Resumen de: WO2023043063A1

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

Resumen de: WO2023040130A1

A pharmaceutical composition for radiation protection, and a preparation method therefor and the use thereof. Amifostine and natural microalgae in the pharmaceutical composition are in osmotic pressure driving combination, and are thus gradually degraded in the intestinal tract after oral administration, fully cover the intestinal tract, and are slowly released. The drug concentration in small intestine tissues is significantly increased, and the radiation protection effect on the intestinal tissues is fully developed; meanwhile, the systemic toxic and side effects of the drug are avoided. The pharmaceutical composition can also achieve the effects of nutrient supplement and intestinal inflammation regulation, has a good oral safety and a simple and feasible preparation process, is easy to store and take, solves the problems of a low absorption efficiency and oral safety of a drug and a preparation thereof in the prior art, and has wide application prospects in the field of intestinal radiation protection.

Resumen de: US2021352934A1

Methods for making a plant-based food product from a microalgae are described. An example method includes obtaining a microalgae, extracting chlorella protein from the microalgae, modifying a factor associated with the chlorella protein and/or adding a stimulant to the chlorella protein to change an amino acid combination of the chlorella protein, and utilizing the modified chlorella protein as a protein flour to create the plant-based food product.

Resumen de: WO2021229296A1

A bioreactor system for cultivating microalgae is described. The bioreactor system includes a bioreactor. The bioreactor includes one or more holes. One or more light sources are implanted into each of the one or more holes. A culture media comprising a carbon source is located inside of the bioreactor. A microalgae comprising a photoreceptor sensitive to a region of a visible spectrum is located in the culture media. Each of the one or more light sources produce an irradiance of light including the region of the visible spectrum in a sufficient intensity to transduce the photoreceptor of the microalgae.

Resumen de: CN218665976U

The utility model discloses a micro-fluidic chip for sorting microalgae cells. The chip comprises a flow channel layer and a substrate layer; the runner layer and the substrate layer are processed and bonded together through a plasma cleaning machine; the runner layer comprises an inlet, a first expansion channel, a first contraction channel, a second expansion channel, a first outlet and a second outlet; the first expansion channel wraps a first deterministic lateral displacement micro-column structure, and the second expansion channel wraps a second deterministic lateral displacement micro-column structure; the device does not need to depend on professional operators, is high in sorting efficiency, and saves time and labor.

Resumen de: CN115820214A

The invention discloses a microalgae-based cold storage agent and a preparation method thereof, and relates to a cold storage agent and a preparation method thereof. The invention aims to solve the problems that the existing coolant is too high in preparation cost, easy to generate supercooling and phase separation phenomena, corrosive, toxic, incapable of utilizing renewable resources and unfavorable for industrial popularization. The microalgae-based cold storage agent is prepared from a carrier, a stabilizer, a main energy storage agent, a first auxiliary agent, a second auxiliary agent and a solvent. The method comprises the following steps: 1, weighing; 2, preparing a spirulina solution; 3, adding sodium chloride into the spirulina solution; 4, adding pectinase; 5, adding protease; and 6, adding maltose and glycerol to obtain the microalgae-based cold storage agent. The low-temperature, non-toxic and environment-friendly microalgae-based cold storage agent is prepared, and the phase change temperature is-8 DEG C to-2 DEG C; and the phase change enthalpy is greater than 290 kJ/kg. According to the invention, the microalgae-based cold storage agent can be obtained.

Resumen de: WO2023043170A1

The present invention relates to a gel microdroplet-based method for selecting microalgae, the method comprising culturing, within microdroplets, microalgal strains that exhibit excellent cell growth, gelling and centrifuging the microdroplets, and injecting the centrifuged gel microdroplets into a microfluidic channel in successive order and selecting same, and thus photosynthetic microalgal strains having improved photoautotrophic growth can be selected, at high speed, from a library of randomly generated mutants.

Resumen de: CN218665997U

The utility model provides a microalgae harvesting device. The microalgae harvesting device comprises a telescopic harvesting plate, a telescopic water filtering conveyor belt and an assembly frame, the assembly frame comprises a first support, a second support and a telescopic rod, the first support and the second support are oppositely arranged in parallel, the telescopic rod is horizontally arranged between the first support and the second support, and the telescopic harvesting plate and the telescopic water filtering conveying belt are arranged on the assembly frame side by side and can stretch out and draw back in the stretching-out and drawing-back direction of the telescopic rod; the two ends of the telescopic harvesting plate are connected to the upper portions of the first support and the second support through rotating shafts respectively, the two ends of the telescopic water filtering conveying belt in the conveying direction are connected to the upper portions of the first support and the second support through rotating shafts respectively, and at least one end is connected to the assembly frame. According to the device disclosed by the utility model, the situation that larger areas in which the microalgae harvesting device cannot collect microalgae liquid appear at the two ends of the microalgae culture pond in the width direction can be avoided, and the microalgae harvesting efficiency of the microalgae harvesting device is ensured.

Resumen de: CN115812661A

The invention provides a sunlight factory-like circulating water fish culture system and method, and belongs to the technical field of aquaculture. The sunlight factory-like circulating water fish culture system comprises a fish culture pond and a fiber rotary disc filtering system; the fiber turntable filtering system can realize removal of large-particle-size particles in aquaculture water and regular harvesting of microalgae, the quality of treated water reaches the fishery aquaculture standard, and 97% of aquaculture water can be directly recycled. According to the method, in the in-situ culture process of microalgae and fish, the microalgae can convert CO2 exhaled by the fish and nitrogen, phosphorus and other nutritional ingredients in culture water into algae cell substances such as protein, polysaccharide, vitamins and lipid, oxygen is released, and the culture water quality is rapidly improved; the microalgae and the fish are cultured in situ, the advantage of high photosynthetic efficiency of the microalgae is exerted, and the microalgae growing rapidly provides a suitable growth environment for the fish. By means of the sunlight factory-like circulating water fish culture system and method, high-density, high-stability and low-energy-consumption circulating water fish culture can be achieved.

Resumen de: CN115820422A

The invention provides a high-yield exopolysaccharide microalgae and application thereof in improvement of saline-alkali soil, the high-yield exopolysaccharide microalgae is preserved in China Center for Type Culture Collection on June 14, 2022, and the preservation number is CCTCC NO: M2022884. The high-yield exopolysaccharide microalgae can significantly reduce the pH and conductivity of saline-alkali soil, improve the content of organic matters and total sugar in the saline-alkali soil and improve the enzymatic activity of the saline-alkali soil, and can be used for improving the saline-alkali soil.

Resumen de: CN115818837A

The invention relates to the technical field of sewage treatment, in particular to a biochemical treatment system for sewage. The embodiment of the invention provides a biochemical treatment system for sewage. The biochemical treatment system comprises an anaerobic reactor, an anoxic-aerobic reaction unit, a denitrification reactor and a microalgae reactor which are communicated in sequence, wherein the anoxic-aerobic reaction unit comprises at least one group of anoxic reactor and aerobic reactor which are sequentially communicated along the flowing direction of sewage; anaerobic microorganisms are arranged in the anaerobic reactor to degrade organic matters, denitrifying bacteria and anoxic microorganisms are arranged in the anoxic reactor to degrade the organic matters, nitrifying bacteria and aerobic microorganisms are arranged in the aerobic reactor to degrade the organic matters, denitrifying bacteria are arranged in the denitrification reactor to degrade the organic matters, and nitrifying bacteria are arranged in the denitrification reactor to degrade the organic matters. Microalgae are arranged in the microalgae reactor to degrade organic matters. The embodiment of the invention provides a biochemical treatment system for sewage, which can be used for efficiently treating the sewage.

Resumen de: CN115820780A

The invention belongs to the technical field of bioengineering, and discloses a method for promoting scenedesmus to accumulate xanthophyll by using melatonin and ethephon, which comprises the following steps: culturing scenedesmus to reach a logarithmic phase to serve as an induction seed solution; preparing a melatonin mother solution with the concentration of 100 mmol/L by using absolute ethyl alcohol, preparing an ethephon mother solution with the concentration of 10 g/L by using pure water, and adding the melatonin mother solution and the ethephon mother solution into the seed solution; inoculating the seed solution into a bubbling tower type photobioreactor, and inducing algae cells to accumulate the xanthophyll. The method is simple and easy to implement, low in investment and high in yield, and scenedesmus strains are used as raw materials and can be cultured according to a conventional method. Accumulation of xanthophyll in microalgae cells can be effectively promoted by adding ethephon under the condition of melatonin, the content of xanthophyll in microalgae cells is greatly increased, the highest xanthophyll content reaches 20.68 mg/g and is 1.32 times that of a control group, and it is proved that melatonin and ethephon can remarkably promote xanthophyll accumulation of scenedesmus.

Resumen de: CN218642736U

The utility model discloses a disturbance system of a microalgae culture solution, which comprises a culture pond, a combined body formed by combining a first disturbance pipeline and a second disturbance pipeline is arranged in the culture pond, a first group of spray holes are formed in the first disturbance pipeline, a second group of spray holes are formed in the second disturbance pipeline, and the first group of spray holes are communicated with the second group of spray holes. One end of the first disturbance pipeline is sealed, the other end of the first disturbance pipeline is connected with the first supply pipeline, one end of the second disturbance pipeline is sealed, and the other end of the second disturbance pipeline is connected with the second supply pipeline; and when the fluid is sprayed out from the second group of spray holes, the combined body can move towards the other side of the culture pond. The system is low in construction and operation cost, good in disturbance effect and flexible to control, and can be widely applied to culture of microalgae.

Resumen de: WO2023035437A1

Provided are a microalgae culture medium and a method for degrading algae toxins. The microalgae culture medium is composed of potassium peroxymonosulfate, sodium dehydroacetate, sodium citrate, alpha hydroxy acid, glacial acetic acid, sodium thiosulfate, Lactococcus lactis, sodium lauroyl glutamate and Tween. The present culture medium can effectively promote the rapid growth and reproduction of beneficial microalgae, ensure the mass reproduction of beneficial microorganisms, accelerate the decomposition and transformation of organic matter in an aquaculture process, resist infiltration harmful organisms, reduce algae toxins in water bodies, improve aquaculture environments, and promote aquaculture product growth.

Resumen de: WO2023035088A1

The present invention relates to an integrated bioprocess for the mixotrophic induction of astaxanthin (ATX) accumulation in Haematococcus lacustris, comprising, at least, the following steps: autotrophic culture growth under standard conditions; mixotrophic induction of ATX accumulation in photobioreactor; biomass harvesting and drying under standard conditions; and ATX extraction under standard conditions. The use of this integrated bioprocess enables cultivation without sanitary, seasonal, climatic or geographical constraints.

Resumen de: CN115778893A

The invention discloses an oral microalgae-nano composite anti-radiation preparation as well as a preparation method and application thereof. The anti-radiation preparation is a microalgae-nano composite system loaded with a drug with an anti-radiation function, microalgae and nano particles loaded with the anti-radiation drug are combined, the water solubility and oral absorbability of the anti-radiation drug can be improved, long-time retention and multi-stage slow release and step-by-step degradation of the drug are realized in intestinal tracts, and the anti-radiation effect of the anti-radiation drug is improved. The distribution and bioavailability of the medicine in the intestinal tract can be effectively improved, the beneficial regulation effect on intestinal flora and metabolites of the intestinal flora is achieved, and then effective radiation protection on the intestinal tract and the whole body is achieved.

Resumen de: CN115777849A

The invention discloses a hermetia illucens feed and a method for breeding hermetia illucens by using the feed. The preparation method of the hermetia illucens feed comprises the following steps: performing alkali-adding high-temperature and high-pressure cooking pretreatment on oil-rich microalgae feed liquid; uniformly mixing the pretreated microalgae feed liquid with the crushed organic solid waste in proportion; and adding a compound bacterium enzyme preparation into the obtained mixture for fermentative degradation to obtain the hermetia illucens feed. After the hermetia illucens larvae are bred for 7-8 days by using the hermetia illucens feed, the larva residues are separated, and fresh larvae and larva sand are obtained. According to the method, the oil-rich microalgae and the organic solid waste mixture are used for synergistically breeding the hermetia illucens, so that the growth of larvae of the hermetia illucens can be promoted, oil accumulation in larva bodies is promoted, and meanwhile, resource utilization of the organic solid waste is realized.

Resumen de: CN115786086A

The novel floating type photobioreactor comprises a reactor main body, a stirring paddle, a central shaft and a wind power driving part, an opening is formed in the top of the reactor main body, a reactor cover is arranged at the top of the reactor main body and embedded in the opening of the reactor main body, and a through sampling hole is formed in one side of the top of the reactor cover; the stirring paddle is arranged in the reactor main body, the bottom of the central shaft rotationally penetrates through the reactor cover, extends into the reactor main body and is fixedly connected to the stirring paddle, and the wind power driving part is fixedly arranged at the top of the central shaft. According to the bioreactor, the wind power driving part is used for collecting wind energy, so that the wind power driving part drives the stirring paddle to rotate in the reactor main body through the central shaft, the stirring paddle stirs algae liquid, overall circulation and uniform mixing of the algae liquid in the reactor main body are realized, and the utilization of light energy and nutrients by microalgae is enhanced; the growth is promoted.

Resumen de: CN115777910A

The invention provides a preparation method of a salty and fragrant algae protein smearing sauce containing viable bacteria. The salty and fragrant algae protein smearing sauce is prepared from the following raw materials: microalgae powder, a compound stable thickener, vegetable fat, cane sugar, sea salt, a flavor regulator, a leavening agent and remaining materials supplemented with water. The preparation method comprises the following steps: carrying out dry mixing on pretreated microalgae powder and sucrose, slowly adding the mixture into hot water, stirring until the mixture is uniformly dispersed, sterilizing, cooling, and carrying out inoculated fermentation; stirring and demulsifying to obtain a fermented microalgae base material when the fermentation end point is reached; adding a compound stable thickener into preheated water, stirring, adding sea salt, a flavor regulator and vegetable fat, and continuously stirring until the materials are completely dispersed, so as to obtain an auxiliary material; performing heat treatment and sterilization on the obtained auxiliary material, uniformly mixing with the fermented microalgae base material, and performing low-temperature after-ripening to obtain a mixed material; and performing sterile low-pressure homogenization, and performing filling. The method for preparing the smearing sauce containing the viable bacteria and algae protein is simple and convenient to operate and convenient for industrial production, and the obta

Resumen de: CN115802887A

Described herein are systems and methods for cultivating or accumulating climate-focused marine target products. The target product may be microalgae, macroalgae, plankton, marine bacteria or archaea, filter-feeding animals (e.g., oysters or clams) or crustaceans for purposes of bioremediation, final cultivation or for sequestration of carbon dioxide; or the target product may be a direct chemical or biological accumulation of carbon or carbon-containing organisms. The system is primarily a floating device designed to hold the target product in the region of the water column and in the spatial region of water where the floating device will best accumulate the target product mass. In some embodiments, the system is designed to achieve final passive sinking (transitioning from floating equipment to sinking equipment) to deep sea. In some embodiments, the system is equipped with specially selected sensors for instrumented measurement and quantification of various biological and mechanical processes occurring onboard.

Resumen de: CN115786127A

The invention belongs to the field of biomass recycling and biological energy, and particularly relates to an accelerant for synthesizing nano-selenium by microalgae and a method for synthesizing nano-selenium by microalgae. The invention provides an accelerant, a flavonoid compound, sodium selenite and a solvent for synthesizing nano-selenium by microalgae. The flavonoid compound is selected from one or more of quercetin, rutin, a rhus chinensis leaf extract and a lotus leaf extract. The invention provides an accelerant for synthesizing nano-selenium from microalgae and a method for synthesizing nano-selenium from microalgae. The accelerant can obviously promote the conversion efficiency of inorganic selenium by microalgae and accumulate nano-selenium; moreover, the method for synthesizing the nano-selenium is high in efficiency and low in cost, the nano-selenium production process is green and environment-friendly, and the method has a wide industrial application prospect.

Resumen de: CN115786099A

The invention discloses a microalgae culture solution disturbance system which comprises a culture pond, a combination body formed by combining a first disturbance pipeline and a second disturbance pipeline is placed in the culture pond, the first disturbance pipeline is provided with a first group of spray holes, the second disturbance pipeline is provided with a second group of spray holes, and the first group of spray holes are communicated with the second group of spray holes. One end of the first disturbance pipeline is sealed, the other end of the first disturbance pipeline is connected with the first supply pipeline, one end of the second disturbance pipeline is sealed, and the other end of the second disturbance pipeline is connected with the second supply pipeline; and when the fluid is sprayed out from the second group of spray holes, the combined body can move towards the other side of the culture pond. The system is low in construction and operation cost, good in disturbance effect and flexible to control, and can be widely applied to culture of microalgae.

Resumen de: CN218596357U

The utility model relates to a system for culturing microalgae by utilizing sunlight, the system comprises a microalgae culture pond filled with microalgae liquid and n light guide grooves distributed in parallel, n is any integer greater than 0, and at least part of the light guide grooves are immersed in the microalgae liquid; the section, perpendicular to the length direction of the light guide groove, of the light guide groove is in a v shape, and a shell of the light guide groove is made of light-transmitting materials. According to the system, the light guide groove is formed in the microalgae culture pond, sunlight is guided into the microalgae liquid in the deep dark area, solar energy is fully utilized, the specific light receiving area of the microalgae liquid is selected, then the high microalgae growth rate is obtained, and the system is suitable for large-scale culture.

Resumen de: US2023073101A1

The present disclosure provides a composition comprising: an extracellular polymeric substance produced by microalgae; plant growth promoting Gram-negative bacteria; and an agriculturally acceptable carrier. Also provided are an isolated biologically pure culture of Parachlorella kessleri Accession No. NCMA 202103001, a mutant thereof having all the identifying characteristics thereof, or a cell-free preparation or extracellular polymeric substance thereof, which may be used for plant enhancement and improving health of soil.

Resumen de: WO2023032815A1

This metal recovery material includes cyanobacteria of genus Leptolyngbya.