MICROALGAS: CULTIVO Y USOS

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Resultados 73 resultados LastUpdate Última actualización 05/08/2020 [17:45:00] pdf PDF xls XLS

Solicitudes publicadas en los últimos 120 días / Applications published in the last 120 days



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Method for promoting microorganisms to induce calcium carbonate precipitation by using algae-bacteria co-cultivation system

NºPublicación: CN111088166A 01/05/2020

Solicitante:

UNIV NANCHANG

Resumen de: CN111088166A

The present invention discloses a method for promoting microorganisms to induce calcium carbonate precipitation by using an algae-bacteria co-cultivation system. The method comprises the following steps: microalgae and urease bacteria are co-cultivated under a condition of adding a certain concentration of glucose, and growth of the microalgae is reflected by measuring chlorophyll in the co-cultivation system; and the algae-bacteria co-cultivation system is mixed with a calcification solution after shake cultivation to achieve a purpose of algae-bacteria co-inducing of calcium carbonate precipitation. By artificially constructing the microalgae and urease bacteria co-cultivation system, the method can increase biomass of the microalgae, can also promote the microorganisms to induce the calcium carbonate precipitation, and provide a novel and unique inducing precipitation method for microorganism mineralization.

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Culture method for microalgae

NºPublicación: CN111088211A 01/05/2020

Solicitante:

UNIV WUHAN TECH

Resumen de: CN111088211A

The invention discloses a culture method for microalgae. The method comprises the following steps: 1, preparing a culture medium, namely firstly preparing a BG-11 culture medium, performing sterilization treatment, and further adding nano zero-valent iron so as to obtain a prepared culture medium; and 2, culturing microalgae, namely inoculating microalgae into the prepared culture medium, introducing air, and performing lighting culture. According to the culture method, the culture medium with the nano zero-valent iron is adopted for lighting culture, so that the biological yield and the grease yield of the microalgae can be increased, and the problem that the grease yield of alga cells is low can be solved.

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MICROALGAE PURIFICATION CULTURE MEDIUM AND METHOD FOR SEPARATION AND PURIFICATION OF MICROALGAE

NºPublicación: WO2020083071A1 30/04/2020

Solicitante:

UNIV PANZHIHUA [CN]

CN_109182133_A

Resumen de: WO2020083071A1

Disclosed are a microalgae purification culture medium and a method for the sterilization, separation and purification of microalgae, which belong to the technical field of microalgae biology. The method for preparing the microalgae purification culture medium comprises the following steps: preparing a microalgae liquid inorganic culture medium, then adding 1-1.5 wt% of high-purity agarose into the liquid inorganic culture medium to obtain a mixed liquid, and sterilizing the mixed liquid to prepare a microalgae solid culture medium. The microalgae purification culture medium used for purifying microalgae does not have adverse effects on the microalgae itself, and has the advantage of simple operations, which means that there is no need to cultivate the microalgae multiple times.

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TAILORED OILS PRODUCED FROM RECOMBINANT OLEAGINOUS MICROORGANISMS

NºPublicación: EP3643774A1 29/04/2020

Solicitante:

CORBION BIOTECH INC [US]

CN_110066836_A

Resumen de: EP3643774A1

Methods and compositions for the production of oil, fuels, oleochemicals, and other compounds in recombinant microorganisms are provided, including oil-bearing microorganisms and methods of low cost cultivation of such microorganisms. Microalgal cells containing exogenous genes encoding, for example, a lipase, a sucrose transporter, a sucrose invertase, a fructokinase, a polysaccharide-degrading enzyme, a keto acyl-ACP synthase enzyme, a fatty acyl-ACP thioesterase, a fatty acyl-CoA/aldehyde reductase, a fatty acyl-CoA reductase, a fatty aldehyde reductase, a fatty acid hydroxylase, a desaturase enzyme, a fatty aldehyde decarbonylase, and/or an acyl carrier protein are useful in manufacturing transportation fuels such as renewable diesel, biodiesel, and renewable jet fuel, as well as oleochemicals such as functional fluids, surfactants, soaps and lubricants.

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Indoor high-density breeding method of sipunculus nudus

NºPublicación: CN111066702A 28/04/2020

Solicitante:

SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD FISHERY SCIENCES

Resumen de: CN111066702A

The invention belongs to the technical field of marine organisms breeding, and relates to an indoor high-density breeding method of sipunculus nudus. The indoor high-density breeding method of sipunculus nudus comprises the following steps of (1) preparing a breeding device, wherein the breeding device comprises a breeding pond, a growth sand bed, a gas supply assembly and a water inlet and drainage assembly, and a bolting-silk cloth, a medium and thick sand layer and a fine sand layer are sequentially and upwards laid at the bottom of the growth sand bed; (2) preparing a breeding feed: wherein the breeding feed comprises deposition type microalgae, float sludge powder and large-scale algae powder and large-scale algae liquid; (3) performing sand layer bottom material fattening; (4) breeding the sipunculus nudus: putting the sipunculus nudus on the growth sand bed of the breeding device, and putting the breeding feed on the surface of the growth sand bed for feeding; and (5) performingbreeding water management. According to the indoor high-density breeding method of sipunculus nudus disclosed by the invention, through improving oxygenating efficiency in bottom materials, sufficient supply of dissolved oxygen content in interstitial water can be realized; and then through addition of high-density living and fresh microalgae bait, the problem of deficient dissolved oxygen in enough quantity of ecology type demersal living body microalgae and interstitial water is solved, and hi

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Microalgae cultivation self-cleaning device

NºPublicación: CN210419953U 28/04/2020

Solicitante:

SUN XIAODONG

Resumen de: CN210419953U

The utility model discloses a microalgae cultivation self-cleaning device which comprises a bottle body, a one-way valve with a valve rod is arranged at a bottle opening in the bottom of the bottle body, and the valve rod extends downwards out of the bottle body. And at least one cleaning and ventilating unit is arranged on the side wall of the bottle body. The utility model has the advantages that the structure is ingenious; the gravity of breeding liquid in the bottle body and buoyancy provided by the cavity above the liquid level in the bottle body are used for ascending or descending in the breeding pipe, cleaning of the pipe wall of the breeding pipe is achieved, gas circulation between the bottle body and the breeding pipe can be guaranteed, and the technical problem that when an existing pipe cleaner is used, due to negative pressure and balance weight, the machining cost is high is completely solved. The requirement for the thickness of the bottle body is low, the requirement for the balance weight is low (the total mass of the self-cleaning device is smaller than or equal to 50 g), the machining cost is greatly reduced, the cost of the pipe cleaner in each breeding area can be saved by at least 80% or above, and the investment cost is greatly saved.

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Gas-driven algal solution circulating device for microalgae culture and use method

NºPublicación: CN111073794A 28/04/2020

Solicitante:

QINGDAO INST BIOENERGY & BIOPROCESS TECH CAS

Resumen de: CN111073794A

The invention belongs to the technical field of a microalgae culture reactor, and particularly relates to a gas-driven algal solution circulating device for microalgae culture and a use method. The invention provides a device for circulating a microalgae culture solution based on gas driving. The device comprises a first solution storage tank and a second solution storage tank, wherein a pressureboost port and a pressure relief port are formed at the top of the first solution storage tank, a pressure boost port and a pressure relief port are formed at the top of the second solution storage tank, solution drain valves and solution inlet valves are arranged at the bottoms of the first solution storage tank and the second solution storage tank, and gas is introduced into the solution storagetanks to boost pressure to serve as drive to realize circulation flow of the algal solution in the solution storage tanks and a closed type main reactor. The device does not adopt mechanical devicessuch as a rotating wheel paddle, so that the cell shear action is avoided. Besides, the solubility of carbon dioxide in the culture solution can be effectively increased in a circulation flow manner of the algal solution, a scouring effect on the side wall of the device is also realized during flow, and the cleaning difficulty is reduced. The arrangement manner of the solution storage tanks is more flexible and the application prospects are good.

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Method for inducing efficient synthesis of fatty acid from Euglena gracilis Klebs

NºPublicación: CN111057726A 24/04/2020

Solicitante:

UNIV TIANJIN AGRICULTURAL

Resumen de: CN111057726A

The invention relates to a method for inducing efficient synthesis of fatty acid from Euglena gracilis Klebs, comprising the following steps: streaking Euglena gracilis Klebs in a solid HUT heterotrophic medium with the agar mass concentration of 0.8%, screening in a dark environment, selecting Euglena cells capable of growing algae in a solid medium under dark conditions, picking and inoculatingthe Euglena cells into the HUT heterotrophic medium and culturing with the illumination of 0 and controlling the temperature to 25+/-1 DEG C, transferring under the illumination condition and carryingout photoinduction for 48 h, continuously illuminating for 48 h with the illumination being 30 micromoles (m<2>/s) and according to the light-dark ratio of 12L: 12D, and shaking the flask several times each day to prevent the microalgae cells from adhering to the wall or sinking. In this method, the combination of heterotrophic culture and photoinduction is selected, and the culture mode can increase the contents of total fatty acid, monounsaturated fatty acid (MUFA), polyunsaturated fatty acid (PUFA) and saturated fatty acid (SFA) of Euglena gracilis Klebs.

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Microalgae propagation integrated system

NºPublicación: CN210394328U 24/04/2020

Solicitante:

INST SOIL & FERTILIZER FUJIAN

Resumen de: CN210394328U

The utility model discloses a microalgae propagation integrated system which comprises a first-stage culture barrel, a second-stage culture barrel and a third-stage culture barrel which are connectedin sequence, the first-stage culture barrel is used for filtering and disinfecting seawater, the inlet end of the first-stage culture barrel is connected with a disinfection material feeding device and a seawater inlet pipe, and a stirring device and a gravel filter are arranged in the first-stage culture barrel; the second-stage culture barrel is used for standing and dechlorinating seawater, andthe inlet end of the second-stage culture barrel is connected with a dechlorinating material feeding device; the third-stage culture barrel is used for culturing microalgae, the inlet end of the third-stage culture barrel is connected with a liquid fertilizer feeding pipe, an algae seed feeding device and an aeration device, a light supplementing lamp is arranged above the third-stage culture barrel, and a temperature regulator is arranged in the third-stage culture barrel. According to the utility model, seawater is filtered and disinfected through the three levels of culture barrels, then is subjected to standing dechlorination and microalgae culture, so that microalgae can be propagated in a high-quality and high-efficiency manner, and rich baits are provided for the razor clam breeding industry.

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COPOSITION FOR CULTURING DUNALIELLA AND CULTURING METHOD THEREOF

NºPublicación: KR20200042050A 23/04/2020

Solicitante:

IUCF HYU [KR]
EUGNE BIOTECH CO LTD [KR]

Resumen de: KR20200042050A

The present invention relates to a composition for culturing Dunaliella mutants having excellent pigment production capacity. More particularly, the present invention relates to a composition for the mass culture of Dunaliella mutants, and a culturing method using the same. The culturing composition of the present invention can increase the macular pigment production of Dunaliella microalgae, and does not need to add inorganic salts to the culturing composition, and thus can significantly lower the production level of a culture medium, thereby being very effective for cultivation of Dunaliella, especially the mass culture thereof.

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METHOD FOR TREATMENT AND RESOURCE UTILIZATION OF ACIDIC ORGANIC WASTEWATER

NºPublicación: WO2020078433A1 23/04/2020

Solicitante:

CHINA PETROLEUM & CHEM CORP [CN]
SINOPEC NANJING RES INSTITUTE OF CHEMICAL INDUSTRY CO LTD [CN]

Resumen de: WO2020078433A1

Disclosed is a method for the treatment and resource utilization of acidic organic wastewater, comprising: (1) performing activated sludge treatment on acidic organic wastewater; and (2) performing microalgae treatment on the acidic organic wastewater treated in step (1). By means of the combination of activated sludge treatment and microalgae treatment, the present invention can significantly reduce the COD of the acidic organic wastewater. In some embodiments, the use of acclimated activated sludge or activated sludge having a specific microbial flora structure can not only improve the treatment efficiency while shortening the treatment time, but also omit a pH value adjustment step without causing sludge accumulation.

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METHOD FOR OBTAINING A STABILISED FOOD DRINK MADE FROM FRUIT JUICE COMPRISING EXTRACTS OF MICROALGAE AND/OR CYANOBACTERIA

NºPublicación: EP3638052A1 22/04/2020

Solicitante:

ALGAMA [FR]

Resumen de: WO2018229365A1

The present invention relates to the field of biomass valorization, in particular algal biomass, and more specifically the present invention relates to a method for obtaining a food drink having a long shelf life, preferably of more than 6 months, of acidic pH, preferably made from fruit juice, comprising extracts of eukaryotic or prokaryotic microalgae (cyanobacteria), as well as the stabilised food drink obtained by this method.

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Bacterium-algae symbiotic system for enhancing pyridine biodegradation under microaerobic condition

NºPublicación: CN111040965A 21/04/2020

Solicitante:

UNIV NANJING SCI & TECH

Resumen de: CN111040965A

The invention discloses a bacterium-algae symbiotic system for enhancing pyridine biodegradation under a microaerobic condition. The bacterium-alga symbiotic system is formed by carrying out mixed culture on strain Paracoccus sp. NJUST47 with a pyridine degradation function and chlorella sorokiniana FACHB-275 which are used as inoculants. According to the bacterium-algae symbiotic system, paracoccus grows with pyridine as the sole carbon source and nitrogen source, and chlorella grows with ammonia nitrogen generated by pyridine degradation as the nitrogen source. Microalgae in the bacterium-algae symbiotic system generate dissolved oxygen through photosynthesis, the paracoccus realizes efficient degradation of the pyridine under a microaerobic condition by utilizing the dissolved oxygen generated by the photosynthesis of the microalgae, and the maximum degradation rate can reach 45.16 +/-2.4 mg/L/day; the pyridine at a concentration of 100 mg/L can be completely degraded within 60 hours. Meanwhile, in the bacterium-algae symbiotic system, the population growth and sedimentation performance of the microalgae can be obviously improved.

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Culture medium sterilized for microalgae high density culture, and the air compression, air cooling, carbon dioxide automatically supplied, sealed vertical photobioreactor, harvesting, drying apparatus and characterized in that to provide a carbon dioxide biomass conversion fixed, air and water purification method using the same

NºPublicación: CN111032849A 17/04/2020

Solicitante:

GREENTECH VENTURES INC

JP_2019524152_A

Resumen de: CN111032849A

A microalgae culture broth producing system includes a device for culture broth sterilization using a micro air bubble generator, an air compression and pressure equalization device for the injectionof carbon dioxide and oxygen in the atmosphere into the culture broth. The system also includes an air chilling device to maintain suitable culture broth temperature when water temperature is too high, an automatic carbon dioxide supply device to promote photosynthesis, and a sealed vertical photobioreactor to block out pollutants and increase dissolved carbon dioxide and oxygen concentration. Thesystem further includes a high-efficiency harvesting device using hollow fiber membranes, and a hot air drying device using the waste heat generated by air compression.

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Anaerobic-aerobic-microalgae coupling treatment device and feces and/or domestic sewage treatment method

NºPublicación: CN111018109A 17/04/2020

Solicitante:

UNIV TSINGHUA
SHANXI RESEARCH INSTITUTE FOR CLEAN ENERGY TSINGHUA UNIV
SICHUAN TIANHUI ENERGY TECH CO LTD

Resumen de: CN111018109A

The invention relates to the technical field of sewage treatment, in particular to an anaerobic-aerobic-microalgae coupling treatment device and a feces and/or domestic sewage treatment method. The anaerobic-aerobic-microalgae coupling treatment device comprises: an anaerobic tank (5); an aerobic aeration tank (8) communicated with a water outlet of the anaerobic tank (5); an aerobic-microalgae mixing tank (14) communicated with a water outlet of the aerobic aeration tank (8); and a microalgae pool (18) communicated with a water outlet of the aerobic-microalgae mixing pool (14). By adopting the device provided by the invention, feces and domestic sewage can be treated at the same time, and the quality of treated water meets the first-grade B standard of domestic sewage discharge; besides,a microalgae product is obtained while feces and domestic sewage are treated, can be used for producing high-end organic agricultural products and has better economic benefits.

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Microalgae culture system

NºPublicación: CN210287030U 10/04/2020

Solicitante:

YANGJIANG POLYTECHNIC

Resumen de: CN210287030U

The utility model discloses a microalgae culture system which comprises an impurity separation device, a culture water treatment device and a microalgae culture device, the impurity separation devicecomprises a bottom support and a filter screen arranged in the bottom support, and the bottom support is provided with a water inlet used for receiving culture discharge water and a water outlet usedfor conveying the culture discharge water to the culture water treatment device; the culture water treatment device comprises a first-stage sedimentation tank, a second-stage sedimentation tank and acollection disinfection tank which are sequentially communicated, a water outlet of the first-stage sedimentation tank is higher than a water outlet of the second-stage sedimentation tank, and the first-stage sedimentation tank and the second-stage sedimentation tank are respectively provided with a sewage draining exit and a sewage draining valve located at the sewage draining exit; wherein the microalgae culture device comprises a microalgae culture pond and a plurality of microalgae culture racks arranged in the microalgae culture pond at equal intervals, a movable light supplementing device is arranged above the microalgae culture pond, and the collection and disinfection pond is communicated with the microalgae culture pond through a pipeline and a first water pump. According to the utility model, secondary utilization of culture discharge water can be realized, and the cost in the mic

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Microalgae culture device

NºPublicación: CN210287324U 10/04/2020

Solicitante:

FUQING KING DNARMSA SPIRULINA CO LTD

Resumen de: CN210287324U

The utility model discloses a microalgae culture device. The device comprises a bottom plate, a power supply box, a culture tank, a first gas storage tank and a second gas storage tank, an air outletplate is fixedly mounted at the bottom in the culture tank; a lighting device is fixedly mounted at the central position of the bottom in the culture tank; a first gas storage tank is fixedly mountedon one side of the top of the bottom plate; the input end of the first gas storage tank is fixedly connected with the output end of a culture tank through a hose; a power supply box is fixedly mountedin the center of the top of the bottom plate; and a culture tank is fixedly installed at the top of the power supply box, a sealing cover is fixedly installed at the top of the culture tank, a secondgas storage tank is fixedly installed on the side, away from the first gas storage tank, of the top of the bottom plate, and an adjusting valve is fixedly installed on the surface of the output end of the second gas storage tank. The first air storage tank is arranged, and oxygen generated in the microalgae autotrophic process overflows out of the surface of the nutrient solution and then entersthe first air storage tank to be stored.

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Method for producing carbohydrates by using pig-raising sewage

NºPublicación: CN110982859A 10/04/2020

Solicitante:

HARBIN INST TECHNOLOGY

Resumen de: CN110982859A

The invention relates to a method for producing carbohydrates by using pig-raising sewage and belongs to the technical field of biological energy synthesis. Aiming at problems of low carbohydrate level and poor sewage purification effect of microalgae used for sewage treatment at present, the invention provides a method for producing carbohydrates by using pig-raising sewage. Pig-raising sewage istaken as a culture substrate to produce carbohydrates by carrying out two-stage culture or semi-continuous culture on microalgae, wherein the microalgae are Parachlorella kessleri QW Y28, Desmodesmussp. QWY36 or Chlamydomonas sp. QWY37. Through the two-stage culture or semi-continuous culture of the microalgae, the pig-raising sewage which is not sterilized can be purified, and the carbohydratescan be simultaneously produced at a high yield. The method provided by the invention is favorable for protecting the ecological environment.

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Microalgae collecting device

NºPublicación: CN210287329U 10/04/2020

Solicitante:

FUQING KING DNARMSA SPIRULINA CO LTD

Resumen de: CN210287329U

The microalgae collecting device comprises a power supply box, a collecting box, a separation cavity, a liquid storage cavity and a conveying guide pipe, the interior of the collecting box is dividedinto the separation cavity and the liquid storage cavity through a partition plate, and a welding plate is fixedly installed at the inner top of the separation cavity. According to the utility model,the separation hopper is arranged; the ZR320-02PW small booster pump is used for increasing the interior of the liquid storage cavity; then, algae liquid in the liquid storage cavity is stored under the action of pressure; the gas enters and is jetted into the separation hopper through the conveying guide pipe; the diameter of a separation net sleeve on the separation hopper is smaller than that of microalgae; microalgae in the algae liquid enters the separation hopper and then is stored in the separation hopper; according to the microalgae collection device, microalgae in the microalgae liquid can be collected, the microalgae collection efficiency can be greatly improved, meanwhile, the microalgae in the microalgae liquid can be thoroughly separated, and the waste rate of the microalgae in the microalgae liquid is prevented from being too high.

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Microalgae biological reaction device and sewage treatment method

NºPublicación: CN110981119A 10/04/2020

Solicitante:

GUIZHOU PROVINCIAL PEOPLES HOSPITAL

Resumen de: CN110981119A

The invention discloses a microalgae biological reaction device. The microalgae biological reaction device comprises a microalgaefilm biological reaction module, an illumination module and a sand filtering tank, the microalgaefilm biological reaction module comprises a water distribution disc and an array type film assembly, the water distribution disc comprises a water distribution pipe and a hollow disc, the water distribution pipe is arranged on the hollow disc, and a water inlet pipe is arranged at the upper end of the hollow disc; the array type film assembly comprises a filtering film and a film support, the filtering film is connected with the water distribution pipe through the film support, the illumination module comprises a support, an LED lamp strip and a reflector, the top endof the support is connected with the hollow disc, the LED lamp strip and the reflector are both arranged in the support, a mounting base is arranged in the sand filtering tank, and the sand filteringtank is connected with the support through the mounting base. A chemical fiber filter film, a zeolite mixing layer and a gravel layer are arranged in the sand filtering tank; the microalgae biological reaction device can solve the problems of low light energy utilization rate, difficulty in microalgae removal, large occupied area, high energy consumption, high investment cost and the like in thetraditional mode, and can meet the requirement of advanced sewage treatment.

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Nutrient solution conveying device for river mussel breeding and application of nutrient solution conveying device

NºPublicación: CN110973035A 10/04/2020

Solicitante:

WUXI HONGBAO MICROBIOLOGY TECH CO LTD

Resumen de: CN110973035A

The present invention discloses a nutrient solution conveying device for river mussel breeding. The nutrient solution conveying device for the river mussel breeding comprises a water pump, connectingpipes and nutrient solution conveying pipes, the water pump, the connecting pipes and the nutrient solution conveying pipes are connected in sequence, and a plurality of water outlet holes are arranged in the nutrient solution conveying pipe. The present invention also discloses an application of the nutrient solution conveying device for the river mussel breeding. The nutrient solution conveyingdevice for the river mussel breeding has strong operability, low cost, remarkable effect, no secondary pollution to water environment, and no toxic and side effects to aquaculture animals, can also effectively remove cyanobacteria and prevents eutrophication of river mussel culture water bodies.

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METHOD FOR CULTURING FRESH WATER MICROALGA

NºPublicación: WO2020071444A1 09/04/2020

Solicitante:

JAPAN SCIENCE & TECH AGENCY [JP]

Resumen de: WO2020071444A1

A method for culturing a fresh water microalga, said method comprising a culture step for culturing the fresh water microalga in a medium, in which hydrogen ion concentration is adjusted to pH 1.0-6.0 and sodium ion concentration is adjusted to 0.1-0.4 M, at a culture temperature of 15-60°C.

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Immobilization culture device for microalgae

Nº publicación: CN110964626A 07/04/2020

Solicitante:

UNIV ANHUI

Resumen de: CN110964626A

The invention discloses an immobilization culture device for microalgae. The immobilization culture device comprises a sedimentation tank and a tower body which is fixed on the sedimentation tank andis communicated with the sedimentation tank, wherein a plurality of layers of tower plate structures are arranged in the tower body along a longitudinal direction; each layer of tower plate structurecomprises a filter layer, a water storage layer and a support layer, and microalgae are paved on the filter layer for culture; a spray pipe is arranged at the top of the tower body and communicated with the sedimentation tank through a connecting pipe; and a lifting pump is arranged on the connecting pipe. The immobilization culture device for microalgae disclosed by the invention overcomes the problems of small growth density, large occupied area, difficulty in harvesting and the like in conventional microalgae culture. According to the device disclosed by the invention, microalgae culture efficiency is effectively improved by improving the light absorption rate of microalgae, and subsequent microalgae harvesting cost is greatly reduced by virtue of isolated culture of the microalgae anda water phase.

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