Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

45 results about "Euglena gracilis" patented technology

Euglena gracilis is a freshwater species of single-celled alga in the genus Euglena. It has secondary chloroplasts, and is a mixotroph able to feed by photosynthesis or phagocytosis. It has a highly flexible cell surface, allowing it to change shape from a thin cell up to 100 µm long, to a sphere of approximately 20 µm. Each cell has two flagella, only one of which emerges from the flagellar pocket (reservoir) in the anterior of the cell, and can move by swimming, or by so-called "euglenoid" movement across surfaces. E. gracilis has been used extensively in the laboratory as a model organism, particularly for studying cell biology and biochemistry.

Culture medium of euglena gracilis and open type high-density culture method

The invention provides a culture medium of euglena gracilis, which is added with different inorganic nutrient substances, in particular to nutrient components such as a mixture of ammonium chloride and urea, and the like. In an open culture process, the culture medium not only overcomes the defects that euglena gracilis is easy to pollute by microorganisms and bacteria so as to pollute the environment, and the like in the prior art, but also can ensure that the euglena gracilis quickly utilizes the inorganic nutrient components to accelerate cell division under the condition of not adding an organic carbon source. The culture medium of the invention shortens the grown cycle of the euglena gracilis by 2-5 days compared with a conventional culture medium and has a biomass accumulation being 1-1.5 times higher than the conventional culture medium. The culture medium removes the organic carbon source of the conventional culture medium and supplements the carbon source in the mode of CO2, thus the culture medium not only can achieve the purpose of avoiding microorganism pollution, but also can increase the capacity of absorbing the CO2 of the euglena gracilis. In the process of the mass production and culture of the euglena gracilis, the culture medium can adsorb a large amount of industrial CO2 waste gas, thereby having important meaning to energy saving, emission reduction and environmental protection.
Owner:北京芳能科技有限公司

Novel method for the production of polyunsaturated fatty acids

The present invention relates to an improved process for the specific production of poly-unsaturated omega-3 and omega-6 fatty acids and a process for the production of triglycerides having an increased content of unsaturated fatty acids, in particular omega-3 and omega-6 fatty acids having at least two double bonds and a 20 or 22 carbon atom chain length. The invention relates to the produc-tion of a transgenic organism, preferably a transgenic plant or a transgenic microorganism, hav-ing an increased content of fatty acids, oils or lipids containing C20- or C22- fatty acids with a delta-5, 7, 8, 10 double bond, respectively due to the expression of a delta-8-desaturase and a delta-9- elon-gase from organisms such as plants preferably Algae like Isochrysis galbana or Euglena gracilis. In addition the invention relates to a process for the production of poly unsaturated fatty acids such as Eicosapentaenoic, Arachidonic, Docosapentaenoic or Docosahexaenoic acid through the co- expression of a delta -8-desaturase, a delta-9-elongase and a delta-5 desaturase in organisms such as microorganisms or plants.The invention additionally relates to the use of specific nucleic acid sequences encoding for the aforementioned proteins with delta-8-desaturase-, delta-9-elongase- or delta-5-desaturase-activity, nucleic acid constructs, vectors and organisms containing said nucleic acid sequences. The invention further relates to unsaturated fatty acids and triglycerides having an increased content of at least 1 % by weight of unsaturated fatty acids and use thereof.
Owner:UNIV OF BRISTOL

Anti-aging weight-losing and skin-tightening essence

The invention provides an anti-aging weight-losing and skin-tightening essence which comprises the following ingredients in percentage by mass: 3 to 5 percent of butanediol, 1 to 3 percent of glycerin, 0.05 to 0.2 percent of hyaluronic acid, 0.5 to 2 percent of betaine, 0.5 to 1.5 percent of biosaccharide gum-1 solution, 0.5 to 1.5 percent of a mixture of hydrolyzed collagen and euglena gracilis polysaccharide, 0.1 to 0.5 percent of arginine, 0.1 to 0.5 percent of p-hydroxyacetophenone, 0.02 to 0.1 percent of caprylhydroxamic acid solution, 1.75 percent of a skin conditioner, 0.35 percent of athickening agent and 0.05 percent of a chelating agent. The mixture of hydrolyzed collagen and euglena gracilis polysaccharide is used, and enters the epidermal layer through the skin to realize targeted reticular energy release; elastic fiber cells, glial cells and epithelial cells are fast and continuously activated; the metabolic growth regeneration is accelerated; the elasticity is enhanced;the problem of skin looseness and sagging is solved; and the effect of improving the skin tightness is achieved. The anti-aging weight-losing and skin-tightening essence also uses the hydroxyacetophenone, and has anti-oxidization capability on the skin; the activity of COX-2 can be inhibited; the skin oxidization is delayed; and the luster is maintained.
Owner:济南霜叶红生物科技有限公司

Culture medium of euglena gracilis and open type high-density culture method

The invention provides a culture medium of euglena gracilis, which is added with different inorganic nutrient substances, in particular to nutrient components such as a mixture of ammonium chloride and urea, and the like. In an open culture process, the culture medium not only overcomes the defects that euglena gracilis is easy to pollute by microorganisms and bacteria so as to pollute the environment, and the like in the prior art, but also can ensure that the euglena gracilis quickly utilizes the inorganic nutrient components to accelerate cell division under the condition of not adding an organic carbon source. The culture medium of the invention shortens the grown cycle of the euglena gracilis by 2-5 days compared with a conventional culture medium and has a biomass accumulation being1-1.5 times higher than the conventional culture medium. The culture medium removes the organic carbon source of the conventional culture medium and supplements the carbon source in the mode of CO2, thus the culture medium not only can achieve the purpose of avoiding microorganism pollution, but also can increase the capacity of absorbing the CO2 of the euglena gracilis. In the process of the mass production and culture of the euglena gracilis, the culture medium can adsorb a large amount of industrial CO2 waste gas, thereby having important meaning to energy saving, emission reduction and environmental protection.
Owner:北京芳能科技有限公司

Efficient artificial fry breeding method of outdoor ecological pond for Cephalopholis sonnerati

The invention provides an efficient artificial fry breeding method of an outdoor ecological pond for Cephalopholis sonnerati. The method includes the following steps: (1) performing pretreatment on cultivation environment; (2) putting newly hatched larvae in a pond; (3) performing feeding management before 7 days old, feeding rotifer and euglena gracilis klebs every day when the larvae are 3-5 days old; feeding fortified powder bait every day when the larvae are 4-7 days old, the fortified powder bait including papaya powder, green tangerine powder, yeast powder and active lactobacillus powder; and feeding the rotifer and artemia nauplii every day when the larvae are 6-7 days old; (4) performing feeding management before 7 days old, and respectively and continuously feeding transition baitfor 3-4 days when the larvae are 10 days old and 20 days old; and (5) performing water quality regulation. Thus, the active feeding ability of the larvae before 7 days old can be effectively enhanced; the larvae can be effectively promoted to better adapt the replacing of the bait; the individual nutrient balance and growth balance of the larvae can be enhanced; malformation rates can be reduced;and the survival rates and growth quality of fries can be increased.
Owner:HAINAN CHENHAI AQUATIC CO LTD

Preparation method and application of algae solution of euglena gracilis klebs for determining biotoxicity of particulates in water

InactiveCN108318307AThe real reflection of comprehensive toxicityVerify reliabilityPreparing sample for investigationTesting waterParticulatesEuglena gracilis
The invention relates to a preparation method and application of an algae solution of euglena gracilis klebs for determining the biotoxicity of particulates in water, and belongs to the field of environmental health toxicology. The preparation method comprises the following steps of culture of algae species and preparation of the algae solution, and specifically comprises the following steps: selecting the algae species of the euglena gracilis klebs, inoculating a container which contains a liquid culture medium with the algae species under a sterile condition, completing inoculating, culturing in a constant-temperature illumination incubator until a logarithmic phase, and standing for standby use; carrying out dark treatment on the algae solution which is cultured to the logarithmic phase, and determining OD680nm value by using a spectrophotometer or eliasa; drawing a cell growth curve according to the OD680nm value determined in step B, and selecting the algae solution of the euglenagracilis klebs of which the cell density range is 1*10<5> to 1*10<6> in the logarithmic phase per milliliter, thus determining the biotoxicity of the particulates in the water. The invention also provides determination of the algae solution of the euglena gracilis klebs in determining the biotoxicity of the particulates in the water. Through the preparation method provided by the invention, the biotoxicity of the particulates in the water can be directly expressed.
Owner:NANJING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products