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CLOSED PHOTOBIOREACTOR SYSTEM

Resumen de: WO2025239861A1

The present invention relates to the bioreactors, more specifically, to a closed photobioreactor system, characterized in that said closed photobioreactor system comprises at least one LED (1) that supplies the light energy required for the microalgal photosynthesis, a pipeline (4) that delivers to the system the carbon dioxide (CO2) containing air bubbles coming from a pump (2), a separator (3) that enables the harvest and the collection of the microalgae, and a solar panel or wind turbine that is intended to supply the electric power for the system.

AN AIR POLLUTION-REDUCING ALGAE PANEL MECHANISM INTEGRATED INTO A BUILDING FAÇADE

Resumen de: WO2025233717A1

An algae-based air pollution reduction mechanism integrated into a building façade comprises photobioreactor panels (20) containing microalgae to absorb carbon dioxide (CO2), produce biomass, and release oxygen (O2). An air suction mechanism (10) captures polluted air and directs it to a central laboratory (50), where CO2 is separated and supplied to the panels. A gray water collection system stores and mixes gray water with algal powder for the panels. A panel rotation mechanism (40) optimizes solar absorption, while a degassing unit extracts and releases O2. Sensors monitor pollution levels, activating the air suction mechanism (10) when pollutants exceed a threshold, facilitating CO2 conversion into biomass and O2 through the photobioreactor panels (20).

SYSTEM AND METHOD FOR PURIFYING WATER BODY BY MEANS OF COUPLED DENITRIFICATION WITH PLANTS, BACTERIA AND ALGAE

Resumen de: WO2025232122A1

The present disclosure relates to the technical field of water body denitrification and ecological restoration. Disclosed are a system and method for purifying a water body by means of coupled denitrification with plants, bacteria and algae. The system comprises a water intake pipe (1), a microalgae growth tank (2), an algae-bacteria solution tank (6), an influent plant tank (8), a main reaction tank and an effluent tank (14) which are sequentially connected, wherein the influent plant tank (8), the main reaction tank and the effluent tank (14) are each independently equipped with plants (9) containing denitrifying bacteria; the main reaction tank comprises a deoxygenation tank (10), a facultative anaerobic tank (11) and an anoxic tank (12) which are sequentially connected; and the main reaction tank is further provided with a bacteria solution return pipe (13), and the bacteria solution return pipe (13) is connected to an inlet of the algae-bacteria solution tank (6). In the system and method, a carbon source can be naturally and continuously supplied; and the system and method operate with stability and high reliability, and has strong resistance to shock loads.

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

Resumen de: US2025340806A1

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.

SUSTAINABLE PHOTOBIOREACTOR

Resumen de: WO2025227221A1

Photobioreactors are described herein. The photobioreactors include a vessel for cultivating microalgae. The vessel defines an interior chamber comprising a culture containing medium. The vessel has at least one transparent wall to permit passage of light of a frequency necessary to promote growth of the microalgae in the culture containing medium. The vessel also includes a plurality of sensors, each sensor being configured to monitor at least one environmental condition within the photobioreactor, and at least one flow generator positioned within the vessel. The photobioreactor also includes a controller communicatively coupled to each of the plurality of sensors and the at least one flow generator. The controller is configured to: receive sensor data from each of the plurality of sensors, apply a mathematical model to the sensor data to determine when to adjust at least one environmental condition within the photobioreactor and adjust one or more components of the photobioreactor.

EXTRACELLULAR VESICLES FROM MICROALGAE, THEIR BIODISTRIBUTION UPON INTRANASAL ADMINISTRATION, AND USES THEREOF

Resumen de: US2025339483A1

Provided are compositions containing microalgae extracellular vesicles (MEVs) formulated for intranasal delivery, whereby, upon intranasal administration the MEVs traffic through specific routes following intranasal administration to specific regions in the brain via the olfactory nerve and throughout the lateral olfactory tract (LOT) to interconnected brain regions. The MEVs traffic via neuronal axonal transport. The MEVs have the ability to cross-over synapses including: (i) the synapses between the olfactory sensory neurons (OSN) and the mitral/tufted neurons; (ii) the synapses between the mitral/tufted neurons and the local neurons in the various brain regions colonized by the lateral olfactory tract (LOT); and (iii) the synapses between the neurons in the brain regions colonized by the LOT and neurons from the frontal cortex, the hippocampus, the thalamus, and the hypothalamus. The compositions contain extracellular vesicles from microalgae (MEVs) that are loaded with bioactive cargo for treating, detecting, diagnosing, or monitoring a disease, disorder, or condition of the brain or involving the brain, particularly providing neuronal delivery of the cargo. The compositions and methods have a variety of applications as therapeutics and diagnostics for treating, diagnosing, and monitoring a disease, disorder, or condition of the brain or involving the brain. The compositions can be used in methods and uses for treating cancers involving the brain, and can be used, for exa

DEVICE AND METHOD FOR CAPTURING ATMOSPHERIC POLLUTANTS

Resumen de: WO2025227212A1

The invention relates to a structure and method for air purification and addresses a need in the field of sustainability, providing a sustainable alternative for improving air quality with emphasis on the capture of CO2 and carbon monoxide using aquatic organisms, microalgae, and cyanobacteria.

USE OF MICROALGAE AND MICROALGAE DERIVED COMPONENTS IN CULTIVATED FOOD PRODUCTION

Resumen de: AU2023416213A1

Provided herein are methods for cultivated food production involving the use of microalgae. The methods include recycling spent cell media that are used to cultivate cells for cultivated food production as well as enriching culture medium used to cultivate the same cells. The microalgae are used to recycle the spent culture medium. The microalgae may be used to extract microalgae derived components to enrich the culture medium. The algae recycling and algae enriched growth media as provided herein may be used with any animal cell culture. In some variations, the microalgae or microalgae derived components may be used as a raw ingredient in the preparation of cell based seafood products. The methods provided herein may be used for the production of seafood products. The methods herein may provide at least one added advantage—the use of algae may add nutrients, flavors, and aromas typically desired in seafood.

Poctocephalus sp. And method for producing fucoxanthin by using Poctocephalus sp.

Resumen de: CN120866074A

The invention belongs to the technical field of microalgae biology, and in particular relates to thaurita procumbens and a method for producing fucoxanthin by utilizing the thaurita procumbens. The invention relates to a phalaenopsis palustris which is named PCSM-1 and is preserved in the China Center for Type Culture Collection on January 11, 2024, and the preservation number is CCTCC NO: M 2024076. The content of fucoxanthin in the brachythecium cutescens is as high as 1.58 wt%, and the brachythecium cutescens can grow under both a photoautotrophic condition and a heterotrophic condition. The method comprises the following steps: firstly, performing heterotrophic fermentation on the palmaris cutescens so that the palmaris cutescens is rapidly proliferated and fermented; the method comprises the following steps: firstly, carrying out photoautotrophy and heterotrophy induction to quickly accumulate the fucoxanthin, so that the whole process is short in period and low in energy consumption, the yield of the fucoxanthin is far higher than that of the existing microalgae, and the problems of low production efficiency, high cost and the like of the current fucoxanthin can be solved.

Beta-carotene hydroxylase mutant, preparation method and application

Resumen de: CN120866251A

The invention discloses a beta-carotene hydroxylase mutant as well as a preparation method and application thereof, and belongs to the technical field of microalgae gene engineering. Amino acid Cys No. 191 of haematococcus pluvialis beta-carotene hydroxylase is mutated into Ala, amino acid Thr No. 213 of haematococcus pluvialis beta-carotene hydroxylase is mutated into Ala, and the yield of astaxanthin is increased by 1.282 times and 1.268 times respectively. According to the mutant obtained through mutation, the catalytic efficiency and substrate selectivity of beta-carotene hydroxylase are remarkably improved, astaxanthin is produced more specifically through enzymatic reaction, and a key mutation direction is provided for construction of engineering strains for high yield of astaxanthin.

Ecological bait production method and equipment based on food chain

Resumen de: CN120858911A

The invention discloses an ecological bait production method based on a food chain, which comprises the following steps: S1, mixing wine brewing enzyme liquid and culture tail water in proportion, and stirring to form a nutrient medium required by microalgae growth; s2, conveying the nutrient medium into a microalgae culture module, and regulating and controlling illumination and dissolved oxygen conditions; part of microalgae is conveyed to the plankton breeding unit to cultivate plankton to construct a live bait chain; s3, tail water generated by breeding flows back to the plankton breeding unit to serve as a nutrition supplement source of plankton, and closed-loop circulation is achieved.

Bacterial agent for producing methane by fermenting blue-green algae bottom mud

Resumen de: CN120866149A

The invention discloses a cyanobacteria bottom mud fermentation methanogenic bacterial agent, which comprises clostridium butyricum, bacillus amyloliquefaciens and methanosarcina martensii, and is characterized in that the clostridium butyricum accounts for 30-60% of the total number of bacterial cells, the bacillus amyloliquefaciens accounts for 25-50% of the total number of the bacterial cells, and the methanosarcina martensii accounts for 30-60% of the total number of the bacterial cells. The methanosarcina marzeberi accounts for 10%-25% of the total number of bacterial cells. The advanced technology of adding microbial compound bacteria and combining high-temperature and high-pressure hydrolysis and anaerobic digestion technologies is utilized, the biodegradability is improved by destroying the cell structure of organic matter, the efficiency and stability of traditional anaerobic fermentation are remarkably improved, the VS removal rate after pyrohydrolysis fermentation reaches 67.5%-70.4%, the gas production rate in the anaerobic fermentation process after pyrohydrolysis is effectively increased, and the production cost is reduced. The yield of methane can be increased, the water body environment can be improved, recycling of bottom mud resources can be promoted, and green and sustainable ecological restoration is achieved.

Culture medium and culture method for inhibiting microalgae sensitization protein expression

Resumen de: CN120866072A

The invention discloses a culture medium and a culture method for inhibiting microalgae sensitization protein expression. The culture medium comprises the following components: an organic carbon source, a nitrogen source, a phosphorus source and other elements, the culture method comprises the following steps: inoculating algae liquid activated to a logarithmic phase into the culture medium for continuous culture, and adjusting the temperature, illumination intensity, light-dark cycle and culture period of the closed photobioreactor for culture. According to the culture medium composition, element matching of the culture medium is ingeniously coordinated, chromatin remodeling and metabolism reprogramming of the microalgae can be effectively influenced, then carbon flow distribution in glycolysis and tricarboxylic acid circulation is changed, energy metabolism and growth balance are rebuilt, and finally inhibition of sensitization protein expression of the microalgae is achieved. On the basis, microalgae sensitization risk factors are determined, and the expression degree of microalgae sensitization protein is reduced by changing the culture condition combination, so that the edible safety of microalgae is improved.

In-situ online observation device applied to microalgae growth dynamic response process

Resumen de: CN120870119A

The invention provides an in-situ online observation device applied to a microalgae growth dynamic response process. The in-situ online observation device comprises an in-situ online observation device and an automatic shooting system, the in-situ online observation device comprises a culture observation plate, a mainstream micro-channel and a micro-culture chamber; the culture observation plate is transparent; the mainstream micro-channel is arranged on the upper side of the culture observation plate; a flow inlet and a flow outlet are respectively formed in two ends of the main flow micro-channel in the length direction; the plurality of micro-culture chambers are communicated with the main flow micro-channel; the plurality of micro-culture chambers are arranged between the flow inlet and the flow outlet; the automatic shooting system is used for shooting microalgae in the micro-culture chamber; the in-situ online observation device is simple and effective in structure and convenient to manufacture, and has the characteristics that internal nutrients and metabolic oxygen are efficiently transported and transferred, and the nutrients are continuously, stably and uniformly distributed; and in combination with an automatic shooting system, long-time continuous imaging observation can be carried out on the intrinsic dynamic response process of the growth of a plurality of microalgae cells, and theoretical guidance is provided for the maximum growth potential of the microalgae c

Light energy weight self-adaptive microalgae internal and external light source complementary carbon sequestration system

Resumen de: CN120866027A

The invention belongs to the technical field of microalgae carbon sequestration, and particularly relates to a light energy weight self-adaptive microalgae internal and external light source complementary carbon sequestration system, which comprises a light culture assembly made of a transparent material and used as a container for containing algae liquid; the light supplementing assembly is arranged in the light culture assembly; the detection system is used for detecting illumination intensity data, illumination angle data, algae liquid biomass concentration data and light field distribution data in the light culture assembly; the control system is electrically connected with the detection system and the light supplementing assembly, and the control system adjusts the illumination intensity of the light supplementing assembly according to the illumination intensity data, the illumination angle data, the light field distribution data and the algae liquid biomass concentration data. According to the system, the light quality and the light intensity of a light source are accurately regulated and controlled by predicting the light field distribution in the light culture assembly and adjusting the light supplementing intensity of the light supplementing assembly, so that light field reconstruction is realized, stable carbon sequestration of microalgae is assisted, and high-quality target carbon neutralization is realized.

Infrared light driven microalgae photosynthetic carbon sequestration method and application

Resumen de: CN120866183A

The invention discloses an infrared light driven microalgae photosynthetic carbon sequestration method and application, and belongs to the technical field of photosynthetic organism culture.The method comprises the steps that a near-infrared up-conversion nanometer material is dispersed in a microalgae culture medium, and a full-spectrum or near-infrared light source is used for promoting microalgae photosynthetic carbon sequestration; the near-infrared up-conversion nano material is a rare earth nano material with a NaYF4 inert shell structure. According to the method, the overall sunlight utilization efficiency of the microalgae is improved, and the photosynthetic carbon sequestration capacity of the microalgae is finally improved.

MCP transgenic expression vector and application thereof

Resumen de: CN120866369A

The invention belongs to microalgae bioengineering, and particularly relates to an MCP transgenic expression vector and application thereof. The invention provides an MCP recombinant plasmid, the MCP recombinant plasmid is transferred into microalgae for the first time, the microalgae is not only an initial feed but also can be used as an expression vector of an exogenous gene, and the MCP gene of DIV1 is used for preparing a microalgae oral vaccine, so that the vacancy of a medicine for preventing and treating the full-eye iridovirus 1 at present is made up, the homology of medicine and food is realized, and the aim of preventing and treating the full-eye iridovirus 1 is fulfilled. The invention provides an environment-friendly, safe and effective transgenic microalgae vaccine drug, promotes the development of an aquatic vaccine technology, and has far-reaching significance on the stable and sustainable development of global aquaculture industry.

Full-nutrient fresh algae gel for 3D printing and preparation method of full-nutrient fresh algae gel

Resumen de: CN120859151A

The invention provides a preparation method of full-nutrient fresh algae gel for 3D printing, which comprises the following steps: mixing and dissolving starch, a rheological property changing agent, nutritive salt required by microalgae growth and boiling water, adding microalgae cells, and uniformly stirring to form bio-ink for 3D printing. The full-nutrition fresh algae gel not only can support efficient culture of microalgae, but also can be directly used as a full-nutrition fresh algae gel functional food after being subjected to microalgae culture due to the full-food-grade raw materials of the full-nutrition fresh algae gel.

Efficient biological carbon sequestration method and system device for coupling culture of microalgae based on flue gas and by-products after decarbonization by ammonia process

Resumen de: CN120866073A

The invention discloses a high-efficiency biological carbon sequestration method and system device for coupling culture of microalgae based on flue gas and by-products after ammonia decarburization, and the method is characterized in that the flue gas (the temperature is 25-35 DEG C, and the CO2 concentration is 1-5%) after the ammonia decarburization is directly used as a microalgae carbon source, and the by-product ammonium sulfate (the adding concentration in a culture medium is 0.1-2.5 g/L) after the ammonia decarburization is used as a nitrogen source; ammonium bicarbonate (the addition concentration in the culture medium is 0.1-2.5 g/L) is used as a nitrogen source and an auxiliary carbon source, microalgae are inoculated into the prepared culture medium, the flue gas decarbonized by the ammonia process is directly introduced, and photosynthetic culture is carried out. The pH value of a culture medium is monitored in real time, the flow of flue gas obtained after ammonia decarburization and the adding proportion of ammonium bicarbonate and ammonium sulfate are cooperatively fed back and regulated, the pH of a culture system is kept stable, carbon and nitrogen sources are sufficient, high-precision stable control over the culture environment is achieved, and efficient biological carbon sequestration is achieved.

Microalgae culture method

Resumen de: CN120866071A

The invention relates to the technical field of microalgae culture, and discloses a microalgae culture method. The invention relates to a microalgae culture method, which comprises the following steps: (1) in the presence of a fat degradation inhibitor, culturing microalgae species to obtain a microalgae solution; (2) separating, adsorbing and degerming the algae solution to obtain a culture solution; and (3) returning the culture solution to the step (1) for reuse. The method can effectively control the generation of organic matters with a growth inhibition effect in the microalgae culture process, improve the production rate and reduce the culture water consumption.

APPARATUS FOR MICROALGAL OR CYANOBACTERIA GROWTH, METHODS AND USES THEREOF

Resumen de: WO2025224659A1

The present disclosure relates to an apparatus for microalgae and/or cyanobacteria cell culture comprising a unitary body formed from a hydrophobic material; and two or more microcapillary channels extending along the unitary body; wherein the inner surface of the microcapillary channels is coated with nutrients suitable for microalgae and/or cyanobacteria cell culture; and wherein the hydrophobic material is transparent to visible light, and to a kit and sensor thereof. A method for culturing microalgae and/or cyanobacteria in an apparatus comprising a unitary body formed from a hydrophobic material and two or more microcapillary channels extending along the unitary body, wherein the hydrophobic material is transparent to visible light is also disclosed.

LIPID PRODUCING MARINE MICROALGA

Resumen de: WO2024132882A1

The invention provides marine microalgal strain of the Ulvales order of the Ulvophyceae class which have utility in the efficient and environmentally beneficial preparation of triacylglycerides and polyunsaturated fatty acids, which can in turn be used for fuels or feeds.

METHOD FOR THE PREPARATION OF A CYANOBACTERIA EXTRACT COMPRISING PHYCOCYANIN ENRICHED IN TRACE ELEMENTS FROM NATURAL TRACE ELEMENT SOURCES FOR THE PRODUCTION OF FOOD SUPPLEMENTS

Resumen de: WO2024133379A1

The invention relates to a method for preparing a cyanobacterium extract, preferably spirulina, comprising phycocyanin enriched in trace elements. The invention also relates to an extract obtained by the method according to the invention, to a composition comprising said extract and to the use thereof.

Microalgae expanding culture method, microalgae expanding culture system and ecological restoration method

Resumen de: CN120843281A

The invention relates to the technical field of algae culture, in particular to a microalgae expanding culture method, a microalgae expanding culture system and an ecological restoration method. The microalgae expanding culture method comprises the following steps: inoculating a microalgae seed solution into a first culture solution, and carrying out first amplification treatment under the illumination condition of 100-500lux to prepare a first algae seed mixed solution; inoculating the first algae seed mixed solution into a second culture solution, and carrying out second amplification treatment under the illumination condition of 1000-3000 lux to prepare a second algae seed mixed solution; inoculating the second algae mixed solution into a third culture solution, and performing third amplification treatment at the pH value of 6.5-10 to prepare a third algae mixed solution; inoculating the third algae mixed solution into a fourth culture solution, and carrying out fourth amplification treatment under a stirring condition to prepare a fourth algae mixed solution; wherein the volumes of the first culture solution, the second culture solution, the third culture solution and the fourth culture solution are sequentially increased. According to the expanding culture method, the microalgae grow fast, and the culture period can be effectively shortened.

Crust biological agent as well as preparation method and application thereof

Nº publicación: CN120843118A 28/10/2025

Solicitante:

NINGXIA UNIV
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Resumen de: CN120843118A

The invention relates to the technical field of crust preparation preparation, in particular to a crust biological preparation, a preparation method and application thereof, and the preparation method comprises the following steps: S1, preparing a bacillus modifier; s2, preparation of a microalgae-biopolymer mixed solution; s3, primary compounding; and S4, compounding to form the agent. Through the synergistic effect of the bacillus modifier and the microalgae-biopolymer mixed solution, the biological crust forming period is remarkably shortened, the defect that natural recovery is slow (dozens of years) is overcome, meanwhile, the crust forms a compact net-shaped structure and strongly bonds soil particles, and the wind erosion rate is reduced by 50%. The freeze-drying process is improved, the biological activity is better reserved, the stability of the preparation is improved, the preparation is convenient to store and transport, the powder which is crushed and sieved (100 meshes) can be directly scattered, and field planting is further accelerated.