WO2023080399A1 - 세포 내 오일 추출이 용이한 신규한 스키조키트리움 속 균주 및 이를 이용한 오메가3를 함유한 오일 생산방법 - Google Patents
세포 내 오일 추출이 용이한 신규한 스키조키트리움 속 균주 및 이를 이용한 오메가3를 함유한 오일 생산방법 Download PDFInfo
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- WO2023080399A1 WO2023080399A1 PCT/KR2022/011958 KR2022011958W WO2023080399A1 WO 2023080399 A1 WO2023080399 A1 WO 2023080399A1 KR 2022011958 W KR2022011958 W KR 2022011958W WO 2023080399 A1 WO2023080399 A1 WO 2023080399A1
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- Prior art keywords
- microalgae
- schizochytrium
- genus
- biomass
- culture
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Images
Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
- A23K10/16—Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
- A23K10/12—Animal feeding-stuffs obtained by microbiological or biochemical processes by fermentation of natural products, e.g. of vegetable material, animal waste material or biomass
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/158—Fatty acids; Fats; Products containing oils or fats
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/025—Pretreatment by enzymes or microorganisms, living or dead
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/12—Unicellular algae; Culture media therefor
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/12—Unicellular algae; Culture media therefor
- C12N1/125—Unicellular algae isolates
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/14—Fungi; Culture media therefor
- C12N1/145—Fungal isolates
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
- C12R2001/00—Microorganisms ; Processes using microorganisms
- C12R2001/645—Fungi ; Processes using fungi
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
- C12R2001/00—Microorganisms ; Processes using microorganisms
- C12R2001/89—Algae ; Processes using algae
Definitions
- the present application relates to a novel Schizochytrium sp. strain, which is easy to extract intracellular oil, and a method for producing oil containing omega 3 using the same.
- Thraustochytrid survives and distributes in various environments in nature. It adheres to organisms and lives symbiotically, or floats in marine environments or freshwater and brackish water environments, and survives by distributing to various sedimentary terrain layers. These thraustochytrids belong to the lowest tier of the marine ecological food chain, and are also classified as organoheterotrophic protist microalgae as phytoplankton. Thraustochytrids in the natural environment are functionally responsible for the circulation and purification of natural circulating elements such as sulfur, nitrogen, phosphorus, and potassium.
- PUFA polyunsaturated fatty acid
- DHA docosahexaenoic acid
- EPA eicosapentaenoic acid
- docosahexaenoic acid and eicosapentaenoic acid are essential fatty acids for the brain, eye tissue and nervous system, and are known to play an important role in the development of the nervous system, such as vision and motor nerve ability in infants, and prevention of cardiovascular diseases. It is the most abundant component of the structural lipids of the brain.
- the main source of polyunsaturated fatty acids is fish oil extracted from the oil of blue fish such as mackerel, saury, tuna, horse mackerel, sardine, and herring, which is also very useful as a fish feed such as saltwater fish initial feed.
- the extraction and intake of polyunsaturated fatty acids from fish oil has been developed industrially, but there are also disadvantages.
- the quality of fish oil varies depending on the species, season, and fishing location, and it is difficult to supply it continuously because it is generated through fishing.
- there are limitations in the manufacturing process and production volume due to contamination by heavy metals and organic chemicals contained in fish oil, fishy smell peculiar to fish oil, and oxidation of double bonds during the processing process.
- microalgae can provide several advantages over fish oil in addition to their ability to naturally synthesize fatty acids anew. It is possible to supply stably through industrial scale cultivation, and it is possible to manufacture biomass having a relatively constant biochemical composition. Unlike fish oil, lipids produced by microalgae do not have any unpleasant odor. It also has a simpler fatty acid composition compared to fish oil, which facilitates the steps to isolate the major fatty acids.
- DHA docosahexaenoic acid
- EPA eicosapentaenoic acid
- ARA arachidonic acid
- DPA docosapentaenoic acid
- DPA docosapentaenoic acid
- ⁇ -linolenic acid a kind of marine microalgae.
- Polyunsaturated fatty acids are produced by microorganisms of the genus Thraustochytrium and Schizochytrium.
- a method for producing omega-3 polyunsaturated fatty acids using PTA10208 (Schizochytrium sp. PTA10208) has been disclosed (U.S. Patent No. 5,130,242), and additionally, a microorganism of the genus Trauzochytrium, Trauzochytrium sp.
- a method for producing docosahexaenoic acid and eicosapentaenoic acid using ATCC10212 Thraustochytrium sp. PTA10212
- the novel microalgae of the genus Skizochytrium may be CD01-2147 microalgae (Accession No. KCTC14661BP) of the genus Skizochytrium.
- Another example of the present application provides biomass or bio-oil derived from microalgae of the genus Schizochytrium.
- feed composition comprising biomass, bio-oil, or a combination thereof derived from microalgae of the genus Schizochytrium.
- Another example of the present application provides a food composition comprising biomass, bio-oil, or a combination thereof derived from microalgae of the genus Schizochytrium.
- Another example of the present application provides a method for producing biomass or bio-oil derived from microalgae of the genus Schizochytrium.
- Another example of the present application provides a use for producing biomass or bio-oil of the microalgae of the genus Schizochitrium.
- Another example of the present application provides a use for preparing a feed composition or food composition of the microalgae of the genus Schizochitrium.
- One example of the present application provides a novel Schizochytrium sp. microalgae.
- Thraustochytrid refers to microalgae of the order Thraustochytriales.
- Schizochytrium sp is one of the genus names belonging to the Thraustochytriaceae family of the Thraustochytriales order, and the term “ Schizochytrium sp.")" and can be mixed.
- microalgae is a small algae that cannot be seen with the naked eye and can only be seen through a microscope, and refers to living organisms that freely float in water. There are various types of microalgae, including strains that cannot photosynthesize and grow only as heterotrophs.
- a wild-type CD01-1821 strain of the genus Schizochytrium is irradiated with gamma rays to generate mutations, and among the mutant strains, a strain with improved production ability of polyunsaturated fatty acid-containing oil is selected, and this strain is selected from the genus Schizochytrium sp.
- CD01-2147 and on August 23, 2021, it was deposited with the Korea Research Institute of Bioscience and Biotechnology, an international depository institution under the Budapest Treaty (Korean Collection for Type Cultures: KCTC), and was given accession number KCTC14661BP.
- the novel genus Schizochytrium ( Schizochytrium sp.) Microalgae may be CD01-2147 microalgae (Accession No. KCTC14661BP) of the genus Schizochytrium.
- the wild-type strain of the genus Schizochytrium may have the 18s rRNA nucleotide sequence of SEQ ID NO: 1, but is not limited thereto.
- the microalgae of the genus Schizochytrium is a nucleotide sequence showing at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, or at least 99% sequence identity with the nucleotide sequence of SEQ ID NO: 1 It may have 18S rRNA constituting, but is not limited thereto.
- DHA docosahexaenoic acid
- ALA alpha-linolenic acid
- EPA eicosapentaenoic acid
- EPA eicosapentaenoic acid
- EPA is one of polyunsaturated fatty acids having a chemical formula of C 20 H 30 O 2 , and corresponds to omega-3 fatty acids together with ALA and DHA, It may also be abbreviated as 20:5 n-3.
- the microalgae of the genus Schizochytrium may produce and/or contain 35 to 60% by weight of DHA based on the total weight of fatty acids.
- the microalgae of the genus Schizochitrium are 40 to 60% by weight, 45 to 60% by weight, 50 to 60% by weight, 35 to 58% by weight, 40 to 58% by weight, 45 to 60% by weight based on the total weight of fatty acids. 58% by weight, or 48 to 52% by weight of DHA.
- the microalgae of the genus Schizochytrium may produce and/or contain 0.1 to 2% by weight of EPA based on the total weight of fatty acids.
- the microalgae of the genus Schizochitrium are 0.2 to 2% by weight, 0.2 to 1.5% by weight, 0.2 to 1% by weight, 0.3 to 2% by weight, 0.3 to 1.5% by weight, 0.3 to 1.5% by weight based on the total weight of fatty acids. 1 wt%, 0.4 to 2 wt%, 0.4 to 1.5 wt%, 0.4 to 1 wt% or 0.4 to 0.7 wt% EPA.
- the CD01-2147 microalgae of the genus Schizochytrium may be composed of glutamic acid, phenylalanine, lysine, alanine, valine, arginine, methionine, aspartic acid, glycine, leucine, isoleucine and serine.
- microalgae of the genus Skizochytrium the culture of the microalgae, the dried product of the culture, or the biomass or bio-oil derived from microalgae of the genus Skizochytrium, including the lysate of the dried product to provide.
- microalgae of the genus Schizochytrium are as described above.
- biomass refers to living organisms such as plants, animals, and microorganisms that can be used as chemical energy, that is, an energy source of bioenergy, and ecologically refers to a specific energy source that exists within a unit time and space. It also means the weight or energy amount of living things.
- the biomass includes, but is not limited to, compounds secreted by cells, and may contain cells and/or intracellular contents as well as extracellular materials.
- the biomass may be a product produced by culturing or fermenting the microalgae itself, a culture thereof, a dried product thereof, a lysate thereof, or the microalgae of the genus Skizochytrium, or a concentrate of the biomass or It may be a dried product, but is not limited thereto.
- the "culture” of microalgae in the genus Schizochytrium refers to a product produced by culturing the microalgae, specifically, it may be a culture medium containing microalgae or a culture filtrate from which microalgae are removed from the culture medium, It is not limited thereto.
- the "dried product" of the microalgae culture of the genus Schizochytrium is one from which moisture is removed from the microalgae culture, for example, it may be in the form of a dry cell cell of the microalgae, but is not limited thereto.
- the "crushed material" of the dried material is a generic term for the result of crushing the dried material from which moisture is removed from the microalgae culture, and may be, for example, dry cell powder, but is not limited thereto.
- the culture of microalgae of the genus Schizochytrium may be prepared by inoculating the microalgae in a microalgae culture medium and culturing methods known in the art, and dried products of the culture and lysates thereof are also known in the art. It can be prepared according to the treatment or drying method of microalgae or culture medium.
- the biomass derived from microalgae of the genus Skizochytrium is 40 to 85% by weight, 45 to 80% by weight, 50 to 75% by weight, 50 to 70% by weight, based on the total weight of biomass, 54 to 66% by weight of crude fat It may contain.
- the biomass derived from microalgae of the genus Skizochytrium may contain 1 to 20% by weight, 3 to 17% by weight, 5 to 15% by weight, or 7 to 13% by weight of crude protein based on the total weight of biomass. .
- the biomass derived from microalgae of the genus Schizochytrium may contain 35% by weight or more, or 35 to 60% by weight of DHA based on the total weight of fatty acids, and 0.1% by weight or more, or 0.1% by weight based on the total weight of fatty acids. to 2% by weight of EPA, and 30 to 40% by weight or more of palmitic acid based on the total weight of fatty acids.
- the biomass derived from microalgae of the genus Schizochytrium may have an oil recovery rate of 55 to 95%, 55 to 90%, 57 to 88%, or 59 to 88% based on the total weight of biomass, but is limited thereto no.
- the oil recovery rate can be measured by treatment with protease, cellulase, pectinase or chitinase, preferably by treatment with Alcalase. However, it is not limited thereto.
- the oil recovery rate means the amount of oil that can be extracted when oil is extracted through an experiment among the intracellular oil content, that is, the crude fat content.
- the “crude fat content” may be used interchangeably with “crude fat content” or “total lipids” or “total fatty acids” or “TFA” or “oil content”.
- the biomass may be produced by a method for producing biomass derived from microalgae of the genus Schizochytrium according to one aspect.
- compositions comprising CD01-2147 microalgae of the genus Schizochytrium sp., a culture of the microalgae, a dried product of the culture, and a lysate of the dried product.
- the composition may include biomass, bio-oil, or a combination thereof derived from microalgae of the genus Schizochytrium.
- Another aspect of the present application provides a feed composition comprising biomass derived from CD01-2147 microalgae of the genus Schizochytrium sp., or a concentrate or dried product of the biomass.
- microalgae of the genus Schizochytrium, biomass, the culture of the microalgae, the dried product of the culture, and the lysate of the dried product are as described above.
- the concentrate or dried product of the biomass may be prepared according to methods for treating, concentrating, or drying microbial biomass known in the art.
- bio-oil refers to oil obtained from biomass by biological, thermochemical and physicochemical extraction processes, and the bio-oil prepared in this application contains polyunsaturated fatty acids. It may be one, and may specifically contain DHA and EPA, but is not limited thereto.
- the bio-oil may include an extract of biomass.
- a method for producing the bio-oil extract a method of utilizing enzymes such as protease, cellulase, pectinase or chitinase according to the method of disrupting or dissolving cell membrane or cell wall components, homogenizer, sonicator, bead treatment
- a method of physically disrupting cell membranes or cell wall components by using a method, a method of directly adding a solvent and permeating into cells for extraction, and a solventless extraction step of separating through centrifugation after various disruption processes may be used. It is not limited.
- the composition may be in the form of a solution, powder, or suspension, but is not limited thereto.
- the composition may be, for example, a food composition, a feed composition or a feed additive composition.
- feed composition refers to feed fed to animals.
- the feed composition refers to a material that supplies organic or inorganic nutrients necessary for maintaining the life of animals or producing meat, milk, and the like.
- the feed composition may additionally include necessary nutrients for maintaining animal life or producing meat, milk, and the like.
- the feed composition can be prepared with various types of feed known in the art, and specifically, may include concentrated feed, roughage and / or special feed.
- feed additive is added to feed for various purposes, such as supplementation of nutrients and prevention of weight loss, enhancement of digestibility of fiber in feed, improvement of oil quality, prevention of reproductive disorders and improvement of conception rate, and prevention of high temperature stress in summer.
- vitamins such as vitamin E, vitamins A, D, E, nicotinic acid, and vitamin B complex, protected amino acids such as methionine and lysine, protected fatty acids such as calcium salts of fatty acids, probiotics (lactic acid bacteria), yeast culture, mold fermentation Probiotics such as water, yeast agents, and the like may be further included.
- the term "food composition” includes all forms of functional food, nutritional supplements, health food and food additives, and The food composition may be prepared in various forms according to conventional methods known in the art.
- Compositions of the present application may include grains such as milled or crushed wheat, oats, barley, corn and rice; vegetable protein feeds such as feeds based on soybean and sunflower; animal protein feed such as blood meal, meat meal, bone meal and fish meal; It may further include sugar and dairy products, for example, dry ingredients composed of various powdered milk and whey powder, and the like, and may further include nutritional supplements, digestion and absorption enhancers, growth promoters, and the like.
- composition of the present application may be administered to animals alone or in combination with other feed additives in an edible carrier.
- the composition can be easily administered to animals as a top dressing or directly mixed with feed, or as an oral formulation separate from feed.
- a pharmaceutically acceptable edible carrier as is well known in the art.
- Such edible carriers can be solid or liquid, for example corn starch, lactose, sucrose, soybean flakes, peanut oil, olive oil, sesame oil and propylene glycol.
- a solid carrier the composition may be a tablet, capsule, powder, troche or sugar-containing tablet, or a top dressing in a microdispersible form.
- a liquid carrier is used, the composition may be in the form of a gelatin soft capsule, or a syrup, suspension, emulsion, or solution.
- composition of the present application may contain, for example, a preservative, a stabilizer, a wetting or emulsifying agent, a cryoprotectant, or an excipient.
- the cryoprotectant may be at least one selected from the group consisting of glycerol, trehalose, maltodextrin, skim milk powder and starch.
- the preservative, stabilizer, or excipient may be included in the composition in an effective amount sufficient to reduce deterioration of microalgae of the genus Schizochytrium included in the composition.
- the cryoprotectant may be included in the composition in an effective amount sufficient to reduce the degradation of microalgae of the genus Schizochytrium included in the composition when the composition is in a dried state.
- composition may be used by adding it to animal feed by dripping, spraying or mixing.
- the composition of the present application can be applied to a number of animal diets, including mammals, birds, fish, crustaceans, cephalopods, reptiles and amphibians, but is not limited thereto.
- the mammals may include pigs, cows, sheep, goats, laboratory rodents, or pets, and the birds may include poultry, which include chickens, turkeys, ducks, geese, It may include pheasant, or quail, etc., but is not limited thereto.
- the fish may include commercial livestock fish and their fry, ornamental fish, and the like, and the crustaceans may include shrimp, barnacles, and the like, but are not limited thereto.
- the composition can be applied to the diet of rotifers, which are zooplankton.
- Another aspect of the present application is culturing CD01-2147 microalgae of the genus Schizochytrium ( Schizochytrium sp.); and recovering biomass from the microalgae, the culture of the microalgae, the dried product of the culture, or the lysate of the dried product.
- microalgae of the genus Schizochytrium, biomass, the culture of the microalgae, the dried product of the culture, and the lysate of the dried product are as described above.
- the term "culture” means to grow the microalgae under appropriately controlled environmental conditions.
- the culturing process of the present application may be performed according to appropriate media and culture conditions known in the art. This culturing process can be easily adjusted and used by those skilled in the art according to the selected microalgae.
- the cultivation of microalgae of the genus Schizochytrium of the present application may be performed under heterotrophic conditions, but is not limited thereto.
- heterotrophic is a nutritional method that relies on organic matter obtained from outside the body as an energy source or nutrient source, and is a term corresponding to autotrophic, and can be used interchangeably with the term 'cancer culture'.
- the step of culturing the microalgae of the genus Schizochytrium is not particularly limited thereto, but may be performed by a known batch culture method, continuous culture method, fed-batch culture method, or the like.
- the medium and other culture conditions used for culturing microalgae of the present application any medium used for culturing conventional microalgae may be used without particular limitation.
- the microalgae of the present application can be cultured while controlling temperature, pH, etc. under aerobic conditions in a conventional medium containing appropriate carbon sources, nitrogen sources, phosphorus, inorganic compounds, amino acids, and/or vitamins.
- a basic compound eg sodium hydroxide, potassium hydroxide or ammonia
- an acidic compound eg phosphoric acid or sulfuric acid
- pH eg pH 5 to 9, specifically pH 6 to 8, most specifically may adjust pH 6.8
- oxygen or oxygen-containing gas may be injected into the culture, or nitrogen, hydrogen or carbon dioxide gas may be injected without gas injection or nitrogen, hydrogen or carbon dioxide gas may be injected to maintain the anaerobic and non-aerobic state. It is not limited.
- the culture temperature may be maintained at 20 to 45 ° C or 25 to 40 ° C, and may be cultured for about 10 to 160 hours, but is not limited thereto.
- foaming may be suppressed using an antifoaming agent such as a fatty acid polyglycol ester, but is not limited thereto.
- the carbon source contained in the medium used in the step of culturing the microalgae of the genus Schizochytrium is any one selected from the group consisting of glucose, fructose, maltose, galactose, mannose, sucrose, arabinose, xylose and glycerol It may be more than one, but if it is a carbon source used for culturing microalgae, it is not limited thereto.
- the nitrogen source contained in the medium used in the step of culturing the microalgae of the genus Schizochytrium is i) any one or more organic substances selected from the group consisting of yeast extract, beef extract, peptone and tryptone Sowon, or ii) any one or more inorganic nitrogen sources selected from the group consisting of ammonium acetate, ammonium nitrate, ammonium chloride, ammonium sulfate, sodium nitrate, urea, and MSG (Monosodium glutamate), but used for culturing microalgae As long as it is a nitrogen source, it is not limited thereto.
- potassium dihydrogen phosphate, dipotassium hydrogen phosphate, sodium-containing salts corresponding thereto may be individually included or mixed as a phosphorus source, but this Not limited.
- the step of recovering biomass from the microalgae, the culture of the microalgae, the dried material of the culture, or the lysate of the dried material may be to collect the desired biomass using a suitable method known in the art. For example, centrifugation, filtration, anion exchange chromatography, crystallization, and HPLC may be used, and a purification process may be further included.
- Another aspect of the present application is culturing CD01-2147 microalgae of the genus Schizochytrium ( Schizochytrium sp.); and recovering lipids from the microalgae, the culture of the microalgae, the dried product of the culture, or the lysate of the dried product.
- the step of culturing the microalgae, bio-oil, the culture of the microalgae, the dried product of the culture, the lysate of the dried product, and the microalgae in the genus Schizochytrium is as described above.
- the step of recovering the lipid from the microalgae, the culture of the microalgae, the dried product of the culture, or the lysate of the dried product may be to collect the desired lipid using a suitable method known in the art. For example, centrifugation, filtration, anion exchange chromatography, crystallization, and HPLC may be used, and a purification process may be further included.
- lipids and lipid derivatives such as fatty aldehydes, fatty alcohols and hydrocarbons (eg alkanes) can be extracted with a hydrophobic solvent such as hexane.
- Lipids and lipid derivatives can also be extracted using methods such as liquefaction, oil liquefaction and supercritical CO 2 extraction.
- a known microalgal lipid recovery method includes, for example, i) collecting cells by centrifugation, washing with distilled water, drying by freeze drying, ii) grinding the obtained cell powder, n- There is a method of extracting lipids with hexane (Miao, X and Wu, Q, Biosource Technology (2006) 97:841-846).
- Another aspect of the present application is genus Schizochytrium ( Schizochytrium sp.) CD01-2147 microalgae, a culture of the microalgae, a dried product of the culture, or a biomass or bio-oil of the lysate of the dried product. provides a use for Schizochytrium ( Schizochytrium sp.) CD01-2147 microalgae, a culture of the microalgae, a dried product of the culture, or a biomass or bio-oil of the lysate of the dried product. provides a use for
- microalgae of the genus Schizochytrium, biomass, the culture of the microalgae, the dried product of the culture, and the lysate of the dried product are as described above.
- Another example of the present application is Schizochytrium sp. CD01-2147 microalgae, a culture of the microalgae, a dry product of the culture, or a use for preparing a feed composition or a food composition of a lysate of the dried product.
- microalgae of the genus Schizochytrium, biomass, the culture of the microalgae, the dried product of the culture, and the lysate of the dried product are as described above.
- the novel thraustochytrid-based microalgae of the present invention have a high fat content in biomass, and among them, a high content of unsaturated fatty acids such as docosahexaenoic acid and eicosapentaenoic acid, so that they can be used by themselves or in culture and fermentation. It is very easy to extract biomass produced by the biomass and fat components including unsaturated fatty acids from the biomass. Accordingly, the microalgae, dried biomass and bio-oil prepared therefrom can be usefully utilized as a composition for feed or a composition for food.
- FIG. 1 is a schematic diagram showing a process for isolating a Thraustochytrid-based microalgae strain.
- Figure 2 analyzes the total lipid content of 29 species of isolated thraustochytrid microalgae, docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) content in omega-3. This is the diagram showing the result.
- DHA docosahexaenoic acid
- EPA eicosapentaenoic acid
- FIG. 3 is a photograph of wild-type Schizochytrium sp. strain CD01-1821 observed under an optical microscope.
- FIG. 4 is a diagram showing the sugar consumption rate and optical density at 680 nm of wild-type Schizochytrium sp. strain CD01-1821 and four selected mutant strains.
- Thraustochytrid family of microalgae In order to isolate the Thraustochytrid family of microalgae, environmental samples in the form of seawater, leaves and sediments were collected from a total of 40 areas in the west coast of Korea, Seocheon, Gunsan, Buan and Yeonggwang-gun coastal areas. Sampling was conducted focusing on specific areas where organic sediments were developed and observed, and the collected environmental samples were transported to the laboratory environment within 7 days and bacteria, microorganisms and fungi, except for the Thraustochytrid family microalgae to be separated, Removal of other contaminants such as protozoa was carried out.
- Thraustochytrid-based microalgal cells were isolated (FIG. 1).
- the separation and culture medium used in the separation process is a modified YEP medium (yeast extract 0.1 g / L, peptone 0.5 g / L, MgSO 4 7H 2 O 2 g / L, sea salt 50 g /L, H 3 BO 3 5.0mg/L, MnCl 2 3.0mg/L, CuSO 4 0.2mg/L, NaMo 4 2H 2 O 0.05mg/L, CoSO 4 0.05mg/L, ZnSO 4 7H 2 O 0.7 mg/L, 15 g/L of agar) was used. Through several isolation and subculture processes, pure isolated colonies free of contaminants could be obtained. 30 mg/L, penicillin G 0-30 mg/L, kanamycin sulfate 0-30 mg/L) in a solid medium containing a contaminant control and removal process again to obtain pure isolate colonies.
- YEP medium yeast extract 0.1 g / L, peptone 0.5 g / L, MgSO 4 7
- the colonies isolated in Example 1 were modified with modified GGYEP medium (glucose 5g/L glycerol 5g/L, yeast extract 0.1g/L, peptone 0.5g/L, MgSO 4 7H 2 O 2g/L, Sea salt 50g/L, H 3 BO 3 5.0mg/L, MnCl 2 3.0mg/L, CuSO 4 0.2mg/L, NaMo 4 2H 2 O 0.05mg/L, CoSO 4 0.05mg/L, ZnSO 4 7H 2 O 0.7mg / L) was incubated for about 2 days in a 250mL flask at 10-35 °C, 100-200rpm conditions.
- modified GGYEP medium glucose 5g/L glycerol 5g/L, yeast extract 0.1g/L, peptone 0.5g/L, MgSO 4 7H 2 O 2g/L, Sea salt 50g/L, H 3 BO 3 5.0mg/L, MnCl
- 29 species of microalgae capable of growing at a temperature of 30 ° C or higher, having excellent growth rates and securing a cell mass were selected.
- the selected microalgae strains were subjected to modified GYEP medium containing 30 g/L of glucose as a carbon source and culture conditions of 30° C., 150 rpm, and 500 ml flask scale culture for 2 days. After confirming that all the carbon sources introduced in the culture environment for 2 days were consumed, the entire culture medium was recovered and dried overnight in a 60° C. dry oven to obtain biomass.
- the following method was used to analyze the lipid and polyunsaturated fatty acid content of the cultured microalgae cells, and the microalgae-derived fatty acid-containing oil using the dried cells was measured by the following method. After adding 8.3M hydrochloric acid solution (HCl) to 5 g of dried cells to hydrolyze the cell walls of microalgae cells at 80 ° C, 30 mL of ethyl ether and 20 mL of petroleum ether were added, mixed for 30 seconds, and then centrifuged was repeated three or more times. The separated solvent layer was recovered, transferred to a pre-weighed round flask, and then the solvent was removed through nitrogen purging and cooled in a desiccator (Desicator) to a constant weight.
- HCl hydrochloric acid solution
- the weight of the dried oil was measured by subtracting the weight of the empty flask from the weight of the flask to calculate the total oil content.
- the content of docosahexaenoic acid (DHA) contained in the oil was pretreated with methanolic 0.5N NaOH and 14% trifluoroboranemethanol (BF 3 ) and was measured by gas chromatography.
- Biomass in Table 1 below means the cell concentration in the culture medium, and may be used in combination with DCW (dry cell weight) in Table 2 below.
- TFA in the table above means total fatty acid, and may be used in combination with crude fat content, crude fat content, or total lipid.
- the seed cultured flask was dispensed and inoculated into a 5L incubator.
- a glucose carbon source of 28% compared to the total culture medium was supplied, cultured for about 72 hours, and cultured in a sterilized MJW02 medium and culture environment at 30 ° C, 500 rpm, 1.5 vvm, and pH 5-8.
- the CD01-1821 strain had a higher total biomass production and crude fat content than the CD01-1822 strain under the same fermentation conditions. It was confirmed that it is easier for the scale-up process because it is high. Accordingly, the CD01-1821 strain was selected and utilized for strain sequence identification and additional strain development. The morphology of the selected CD01-1821 strain was observed using an optical microscope and is shown in FIG. 3 .
- glucose is mainly used as a raw material for the carbon source.
- Glucose at this time is a monosaccharide in a refined form of 90% or more, and its cost is higher during fermentation on an industrial scale than other carbon source raw material components.
- the CD01-1821 strain and the CJM01 (registered patent 10-2100650) strain selected in Example 2 were fermented in raw sugar containing glucose, fructose or sucrose as the main component. Evaluation of fermentation culture was performed to confirm the culture characteristics. Cultivation was carried out in a 30L incubator, and the main carbon source components were glucose 450 g/L, glucose 225 g/L and fructose 225 g/L mixture, glucose 225 g/L, fructose 220 g based on the modified MJW02 medium. /L and raw sugar decomposition products containing 1.51 g/L of sulfate were tested, respectively. The culture conditions were set identically to 30 ° C., 500 rpm, 1.5 vvm, and pH 5-8 conditions, and 35% of the carbon source of the total culture volume was supplied, respectively.
- the CD01-1821 strain showed equal or higher levels of total biomass production and crude fat content even when fermented under the conditions of a fructose mixture or a raw sugar hydrolyzate medium rather than a glucose monocomponent.
- the CJM01 strain showed a diauxic growth form of dualized carbon source consumption and cell growth pattern as sugar components other than glucose components were added to the medium, and the total culture time was prolonged.
- the CD01-1821 strain was able to confirm the possibility of scaled-up fermentation under complex carbon source conditions.
- PCR amplification was performed using primers 18s-Fwd and LABY-ARev for gene amplification of the 18s rRNA site described in Table 4. .
- sequence number primer Sequence (5' - 3') 2 18S-Fwd AAC CTG GTT GAT CCT GCC AGT 3 LABY-ARev GGG ATC GAA GAT GAT TAG
- the PCR reaction was denatured at 95 ° C for 5 minutes using a reaction solution containing taq polymerase, followed by 35 cycles of denaturation at 95 ° C for 30 seconds, annealing at 50 ° C for 30 seconds, and polymerization at 72 ° C for 2 minutes, Polymerization was performed at 72° C. for 5 minutes.
- the reaction solution amplified through the PCR process was electrophoresed on a 1% agarose gel to confirm that a DNA fragment of about 1000 bp size was amplified, and sequencing analysis was performed. The sequence obtained as a result of the analysis was searched by NCBI BLAST, and the Schizochytrium limacinum strain belonging to the Thraustochytrid family microalgae.
- the isolated microalgae CD01-1821 is a novel strain of the genus Schizochytrium, and it was named the strain CD01-1821 of the genus Schizochytrium ( Schizochytrium sp.), and as of August 23, 2021, Korea Biotechnology It was deposited with the Institute of Biological Resources Center (Korean Collection for Type Cultures: KCTC) and was given accession number KCTC14660BP.
- Example 5-1 Mortality measurement according to gamma ray irradiation
- the gamma-ray irradiation conditions were selected by measuring the mortality rate according to the gamma-ray dose.
- the novel microalgae CD01-1821 were cultured for about 10 hours in a modified GGYEP medium containing 5 g/L of glucose and glycerol, respectively. This period is judged to be the Early Exponential phase phase in which zoospores observed on the life cycle of microalgae of the Thraustochytrid family are mainly generated and distributed, and more efficient genetics For red mutation, the cell culture medium of the corresponding period was obtained and used. The culture medium sample was centrifuged (4000 rpm, 20 minutes) to harvest only the cells from which the culture medium was removed, and suspended in 0.1M phosphate buffer solution containing 1.5% NaCl to be 10 9 cells/mL.
- Microalgae cell samples suspended in the NaCl 1.5%-0.1M phosphate buffer were used in gamma-ray-derived artificial mutant strain development experiments.
- the gamma ray irradiation experiment was conducted at the Advanced Radiation Research Institute of the Korea Atomic Energy Research Institute, and was conducted by irradiating a gamma ray dose of 5 to 8 kGY.
- the gamma-irradiated suspension sample undergoes a recovery process overnight, then is inoculated and spread on GYEP medium containing 20 g/L of agar, incubated at 30°C for about 5 days, and then the number of growing colonies is counted to determine the amount of gamma dose. Star mortality was measured.
- Mortality (%) [ ⁇ (Number of colonies in the untreated area) - (Number of colonies in the treated area) ⁇ /(Number of colonies in the untreated area)] X 100
- the appropriate dose at which the number of growing colonies and the CFU value of the number of viable cells were reduced by 95% or more according to the dose of gamma ray irradiation was confirmed. Specifically, 91.1%, 95.3%, 100%, and 100% of the cells were killed at gamma-ray irradiation doses of 6.5, 7.0, 7.5, and 8.0 kGY, respectively. In the gamma-ray dose condition of 7.5 GY or more, all were killed and microalgae colonies could not be secured, and a gamma-ray dose condition of 7.0 kGY showing a mortality rate of 95.3% was selected.
- the microalgae culture medium sample was treated with 20 g/L of agar and a cycloacid that inhibits fatty acid synthesis ( Cycloate) was cultured in GYEP medium.
- a cycloacid that inhibits fatty acid synthesis Cycloate
- Microalgal colonies grown during the culture period of about 4 weeks were selected and subcultured in the same medium and culture environment conditions. Strains capable of continuous growth between passages and excellent colony growth were preferentially selected. In addition, morphologically white and slippery colonies were selected.
- the mutant strains selected in Example 5-2 were cultured on a flask scale to analyze the sugar consumption rate, and excellent mutant strains were selected through crude fat and fatty acid analysis.
- the final volume in a 500mL flask was set to 50mL, and glucose In a GYEP medium containing 30 g/L, cultured at 30° C. and 180 rpm for 20 hours to obtain a certain amount of cells that can be analyzed.
- glucose In a GYEP medium containing 30 g/L, cultured at 30° C. and 180 rpm for 20 hours to obtain a certain amount of cells that can be analyzed.
- the amount of remaining glucose and optical density at 680 nm were analyzed, and through this, the rate of sugar consumption was measured.
- the 4 strains selected above were re-evaluated in a 5L fermenter.
- the GYEP medium culture containing 30 g / L was used as a seed culture, and it was divided into a 5L fermenter containing sterilized MJW02 medium and cultured at 30 ° C., 500 rpm, 1.5 vvm, and pH 5-8 conditions.
- CD01-2147 the strain with the best growth, was measured and evaluated for the consumption rate of glucose, a major carbon source, and optical density and dry cell weight (g/L), which are identified as growth indicators, during the 15-hour cultivation period. Final selection.
- CD01-2147 in the skijochytrium was deposited with the Korea Research Institute of Bioscience and Biotechnology (Korean Collection for Type Cultures: KCTC) as of August 23, 2021, and was given accession number KCTC14661BP.
- Example 6-1 Cultivation of strain CD01-1821 and strain CD01-2147
- the strain CD01-2147 of the genus Skizochytrium was cultured for 60 hours in a 5L fermentor by supplying 35% of the total culture medium as a glucose carbon source.
- sterilized MJW02 medium was used and cultured in a 500 mL flask at 30 ° C. and 150 rpm for about 20 hours.
- the seed cultured flask was dispensed and inoculated into a 5L fermentor, and cultured in a sterilized MJW02 medium and culture environment at 30 ° C., 500 rpm, 1.5 vvm, and pH 5-8 conditions. After the completion of the culture, the cells from which the supernatant was removed were used in experiments for measuring the content of crude fat, fatty acid, and crude protein, and extracting and recovering intracellular oil.
- Example 6-2 Crude Fat and Fatty Acid Content Analysis of CD01-1821 and CD01-2147 Culture Fluid Samples
- Example 6-1 the intracellular crude fat and fatty acid contents were analyzed in the same manner as described in Example 2.
- C16 0 means palmitic acid
- omega-3 fatty acid means the sum of docosahexaenoic acid and eicosapentaenoic acid.
- Example 6-3 Crude protein content analysis of culture medium samples of CD01-1821 and CD01-2147 strains
- each dried fermentation broth (sample) corresponding to about 20 to 30 mg were precisely measured and placed in a digestion tube, and 2 tablets of a digestion promoter were added.
- the decomposition promoter is efficiently decomposed when the ratio of sulfuric acid (H 2 SO 4 ) and potassium sulfate (K 2 SO 4 ) is 1.4 to 2.0:1.0.
- 12 to 15 mL of concentrated sulfuric acid (H 2 SO 4 ) is added to the digestion tube and digested for 45 to 60 minutes in a digestion device at 420 ° C. When it became transparent yellow (in the case of using a selenium catalyst), it was cooled to room temperature. After cooling, 80 mL of distilled water was added to the decomposed test solution.
- the distillate was titrated using a hydrochloric acid solution (usually 0.1N or 0.2N) until the end point reached a pale pink color, and the amount of acid used for titration was recorded. In the case of an automatic device, distillation, titration, and calculation are all performed automatically. Nitrogen% was derived by the following formula 2 using the above experimental results. Protein quantification was indicated by multiplying the previously derived nitrogen % by the average nitrogen coefficient of 6.25.
- Nitrogen (%) ⁇ (amount of HCl mL - blank test mL) x M x 14.01/sample amount mg ⁇ x 100
- Boric acid solution 1% (or 4%) boric acid solution diluted to 10L by adding 100g (or 400g) of H 3 BO 3 , 100mL of 0.1% bromocresol green solution, and 100mL of 0.1% methyl red solution.
- the crude protein content in CD01-2147 dried cells was 10%.
- the amino acid content in dried cells was highest in glutamic acid, followed by phenylalanine, lysine, alanine, valine, arginine, methionine, aspartic acid, glycine, leucine, isoleucine, and serine.
- the amino acids in the dried CD01-2147 cells were composed of glutamic acid, phenylalanine, lysine, alanine, valine, arginine, methionine, aspartic acid, glycine, leucine, isoleucine, and serine.
- Example 6-4 Oil recovery analysis of CD01-1821 strain and CD01-2147 strain fermentation broth
- an oil extraction experiment was conducted for the cultured microalgae fermentation broth. After warming the culture medium to 60 °C, the pH was adjusted to 7 using a NaOH 50% solution. 0.2% (w/w) of Alcalase (Alcalase 2.4FG, Novozymes) was added to the weight of the fermentation broth, followed by stirring at 60° C. for 3 hours. The recovery rate from the oil of the supernatant obtained by centrifuging the enzyme-reacted fermentation broth at 3800 g was compared.
- the oil recovery rate means the amount of oil that can be extracted when oil is extracted through an experiment among the intracellular oil content, that is, the crude fat content.
- DCW crude fat content Crude Protein Content oil recovery rate (g/L) (%, /Biomass) (%, /Biomass) (%, /crude fat mass) CD01-1821 119 57 17 38 CD01-2147 148 65 10 87
- Example 7 Schizochytrium sp. Identification of culture characteristics of strain SR21 and mutant strain CD01-2147 of the genus Schizochytrium
- Example 7-1 Cultivation of strain SR21 and strain CD01-2147
- Example 7-2 Oil recovery analysis of strain SR21 and strain CD01-2147 fermentation broth
- an oil extraction experiment was conducted for the cultured microalgae fermentation broth. After warming the culture medium to 60 °C, the pH was adjusted to 7 using a NaOH 50% solution. In comparison to the cell concentration in the fermentation broth, 15% (w/w) of Alcalase (Alcalase 2.4FG, Novozymes) was added and reacted at 60 ° C. for 3.5 hours with stirring. The enzyme-reacted fermentation broth was centrifuged at 3800 g to recover oil in the supernatant. It was confirmed that the recovered supernatant was a layer in which oil and emulsified substances were mixed. The supernatant was heat-treated for 30 minutes while stirring at 75° C., and then centrifuged at 3800 g to recover oil from the supernatant.
- Alcalase Alcalase 2.4FG, Novozymes
- DCW crude fat content Crude Protein Content oil recovery rate (g/L) (%, /Biomass) (%, /Biomass) (%, /crude fat mass) CD01-2147 167 55 12 60 SR21 159 56 27 23
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Abstract
Description
총 오일 (%/바이오매스) | 지방산함량 (%/TFA) | ||
DHA | EPA | ||
1811 | 40.01 | 19.46 | 1.72 |
1812 | 36.03 | 17.90 | 1.80 |
1813 | 34.21 | 19.40 | 2.10 |
1814 | 38.67 | 18.90 | 1.98 |
1815 | 28.89 | 17.90 | 2.92 |
1816 | 23.84 | 17.64 | 3.38 |
1821 | 31.53 | 57.25 | 0.71 |
1822 | 43.18 | 58.68 | 0.53 |
1831 | 29.80 | 29.38 | 1.98 |
1832 | 31.50 | 33.35 | 1.61 |
1833 | 22.36 | 37.26 | 2.83 |
1834 | 23.44 | 36.12 | 2.22 |
1835 | 39.03 | 29.85 | 0.70 |
1836 | 21.73 | 35.77 | 2.76 |
1837 | 18.39 | 33.30 | 2.96 |
1838 | 19.81 | 38.77 | 2.76 |
1839 | 20.76 | 37.91 | 3.06 |
18310 | 20.65 | 39.93 | 2.85 |
18311 | 22.96 | 40.17 | 2.70 |
18312 | 18.26 | 39.27 | 3.31 |
18313 | 21.99 | 36.68 | 2.69 |
1841 | 26.33 | 19.40 | 1.06 |
1842 | 35.53 | 21.75 | 1.38 |
1843 | 34.83 | 18.67 | 1.02 |
1844 | 29.74 | 23.92 | 1.65 |
1845 | 33.23 | 19.89 | 0.89 |
1846 | 28.23 | 20.63 | 1.13 |
1847 | 31.37 | 18.56 | 0.91 |
1848 | 30.51 | 42.74 | 1.06 |
1849 | 29.19 | 20.46 | 1.50 |
18410 | 24.63 | 25.17 | 1.84 |
18411 | 21.93 | 25.75 | 1.96 |
Schizochytrium sp. CD01-1821 | Schizochytrium sp. CD01-1822 | |
배양시간 (hr) | 71.5 | 71.5 |
O.D (680nm) | 154.2 | 103 |
DCW (g/L) | 139.5 | 103 |
조지방량 (%) | 58.6 | 49.7 |
Schizochytrium sp. CD01-1821 | Thraustochytrium sp. CJM01 | |||||
탄소원 | 글루코스 | 글루코스+프럭토스 혼합물 | 원당(Sucrose) 분해물 | 글루코스 | 글루코스+프럭토스 혼합물 | 원당(Sucrose) 분해물 |
배양시간 (hr) | 54.7 | 56.1 | 7.3 | 60 | 66.83 | 83.3 |
O.D (680nm) | 169.3 | 143.7 | 177.9 | 152.7 | 180.4 | 155.7 |
DCW (g/L) | 163 | 160 | 161 | 130 | 150 | 138 |
조지방량 (%) | 60.7 | 60.1 | 60.3 | 61.2 | 61.7 | 59.3 |
서열번호 | 프라이머 | 서열 (5' - 3') |
2 | 18S-Fwd | AAC CTG GTT GAT CCT GCC AGT |
3 | LABY-ARev | GGG ATC GAA GAT GAT TAG |
감마선 선량 (kGY) | 생육 콜로니 수 (EA) | 사멸률 (%) |
6.0 | ≥ 190 | - |
6.5 | ≥ 17 | 91.1 |
7.0 | ≥ 9 | 95.3 |
7.5 | 0 | 100 |
8.0 | 0 | 100 |
방사선 무처리구 | ≥ 90 | 0 |
Schizochytrium sp. CD01-1821 | Schizochytrium sp. CD01-2147 | |
배양시간(hr) | 34 | 29 |
O.D (680nm) | 248.7 | 208.1 |
DCW (g/L) | 148.3 | 141.7 |
조지방량 (%) | 58.3 | 61.8 |
조지방 중 지방산 (%) | ||
- C16:0 | 33.3 | 36.1 |
- omega-3 지방산 | 45.8 | 49.6 |
Schizochytrium sp. CD01-1821 | Schizochytrium sp. CD01-2147 | |
조단백량 (%) | 17 | 10 |
아미노산량 (mg/L) | ||
아스파르트산 | 78.44 | 67.03 |
트레오닌 | 0.00 | 0.00 |
세린 | 108.65 | 43.80 |
글루탐산 | 790.80 | 343.28 |
글라이신 | 165.08 | 53.74 |
알라닌 | 172.72 | 113.90 |
시스테인 | 0.00 | 0.00 |
발린 | 96.35 | 108.29 |
메티오닌 | 46.54 | 74.13 |
이소류신 | 16.88 | 45.65 |
류신 | 13.17 | 51.95 |
타이로신 | 229.64 | 0.00 |
페닐알라닌 | 166.55 | 302.06 |
리신 | 85.83 | 174.62 |
히스티딘 | 0.00 | 0.00 |
아르기닌 | 114.15 | 94.51 |
DCW | 조지방 함량 | 조단백 함량 | 오일 회수율 | |
(g/L) | (%, /Biomass) | (%, /Biomass) | (%, /조지방량) | |
CD01-1821 | 119 | 57 | 17 | 38 |
CD01-2147 | 148 | 65 | 10 | 87 |
DCW | 조지방 함량 | 조단백 함량 | 오일 회수율 | |
(g/L) | (%, /Biomass) | (%, /Biomass) | (%, /조지방량) | |
CD01-2147 | 167 | 55 | 12 | 60 |
SR21 | 159 | 56 | 27 | 23 |
Claims (14)
- 신규한 스키조키트리움 속(Schizochytrium sp.) CD01-2147 미세조류(기탁번호 KCTC14661BP).
- 제1항에 있어서, 상기 스키조키트리움 속 CD01-2147 미세조류는 오메가-3 불포화 지방산 생산능을 가지는, 스키조키트리움 속 미세조류.
- 제2항에 있어서, 상기 오메가-3 불포화 지방산은 도코사헥사엔산(Docosahexaenoic acid: DHA) 및 에이코사펜타엔산(eicosapentaenoic acid: EPA)인, 스키조키트리움 속 미세조류.
- 제3항에 있어서, 상기 미세조류는 지방산 총 중량을 기준으로 35 내지 60 중량%의 도코사헥사엔산을 생산하는 것인, 스키조키트리움 속 미세조류.
- 제3항에 있어서, 상기 미세조류는 지방산 총 중량을 기준으로 0.1 내지 2 중량%의 에이코사펜타엔산을 생산하는 것인, 스키조키트리움 속 미세조류.
- 제1항의 스키조키트리움 속 미세조류, 상기 미세조류의 배양물, 상기 배양물의 건조물, 또는 상기 건조물의 파쇄물을 포함하는, 스키조키트리움 속 미세조류 유래 바이오매스.
- 제6항의 스키조키트리움 속 미세조류 유래 바이오매스, 상기 바이오매스의 농축물 또는 건조물, 또는 상기 바이오매스의 추출물을 포함하는 조성물.
- 제6항에 있어서, 상기 조성물은 사료 조성물 또는 식품 조성물인 것인, 조성물.
- 제1항의 스키조키트리움 속 CD01-2147 미세조류를 배양하는 단계; 및 상기 미세조류, 이의 건조물, 또는 이의 파쇄물로부터 도코사헥사엔산 함유 바이오매스를 회수하는 단계를 포함하는, 스키조키트리움 속 미세조류 유래 바이오매스 제조방법.
- 제9항에 있어서, 상기 배양은 종속영양 조건 하에서 수행되는 것인, 스키조키트리움 속 미세조류 유래 바이오매스 제조방법.
- 제9항에 있어서, 상기 배양은 탄소원 및 질소원을 포함하는 배지를 사용하여 수행하는 것인, 바이오매스 제조방법.
- 제11항에 있어서, 상기 탄소원은 글루코오스, 프럭토오스, 말토오스, 갈락토오스, 만노오스, 수크로오스, 아라비노오스, 자일로오스 및 글리세롤로 이루어진 군으로부터 선택되는 1종 이상인 것인, 바이오매스 제조방법.
- 제11항에 있어서, 상기 질소원은 i) 효모 추출물(yeast extract), 우육 추출물(beef extract), 펩톤 및 트립톤으로 이루어진 군으로부터 선택되는 어느 하나 이상의 유기질소원, 또는 ii) 암모늄 아세테이트, 암모늄 나이트레이트, 암모늄 클로라이드, 암모늄 설페이트, 소듐 나이트레이트, 우레아 및 MSG(Monosodium glutamate)로 이루어진 군으로부터 선택되는 어느 하나 이상의 무기질소원인 것인, 스키조키트리움 속 미세조류 유래 바이오매스 제조방법.
- 제1항의 스키조키트리움 속 CD01-2147 미세조류를 배양하는 단계; 및 상기 미세조류, 이의 건조물, 또는 이의 파쇄물로부터 도코사헥사엔산 함유 바이오매스를 회수하는 단계를 포함하는, 스키조키트리움 속 미세조류 유래 바이오오일 제조방법.
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CA3237666A CA3237666A1 (en) | 2021-11-08 | 2022-08-10 | Novel schizochytrium sp. strain easy to extract oil in cell and method for producing oil containing omega-3 using thereof |
MX2024005588A MX2024005588A (es) | 2021-11-08 | 2022-08-10 | Nueva cepa schizochytrium sp. facil de extraer aceite de una celula y metodo para producir aceite que contiene omega-3 utilizando la misma. |
EP22890135.1A EP4431593A1 (en) | 2021-11-08 | 2022-08-10 | Novel strain of schizochytrium sp. with easy intracellular oil extraction and a method for producing oil containing omega-3 using same |
CN202280074487.0A CN118318031A (zh) | 2021-11-08 | 2022-08-10 | 易于提取细胞中的油的新型裂殖壶菌属品系及使用其生产含ω-3的油的方法 |
AU2022382507A AU2022382507A1 (en) | 2021-11-08 | 2022-08-10 | Novel strain of schizochytrium sp. with easy intracellular oil extraction and a method for producing oil containing omega-3 using same |
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AR (1) | AR127746A1 (ko) |
AU (1) | AU2022382507A1 (ko) |
CA (1) | CA3237666A1 (ko) |
MX (1) | MX2024005588A (ko) |
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- 2021-11-08 KR KR1020210152560A patent/KR20230066972A/ko not_active Application Discontinuation
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- 2022-08-10 CA CA3237666A patent/CA3237666A1/en active Pending
- 2022-08-10 MX MX2024005588A patent/MX2024005588A/es unknown
- 2022-08-10 EP EP22890135.1A patent/EP4431593A1/en active Pending
- 2022-08-10 AU AU2022382507A patent/AU2022382507A1/en active Pending
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AR127746A1 (es) | 2024-02-28 |
TWI842054B (zh) | 2024-05-11 |
EP4431593A1 (en) | 2024-09-18 |
CN118318031A (zh) | 2024-07-09 |
CA3237666A1 (en) | 2023-05-11 |
MX2024005588A (es) | 2024-05-23 |
TW202319534A (zh) | 2023-05-16 |
AU2022382507A1 (en) | 2024-05-02 |
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