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Microalgae composition and application thereof in fishing and farming integrated planting and breeding

Resumen de: CN120718761A

The invention discloses a microalgae composition and application thereof in fishing and farming integrated planting and breeding, and belongs to the technical field of aquaculture. The microalgae composition disclosed by the invention comprises chlorella, spirulina, nostoc, anabaena nitrogen fixation, schizochytrium limacinum and nannochloropsis oculata. The mass ratio of the chlorella to the spirulina to the nostoc to the nitrogen-fixing anabaena to the schizochytrium to the nannochloropsis oculata is 1: (4-5): (1: 1)-(2: 2.2-2.4): (3.4-3.6); the microalgae composition can be added into aquaculture feed to be applied to fishery and agricultural comprehensive planting and breeding; the fishing and farming integrated planting and breeding at least comprises rice-fish symbiosis; after the microalgae composition provided by the invention is applied to fishing and farming integrated planting, the growth of crops and aquaculture organisms for fishing and farming integrated planting can be effectively promoted.

Concrete wastewater treatment method

Resumen de: CN120717642A

The invention discloses a concrete wastewater treatment method which comprises the following steps: carrying out precipitation treatment on wastewater to obtain supernate, and enabling the pH value of the supernate to be 7-9 and the concentration of heavy metal ions to be smaller than a threshold value; the supernate enters a photobioreactor, microalgae are cultured in the photobioreactor, and treatment liquid is obtained after culture is carried out for a preset time; the treating fluid is treated by a centrifugal machine to obtain centrifugate, and the centrifugate is filtered to reach the emission standard. The discharged water can be used in the concrete production process, such as stirring water, cleaning water and the like, so that wastewater treatment and reutilization, energy conservation and emission reduction are realized, and the production cost is reduced; meanwhile, water can be returned to the first-stage filtering device, and before the first-stage filtering device, filtering holes of the first-stage filtering device and an ultrafiltration membrane of the first-stage filtering device are flushed regularly, so that blockage is prevented, and the service life of the first-stage filtering device is prolonged.

Recyclable microalgae gel with core-shell structure as well as preparation method and application of recoverable microalgae gel

Resumen de: CN120714552A

The invention relates to recoverable microalgae hydrogel with a core-shell structure as well as a preparation method and application of the recoverable microalgae hydrogel, and belongs to the technical field of environmental protection. The invention provides recoverable microalgae hydrogel with a core-shell structure. The microalgae hydrogel comprises at least one shell layer and a core layer arranged in the shell layer, the core layer comprises microalgae cells; and the shell layer is a network-shaped cross-linked body capable of preventing microalgae cells from escaping from the gel. The preparation method comprises the following steps: preparing core-structure microalgae bio-ink and shell-structure ink, carrying out 3D printing on the core-structure microalgae bio-ink and the shell-structure ink to form microalgae gel, and carrying out cross-linking molding; by adopting the core-shell structure design, the escape of microalgae can be effectively prevented, and the balance of ecological species is maintained; the method is suitable for various water area environments, antibiotic degradation with large-range concentration can be realized, and the degradation efficiency is improved; the 3D printing technology is combined, efficient and modular production can be carried out, and the 3D printing device has the potential of industrial scale application.

Membrane floating supporting device for microalgae culture

Resumen de: CN120718738A

The invention discloses a membrane floating support device for microalgae culture, which is used for expanding and flattening a composite membrane, and comprises a support structure, the support structure comprises a frame body, the outer surface of the frame body is fixedly provided with a connecting ring and a barrier strip respectively, the bottom surface of the frame body is fixedly provided with a connecting piece, the frame body is fixedly connected with a floating cylinder through the connecting piece, and the floating cylinder is fixedly connected with the supporting structure. According to the membrane floating supporting device for microalgae culture, the floating barrels are integrated on the frame body to form a supporting structure, and when a composite membrane is supported through the supporting structure, buoyancy of the floating barrels can be self-adaptive to water level fluctuation, keep the membrane surface horizontal, cover the membrane surface flatness and light distribution uniformity, avoid local shadows, and improve the membrane surface floating effect. Meanwhile, the composite membrane is formed by compounding the base material layer, the spectrum conversion layer and the anti-ultraviolet coating, and the composite membrane can solve the problems that the growth of microalgae is inhibited by ultraviolet light in sunlight and the energy of infrared light is wasted by utilizing the performance of a multi-layer material.

CULTURE APPARATUS OF MICROALGAE

Resumen de: JP2025140906A

To provide a culture apparatus of microalgae that can achieve higher productivity of microalgae.SOLUTION: The gist of the present invention is as follows. (1) A culture apparatus of microalgae which carries a microalgae on a culture surface of a carrier to culture the microalgae, and has a gable-roof-like unit structure in which back surfaces of a pair of the carriers face each other, where each culture surface is in a convex shape in a vertical downward direction from a plane surface including an upper side and a lower side of the unit structure. (2) The culture apparatus of microalgae described in (1) where the culture apparatus is in a bellows structure where the gable-roof-like unit structures are connected. (3) The culture apparatus of microalgae described in (1) or (2) where an angle formed by the plane surface and a bottom face of the unit structure is 63 to 76°. (4) The culture apparatus of microalgae described in any one of (1) to (3) where the curvature R of a curved surface formed by the culture surface is 1.0 to 3.0.SELECTED DRAWING: Figure 1

Field desert blue-green algae culture device

Resumen de: CN223386122U

The utility model discloses a field desert blue-green algae culture device, which relates to the technical field of desert blue-green algae culture and comprises a tank body, the bottom of the tank body is of a conical structure, and the top of the tank body is detachably connected with a cover body; the inner side wall of the tank body is in sliding connection with a hollowed-out net plate; the lifting mechanism comprises a driving part and a connecting part, the driving part is installed on the bottom wall of the cover body, one end of the connecting part is detachably connected with the telescopic end of the driving part, and the other end of the connecting part is fixedly connected with the hollowed-out net plate; the hollowed-out net plate provides adhesion and growth space for blue-green algae, the adhesion area of the blue-green algae in unit volume is increased, the hollowed-out design allows water to freely flow up and down on the net plate, exchange of nutrient substances and oxygen is promoted, meanwhile, the concentration of suspended solids in the water is maintained, and the hollowed-out net plate is driven by the lifting mechanism to move up and down along the inner side wall of the tank body, so that the blue-green algae can be effectively adsorbed. The fluidity of the water body is improved, cyanobacteria cells can be prevented from being deposited and attached to the inner side wall of the tank body, the growth of the cyanobacteria is promoted, and the cultu

Composite microalgae culture system

Resumen de: CN223386120U

The utility model provides a microalgae culture system which comprises a photosynthetic reaction module, a growth adjusting module, a harvesting module and an oxygen discharging and dead algae separating module, the photosynthetic reaction module is provided with a light-transmitting disc tube, the growth adjusting module is provided with an adjusting groove, and the interior of the adjusting groove is divided into bent flow channels through a plurality of partition plates; the culture solution is subjected to high-intensity photosynthetic reaction in the photosynthetic reaction module and then enters the growth regulation module to grow in an environment with the intensity lower than that of the photosynthetic reaction of the photosynthetic reaction module, and then the algae in the culture solution are harvested by the harvesting module after the algae grow to a harvesting standard.

Alga photobioreactor reinforced by cooperation of sunlight and artificial light source

Resumen de: CN120699743A

The invention discloses an algae photobioreactor reinforced by cooperation of sunlight and an artificial light source, and relates to the technical field of algae reaction, and the algae photobioreactor comprises a reactor main body which comprises an outer cavity and a reaction cavity arranged in the outer cavity; the light source system comprises a condensation system, a sunlight leading-in system, an artificial light source system and an SrYF5 fluorescent light-emitting system, and is used for providing illumination for the reactor main body; and the aeration system is communicated with the reaction cavity in the reactor main body, and gas generated by the aeration system is introduced into the reaction cavity. By combining the multispectral synergistic effect of the sunlight and the artificial light source, the SrYF5 nano fluorescent powder is utilized to realize light wavelength conversion, 320-400nm ultraviolet light is converted into 550-700nm red light, the available spectrum in the microalgae growth process is expanded, the photosynthesis efficiency of the microalgae is improved, and the overall efficiency of the algae photobiological reaction is improved.

Microalgae biological fertilizer for improving crop yield and stress resistance

Resumen de: CN120699775A

The invention discloses a microalgae biological fertilizer for improving crop yield and stress resistance, and belongs to the technical field of microorganisms. The thermophilic monolith ZGL1 disclosed by the invention can stably grow in a saline-alkali environment, shows strong saline-alkali tolerance, can maintain normal metabolism and growth under high saline-alkali concentration, and provides an ideal microbial resource for agricultural application of saline-alkali soil. The thermophile ZGL1 disclosed by the invention can simultaneously act on saline-alkali soil improvement, antibiotic and pesticide pollution treatment and crop stress resistance and yield increase, has remarkable ecological benefits and economic benefits, and provides an efficient and environment-friendly solution for agricultural ecological restoration of saline-alkali soil.

METHODS OF PREPARATION OF A FOOD OR A FEED PRODUCT OR INGREDIENT FROM NON-REFINED MICROALGAE & USES THEREOF

Resumen de: WO2024105258A1

The invention relates to a method for the preparation of microalgal for use as a food-grade ingredient without the need of any further purification or separation step and resulting products therefrom.

COMPOSITION COMPRISING A EUKARYOTIC MICROALGAE OR AN EXTRACT THEREOF FOR USE IN THE TREATMENT OF A VIRAL DISEASE

Resumen de: EP4620529A2

A composition comprising a eukaryotic microalgae or an extract thereof may be for use in the treatment of a viral disease, e.g. coronavirus, and for use as an inhibitor of the binding of Spike protein receptor binding domain (RBD) to Angiotensin-Converting Enzyme 2 (ACE2). A compound derivable from eukaryotic microalgae may also be for use in the treatment of a viral disease. In turn, a eukaryotic microalgae may be used as an antiviral agent.

Microalgae biological soil remediation agent and preparation method thereof

Resumen de: CN120682822A

The invention belongs to the technical field of soil remediation, and discloses a microalgae biological soil remediation agent and application thereof. A sustainable benign underground micro-ecosystem is constructed, the prepared microalgae biological soil remediation agent takes a porous active carrier with positive charges as a matrix, the porous active carrier is a porous carrier obtained by compounding silicon dioxide on montmorillonite, and the porous carrier is modified to obtain an aminated porous carrier with negative charge NH2-groups between layers. And finally, chitosan cations loaded on the carrier become a porous active carrier with positive charges, and the carrier is loaded with a large amount of chlorella pyrenoidosa, so that the environmental sensitivity is reduced, the carrier can survive and breed in a harsh soil environment, the soil fertility can be remarkably improved, and the yield and quality of crops are improved. Meanwhile, the effect of reducing soil heavy metal pollution is also achieved; the microbial community diversity of the soil can be increased, the soil aggregate structure is improved, and the physical and chemical environment of the soil is improved.

Selenium-containing protein carotenoid microalgae cultivation device

Resumen de: CN223357628U

The utility model relates to the technical field of cultivation devices, in particular to a selenium-containing protein carotenoid microalgae cultivation device. Aiming at the problem that the growth of microalgae is limited due to the change of external illumination and temperature and the inappropriate change of the concentration of carbon dioxide, so that the content of selenoprotein carotenoid is reduced, the following technical scheme is provided: the device comprises a box body, the top of the box body is rotatably connected with a box cover, and a cultivation groove is formed in the box body; a cultivation tank is placed in the cultivation groove, and microalgae are contained in the cultivation tank; the constant-temperature heating unit is mounted in the box body, and the top of the constant-temperature heating unit is in contact with a cultivation tank; the lamp strip is mounted on the inner wall of the cultivation tank and surrounds the outer ring of the cultivation tank. The device can automatically adjust the illumination, the temperature and the carbon dioxide content of microalgae breeding, improves the growth efficiency of microalgae, and ensures the growth of microalgae, the accumulation of nutritional ingredients and the final harvesting efficiency.

Xanthophyll-producing flavobacterium strain

Resumen de: CN120665770A

The invention relates to a lutein-producing flavobacterium strain and belongs to the technical field of biology, the lutein-producing flavobacterium strain can produce lutein, the yield is 71.08 +/-1.33 mu g/g FW, in addition, the invention discloses a lutein microbial fermentation production method, and the method comprises the steps of bacterial liquid preparation, lutein production and product extraction and chemical detection. Compared with extraction of xanthophyll from marigold and microalgae, the flavobacterium strain has the advantages that the growth cycle is 40-48 hours, the production cycle of the flavobacterium strain is short, cultivated land can be saved, the content of pigment impurities is low, the cost can be reduced, and the flavobacterium strain has the potential of industrial application.

Method for producing high-quality protein raw material microalgae

Resumen de: CN120665720A

The invention discloses a method for producing high-quality protein raw material microalgae. By combining a reduction product formic acid driven by carbon dioxide clean energy with edible microalgae culture, microalgae growth and protein synthesis are enhanced. The method specifically comprises the following steps: carrying out adaptive evolution of microalgae by using 20-50mM of low-concentration formate, culturing under an illumination condition by using 50-300mM of formate as an auxiliary carbon source, and finally harvesting the microalgae biomass of which the protein content exceeds 30% and the amino acid composition meets the high-quality protein requirements of international grain and agricultural tissues, high-quality protein raw materials of food and feed can be used. The method has a remarkable application prospect in the field of green non-grain high-quality protein raw material production.

Multi-strain insect protein and microalgae compounded bullfrog feed and preparation method thereof

Resumen de: CN120660801A

The invention belongs to the crossing field of cultivation and bioengineering, and particularly relates to a multi-strain insect protein and microalgae compounded bullfrog feed and a preparation method thereof, the multi-strain insect protein and microalgae compounded bullfrog feed comprises the following components: 25-45% of fermented insect protein, 15-30% of DHA microalgae powder, 10-20% of an auxiliary protein source, 0.5-2% of compound vitamin selected from fermented soybean meal or enzymolysis cottonseed protein, 0.5-2% of vitamin B, 0.5-2% of vitamin C, 0.5-2% of vitamin C, 0.5-2% of vitamin C, 0.5 1%-3% of composite mineral substances, 2%-5% of an adhesive and the balance of carbohydrate; the total DHA content of the bullfrog feed is larger than or equal to 1.5% by dry weight, the ratio of omega-3 fatty acid to omega-6 fatty acid is maintained to be 1: 1-1: 3, and the bullfrog feed has the advantages that saccharomyces cerevisiae is replaced with candida utilis, so that the capability of decomposing insect chitin is enhanced; chlorella is used for supplementing chlorophyll and algal polysaccharides to form a cell protection synergistic effect with schizochytrium limacinum, and DHA is supplemented at the same time; under the action of alkaline protease secreted by bacillus subtilis, the proportion of a beta-folding structure is reduced from 32% to 18%, and the digestibility is remarkably improved.

AQUATIC CULTIVATION SYSTEM, METHOD OF CULTIVATION AND PRODUCTS THEREFROM

Nº publicación: WO2025191569A1 18/09/2025

Solicitante:

B G NEGEV TECHNOLOGIES AND APPLICATIONS LTD AT BEN GURION UNIV [IL]
B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY

Resumen de: WO2025191569A1

Provided by the present disclosure is an aquatic cultivation system (mic-RAS), method of cultivation and microalgae obtainable thereby. The system comprises an aquatic cultivating tank comprising treated media inlet and effluent outlet; a photo-membrane bioreactor (PMBR) comprising a membrane having selective permeability, a PMBR inlet and a PMBR outlet; and fluid communication lines for continuous circulating effluent from the effluent outlet into the PMBR and treated media from the PMBR outlet into the aquatic cultivating tank. The method comprises cultivating aquatic organisms in an aquatic cultivating media within a cultivating tank; cultivating microalgae in an effluent media within a PMBR, the PMBR comprising membrane having selective permeability, submerged within the effluent media, the cultivating of the microalgae comprises: illuminating the microalgae; and circulating effluent from the cultivating tank into the PMBR and treated media from the PMBR into the cultivating tank. Further there is provided a microalgae, preferably obtained or obtainable by the system and/or method.