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Enteromorpha-microalgae competitive growth process simulation method

Resumen de: CN120997450A

The invention discloses an enteromorpha-microalgae competitive growth process simulation method, and relates to the technical field of marine ecology and environmental science. The method comprises the following steps: taking remote sensing image monitoring data of a research area, constructing an enteromorpha green tide coverage area three-dimensional space-time distribution matrix, and determining the distribution range of the matrix; dividing and numbering according to the size of a preset grid unit to obtain an enteromorpha block and a spatial position, and performing dimension reduction processing; the method comprises the following steps: dividing a research area into three subareas, and respectively constructing nutritive salt-enteromorpha-microalgae-debris ecological dynamics box-type models; determining a cross-regional shunting coefficient according to the drifting speed of the enteromorpha between the partitions, and connecting the three box-type models in series; and reconstructing and simulating a time-varying simulation value of the enteromorpha coverage area by using the serially connected models, determining an environmental element modulation effect value, and further determining the key control degree of each environmental element on the competitive growth process of the enteromorpha.

Photobioreactor system for floating microalgae culture and application thereof

Resumen de: CN120988813A

The invention relates to the technical field of microalgae culture, in particular to a floating microalgae culture photobioreactor system and application thereof.The floating microalgae culture photobioreactor system comprises a grid frame fixedly arranged underwater, and a plurality of liftable culture containers are arranged in grid units of the grid frame; displacement sensors and temperature sensors are installed on the culture containers, lifting mechanisms are arranged at grid units of the grid frame, and each lifting mechanism comprises a servo electric cylinder and a pressing rod connected with the plurality of culture containers through elastic supporting pieces; the central controller receives data of the sensor and controls the servo electric cylinder to dynamically adjust the water immersion depth of the plurality of culture containers according to different time periods of a preset day. The lifting mechanism driven by the servo electric cylinder, the linkage elastic supporting piece and the culture container are arranged in the grid frame, and the height of the container is actively adjusted according to a preset time-depth curve in combination with the central controller, so that the temperature of algae liquid is stably maintained at normal temperature, and the problem of high-temperature death caused by strong light in summer is solved.

Separation method for preparing high-purity single-cell protein through biotransformation of one-carbon compound

Resumen de: CN120988054A

The invention relates to the technical field of C07K, in particular to a separation method for preparing high-purity single-cell protein by biotransformation of a one-carbon compound, which comprises the following steps: pretreatment; deep purification; drying at low temperature; through a combined process of pretreatment, deep purification and low-temperature drying, the problems of low recovery rate, insufficient purity and loss of functional components in the prior art are systematically solved. Compared with a traditional process, the method has the advantages that the protein recovery rate after separation is greatly improved, the purity is obviously improved, and the DHA/EPA retention rate is further improved. The technical scheme provided by the invention is particularly suitable for separation of single-cell proteins rich in functional lipids, such as microalgae, methanol yeast, methanol bacteria, methane-oxidizing bacteria mixed bacteria and the like, and an efficient technical scheme is provided for industrial application of biotransformation of the one-carbon compound.

Compound microbial agent and application thereof in prevention and control of cyanobacterial bloom

Resumen de: CN120988904A

The invention discloses a compound microbial agent and application thereof in prevention and control of cyanobacterial bloom, two algicidal bacteria are obtained through screening, the preservation number is CCTCC NO: M 2024698, and the preservation number is CCTCC NO: M 2024699, and the compound microbial agent is proved to have obvious inhibition effects on a plurality of cyanobacteria bacteria such as microcystis aeruginosa, lacustrine triphora, anabaena and cylindrocystis, and can be used for preventing and controlling cyanobacteria bloom. And the composite bacterial agent combined by the two algicidal bacteria has a remarkable algicidal effect on algal blooms in natural water areas, can be applied to the field of biological prevention and control of freshwater cyanobacterial blooms, and provides an ideal choice for treatment of cyanobacterial blooms in water bodies.

Monomer oyster seed attaching material and preparation method thereof

Resumen de: CN120982448A

The invention relates to the technical field of monomeric oyster fry cultivation, and discloses a monomeric oyster fry attachment material and a preparation method thereof. The monomer young oyster attaching material comprises a fiber fabric base body and attaching layers loaded on the two surfaces of the fiber fabric base body. The adhesion layer is prepared from a film forming material; the film-forming material is prepared from the following raw materials: oyster shell powder, crushed oyster shells, carbon powder, living microalgae, an adhesive and water. According to the monomer young oyster attaching material provided by the invention, the fiber fabric matrix with flexibility and biodegradability is used as a framework, components in the attaching layers on the two sides can be biodegraded or physically broken, the structure is kept stable in an expected service cycle, and a stable structure is provided for attachment of young oysters; and the young oysters are not easy to break in the stripping process, the adhesion layer is not left after stripping, and the pollution to the breeding environment is avoided.

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.

Paint comprising microbial cells and water-based paint vehicle

Resumen de: US2025354021A1

This invention is an artist paint comprising a colorant and a water-based paint vehicle. The colorant comprises whole microalgal or cyanobacterial cells, which are grown under controlled light conditions comprising changes in light intensity or color for specified periods of time to produce the desired colorant. The water-based paint vehicle comprises a humectant, photostabilizers and preservatives, a buffer, and rheology modifiers. The paint is made by growing and harvesting the cells as the colorant followed by mixing with the water-based paint vehicle to create a paint suspension. The resulting suspension is allowed to dehydrate to form a moist cake. The cake is mixed with the water-based paint vehicle using a paint brush to create a second paint suspension that is then painted onto a surface. The resulting paint can be controlled to provide a uniform or a gritty texture.

USE OF A MICROALGAE EXTRACT, ALONE OR IN COMBINATION, FOR IMPROVING COGNITIVE ABILITIES

Resumen de: US2025352593A1

The invention relates to the use of an extract of Phaeodactylum tricornutum alone or in combination with an extract chosen from a guarana (Paullinia cupana) extract, a ginseng (Panax ginseng) extract, a Ginkgo biloba extract, a Nelumbo nucifera extract, a Centella asiatica extract, a Piper nigrum extract, a Bacopa monnieri extract or any combination thereof and/or a compound chosen from arginine, creatine, caffeine, theanine, vitamin C, vitamin E, vitamin B, theophylline, paraxanthine, theobromine, rosmarinic acid, ellagic acid, cinnamaldehyde or any combination thereof, for maintaining and/or increasing data processing speed and/or concentration in healthy mammals. The combination of the extract of P. tricornutum and one of these extracts or one of these compounds is also described. The invention also relates to a composition comprising the combination according to the invention.

Synchronous carbon sequestration and grey water purification device

Resumen de: CN120964995A

The invention discloses a synchronous carbon sequestration and grey water purification device, and belongs to the technical field of biological synergistic treatment of waste gas and grey water. The device comprises a purifier and a membrane wire assembly, the purifier comprises a barrel for inputting grey water, and an air inlet and an air outlet are formed in the upper end and the lower end of the barrel respectively; the membrane wire assembly comprises multiple strands of membrane wires and two fixing units, and the two ends of the multiple strands of membrane wires communicate with the air inlet and the air outlet through the fixing units correspondingly; the gas inlet can be used for inputting gas CO2 into the membrane filaments; microalgae for photosynthesis and bacteria for aerobic respiration are inoculated on the membrane filaments; the inoculum size of the microalgae is larger than that of the bacteria, and the microalgae can absorb gas CO2 which comes from an air inlet and is generated by breathing of the bacteria, fix the CO2 and generate oxygen. According to the invention, blowing oxygen supply for grey water is not needed, carbon dioxide is fixed, and emission of carbon dioxide gas is avoided.

Carbon quantum dot for strengthening and promoting growth of microalgae and application of carbon quantum dot

Resumen de: CN120964777A

The invention relates to a carbon quantum dot for strengthening and promoting growth of microalgae and application thereof. In the process of preparing the carbon quantum dots by a conventional hydrothermal method, a precursor mixture is subjected to acidification modification in advance, the pH value is adjusted to 2 by using nitric acid, and then a hydrothermal reaction is performed, so that the prepared carbon quantum dots have the capability of promoting the growth of microalgae. However, if other acids are adopted or pH adjustment is not in place, the effect cannot be achieved, and even the inhibition effect can be achieved. The obtained product is good in effect and stable in performance, no special reaction device needs to be additionally arranged in the acidification modification process, and the method has the advantages that operation is easy and convenient, raw materials are easy to obtain, and the process can be quantified; the method is simple and convenient in process operation, has universality and is easy for industrial production.

Anti-aging composition as well as preparation method and application thereof

Resumen de: CN120959412A

The invention discloses an anti-aging composition as well as a preparation method and application thereof, and belongs to the technical field of functional foods. Comprising the following raw materials: 2 to 4% of sophora flower powder extract, 0.5 to 1.0% of pyrroloquinoline quinone disodium salt, 10 to 16% of marine collagen peptide, 0.5 to 3.0% of microalgae mustard oil nanoparticles, 1 to 3% of fructo-oligosaccharide, 0.1 to 0.3% of a composite thickening agent, 2 to 5% of a natural sweetening agent, 0.2 to 0.6% of a natural acidulant, 0.05 to 0.2% of essence, 1.0 to 3.0% of lecithin, 0.2 to 1.0% of cholesterol, 0.5 to 1.0% of glycerin, and the balance of water. The sophora flower powder extract, the pyrroloquinoline quinine disodium salt and the like are adopted to prepare the nano-liposome, and the nano-liposome is combined with specific raw materials to prepare the composition, so that synergistic anti-aging of multiple active ingredients can be realized, the effective ingredients can be ensured not to be damaged in the stomach, the bioavailability is high, efficient targeted delivery can be realized, and the application prospect is wide. The dual-channel molecules synergistically and effectively resist inflammation and activate mitochondrial functions, so that an excellent systematic anti-aging effect is realized.

Microalgae culture monitoring system capable of monitoring microalgae carbon fixation and carbon flow direction in real time

Resumen de: CN120966595A

The invention relates to a microalgae culture monitoring system capable of monitoring microalgae carbon fixation and carbon flow direction in real time. The microalgae culture monitoring system comprises a culture bottle, an air supply device, an air metering pump, a tail gas carbon dioxide fixation device and a marker detection device, the microalgae are cultured in the culture device; the air supply device is used for introducing air containing CO2 in a specific proportion into the culture solution in the culture bottle through the air metering pump; the tail gas carbon dioxide detection device is communicated with the culture device through a pipeline and is used for detecting CO2 released by the culture device; and the tail gas carbon dioxide fixing device is communicated with the atmosphere through an exhaust port. The system provided by the invention can be used for monitoring the supply amount and the discharge amount of CO2 in real time so as to obtain the real-time carbon sequestration condition of the microalgae, and the carbon flow direction in microalgae cells can be obtained by combining isotope 13C with instruments such as a Raman spectrometer, so that the growth and metabolism of the microalgae can be deeply researched, and convenience is provided for the research of the microalgae and the screening of high-quality target algae strains.

Method for breeding microalgae organisms in breeding sewage

Resumen de: CN120966668A

The invention relates to the technical field of microalgae organism breeding, and discloses a method for breeding microalgae organisms in breeding sewage. Comprising a biological membrane microalgae reactor, a microalgae harvesting device, a sewage post-treatment device, a particulate matter sedimentation tank, an adjusting tank, an anaerobic sludge reactor, a secondary sedimentation tank, a raceway pond microalgae reactor, a first valve, a second valve, a third valve, a fourth valve and a fifth valve. The particulate matter settling pond is used for settling solid particles in the sewage, so that the sewage is suitable for fermentation or microalgae culture. According to the method for culturing the microalgae organisms in the culture sewage, a microalgae organism culture technology is implemented in the culture sewage, so that a large amount of high-COD, high-ammonia-nitrogen and high-suspended matters generated by culture in the sewage are treated by utilizing the microalgae organisms, high-efficiency and low-cost sustainable treatment of the sewage and culture wastes is realized, and meanwhile, sewage treatment measures are prepared; sewage treatment can be assisted at the same time, and the safety of the breeding environment is improved.

Non-aerated activated carbon-bacteria-algae biological membrane system for grey water treatment

Resumen de: CN120964996A

The invention discloses a non-aerated activated carbon-bacteria-algae biological membrane system for grey water treatment, and belongs to the technical field of sewage treatment and recycling. The device comprises a reactor and a filler assembly, the reactor comprises a hollow reaction column, and grey water is input into the reaction column; the filler assembly comprises a plurality of suspended balls and an activated carbon filler, and the suspended balls are suspended in grey water of the reaction column; the suspended balls are filled with the activated carbon filler, the activated carbon filler is inoculated with microalgae, activated sludge for growth and reproduction of strains and specific bacteria, the activated carbon filler is acidified and modified flaky activated carbon, the microalgae can provide oxygen for growth and reproduction of the bacteria, and the specific bacteria can degrade a surfactant adsorbed by the activated carbon filler. External aeration oxygen supply is not needed, and biomass and oxygen loss caused by bubble disturbance is avoided.

Method for purifying mine gushing water

Resumen de: CN120964992A

The invention relates to a method for purifying mine gushing water. The method comprises the following steps: mixing filamentous microalgae and to-be-treated mine gushing water for purification treatment. According to the method, filamentous microalgae are adopted to purify the to-be-treated mine gushing water, extracellular polysaccharide secreted by the filamentous microalgae growing in the mine gushing water can adsorb suspended solids in the mine gushing water, and meanwhile, the filamentous microalgae grow in the mine gushing water to be bent and wound algae filaments can also remove the suspended solids in the mine gushing water; therefore, the purification effect of the mine gushing water is effectively improved. Moreover, compared with traditional inorganic flocculants and organic polymer flocculants, the filamentous microalgae adopted in the invention have no chemical residues, and have less pollution to the environment and less toxicity to the ecological environment.

Microalgae-microorganism compound preparation for improving saline-alkali soil and application

Resumen de: CN120966700A

The invention belongs to the technical field of soil remediation, and relates to a microalgae-microorganism compound preparation for improving saline-alkali soil and application. The microalgae-microorganism compound preparation is prepared from spirulina, chlorella, nostoc, scenedesmus obliquus, bacillus mucilaginosus, bacillus mucilaginosus and pseudomonas. The microalgae-microorganism compound preparation for improving the saline-alkali soil can improve the available phosphorus content of the soil, increase the available potassium content of the soil and effectively improve the soil; soil bulk density is reduced, and soil hardening is improved; therefore, the fertilizer retention property of the soil is enhanced, the growth and development of crop roots are facilitated, the crop yield is remarkably improved, and the application prospect is wide.

Preparation method of reed straw lixivium and application of reed straw lixivium in microalgae culture

Resumen de: CN120966638A

The invention relates to a preparation method of a reed straw leachate. The preparation method comprises the following steps: raw material pretreatment: crushing reed straws; soaking condition optimization: mixing and soaking the pretreated reed straws with water, and analyzing the influence of each factor on the concentration of the reducing sugar in the reed straw leachate under the treatment conditions of different soaking durations, straw particle sizes and solid-liquid ratios by taking the content of the reducing sugar as an evaluation index; after the single factor data is processed, each factor obtains a plurality of experimental levels, an L9 (33) orthogonal experimental method is adopted, an orthogonal experiment is carried out according to the selected experimental factors and experimental levels, and optimized soaking conditions are obtained; the pretreated reed straw and water are mixed and soaked according to optimized soaking conditions, and the leachate is obtained after filtration. The microalgae culture cost is reduced, agricultural waste resource utilization is achieved, and the method has application prospects and economic benefits in the fields of agricultural waste treatment and microalgae industrial culture.

Room-temperature preservation method and application of microalgae suspension

Nº publicación: CN120966636A 18/11/2025

Solicitante:

INST OF ECO ENVIRONMENT AND SOIL SCIENCES GUANGDONG ACADEMY OF SCIENCES
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Resumen de: CN120966636A

The invention belongs to the technical field of microalgae preservation, and discloses a room-temperature preservation method of a microalgae suspension and application of the room-temperature preservation method. The preservation method comprises the following steps: placing a microalgae suspension in a closed container, adding a deoxidant and a bacterial bacteriostatic agent, and adjusting the pH value to 7.5-8.5 to obtain a microalgae preservation solution; and introducing nitrogen to carry out headspace replacement by utilizing a vacuumizing-inflating system so as to establish an anaerobic environment and reduce the concentration of dissolved oxygen in the microalgae preserving fluid, and preserving the microalgae at room temperature in a dark place. According to the method, the microalgae activity is maintained for a long time at room temperature, bacterial proliferation is effectively inhibited, the survival rate of the microalgae can reach 69% or above within 90 days, and economic and practical technical support is provided for large-scale application of the microalgae in the fields of food, feed, energy and the like.