Resumen de: WO2020099590A1

The invention relates to a device (10) for producing microalgae, comprising a basin (12) containing an aqueous medium and a movable support (14) capable of receiving a cell culture made up of algae cells, which movable support is immersed at least partially in the aqueous medium and has at least a first portion and a second portion, characterised in that the movable support is arranged in the basin such that the first portion is exposed directly to a main light source (18) and forms an exposure section (24), and the second portion is not exposed directly to the main light source (18) and forms an inhibition section (26), the device (10) further comprising a secondary light source (28) designed to emit actinic light in the direction of the inhibition section (26) so as to inhibit the pigment synthesis of at least some of the algae cells. The invention also concerns a method for producing microalagae.

Resumen de: KR20200055518A

본 발명은 옥세노클로렐라 프로토테코이드(Auxenochlorella protothecoides) 균체 추출물을 포함하는, 화장료, 피부외용제 또는 의약외품제의 제조방법 및 이의 제조 방법에 관한 것이다.

Resumen de: US2020157524A1

Methods of enhancing biomass and secondary metabolite accumulation of microalgal species are described herein. A cell culture of the microalgal species were elicited using a combination of techniques for a period of time. Experimental studies compared biomass dry weight production, chlorophyll dry weight content and astaxanthin dry weight content between controls and elicitation treatments. The present invention demonstrated that combined elicitation is an effective method for improving cell biomass growth and astaxanthin production.

Resumen de: KR20200048902A

본 발명은 바이오 에너지 생산을 위한 조류 배양용 창호에 관한 것으로, 보다 구체적으로는 챔버형 창문을 통해 미세 조류를 배양함으로써, 바이오에너지 생산을 위한 바이오매스로 활용될 수 있고, 배양된 미세조류에 의해 실내측으로 유입되는 태양광을 차양시킬 수 있으며, 이산화탄소를 고정하고 산소를 배출하여 공기를 정화시킬 수 있는 바이오 에너지 생산을 위한 조류 배양용 창호에 관한 것이다.

Resumen de: KR20200046557A

본 발명은 미세조류인 스피루리나, 클로렐라 등 광합성작용을 수행하는 광합성 미세조류를 배양하기 위한 미세조류 광배양장치에 관한 것으로, 배양액이 수평으로 흐르면서 순환하는 하부 순환 배관부; 상기 하부 순환 배관부에 대응되어 상측으로 일정 간격을 두고 설치되며 배양액이 수평으로 흐르면서 순환하는 상부 순환 배관부; 상기 하부 순환 배관부와 상부 순환 배관부를 연결하여 상기 하부 순환 배관부로부터 상부 순환 배관부로 배양액이 흐르도록 하는 복수의 투명수직배양관; 상기 상부 순환 배관부에서 상기 하부 순환 배관부로 배양액이 흐르도록 하기 위한 수직 순환 배관부; 및 상기 하부 순환 배관부 내로 투입되어 상기 투명수직배양관으로 배양기체를 공급하기 위한 기체 분사관부;로 구성되고, 상기 하부 순환 배관부는, 상기 수직 순환관부를 통해 배양액이 유입되어 순환됨과 아울러 상기 투명수직배양관으로 배양액을 공급할 수 있도록 다수의 T형 배관, 일자형 배관 및 엘보우형 배관이 서로 연결되어 구성되고, 상기 상부 순환 배관부는, 상기 투명수직배양관을 통해 배양액이 유입되어 순환됨과 아울러 상기 수직 순환관부를 통해 배양액이 배출되도록 다수의 T형 배관, 일자형 배관 및 엘보우형 배관으�

Resumen de: WO2020089703A1

The present invention relates to transgenic microalgae for the production of cell wall degradative enzymes having a heat-stable cellulolytic activity (HCWDEs) and their relative uses in the biodegradation of cellulose or lignocellulose sources in the industrial field.

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.

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.

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.

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.

Resumen de: CN110947369A

The invention discloses a preparation method and application of microalgae-based magnetic graphene and biochar. Firstly, magnetic graphene is prepared through a coprecipitation method, then the surface of biochar is coated with the magnetic graphene through combination of n-n bonds, and finally, cultured microalgae, the magnetic graphene and the biochar are mixed under the conditions of illumination, nutrients and the like to prepare the microalgae-based magnetic graphene and biochar. The method has the advantages of wide application range, environment-friendly materials, easiness in separation, good selectivity, high removal efficiency and the like and has a wide application prospect in the aspect of removing heavy metal ions.

Resumen de: CN110950437A

The invention belongs to the technical field of microalgae, and discloses a method for treating nitrogen and phosphorus wastewater by using microalgae preserved by agar embedding. The method comprisesthe following steps: under an illumination condition, adding agar-embedded microalgae into wastewater containing nitrogen and phosphorus for treatment, and collecting the microalgae for reuse after treatment; wherein the agar-embedded microalgae is formed by uniformly mixing microalgae cells with a molten agar culture medium and solidifying. The method is high in nitrogen and phosphorus removal rate, wherein the ammonia nitrogen removal rate can reach 97% or above, and the phosphate removal rate can reach 90% or above; when the agar-embedded microalgae are microalgae preserved for a long timeat normal temperature, the removal rate of ammonia nitrogen and phosphate is still kept at 60% or above after the microalgae are preserved for four months at normal temperature. In addition, the microalgae are fixed, the algae cell density is high, and the treatment efficiency is improved; the embedded algae are easy to collect after absorbing nitrogen and phosphorus, so that nitrogen and phosphorus are thoroughly removed; and the embedded microalgae is convenient to recover and can be repeatedly utilized.

Resumen de: EP3628651A1

A method for obtaining biofertilizer concentrates and biostimulants for agricultural use from biomass of microalgae, including cyanobacteria, wherein, firstly, the cellular content of the microalgae, including cyanobacteria, is released by rupturing the cells thereof; next, the protein fraction and the cell wall of the microalgae, including cyanobacteria, obtained from said release of the cellular content, are hydrolyzed with proteolytic enzymes until producing free amino acids; next, nitrogen (N), phosphorus (P) and/or potassium (K) excipients are added to the previously obtained product of enzymatic hydrolysis.

Resumen de: CN110937936A

The invention discloses a method for obtaining concentrates of fertilizers and stimulants from biomass of microalgae, wherein, firstly, the cellular content of the microalgae, including cyanobacteria,is released by rupturing the cells thereof; next, the protein fraction and the cell wall of the microalgae, including cyanobacteria, obtained from the release of the cellular content, are hydrolyzedwith proteolytic enzymes until producing free amino acids; next, nitrogen (N), phosphorus (P) and/or potassium (K) excipients are added to the previously obtained product of enzymatic hydrolysis.

Resumen de: CN110944522A

The present invention relates to the field of upgrading biomass, in particular algal biomass, and more specifically the present invention relates to a method for extracting water-soluble compounds from microalgae and/or cyanobacteria, as well as the product obtained by this method and the uses of same, in particular in the food industry or as food supplements.

Resumen de: CN110938533A

The invention relates to a bioreactor used for an alga facultative growth mode and a working method thereof. The bioreactor comprises a reaction tank as a main body, a diversion tank is arranged belowthe reaction tank, and the bottom of the reaction tank is communicated with the diversion tank through a transparent glass column pipe; and the transparent glass column pipe comprises a middle glasscolumn pipe body and an outer glass column pipe body. The middle glass column pipe body is internally provided with an axial-flow paddle used for pushing water in the middle glass column pipe body toflow to one end of the diversion tank during rotation, and the axial-flow paddle is fixed to a rotating shaft and is in transmission connection with a motor. The working method comprises the steps that microalgae seed liquid is introduced into the reaction tank through an inoculation hole, the motor is started, the motor drives the axial-flow paddle to push the culture liquid in the middle glass column pipe body to flow into the diversion tank from the reaction tank, oxygen is supplied into the pipe through a middle gas-liquid jet device, the content of dissolved oxygen in the culture liquid is increased, and the culture liquid flows back into the reaction tank from the diversion tank through the outer glass column pipe body; and the process is repeated in this way, through the cooperationof an LED lamp which illuminates the outer glass column pipe body, the requirements of alga facultative

Resumen de: CN110938527A

The invention discloses a urine and excrement separation, recovery and resourceful treatment system for a rural pit toilet. The urine and excrement separation, recovery and resourceful treatment system comprises a urine and excrement separation toilet, a yellow water and grey water treatment system and an excrement fermentation and biodegradation system, wherein the urine and excrement separationtoilet is used for separating and recovering urine and excrement discharged by human beings; C, N and P elements are converted into high-protein fish and shrimp baits by utilizing a microalgae-metal-based electrogenesis dynamic membrane coupling technology; treated urine and grey water are used for agricultural irrigation; and a sanitary toilet-ecological agriculture-green breeding sustainable industrial chain mode for obtaining a high-protein feed and wormcast on the basis of multi-element co-fermentation is constructed, so nutrient substances in excreta are utilized to the maximum extent. The urine and excrement separation, recovery and resourceful treatment system provided by the invention is slightly influenced by weather conditions, is applicable to vast rural areas where aquatic products and livestock breeding are engaged in China, and can also be applied to arid and water-deficient areas and cold areas.

Resumen de: CN210214941U

The utility model discloses a microalgae sewage treatment device and relates to the field of sewage treatment equipment. The device comprises a membrane separation device and a microalgae treatment device, a sewage inlet of the microalgae treatment device is connected with a sewage source through a fifth control valve; the inlet end of the membrane separation device is connected with the water outlet of the microalgae treatment device; wherein a water production end of the membrane separation device outputs treated sewage, a concentrated water end of the membrane separation device is respectively connected with the first control valve and the second control valve, an outlet end of the first control valve is connected with a sewage inlet of the microalgae treatment device and is used for inputting part of microalgae into the microalgae treatment device in a backflow manner, and an outlet end of the second control valve is used for outputting the rest of microalgae. The device can be suitable for sewage treatment of various scales, microalgae generated after sewage treatment can be turned into wealth, and the device is used for oil production or other applications and has good environmental protection benefits and economic benefits.

Resumen de: WO2019046621A1

The present disclosure provides various cyanobacterial extracts exhibiting antiviral activity to a wide spectrum of viruses, such as enterovirus (EV), respiratory syncytial virus (RSV), Human Herpesvirus (HHV), Ebola virus, porcine epidemic diarrhea virus (PEDV), and porcine reproductive and respiratory syndrome virus (PRRSV). The cyanobacterial extract is prepared from biomass of A. maxima (or Spirulina maxima). Also disclosed herein are process for preparing the cyanobacterial extract and uses of the cyanobacterial extract.

Resumen de: CN210193863U

The utility model belongs to the technical field of microalgae culture. The culture tank comprises a tank body, a cover body is suspended at the lower part in the tank body, a vertical cylinder body is vertically fixed on the cover body, a first bearing and a second bearing are respectively arranged at the top and the bottom of the cylinder body, a lead screw is arranged in the cylinder body, a sliding block with an internal thread is screwed on the lead screw, and the top end of the lead screw is fixed with a handle; an annular metal screen is arranged in the tank body, three strip-shaped sliding holes are longitudinally formed in the cylinder body, each sliding hole is provided with a connecting block, one end of each connecting block is fixed to the corresponding sliding block, and theother end of each connecting block is fixed to the inner edge of the metal screen. The shaking handle can be shaken to descend the metal screen to the lower portion of the cylinder, the shaking handlecan be shaken to move the metal screen upwards after culture is finished, and therefore microalgae can be brought out of sewage to be collected, rotation is changed into vertical movement, labor is saved, and the problem that a large number of microalgae are difficult to collect when the weight is large can be solved.

Resumen de: CN210193886U

The utility model discloses an efficient closed marine microalgae culture photobioreactor which comprises a base, an outer cylinder, an inner cylinder, a top cover, an aeration pipe, an air outlet hole, a bulge, a plant light source lamp, a power supply control switch, a cleaning spray head, a vent hole, a sampling hole, a discharge pipe, a discharge valve, a pH and salinity display, a pH and salinity sensor and an automatic temperature controller, the cylinder body is made of transparent materials such as acrylic materials, the plant light source lamp is arranged in the inner cylinder with high light transmittance, the protrusions at the bottom enable light to form diffuse reflection in the cylinder body, and the utilization rate of light energy is improved. The plant light source lamp isarranged in the center of the reactor, is high and uniform in illumination intensity and high in light source absorption and utilization degree, remarkably reduces energy consumption, and has the advantages of being small in occupied area, capable of achieving three-dimensional cultivation, easy, convenient and efficient to operate, rapid and stable in microalgae growth, high in unit water body algae yield, high in algae cell purity, not prone to pollution and the like.

Resumen de: CN210193880U

The utility model discloses a microalgae culture device. The microalgae culture device comprises a closed reactor assembly, two negative pressure liquid storage tanks, a control electric cabinet, a simple air purification device and an auxiliary water pump, the microalgae culture device is characterized in that two negative-pressure liquid storage tanks are used for storing liquid alternately to achieve the purpose of negative-pressure efficient driving; the device not only overcomes the defect that sterile culture cannot be performed in traditional open culture, but also has the advantages ofsmall shearing force in the culture process, better disturbance effect of culture solution, small damage to algae cells, capability of obtaining algae solution with higher density, low energy consumption and the like compared with a closed culture device driven by other modes.

Resumen de: CN110917866A

The invention discloses a carbon dioxide gas fixing device for microalga culture. The device comprises: a reaction kettle, wherein a sealing ring is arranged at the upper part of the reaction kettle along the circumferential inner wall of the reaction kettle; a pressurizing unit arranged at the upper part of the reaction kettle; gas supply units comprising an odd number of gas supply units and placed at the bottom of the reaction kettle, wherein the gas supply units form a three-dimensional structure of the gas supply units through connecting pipes, each gas supply unit comprises a spiral nanotube, each nanotube is provided with a plurality of gas supply holes, the inner side port of the gas supply unit at the bottommost layer is closed, and the connecting ends between every two adjacent layers of gas supply units are the inner side ports or the outer side ports; and a built-in sensing unit. The device can efficiently fix carbon dioxide, and also can provide an efficient inorganic carbon source for a microalga culture system.

Resumen de: CN110921838A

The invention relates to the technical field of sewage treatment. The invention further discloses a three-dimensional microalgae culture feeding device for sewage treatment. The top of a base is fixedly connected with a first supporting column, a second supporting column and a telescopic rod. The tops of the first supporting column and the second supporting column are fixedly connected with a topcover. Pull rods are movably connected to the two sides of the top cover, culture dishes are movably connected to the pull rods through connecting rods, a take-up column and a supporting rod are fixedly connected to the top of the top cover, a pull wire is fixedly connected to the take-up column through a pulley, a liquid storage tank is fixedly connected to the interior of the top cover, and a feeding port is fixedly connected to the top of the liquid storage tank. According to the three-dimensional microalgae culture feeding device for sewage treatment, when the device is used, culture dishes can be driven to ascend while the pull rods are lifted by rotating the take-up column, and the distance between the culture dishes is reduced, so that the purposes of adjusting the use amount of microalgae according to needs, uniformly distributing the microalgae in a sewage layer and occupying a small space are achieved.

Resumen de: CN110923185A

The invention provides a culture method capable of increasing oil content of microalgae cells, and belongs to the technical field of microalgae biology. Specifically, the culture method capable of increasing the oil content of the microalgae cells comprises a step of adding an exogenous oil synthesis precursor substance into a microalgae culture solution so as to have oil content of microalgae cells increased. The culture method capable of increasing the oil content of the microalgae cells provided by the invention effectively avoids disadvantages of complex process, high cost and limited effects of conventional microalgae oil accumulation and induction methods, so that the culture method is suitable for cultivation of various kinds of microalgae as well as promotion and enhancement of oilaccumulation in the microalgae; and the culture method is especially suitable for producing rare fatty acids with high added values, such as palmitoleic acid, DHA, EPA and the like. Therefore, the culture method capable of increasing the oil content of the microalgae cells is capable of realizing value addition of low-value oil, thereby achieving significant economic benefits; and thus, the culture method has good industrialized application prospects.