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Self-cleaning bio-membrane reactor for microalgae cultivation

Resumen de: CN121538053A

The invention relates to the technical field of cooling towers, in particular to a self-cleaning bio-membrane reactor for microalgae cultivation. Comprising a culture sleeve, a support, a liquid inlet pipe, a liquid discharge pipe, an air inlet pipe and an exhaust pipe, two sets of cleaning mechanisms are arranged in the culture sleeve in an array mode, the cleaning mechanisms are communicated with the air inlet pipe, and the cleaning mechanisms are used for cleaning microalgae attached to the inner wall of the culture sleeve in the culture stage. Microalgae attached to the inner wall of the culture sleeve are scraped through rotation of the scraper, outer air holes in different positions of the scraper are alternately opened by means of periodic reciprocating movement of the air guide arc plate, directional release of air is achieved, the air released from the outer air holes can disperse the scraped microalgae, the microalgae are diffused into algae liquid, the situation that the local concentration is too high is avoided, and therefore the microalgae can be effectively degraded. And moreover, the released air can be located deep in the algae liquid, the air floating path is prolonged, the retention time is prolonged, and the disturbance effect on the algae liquid is remarkably improved.

Chlorella sorojin and application thereof

Resumen de: CN121538080A

The invention discloses chlorella sorojin and application thereof, and belongs to the technical field of microalgae biological fertilizers. The Chlorella sorokiniana is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.46635, the preservation date is September 15, 2025, the preservation address is Institute of Microbiology, Chinese Academy of Sciences, Beijing, China, the postal code is 100101, and the Chlorella sorokiniana is classified and named as Chlorella sorokiniana. The screened chlorella sorojin can release substances capable of improving the growth quality of crops, and also has the effects of regulating soil microflora and releasing IAA (Indoleacetic Acid). The chlorella sorojin biological fertilizer can increase the nutrient content of soil, increase the oxygen content in the soil and promote the growth of beneficial microorganisms in the soil; the chemical fertilizer consumption is reduced; the crop growth quality is improved; and no pollution is caused to the environment.

Preparation method of Pickering emulsion with lutein embedded in microalgae

Resumen de: CN121533524A

The invention provides a preparation method of Pickering emulsion with lutein embedded in microalgae, and relates to the technical field of Pickering emulsion preparation.The preparation method comprises the steps that lutein is dissolved in oil to be mixed in a dark place, and an oil phase containing the lutein is obtained; schizochytrium limacinum particles and spirulina particles are dissolved in water, uniform stirring is performed, a water phase containing microalgae particles is obtained, and the microalgae particles comprise the schizochytrium limacinum particles and the spirulina particles; uniformly mixing the oil phase and the water phase to obtain a lutein-embedded Pickering emulsion; wherein the lutein is embedded by the Pickering emulsion, so that the lutein is physically isolated. According to the preparation method provided by the invention, through a Pickering emulsion system in which the lutein is stably embedded by the microalgae particles, not only is the bioavailability of the lutein improved, but also the application range of the microalgae emulsion is expanded.

Culture medium for cyanobacteria

Resumen de: PL449495A1

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

Method for synthesizing PHA (polyhydroxyalkanoate) by coupling membrane-mediated algae photosynthetic oxygen production with mixed flora

Resumen de: CN121518594A

The invention relates to the technical field of pollutant resource utilization, in particular to a method for synthesizing PHA by coupling membrane-mediated algae photosynthetic oxygen production with mixed flora. According to the method disclosed by the invention, the double-sided hydrophobic membrane is used as a gas-phase mass transfer interface to construct a separated double-chamber reactor system in which microalgae and florae are spatially separated but are gas-coupled, so that a traditional aeration oxygen supply mode is replaced, and the energy consumption in the reaction process is effectively reduced. By optimizing the key process parameters of the microalgae-flora, the PHA content which is equivalent to that under traditional aeration oxygen supply is realized, the energy consumption in the PHA biosynthesis process is remarkably reduced, the carbon emission of the process is remarkably reduced, and the sustainable development of the biodegradable material industry is positively promoted.

Carbon capture-based carbon sequestration microalgae-biofuel co-production system and working method thereof

Resumen de: CN121513595A

The invention discloses a carbon capture-based carbon sequestration microalgae-biofuel co-production system and a working method thereof. According to the system, the carbon capture system provides a carbon source and a clean water source for the microalgae culture system, grease in microalgae is converted into biomass fuel oil through the biomass fuel oil production system, the biomass fuel oil provides fuel for the boiler system, the boiler system supplies heat to the microalgae culture system, flue gas generated by the boiler system enters the carbon capture system, and the carbon capture system is connected with the microalgae culture system. All the resources of all the systems are fully utilized, the energy consumption of the system is reduced while waste is treated with waste and utilized, the stability and flexibility of the system are improved, resource co-production and resource optimization are achieved, a new zero-emission industrial production mode is constructed, and efficient utilization of energy is achieved.

Device for treating livestock and poultry breeding wastewater through microalgae

Resumen de: CN223906674U

The utility model belongs to the technical field of microalgae culture and culture wastewater treatment, and particularly relates to a device for treating livestock and poultry culture wastewater by using microalgae, aiming at solving the problems that culture facilities are outdated, a large-scale culture technology is lacked and the like when the culture wastewater is treated by using the microalgae in the prior art. In order to solve the problem that industrial algae culture facilities and equipment are lack of related research, the utility model provides the following scheme: the device comprises an environment regulation and control system, a pumping system, and a pretreatment device, an airlift photobioreactor and a microalgae culture raceway pond which are sequentially connected with the pumping system; and the gas filtering aeration device and the environment regulation and control system are arranged on one side of the airlift photobioreactor and the microalgae culture raceway pond. According to the utility model, the problems of large-scale culture and standardized industrial microalgae culture production are solved; c, N, P and other nutrients in the culture wastewater are captured in an ecological chain manner and converted into microalgae products with high added values, so that resource utilization of the culture wastewater is realized.

Artificial cyanobacteria crust inoculant as well as preparation method and application thereof

Resumen de: CN121518308A

The invention discloses an artificial cyanobacteria crust inoculant as well as a preparation method and application thereof. The artificial cyanobacteria crust inoculant comprises a strain, a mixed matrix and water, the strain is composed of a blue-green algae group and a bacterial group; the mixed matrix comprises sandy soil and loam; the biomass of the blue-green algae group is 20-40 g/m < 2 >, and the biomass of the bacterial group is 150-250 g/m < 2 >. According to the method disclosed by the invention, the blue-green algae and the mixed strains are combined for use, so that the problems that a biological synergistic micro-ecological structure cannot be formed due to single biological composition of a traditional artificial blue-green algae crust inoculant, and ecological restoration of a sand area lags behind and is long in period are solved; the invention aims to construct a desert cyanobacteria crust inoculant formula adaptive to a compound biological group so as to accelerate ecological restoration of a desert area.

Carotenoid production methods using raceway pond systems

Resumen de: GB2643103A

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

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

Resumen de: EP4692297A2

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

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

Resumen de: ES3055409A1

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

Device and method for improving protein content of microalgae by utilizing agricultural wastewater culture

Resumen de: CN121495666A

The invention provides a device and a method for improving microalgae protein content by agricultural wastewater culture, the device comprises a wastewater treatment assembly, a microalgae culture assembly, a microalgae collection assembly and a connection assembly, the wastewater treatment device pretreats wastewater through graded filtration and adsorption, and the microalgae culture device uses a spherical culture bottle, a honeycomb assembly and a light guide path to regulate and control the environment. The collecting device collects microalgae through the flusher and the filter membrane, and the connecting assembly realizes device linkage; due to the design of the light guide path, the light intensity in the microalgae culture device is consistent, and the light guide path is combined with the honeycomb microalgae culture assembly, so that the generation of active oxygen is reduced. Through nitrogen-deficient and nitrogen-rich culture and in combination with plant hormone regulation, the protein content of the microalgae is increased. According to the method, the removal rates of four key water quality indexes such as total nitrogen, total phosphorus and COD in the agricultural wastewater all exceed 80%, the protein content of the microalgae is increased, the microalgae can be used as energy or feed, and the purposes of waste recycling and low carbon are achieved.

Microalgae easy to digest for thermostatic animals

Resumen de: CN121495927A

The invention belongs to the technical field of biology. The invention particularly discloses a microalgae starting element with a thermosensitive transcription characteristic and an application of the microalgae starting element. According to the present invention, the microalgae capable of improving the digestion efficiency of the thermostatic animal is obtained by carrying out gene modification on the microalgae, and the microalgae starting element with the thermosensitive transcription characteristic is PNoED, and has the following characteristics: 1) the microalgae starting element has a base sequence represented by SEQ ID NO: 1; or (2) the nucleotide sequence has more than 95% of homology with the nucleotide sequence limited by SEQ ID NO: 1. The starting element obtained by the invention is reported for the first time in microalgae, and the starting element has transcription driving force obviously higher than 25 DEG C at 35 DEG C. At the temperature of 35 DEG C, cell walls of the microalgae obtained by the method are thinned, so that the microalgae are easily digested by constant-temperature animals such as mammals, and the method has wide application potential in the industries of food, health care products and medicines.

Artificial bionic leaf carbon sequestration and oxygen production device

Resumen de: CN121489201A

The invention provides an artificial bionic leaf carbon sequestration and oxygen production device which comprises an artificial leaf plate system, a microalgae-containing organism culture system is arranged in the artificial leaf plate system, and the artificial leaf plate system is connected with a culture solution conveying system and an oxygen collection system; microalgae is used as an air purification carrier, carbon dioxide is fixed and oxygen is generated by utilizing the photosynthesis effect, and meanwhile, carbon-containing energy is generated through conversion. The common effects of purifying air, delaying global warming and collecting energy materials are achieved to a certain extent, and meanwhile cross compensation and common combination of the textile collar material field, the biological field, the environmental engineering field and the energy field are promoted.

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

Resumen de: KR20260019117A

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

Method for quickly starting phycomycete granular sludge based on light and dark regulation and directional inoculation

Resumen de: CN121494204A

The invention relates to a method for rapidly starting phycomycete granular sludge based on light and dark regulation and directional inoculation, and belongs to the technical field of environmental bioengineering and water pollution control. According to the method, functional microorganisms are directionally enriched and pre-cultured, activated sludge enriched with phosphorus-accumulating bacteria and oxygen-producing cyanobacteria are jointly inoculated into a reactor, a sequencing batch operation mode of staged dynamic light and dark period regulation is adopted, and granulation is enhanced by combining hydraulic selection pressure. The problems that an existing phycomycete aerobic granular sludge technology is high in illumination dependence, poor in system stability and too long in starting period are solved, the system stably reaches the standard, aeration energy consumption is greatly reduced compared with a traditional technology, the nitrogen and phosphorus removal efficiency is synchronously improved, and the method is suitable for industrial and municipal sewage treatment and has wide application prospects. And the method has remarkable energy-saving advantage and engineering application value especially for treatment scenes of wastewater containing refractory organics.

Acetate-resistant urea-resistant chlorella as well as breeding method and application thereof

Resumen de: CN121495705A

The invention discloses chlorella capable of resisting acetate and urea and a breeding method and application thereof, and relates to the technical field of microorganisms, the chlorella is a Sorokiniana mutant strain, the classification name of the chlorella is Chlorella sorokiniana-TongWei-01, the chlorella is preserved in the China General Microbiological Culture Collection Center at 2025-12-1, and the preservation number of the chlorella is CGMCC NO. The address of the preservation unit is Institute of Microbiology, Chinese Academy of Sciences, No.3, No.1 Yard, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No.46630. According to the method, large-scale culture can be performed by taking acetic acid/sodium acetate as a unique carbon source and urea as a unique nitrogen source, the method has excellent acetic acid utilization efficiency and urea tolerance, toxicity interference is resisted while two substrates are efficiently converted, high-density culture supported by a cheap carbon-nitrogen source is realized, and a core algae species support is provided for large-scale production of microalgae.

Microalgae carbon sequestration system and microalgae carbon sequestration method thereof

Resumen de: CN121472043A

The invention discloses a microalgae carbon sequestration system and a microalgae carbon sequestration method thereof, and belongs to the technical field of microalgae carbon sequestration. The system comprises purified ribulose-1, 5-diphosphate carboxylation oxidase (Rubisco), purified ribulose-1, 5-diphosphate carboxylation oxidase (Rubisco), purified ribulose-1, 5-diphosphate carboxylation oxidase (Rubisco), purified ribulose-1, 5-diphosphate carboxylation oxidase (Rubisco) The invention discloses a chitosan-silicon dioxide hybrid gel microsphere for immobilizing ribulose-1, 5-diphosphate carboxylation oxidase, the particle size of the chitosan-silicon dioxide hybrid gel microsphere is 150-250 microns, the porosity is 40-60%, the pore diameter is 5-20 nm, and carbonic anhydrase is optionally contained in the chitosan-silicon dioxide hybrid gel microsphere; the living microalgae cells are suspended in the culture solution, and the living microalgae cells can freely enter and exit from the peripheral area of the chitosan-silicon dioxide hybrid gel microspheres and cannot penetrate through pore channels of the chitosan-silicon dioxide hybrid gel microspheres; and the photobioreactor is used for accommodating a culture solution and providing illumination for the living microalgae cells. According to the invention, the increase of microalgae biomass can be realized, and the efficiency of fixing CO2 by microalgae cells is improved.

Microalgae bioreactor, wastewater treatment method and wastewater treatment device

Resumen de: CN121470690A

The invention relates to the technical field of wastewater treatment, and provides a microalgae bioreactor, a wastewater treatment method and a wastewater treatment device. The microalgae bioreactor comprises a shell and a hydrogel loading net, the shell is filled with algae liquid, a gas inlet pipe, a water inlet pipe and a light source are further arranged on the shell, and the gas inlet pipe is used for introducing carbon source gas into the shell; the water inlet pipe is used for introducing wastewater into the shell, and the light source is used for providing illumination into the shell. The multiple hydrogel loading nets are arranged in the algae liquid in the shell, and materials of the hydrogel loading nets contain at least one of hydroxyl, sulfonic acid groups and carboxyl. The microalgae bioreactor disclosed by the invention is high in microalgae reaction efficiency and can be used for conveniently removing microalgae.

Recovery device for microalgae wastewater treatment

Resumen de: CN121466663A

The invention relates to the technical field of wastewater treatment, and discloses a microalgae wastewater treatment recovery device which comprises a filter vat, a motor is fixedly connected to the top of the filter vat, a transmission rod is fixedly connected to the output end of the motor, a fixing ring is fixedly connected to the surface of the filter vat, and supporting legs are fixedly connected to the surface of the fixing ring. By arranging the vibrating mechanism, a motor is started firstly, when the motor is started, a transmission rod is driven to rotate, when the transmission rod rotates, a rotating shaft is driven to rotate, when the rotating shaft rotates, a vibrating roller is driven to rotate, and when the vibrating roller rotates, the surface of the vibrating roller rubs with the surface of a contact roller to generate a vibration sense; when the contact roller makes contact with the vibration roller and pushes the driven roller in the mutually-away direction, the driven roller slides on the inner wall of the mounting cylinder in the mutually-away direction when being pushed, and when the driven roller moves and drives the sliding ring to move, the sliding ring drives the sliding rod to slide on the inner wall of the supporting frame.

Light-dark alternating folded plate type raceway pond photobioreactor for sewage treatment

Resumen de: CN223879557U

The utility model relates to a light-dark alternating folded plate type raceway pond photobioreactor for sewage treatment, which comprises an S-shaped bent raceway pond, a water inlet of the raceway pond is connected with a water inlet pump, a water outlet of the raceway pond is connected with a water storage barrel in series, and the outer surface of the raceway pond is a shading layer. A folded plate reaction area and a light-dark alternating reaction area are sequentially arranged in the runway pond from bottom to top, the folded plate reaction area is provided with a plurality of folded plates arranged at intervals in the length direction of the runway pond, the light-dark alternating reaction area is provided with simulation light sources and a plurality of light shielding plates, and the simulation light sources are arranged above the light shielding plates at intervals. The shading plates are arranged in the horizontal direction, and light-transmitting intervals are arranged between the shading plates. The folded plate reaction area promotes homogenization of algae liquid in the raceway pond and substances in sewage, light-dark alternating irradiation is carried out on microalgae in combination with shading plates arranged at intervals in the light-dark alternating reaction area and light source irradiation, the photosynthesis and breathing efficiency of the microalgae is improved, treatment of refractory pollutants by the microalgae is promoted, and conversion and uti

Blue-green algae tRNA switch and application thereof

Resumen de: CN121472212A

The invention relates to the technical field of biology, in particular to a cyanobacteria tRNA switch and application thereof. The tRNA anti-escape switch suitable for blue-green algae is developed, meanwhile, the expression application condition of blue-green algae genes is screened, appropriate reporter genes are selected, and a reporting system matched with the tRNA anti-escape switch is constructed. The tRNA anti-escape switch and the tRNA anti-escape switch report system provided by the invention can be used for blue-green algae, a traditional gene regulation mode of the blue-green algae is changed, and a new thought and a new method are provided for blue-green algae gene editing.

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

Resumen de: WO2026030733A1

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

METHOD FOR PRODUCING MICROALGAE CONCENTRATES WITH LOW VISCOSITY

Resumen de: US20260035654A1

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

Synthesis method of algae integrated oxygen supply platform based on OLED photoelectric shielding material modification

Nº publicación: CN121445865A 03/02/2026

Solicitante:

XINXIANG MEDICAL UNIV
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Resumen de: CN121445865A

The invention relates to the technical field of photodynamic therapy, in particular to a synthesis method of an algae integrated oxygen supply platform based on OLED photoelectric shielding material modification, and the method comprises the following steps: step 1, selecting a photoelectric material based on pentaperylene diimide (PPD), including PPD derivatives modified by PPD-Se, PPD-Te and PPD-Br and containing heavy atoms as a core photosensitizer; step 2, mixing a photoelectric material based on PPD, a PEG derivative containing PPD-Se and a responsive chemical bond, and DSPE-PEG-S-S-NHH through a coprecipitation method, and stirring for 1-6 hours at the temperature of 30-70 DEG C to form PPD type photoelectric material nano-particles with the particle size within the range of 80-120 nm, namely PPD-based NPs; step three, pretreatment and compounding of green algae: chlorella, scenedesmus and chlamydomonas are used as oxygen supply carriers, the surface of the green algae is modified through carboxymethyl chitosan CMCS, and carboxyl groups are introduced; and step 4, combining the modified PPD type photoelectric material nano particles with the microalgae through amido bonds, so as to form the microalgae-photoelectric material composite system Alga (at) PPD-based.