen, so that pollution reduction and carbon reduction are realized, and treated algae-water mixed liquid is obtained and is used for irrigating lean nutrient soil; therefore, water and fertilizer increase of the poor nutrient soil is realized. The invention further provides a sewage treatment method of the sewage treatment system for pollution reduction, carbon reduction and recycling. The treated algae-water mixed solution is used for recarburization nutrition cultivation of barren soil, and a new way is provided for soil improvement and sewage resource utilization.

Method for improving cyanobacteria harvesting efficiency based on photoinduced cell growth

Resumen de: CN119662498A

The invention relates to a method for harvesting liquid culture of cyanobacteria. The method comprises the step of inducing cultured cyanobacteria cells to increase the length of the cyanobacteria cells before harvesting. According to the method, a light-sensitive gene regulation and control system and a gene which is regulated and controlled by the light-sensitive gene regulation and control system and affects the cellular morphology are transferred into target cyanobacteria cells, and expression of genes related to the cellular morphology is induced through irradiation of green light, so that the cell length is successfully increased; therefore, the cultured cyanobacteria can be harvested more efficiently by using a filter membrane filtration mode.

Cultivation method of outdoor pond biological bait

Resumen de: CN119655208A

The invention particularly relates to a method for cultivating biological bait in an outdoor pond. According to the method, after an outdoor pond is disinfected and cleaned, a biological fertilizer source and various beneficial bacteria combination are used in a combined mode, cryptococcus ovale, composite diatom and chlorella are inoculated, a stable pond bacterium-algae system is constructed, and various cultivated microalgae are used for strengthening zooplanktons of rotifers, cladocerans and copepods in the bait pond. The breeding period of the biological bait is shortened, the survival rate of the biological bait is increased, the yield of the biological bait is increased, meanwhile, the nutritional value of the biological bait is enhanced, and opening breeding of the fry is facilitated. The breeding method is low in cost and suitable for various weathers, and sufficient bait guarantee is provided for large-scale breeding of fish fries.

Microalgae culture shelf

Resumen de: CN222647926U

The utility model discloses a microalgae culture shelf which comprises four stand columns, three placing plates are welded among the four stand columns from top to bottom at equal intervals, and a lifting adjusting mechanism is installed in the middle of the upper end of each placing plate. The microalgae culture frame has the beneficial effects that the lifting adjusting mechanism is mounted on the placing plate, so that the bidirectional screw rod can be rotated by virtue of a hand wheel in the lifting adjusting mechanism when the microalgae culture frame is used, and the lifting plate can be lifted under the action of the bidirectional screw rod and a connecting rod; by means of the design, when the microalgae culture shelf is used, step-shaped height differences can be formed between the microalgae culture bottles on the inner sides of all the layers of containing plates and the microalgae culture bottles on the edges, it is guaranteed that illumination intensity borne by microalgae in all the rows of microalgae culture bottles is uniform, and meanwhile workers can conveniently observe the growth conditions of all the rows of microalgae conveniently.

Composite microalgae cultivation system

T CELL DIFFERENTIATION-REGULATING AGENT AND COMPOSITION

Resumen de: US2025090611A1

It is an object of the present invention to provide a means capable of appropriately regulating differentiation of T cells, in order to avoid overactivation of T cells after stimulation of the T cells with superantigens or the like and the subsequent decrease in the immune functions (exhaustion of the immune system). The present invention relates to a T cell differentiation-regulating agent, comprising, as an active ingredient, an algal body of microalgae belonging to the genus Coccomyxa, a dry powder thereof, or an extract thereof.

MICROALGAE CULTURING APPARATUS

Resumen de: WO2025058231A1

The present invention relates to a microalgae culturing apparatus comprising: a housing which has a predetermined installation space thereinside; a culture unit which is made of a transparent material and is provided in the form of a water tank having an algae culture space filled with microalgae and a culture medium therein so as to be capable of installation in or removal from the installation space in the housing; a culture unit connection part which is provided on one side of the installation space in the housing so as to, when the culture unit is placed and installed thereon, maintain a watertight state and have a connection structure in which the inside of the culture unit and the inside of the culture unit connection part communicate with each other; a lighting part which is installed on one side of the installation space in the housing and outputs and provides light toward the culture unit when the lighting unit is driven; an air supply unit which is connected to the lower portion of the culture unit connection part and provides an air supply path for supplying air introduced into the installation space from the outside of the housing to the algae culture space in the culture unit; and a culture medium circulation unit which is connected to the lower portion of the culture unit connection part so as to suck in the microalgae and the culture medium discharged to the lower portion of the algae culture space in the culture unit and circulate and discharge the microalgae

CONTINUOUS MICROALGAE HARVESTING AND CULTIVATING APPARATUS

Resumen de: KR20250038982A

미세조류 배양 및 수확장치가 개시된다. 본 발명에 따른 미세조류 배양 및 수확장치는, 내부공간을 형성하는 프레임과, 투명재질로 이루어져 상기 내부공간의 전방을 개폐하도록 상기 프레임에 마련되는 도어와, 투명재질로 이루어지고 상기 프레임의 좌,우측과 후방에 결합되어 상기 내부공간을 외부와 구분하는 각각의 수직판재와, 배양액이 유입되기 위한 배관 연결구를 구비하여 상기 프레임의 상부에 결합되는 빛이 투과되도록 투명재질로 된 상부판재를 포함하는 본체; 메쉬가 서로 다른 메쉬망을 각각 구비하여 상기 본체의 내부공간에 수직방향으로 간격을 유지하여 각각 설치되되, 상부에서 하부로 갈수록 메쉬가 점차 작은 메쉬망이 위치하도록 설치되고, 상기 도어를 통하여 인출 가능하게 설치되는 다수개의 수확용 트레이; 및 상기 배관 연결구를 통하여 공급되는 배양액이 각 상기 수확용 트레이의 각 메쉬망을 통과한 후 수집되도록 상기 본체의 하부에 마련되는 임시 저장탱크를 포함하고, 상기 배관 연결구를 통하여 공급되는 배양액이 각 상기 수확용 트레이의 각 상기 메쉬망을 차례로 통과하여 상기 임시 저장탱크로 수집되는 과정에서 각 상기 메쉬망에 걸러진 미세조류가 공급되는 배양액에 의해 배양되고,

Photobioreactor

Resumen de: CN119639549A

The invention provides a photobioreactor. The photobioreactor comprises a light-permeable container; the first light supplementing assembly is installed in the light-transmitting container and located in the middle of the light-transmitting container; the reaction tubes are used for containing microalgae suspension liquid, and the multiple reaction tubes surround the first light supplementing assembly and are installed on the light-permeable container; the plurality of second light supplementing assemblies are mounted on one side, back on to the first light supplementing assembly, of the reaction tube; and a controller; wherein the controller can receive the illumination intensity information of the surface of the reaction tube and send instructions to the first light supplementing assembly and the second light supplementing assembly to adjust the light supplementing intensity, so that the stability of the illumination environment in the reactor is maintained. When the external illumination condition changes, the controller controls the light supplementing assembly to adjust the light supplementing intensity according to the monitored illumination intensity change so as to maintain the stability of the whole illumination environment in the reactor.

Device and method for improving transparency of natural water body by utilizing microalgae biological membrane

Resumen de: CN119638078A

The invention provides a device and a method for improving transparency of a natural water body by utilizing a microalgae biological membrane, and belongs to the field of water treatment, and the device comprises a water tank, rollers, a microalgae attachment matrix, a water distribution device and a lighting device. The transparency of the natural water body is effectively improved through the microalgae biological membrane. The microalgae biological membrane secretes macromolecular extracellular polymeric substances, can adsorb suspended particulate matters and soluble organic matters in water, and inhibits the reproduction of other planktons through nutrition competition, so that the turbidity is reduced. In addition, the device is designed as up-flow water inlet, so that the contact between the water body and the microalgae biological membrane is enhanced, and the treatment effect is improved. LED lamps and a heating device are adopted to keep a proper growth environment, and meanwhile, a photovoltaic power generation system is arranged, so that green and environment-friendly effects are achieved. The method is simple and easy to implement, low in cost and convenient to manage and maintain, and a novel and effective technical scheme is provided for improving the transparency of the natural water body.

PHOTOSYNTHETIC ORGANISMS CULTURE APPARATUS, AND METHOD FOR CULTURING PHOTOSYNTHETIC ORGANISMS USING THE SAME

Resumen de: JP2025036813A

To provide a photosynthetic organisms culture apparatus that can culture photosynthetic organisms such as microalgae even more efficiently and deal with various production scales, and a method for culturing photosynthetic organisms using the apparatus.SOLUTION: A photosynthetic organisms culture apparatus of the present invention comprises: a culture tank which houses culture solution containing photosynthetic organisms and has a light-transmitting part which transmits external light into the apparatus; and liquid feeding means which feeds culture solution from a lower part of the culture tank to an upper part of the culture tank, and discharges the solution in the culture tank to allow the solution to flow down on the light-transmitting part. By using the apparatus of the present invention, the culture solution containing photosynthetic organisms is fed from the lower part to the upper part of the culture tank by the liquid feeding means, and discharged from the upper part of the culture solution into the culture tank under irradiation of external light to be flown down on the light-transmitting part, by which photosynthetic organisms can be efficiently cultured.SELECTED DRAWING: Figure 1

System for efficiently treating livestock and poultry breeding sewage by utilizing algal-bacterial symbiosis

Resumen de: CN119612846A

The invention relates to the technical field of sewage treatment, in particular to a system for efficiently treating livestock and poultry breeding sewage by utilizing algal-bacterial symbiosis, which comprises a solid-liquid separation module arranged on the ground, the solid-liquid separation module comprises a water inlet pipe, a separation box and a filter basket, a nitrification and denitrification tank is arranged on the top of the ground, and a stirring assembly is arranged in the nitrification and denitrification tank; the chemical phosphorus removal module comprises a coagulation, flocculation and sedimentation tank and a stirring assembly, the coagulation, flocculation and sedimentation tank is arranged on the ground, and the stirring assembly is arranged in a coagulation and flocculation area in the coagulation, flocculation and sedimentation tank; according to the system for efficiently treating the livestock and poultry breeding sewage by utilizing the bacterial-algae symbiosis, compared with an existing method for removing the total nitrogen content in the sewage by independently utilizing microorganisms, pollutants in the sewage are synergistically removed in the oxidation pond by utilizing a bacterial-algae symbiosis structure, microalgae and bacteria, so that the energy consumption and the carbon source are saved, and the environmental pollution is reduced. Meanwhile, the sewage treatment effect is improved.

Mudflat shellfish breeding method

Resumen de: CN119605706A

The invention relates to the field of aquaculture, and discloses a mud flat shellfish breeding method which comprises the following steps: mixing algae powder and fresh microalgae in a feeding device to obtain bait; the baits are fed to mud flat shellfish larvae through a feeding device, and seedling raising is conducted; wherein in the bait, the cell number ratio of the algae powder to the fresh microalgae is 100 or less; wherein the mixing conditions are as follows: the pressure is negative pressure, and the time is more than 5 minutes. According to the method, the hidden danger that culture is unstable when the algae powder is used for replacing fresh algae can be reduced, and mixed feeding of the microalgae and the algae powder for full-artificial breeding of the mud flat shellfish is achieved.

Domestication method of microalgae and application of domesticated microalgae in treatment of sulfur-containing gas

Resumen de: CN119614473A

The invention relates to the field of microalgae culture, in particular to a microalgae domestication method and application of domesticated microalgae produced by the method in treatment of sulfur-containing gas. The domestication method of the microalgae comprises the following steps: inoculating the microalgae to a domestication culture medium, introducing sulfur-containing gas, and sequentially carrying out at least two stages of domestication culture to obtain the domesticated microalgae. By adopting the domestication method of the microalgae, provided by the invention, the sulfur resistance and the desulfurization efficiency can be remarkably improved.

Method for culturing beneficial algae by resource utilization of cyanobacterial bloom

Resumen de: CN119614376A

The invention provides a method for culturing beneficial algae by resource utilization of cyanobacterial blooms, which comprises the following steps: 1, obtaining cyanobacterial (microcystis) blooms, and concentrating the cyanobacterial (microcystis) blooms until the concentration of chlorophyll a is 80-150mg/L; 2, carrying out continuous hydrodynamic disturbance on the high-concentration cyanobacterial bloom, wherein the disturbance intensity is suitable for preventing the cyanobacterial bloom from blackening and stinking; 3, continuously disturbing for 20-60 days to obtain cyanobacterial bloom which turns light yellow green or white; 4, tap water is used for diluting cyanobacterial blooms with changing colors, the concentration during dilution is 0.5-2.3 mL/cm < 2 >, and beneficial algae such as diatom and green algae are inoculated for culture under the conditions of normal temperature and weak light; and 5, when the culture is performed for 12-30 days, the growth density of the beneficial algae reaches the highest peak, and the cell density of the beneficial algae can reach up to 2.5 * 10 < 6 >-5.6 * 10 < 7 > cells/cm < 2 >. According to the method, algal toxin can be removed, beneficial algae such as diatom and green algae can be cultured through resource utilization of the cyanobacterial bloom, and a new way is provided for control and resource utilization of the cyanobacterial bloom.

Preparation method and application of microalgae exosome-fucoxanthin composite nanoparticles

Resumen de: CN119606919A

The invention discloses a preparation method and application of microalgae exosome-fucoxanthin composite nanoparticles, and the preparation method is characterized by comprising the following steps: adding a fucoxanthin ethanol solution and a microalgae exosome solution into a cuvette according to a mass ratio of (0.5-1.5): 1, co-incubating for 30 minutes, adding an electrotransfection buffer solution which is 1-3 times of the volume of the mixed solution, and uniformly stirring; the mixed solution in the cuvette is subjected to electroporation by using an electroporation instrument, electric shock is carried out by controlling the voltage to be 100-500 V and the capacitance to be 300-700 mu F, then incubation is carried out for 0.5-2 h at the temperature of 35-40 DEG C, the mixed solution is centrifuged for 20-40 min under the conditions of 80000-120000 g and the temperature of 4 DEG C, precipitation particles are collected, and the microalgae exosome-fucoxanthin composite nanoparticles are obtained. The application of the composite nanoparticle in preparation of an antioxidant, an ABTS free radical scavenger and/or a DPPH free radical scavenger has the advantages that the stability and bioavailability of fucoxanthin are improved, and a synergistic antioxidant effect is generated.

Photoelectric microfluidic automatic control method for screening microalgae growth conditions

Resumen de: CN119619027A

The invention discloses a photoelectric microfluidic automatic control method for screening microalgae growth conditions, which is characterized by comprising the following steps: preparing different types of culture medium solutions, respectively introducing the culture medium solutions into a photoelectric wetting chip, and generating different types of culture medium drops on the photoelectric wetting chip; automatically obtaining the current positions and IDs of a plurality of culture medium drops, and automatically obtaining the current positions and IDs of algae drops; according to the current positions and the IDs of the plurality of culture medium drops and the current positions and the IDs of the algae drops, respectively planning moving paths of the plurality of culture medium drops to the corresponding algae drops; respectively driving the plurality of culture medium drops to move to the corresponding algae drops in parallel according to the moving path through the plurality of light spots for fusion; and culturing the fused liquid drops in an illumination incubator so as to screen out a culture medium solution which is most suitable for the growth of the algae drops.

Method for treating chlorella circulating culture solution through Fenton oxidative coupling activated carbon adsorption and application of chlorella circulating culture solution

Resumen de: CN119614375A

The invention belongs to the technical field of biological energy and environmental engineering, and particularly discloses a method for treating a chlorella circulating culture solution through Fenton oxidative coupling activated carbon adsorption to solve the growth inhibition phenomenon caused by extracellular polymeric substance accumulation in the microalgae circulating culture process so as to achieve cyclic utilization of the chlorella culture solution and application of the chlorella culture solution. By means of Fenton oxidative coupling activated carbon adsorption, chlorella extracellular polymeric substances (EPS) can be effectively degraded and oxidized and decomposed into small-molecule organic substances, the growth inhibition effect of the small-molecule organic substances on chlorella is relieved, an organic carbon source can be provided for growth and metabolism of chlorella, and growth of chlorella is remarkably promoted. According to the method, the chlorella circulating wastewater is treated and recycled through Fenton oxidative coupling activated carbon adsorption, so that the yield of chlorella biomass can be effectively increased, and the production and culture cost is reduced.

Microalgae culture medium and microalgae preservation method

Resumen de: CN119614374A

The invention provides a microalgae culture medium and a microalgae preservation method, relates to the technical field of algae culture, and particularly provides a brand-new microalgae preservation liquid culture medium and a microalgae preservation solid culture medium, and develops a brand-new microalgae biphasic preservation method by using the microalgae preservation liquid culture medium and the microalgae preservation solid culture medium. The preservation method comprises the following steps: inoculating microalgae species in an exponential growth phase into a microalgae preservation solid culture medium, culturing for 5-10 days, and adding a microalgae preservation liquid culture medium into the microalgae preservation solid culture medium inoculated with the microalgae species to form a semi-solid culture medium, the semi-solid culture medium is subjected to biphasic preservation under natural light at 2-10 DEG C. The preservation method can effectively prolong the preservation time of microalgae species, ensures the preservation effect, and has wide application prospects.

Outdoor air clearing device using microalgae

Resumen de: KR20250036368A

본 발명은 내부에 유동공간이 마련되며, 상기 유동공간으로 공기가 유입될 수 있도록 유입구와 배출구가 형성된 본체와 상기 본체에 설치되어 공기를 상기 유입구로 유입되어 상기 배출구로 배출되도록 강제 송풍시키는 송풍유닛과 상기 유동공간 내에 설치되며, 내부에 미세조류가 생장되는 배양액이 수용되는 저수공간이 마련된 배양수조와, 상기 유동공간으로 유입된 공기 중 이산화탄소를 소비하여 산소가 발생되도록 상기 미세조류가 광합성할 수 있게 상기 배양수조 내에 광을 조사하는 광원부가 마련된 배양유닛 및 상기 유동공간으로 유입된 공기 중 이물질을 걸러낼 수 있도록 상기 배양수조에 수용된 배양액 중 일부를 상기 유동공간을 통과하는 공기와 접촉시킨 다음, 상기 배양수조로 회귀시키는 접촉유닛을 특징으로 한다. 본 발명에 따르면, 건물 밖에 야외에 설치되어 미세조류를 이용하여 공기 내의 산소 농도를 증가시키거나 먼지를 제거 할 수 있도록 하는 미세조류를 이용한 야외 공기 클리어 장치를 제공하는 것이다.

SUSTAINABLE CURTAIN WALL

Resumen de: US2025084355A1

A microalgae curtain wall includes photobioreactors, an interior glass panel, an exterior glass panel, and transoms. The photobioreactors are adapted to receive sunlight and carbon dioxide to grow microalgae received therein. The exterior glass panel is offset from the interior glass panel forming a gap therebetween. The transoms hold the interior glass panel and the exterior glass panel therebetween. The transoms suspend the photobioreactors in the gap and between the interior glass panel and the exterior glass panel.

MICROALGAE-BASED SOIL INOCULATING SYSTEM AND METHODS OF USE

Resumen de: US2025081908A1

Some embodiments include a microalgae culturing system including a bioreactor adapted to propagate microalgae in a culture solution using in combination at least one of natural and artificial light, and at least one nutrient including at least a carbon source, where the microalgae are freely suspended in and form part of the culture solution. A microalgae feed source is coupled to the bioreactor and a first controller between a water conditioning assembly and the bioreactor. The water conditioning assembly is coupled as an input of supply water to the bioreactor, and configured to condition the supply water to a specified purity that enables substantially unhindered growth of the microalgae in the culture solution to a specified concentration, and the first controller is configured to control supply of the microalgae feed source to the bioreactor.

Screening method of floating microalgae suitable for floating culture and floating culture method of microalgae

Resumen de: CN119592438A

The invention relates to the field of microalgae, and discloses a floating microalgae screening method suitable for floating culture and a microalgae floating culture method.The screening method comprises the steps that microalgae is inoculated and then cultured for 24 h or above, then standing is conducted for 6-12 h, the proportion of the dry weight of algae cells floating within 1 cm of the liquid level to the total dry weight of algae is measured, and the total dry weight of the algae is calculated according to the ratio of the dry weight of the algae cells floating within 1 cm of the liquid level to the total dry weight of the algae; screening microalgae with the proportion of more than 25wt% to obtain floating microalgae; wherein the culture time enables the OD (optical density) of the algae in the algae liquid to reach more than 0.2; wherein the standing condition is as follows: the illumination intensity is 20000 to 40000 lux. The screened spirulina can be used for floating culture, so that the biomass equivalent to that under a stirring culture condition can be obtained while the energy consumption caused by driving the spirulina liquid is greatly reduced.

Organic wastewater treatment device coupling photocatalysis and microalgae carbon sequestration

Resumen de: CN119591286A

The invention discloses an organic wastewater treatment device coupling photocatalysis and microalgae carbon sequestration. The organic wastewater treatment device comprises a photocatalytic degradation device, a microalgae carbon sequestration device and a light guide nuclear pore filter membrane, the front end of the photocatalytic degradation device is provided with a water inlet, and the tail end is provided with a water outlet of which the pipe diameter is smaller than that of the water inlet; the light guide nuclear pore filter membrane is mounted at the top of the photocatalytic degradation device above the baffle plate; a feeding hole is formed in the top of the microalgae carbon sequestration device; a detachable visible light emitting plate is arranged in the microalgae carbon sequestration device. According to the method, electricity is generated in the photocatalytic degradation process, waste recycling is achieved, and generated carbon dioxide provides a carbon source for carbon sequestration microalgae. The microalgae absorb carbon dioxide generated by photocatalysis through photosynthesis. The microalgae cells are converted into energy substances such as biodiesel while realizing emission reduction, so that the effects of saving energy, reducing emission and improving the water treatment efficiency are realized.

Transgenic synechocystis algal strain with enhanced stress resistance and application of transgenic synechocystis algal strain in sewage treatment

Resumen de: CN119592601A

The invention discloses a transgenic synechocystis strain with enhanced stress resistance and application of the transgenic synechocystis strain in sewage treatment, and belongs to the technical field of microorganisms. According to the invention, the MntH gene is integrated into the genome of the synechocystis PCC6803, so that the transgenic synechocystis PCC6803 is constructed. Through stress of Cr < 6 + > metal ions and hydrogen peroxide, the difference of stress resistance between algae strains before and after transformation is verified. The result shows that the stress resistance of the synechocystis strain is effectively improved by inserting the functional element gene MntH into the genome of the synechocystis PCC6803. Under stress culture of hydrogen peroxide or Cr < 6 + > metal ions, the transgenic algal strain shows better stress resistance, the growth condition is better than that of a wild algal strain, and meanwhile, the content of photosynthetic pigment, protein and the like related to the growth of the transgenic algal strain is higher than that of the wild algal strain. The invention provides a technical means for constructing transgenic algal strains with enhanced stress resistance and researching physiological and metabolic functions of microalgae.

Method for fixing frequent peak regulation gas power plant flue gas carbon dioxide through chlorella

Resumen de: CN119592425A

The invention relates to a gas power plant flue gas treatment technology, and aims to provide a method for fixing frequent peak regulation gas power plant flue gas carbon dioxide through chlorella. The method comprises the steps that high-temperature flue gas of a gas power plant is cooled and filtered, obtained reaction gas is introduced into a chlorella carbon sequestration system, the chlorella carbon sequestration system is composed of a high-carbon grease algae powder area, a medium-carbon protein algae powder area and a low-carbon starch algae powder area, and each area comprises a photobioreactor containing chlorella liquid and a culture medium; sequentially connecting the photobioreactors of the three subareas so that the photobioreactors operate in a series connection manner; the change of the growth stage of chlorella is influenced by changing different nitrogen element content conditions and illumination conditions, so that the growth carbon sequestration metabolic pathway of chlorella is regulated and controlled in the face of CO2 with different concentrations. According to the invention, the growth habit adjustment of chlorella can be controlled by using different nitrogen environments and illumination conditions, so that the microalgae carbon sequestration system can adapt to the CO2 concentration change in a wider range.

Genetically engineered algae for inhibiting protozoa as well as construction method and application of genetically engineered algae

Resumen de: CN119592426A

The invention discloses a genetically engineered algae for inhibiting protozoa and a construction method and application thereof, and is characterized in that the genetically engineered algae is phaeodactylum tricornutum into which an expression plasmid pPha-T1-eGFP-Linker-EP2 is introduced, and the nucleotide sequence of the expression plasmid is as shown in SEQ ID NO: 7. The construction method comprises the following steps: artificially synthesizing an EP2 coding sequence optimized by a codon; a step of inserting the expression vector into the downstream of the eGFP of the expression vector, and expressing a plasmid pPha-T1-eGFP-Linker-EP2; the method comprises the following steps of: electrically transforming expression plasmids into phaeodactylum tricornutum, and coating transformed phaeodactylum tricornutum cells on an f/2 plate culture medium for culturing and screening positive algae strains to obtain the genetically engineered algae for inhibiting protozoa, and has the advantages that the large-scale culture efficiency and success rate of microalgae are improved, and the genetically engineered algae have a strong inhibition effect on Tophelenium sectorius and Tophelenium lakeri.

Blue-green algae separation and purification method

Resumen de: CN119570683A

The invention provides a cyanobacteria separation and purification method. The method comprises the following steps: collecting a water sample; diluting the water sample; a step of culturing; a selection step; selecting a culture hole only with a single filament and without other cells by using a microscope, selecting a single algal filament from the remaining culture holes under the microscope by using a glass capillary tube, removing impurities and foreign matters attached to the surfaces of the algal cells, and transferring the algal cells into another culture hole for continuous culture; and enlarging the culture step. According to the method, the dilution culture method and the capillary separation method are combined for separation and purification of the cylindrospora, so that the separation and purification efficiency is improved.

Combined carbon sequestration method for treating radioactive strontium pollution of seawater by porphyridium

Resumen de: CN119569240A

The invention relates to the technical field of bioengineering, in particular to a combined carbon sequestration method for treating radioactive strontium pollution of seawater by porphyridium. The method comprises the following steps: inoculating a porphyridium strain into a radioactive strontium polluted seawater culture medium for treatment, adding a certain content of inorganic salt and trace element solution, continuously illuminating, and controlling the temperature, illumination intensity, sterile mixed gas ventilation rate and carbon dioxide ventilation concentration to realize the effect of treating seawater radioactive strontium pollution by porphyridium and combining carbon sequestration. The concentration of strontium element in seawater and the fixation of carbon dioxide are realized by utilizing the growth of porphyridium. According to the method, microalgae carbon sequestration is combined with wastewater treatment and biofuel production, so that the method has remarkable environmental and economic advantages, and the production cost and the energy consumption can be reduced to a certain extent. The method is easy to operate and low in cost and has certain universality.

Chlorella pyrenoidosa mutant strain and application thereof

Resumen de: CN119570629A

The invention relates to the technical field of microalgae biology, in particular to a chlorella pyrenoidosa mutant strain and application thereof. According to the invention, a mutagenesis screening mode is adopted to obtain a chlorella pyrenoidosa mutant strain which is named as RMCP012, the chlorella pyrenoidosa mutant strain can still grow quickly after being continuously cultured for one year and is stable in character, and the protein content of the chlorella pyrenoidosa mutant strain is equivalent to that of a wild type chlorella pyrenoidosa mutant strain. Meanwhile, the algal strain of the mutant strain is light green, the decoloring process of industrial production of algal source protein is greatly reduced, the industrial cost is reduced, and the mutant strain is a high-quality algal strain capable of being used for industrial production of protein. The invention further relates to a heterotrophic culture mode of the chlorella pyrenoidosa, so that the chlorella pyrenoidosa can grow quickly, and protein with a relatively high level can be accumulated.

Microalgae saline-alkali soil conditioner and application thereof

Resumen de: CN119570630A

The invention discloses a microalgae saline-alkali soil conditioner and application thereof, and belongs to the technical field of microalgae saline-alkali soil conditioners. The microalgae saline-alkali soil conditioner disclosed by the invention is prepared from three microalgae which are respectively chlorella sorojin, nodularia harneri and chlamydomonas reinhardtii, and the volume percentages of the three microalgae are respectively 40 to 60 percent, 20 to 30 percent and 20 to 30 percent. The invention further provides a method for improving saline-alkali soil by using the microalgae saline-alkali soil conditioner, after the microalgae saline-alkali soil conditioner is used, the saline-alkali content of the soil can be effectively reduced, the salt content of a saline-alkali soil plough layer is reduced by 10%-30%, and the pH value is reduced by 0.2-0.8. The product and the method provided by the invention have good application prospects in the aspect of saline-alkali soil improvement, and are worthy of vigorous popularization.

Method for enhancing sewage carbon sequestration performance of bacterium-algae system

Resumen de: CN119569238A

The invention discloses a method for enhancing the sewage carbon sequestration performance of a bacterium-algae system, and belongs to the technical field of sewage treatment pollution reduction and carbon reduction. According to the invention, the hydrogen production type composite photocatalytic material is used as a biological carrier for treating sewage by a bacteria-algae symbiotic system, so that the problem that microalgae are subjected to light inhibition under sunlight is effectively solved on the basis of ensuring the sewage treatment effect, thereby remarkably improving the light energy conversion efficiency of the microalgae and reducing the energy consumption of the microalgae. The efficient carbon sequestration of the sewage treated by the bacteria-algae symbiotic system is realized, and meanwhile, the hydrogen generated by the method can be recycled as energy gas, so that multiple effects are achieved. The method is helpful for promoting pollution reduction, carbon reduction and resource utilization of sewage treatment, and has a good application prospect.

Solid microalgae-containing composition for culturing fresh microalgae as well as preparation method and application of solid microalgae-containing composition

Resumen de: CN119570778A

The invention relates to the field of microalgae culture, in particular to a solid microalgae-containing composition for culturing fresh microalgae as well as a preparation method and application of the solid microalgae-containing composition. The composition containing the solid microalgae and used for culturing the fresh microalgae comprises live microalgae cells and food-grade gel. The viable microalgae cells are algae species with an appropriate pH value of 6 to 8.2 and/or algae species with an appropriate pH value of 8.3 to 13. The food grade gel is insoluble in the culture medium of microalgae and can support the growth of live microalgae cells. The composition containing the solid microalgae is aseptically packaged in the soft photobioreactor, and can be preserved for a long time. By utilizing the composition containing the solid microalgae disclosed by the invention, the sanitary fresh microalgae which can be directly eaten can be easily prepared by residents. According to the method, the sanitation problem of preparing the fresh microalgae by an existing liquid culture process is solved, and the tedious processes of harvesting algae cells, washing algae mud, cleaning and maintaining a culture device and the like in liquid culture can be avoided.

Photobioreactor for microalgae culture

Resumen de: CN222574616U

The photobioreactor comprises a bottom plate, a bottom cover is arranged on the bottom plate, a top cover is arranged on the upper side of the bottom cover, a culture cylinder is arranged between the bottom cover and the top cover, installation assemblies are arranged at the upper end and the lower end of the outer side wall of the culture cylinder, lamp tubes are arranged on the two sides of the culture cylinder, and the lamp tubes are connected with the bottom cover. The lamp tube is arranged between the two mounting assemblies, each mounting assembly comprises a mounting ring, the lamp tube is mounted between the two mounting assemblies, so that the lamp tube can rotate at a constant speed on the outer side of the culture cylinder, light emitted by the lamp tube is swept through the side face of the culture cylinder at a constant speed, a light source is prevented from stopping on one side of the culture cylinder for a long time, and the culture cylinder is prevented from being damaged. The microalgae are massively gathered on one side, close to the lamp tube, in the reactor to form shielding, so that the condition that the growth of part of the microalgae is blocked due to non-uniform growth of the microalgae in the reactor is prevented.

Microalgae harvesting device based on algal-bacterial symbiosis

Nº publicación: CN222574660U 07/03/2025

Solicitante:

ENERGY RES INSTITUTE OF JIANGXI ACADEMY OF SCIENCES
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Resumen de: CN222574660U

A microalgae harvesting device based on algal-bacterial symbiosis comprises a reaction barrel (3), a first culture barrel (4), a second culture barrel (5), a mounting seat (1) and a valve (2). The reaction barrel, the first culture barrel and the second culture barrel are mounted on a circular mounting seat in a triangular shape; a valve is arranged on the base between every two barrels, and the valves are respectively connected with the lower parts of the two adjacent barrels through pipelines; a mounting cover (7) is arranged at the upper part of each barrel, a driving assembly (8) is mounted on each mounting cover, and the driving assemblies are connected with the stirrers in the barrels. The device disclosed by the utility model is relatively high in overall integration, the overall occupied space of the device is reduced, an operator can place the device conveniently during use, in the specific operation process, the product conveying time can be shortened, unnecessary loss is avoided, the product is conveyed by adopting an independent pipeline, and the doping problem caused by circulating conveying of the same pipeline can be avoided.