WO1996033263A1 - Nouveaux micro-organismes capables de produire des acides gras hautement insatures et procede de production d'acides gras hautement insatures utilisant ces micro-organismes - Google Patents
Nouveaux micro-organismes capables de produire des acides gras hautement insatures et procede de production d'acides gras hautement insatures utilisant ces micro-organismes Download PDFInfo
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- WO1996033263A1 WO1996033263A1 PCT/JP1996/001049 JP9601049W WO9633263A1 WO 1996033263 A1 WO1996033263 A1 WO 1996033263A1 JP 9601049 W JP9601049 W JP 9601049W WO 9633263 A1 WO9633263 A1 WO 9633263A1
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- C12P7/00—Preparation of oxygen-containing organic compounds
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- C12P7/6409—Fatty acids
- C12P7/6427—Polyunsaturated fatty acids [PUFA], i.e. having two or more double bonds in their backbone
- C12P7/6434—Docosahexenoic acids [DHA]
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- 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
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- 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
- A23K50/70—Feeding-stuffs specially adapted for particular animals for birds
- A23K50/75—Feeding-stuffs specially adapted for particular animals for birds for poultry
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- 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
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L15/00—Egg products; Preparation or treatment thereof
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/115—Fatty acids or derivatives thereof; Fats or oils
- A23L33/12—Fatty acids or derivatives thereof
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- 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
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
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- 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
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- 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
- C12P7/64—Fats; Fatty oils; Ester-type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
- C12P7/6409—Fatty acids
- C12P7/6427—Polyunsaturated fatty acids [PUFA], i.e. having two or more double bonds in their backbone
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- 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
- C12P7/64—Fats; Fatty oils; Ester-type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
- C12P7/6436—Fatty acid esters
- C12P7/6445—Glycerides
- C12P7/6472—Glycerides containing polyunsaturated fatty acid [PUFA] residues, i.e. having two or more double bonds in their backbone
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/8215—Microorganisms
- Y10S435/911—Microorganisms using fungi
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/8215—Microorganisms
- Y10S435/946—Microorganisms using algae
Definitions
- the present invention relates to a Schizochytrium SR21 strain capable of producing an oil or fat containing (n-3) docosahexanoic acid and (n-6) docosapentaenoic acid, and belongs to the same species as the SR21 strain.
- n-3 docosahexaenoic acid and / or (n-6) docosapentaenoic acid
- the present invention relates to fats and oils produced by the microorganisms, various feeds and foods to which the fats and oils are added, and methods of using the fats and oils as additives for various feeds and foods.
- highly unsaturated fatty acids such as docosahexaenoic acid (DHA) and docosapentaenoic acid (DPA) are considered to have various physiological activities. It is known that these highly unsaturated]! Fatty acids can be divided into (n-3) and (n-6) systems depending on the difference in the position fi of the unsaturated bond. In the body, highly unsaturated fatty acids (n-3) and (n-6) are in different metabolic pathways), and animals require both as essential fatty acids.
- DHA docosahexaenoic acid
- DPA docosapentaenoic acid
- (n-3) polyunsaturated fatty acids include, for example, eicosapentaenoic acid [20: 5 (n-3)] and docosahexaenoic acid [22: 6 (n-3)].
- eicosapentaenoic acid 20: 5 (n-3)
- docosahexaenoic acid 22: 6 (n-3)].
- physiological activities such as anti-inflammatory activity and antithrombotic activity. It is attracting attention as a material for functional foods and pharmaceuticals.
- (n-6) polyunsaturated fatty acids include, for example, 7-linolenic acid [18: 3 (n-6)], dihomo-7-linolenic acid [20: 3 (n-6)] > Includes arachidonic acid [20: 4 (n-6)], which is attracting attention as an intermediate metabolite to one or two groups of eicosanoids such as brostaglandins and leukotrienes called local hormones .
- the final metabolites of the (n-3) system are docosahexaenoic acid, and the [ ⁇ -6] system is arachidonic acid, depending on the composition.
- the fatty acid composition of phospholipids in human erythrocytes is (n-3): eicosaventaenoic acid 0.70%, docosapentaenoic acid 2.09%, and docosahexaenoic acid 4.37%
- (n-6) ) System is 12.67% of linoleic acid, 0.62% of dihomo- ⁇ -linolenic acid, 16.93% of arachidonic acid and 0.86% of docosapentaenoic acid [Hardy et al., Biochen, J., vol.274.pl33 (1991)], ( The amount of docosapentaenoic acid in the n-6) system is extremely low.
- This (n-3) type DHA is contained in fish oil (which is contained in breeding fish), and in particular, around 20% is contained in blue tuna-derived oil.
- raw materials containing high concentrations of DHA, such as tuna ophthalmic fat have been discovered, and technologies for refining S-degrees of fatty acids have been developed. It is being advanced.
- DHA's physiological activities include cholesterol-lowering, anticoagulant, anti-coagulant, and memory-learning abilities linked to the brain metabolic system, prevention of senile dementia, treatment of Alheimer's disease, The essential fatty acids for the growth of fry have been clarified, and they are used as health food and baby milk.
- DPA docosapentaenoic acid
- the fatty acid composition of the optic choroid plexus of the third generation of rats fed a diet containing safflower oil which is extremely abundant in the (n-6) system, is a decrease in the DHA of the (n-3) system to 1 Z3.
- the (n-6) -system DP A quadrupled [Honayoun et al., J. Neurochen., Vol.51. P.45 C1988)] 0
- the sensitivity of vitamin A deficiency rats (N-6) system DPA composition jumps from 0.9% of normal value to 10.5% in microsomes [Hamm et al., Biochei. J .. vol.245.
- ( ⁇ -6) -based DPA include the use of a tranquilizer as a base to facilitate transport to the brain (Japanese Patent Publication No. 61-204 136), and ( Diseases in which the unsaturated fatty acids of charcoal purple number 22 of the n-6) series are lower than normal, such as infections by viruses, especially wort virus: leukemia, milk and other species.
- Pre-menopausal syndrome and benign chest diseases 3 ⁇ 4 blood pressure, hyperlipidemia and obesity, dry eye syndrome; scleroderma, rheumatoid arthritis, Crohn's disease, hampered adenitis and other forms
- Autoimmune and inflammatory diseases Infertility: Diabetes: and schizophrenia and psychotic diseases including alcoholism (including the effects of both moderate and abstinence).
- docosatetraenoic acid JP-A-60-38324.
- the content of (n-6) DPA in fish oil is as small as about 1% And contains many highly unsaturated fatty acids with similar structures such as arachidonic acid, eicosapentaenoic acid, and docosahexaenoic acid, and the (n-3) -based DPA is several times higher than the (n-6) -based DPA Because of its content, efficient separation and S reduction are difficult, such as the necessity of multiple stages of chromatographic treatment.
- fish oil has notable physiological functions (n-3> type DHA and (n-6) type DPA, but (n-3) type DHA and (n-6) type.
- Oil containing a large amount of DP A is not yet known, and in the case of fish oil, it is difficult to become a stable supply source due to the migratory properties of fish, etc., and it also has disadvantages such as the peculiar smell of fish oil
- Fish oils also contain highly unsaturated fatty acids such as arachidonic acid (AA) and eicosapentaenoic acid (EPA), making it easy to oxidize and difficult to obtain stable quality oils and fats.
- AA arachidonic acid
- EPA eicosapentaenoic acid
- n-3) -based DHA or (n-6) -based DPA high-purity (n-3) -based DHA or (n-6) -based DPA, especially when it is added to infant milk. It is desirable that the content of acid is low, but when the supply source is fish oil, only eicosapentaenoic acid can be used efficiently. It is extremely difficult that support.
- N-3) Docosahexaenoic acid-producing organisms include the bacteria Vibrio oarinus (AT)
- Cyclotella cryptica (Crypthecodinium cohniiX special table 5-503425), Thraustochytriurium flagellate fungus (Thraustochytri urn aureum) (ATC C 34304) [Kendrick, Lipids, vol.27, pl5 (1992)] ⁇ Japonochytrium '(Japonochytriuni sp.) (AT CC 28207) (JP-A-1-199588) and the like are known. However, according to the method using these microorganisms, the amount of docosahexaenoic acid produced per liter (liter) of the culture medium remains at an extremely low level of several tens to 50 mg.
- some microalgae produce docosapentaenoic acid-containing lipids, all of which are (n-3) -based docosapentaenoic acids.
- Thraustochytrium alloys ATC C 34 304
- javonokitorium esb AT CC 28207
- docosapentaenoic acid is also (n-3) -based That is, it is not known that (n-6) docosaventaenoic acid is present at a sufficient ft in fats and oils produced by these microorganisms.
- the present inventors have found that the content of the above (n-3) docosahexaenoic acid (DHA) and Z or (n-6) docosapentaenoic acid (DPA) is high and that eicosapentaene Microorganisms that produce high levels of fats and oils with low acid (EPA) content have been widely sought from marine microorganisms.
- DHA docosahexaenoic acid
- DPA docosapentaenoic acid
- the present invention relates to a Schizochytrium strain SR21 having an ability to produce an oil or fat containing (n-3) docosahexaenoic acid (DHA) and (n-6) docosapentaenoic acid (DPA), It provides a microorganism belonging to the same species as the SR21 strain or having substantially the same mycological properties.
- DHA docosahexaenoic acid
- DPA docosapentaenoic acid
- the present invention provides a method for producing an oil or fat containing (n-3) DHA and (n-6) DPA, which comprises culturing the microorganism and collecting the oil or fat from the culture. Provide a way.
- the present invention further comprises a step of isolating (n-3) DHA or (n-6) DPA from the fat or oil, wherein the (n-3) DHA or ( II-6) To provide a method for producing system DPA.
- Kamikaki oils and fats are useful as a source of (n-3) DHA and / or (n-6) DPA for various feeds and foods. .
- FIG. 1 is an optical microscopic Si photograph showing the morphology of zoospores of Schizochytrium JSSR 21 strain.
- FIG. 2 is a transmission S electron micrograph showing the flagella structure of zoospores of Schizochytrium II SR 21 strain.
- FIG. 3 is an optical micrograph showing a network of vegetative cell clusters and cytoplasm of the Schizochytrium JRSR21 strain.
- Figure 4 shows the ( ⁇ -6) docosapentae derived from Schizochytrium SR21. 4 is a chart showing the results of measuring the GC / MS spectrum of the acid.
- FIG. 5 is a chart showing the results of separation of triglycerides in neutral fats and oils derived from Schizochytrium JSSR21 strain by liquid chromatography.
- Figure 6 shows the triglyceride (molecular species 1) derived from Schizochytrium) SSR21 strain.
- oil and fat used in the present specification have the same meaning.
- the marine microorganism SR21 strain of the present invention was isolated from seawater along the coast of Yap Island, Federated States of Micronesia. This strain was initially thought to be a microorganism of Thraustochytriua II. However, a close examination of its bacteriological properties revealed that this strain was a microorganism that was recognized as a new species of Schizochy triuol R. The bacteriological properties of this Schizochytrium SR21 strain were as follows. It is as follows.
- the mycological properties of the SR21 strain were determined by culturing it in a nutrient medium and seawater.
- a nutrient medium containing 2 g of glucose, 0.2 g of yeast extract, and 0.5 g of sodium glutamate added to 1 L of artificial seawater (tropic marine) is placed in a small dish, and a drop of the pre-flask culture of SR 21 strain in the same medium is inoculated. Then, the cell morphology was monitored by inverted microscope. In this case, release of amoeboid amorphous cells was observed.
- Glutaraldehyde was added at 10% by volume to the sample where zoospores were frequently released, and the zoospores were observed with an optical microscope.
- FIG. 1 is an optical micrograph showing the morphology of zoospores of the SR21 strain, showing two flagella with different lengths.
- FIG. 2 is a transmission type S micrograph showing the structure of the trichomes of the zoospores of the SR21 strain, and shows a three-part structure consisting of the base, the axis, and the apical hair of the mascotonema of the trichomes.
- FIG. 3 is an optical micrograph showing a network of the SR 21 strain vegetative cell mass and the prototype g.
- the colony formed by the SR21 strain on the agar plate has the same smooth ocher color as the yeast colony.
- this SR21 strain was cultured in a liquid medium, zoospores having two flagella with different lengths were observed in the early stage (Fig. 1), and the zoospores of two pilus
- a hair-like structure has a three-part structure consisting of a base, a shaft, and a hair (Fig. 2). Based on these facts, SR21 strain is distributed in Kingdom Chromista. Phylum Heterokonta.
- the SR21 strain Jl enters the Labyrinthulida ass Labyrinthulea (Order Labyrinthulida). And, because the vegetative cells are spherical or ridge-shaped and there is no gliding hunt in the protoplasmic network, It is clear that the R21 strain is associated with the family Thraustochytriidae.
- the vegetative cells of the SR 21 strain repeat two divisions to form 8 to 32 Sakae tie cells. After that, amoeba-shaped amorphous cells are released from some cells, gradually become crowded from the cell mass, and become spherical cells after 1-2 hours. These spherical cells then differentiate as zoospores into 8 to 16 zoospores. At this time, no zoospore S film was observed. Furthermore, there are also cells that differentiate directly from vegetative cells to zoospores S without dividing into two, or differentiate into zoospores without passing through amorphous cells after dividing into two vegetative cell clusters. Yes, has a complex life style.
- the throat kittle consists of 7) R30 species. Then, Corallochytrium [Raghukumar, S.
- the characteristics of these eight species of Thraustochytridium are as follows.
- the vegetative cells of Labyrinthuk> ides g are globular, but glide irregularly on the protoplasmic network.
- Aplanochytriun JS is propagated by immobilized spores, ie, spores without flagella.
- Althornia) S does not form a protoplasmic network and is planktonic.
- Japonochytriun3 ⁇ 4 produces extracellular vesicles S (apophysis). ⁇ Ulkenia JS differentiates into zoospores after the release of ameba-like amorphous cells from zoospores S.
- Thraustochytriun JS In Thraustochytriun JS, one zoospore turns into one elite cell, which transforms one zoospore S. Form. Schizochytrium II undergoes two divisions after one zoospore has settled, forming a plurality of vegetative cell masses, each of which becomes a zoospore S. Corallochytriun forms slime-like spores and does not form flagellar zoospores.
- SR21 forms amoeba-shaped amorphous cells, it is considered that IS will be present in Ulkenia when its shape K is marked.
- Ragkouma is the Thraustochytrium of Thraustochytrium 'Striatum (Thraustoc hytrium striatum) has been reported to form amoebic amorphous cells that prey on bacteria in nutrient media [Baghukumar, S., Marine Biology, 113: 165 (1992)].
- Schizochytrium niangrovei a new species of Schizochytrium ⁇ , formed amoebic amorphous cells in a nutrient medium, or sparsely added pine pollen to seawater. It was shown that when cultured in a medium, amoebic amorphous cells were not formed [Baghukumar. S., Trans. Br. Mycol. Soc., 80: 627 (1988)].
- Thraustochytrium 'Striatum and Schizochytrium' mangrove eyes form amoeba-shaped amorphous cells in nutrient medium as described above, but do not form amoeba-shaped amorphous cells in seawater / pine pollen medium. Not classified as genus Ulkenia. Based on the above, SR21 strain formed amoebic amorphous cells in the nutrient medium, but this was not observed in the seawater-only medium, so it would not be appropriate to classify it into Ulkenia II. .
- the vegetative cells form clumps of many cells that adhere to each other through successive divisions, and three to four or more of the cell roses are zoospores. It separates into S.
- one zoospore S forms 16 to 64 zoospores, and no zoospore release is observed from 2Li cells [Goldste in .S. And Belsky.M .. Am. J. Bot .. 51: 72 (1964), Booth. T. and Mi 11 er. CB. Can. J. Bot .. 47: 2051 (1969)] 0
- Schizochytrium minutum (Schizochytriun minutun), like Schizochytridium aggregatam, divides vegetative cells, forms 4 to 8 or hundreds of cell clusters, and produces two zoospores from each zoospore S. discharge.
- the zoospores are bean-shaped and the length of the two flagella is about 8.5 and 3.0 / £ B [Gaertner. Verof f. Inst. Meerestorsch. Bremer .. 19:61 (1981) ⁇ .
- Schizochytrium octosporum differs from Schizochytrium 'minutum in that eight zoospores are released from one zoospore S [Raghukumar.S., Trans. Br. Mycol. Soc., 90: 2
- Table 1 Search table for four species of Schizochytrium (according to Ragkumar).
- Diameter of zoospore S is 15-2
- Offspring S form 16 to 64 zoospores S. agsregatuiD
- the diameter of the zoospore S is 14 m or less.
- the zoospore S forms eight zoospores. S. octosporuin 3.
- the zoospore S forms two zoospores. S. minutuiD
- Table 1 The search table shown in Table 1 and the source of four known species And the mycological properties of the SR21 strain.
- the Schizochytrium JR SR 21 strain is different from Schizochytrium 'mangrove eye' in which divided vegetative cells become individual zoospores without taking the form of zoospore S.
- the diameter of the zoospores S is 14 m or less and two zoospores are formed from each zoospore S, if eight zoospores are also formed in Schizochytrium minutum, However, the forces attributed to Schizochytrium 'octosbolum, respectively, are different from the SR 21 strains, as they differentiate into 8 to 16 zoospores.
- Schizochytrium when the diameter of the zoospores 15 is 15 to 2 and 16 to 64 zoospores are formed from the zoospores S (however, the original report has many expressions), Schizochytrium ⁇ Although it is considered to be agregatam, the SR21 strain is different from this because no amoeboid amorphous cells have been observed in this species. In addition, in the SR21 strain, there are vegetative cells that do not divide and cells that differentiate into zoospores without passing through amorphous cells. From the above, it was confirmed that SR21 strain did not correspond to the existing four species of Schizochytrium and was a new species of Schizochytrium.
- This Schizochytrium JSSR 21 strain was deposited with the Research Institute of Biotechnology, Industrial Science and Technology under the name "Marine Bacteria SR21 Strain” on March 6, 1995, and received the accession number FERM BP-5034. are doing. In addition, it was deposited with the Fermentation Research Institute of Japan on March 17, 1995, and obtained the accession number IFO32693.
- the post-organism used in the method for producing the fats and oils containing DHA and DPA of the present invention is not limited to KFERM BP-5034 or IFO 32693, but may be the SR21 strain in view of the mycological properties of the aforementioned Schizochytrium ISSR21 strain. Any strain can be used as long as it is a strain that is identified as having the same species or having substantially the same bacteriological properties.
- microorganism used herein includes a wild-type strain, a mutant strain, and a recombinant microorganism.
- One of the features of the present invention is the recognition of the ability to produce fats and oils having special lipid characteristics of microorganisms, and the accompanying stable and reliable economical provision of fats and oils having such high functions and high added ffi values. This is a solution to the problem of maintaining resources.
- mutants or recombinant microorganisms have the (n-3) docosahexaenoic acid and Z in oils and fats compared to i produced by the original wild-type strain when cultured on the same substrate. Or, those designed with the intention of increasing the amount of (n-6) -based docosapentaenoic acid, or increasing the total fats and oils, or both.
- a microorganism capable of producing an oil or fat containing the ( ⁇ -3) docosahexanoic acid and the (n-6) docosapentaenoic acid of the present invention can be selected, for example, according to the following screening method. It can. That is, the collected port water is filtered and collected using a sterile filter of 0.4, and the filter is stuck on an agar medium consisting of 90% natural seawater, glucose, yeast extract, and peptone, and cultured at 20 to 30. The colonies formed on the filter of the agar plate medium are cultivated on an agar medium having the same composition as above, and the obtained cells are collected with a spatula, and fatty acids are directly methyl-esterified from the cells according to a conventional method.
- composition is analyzed by gas chromatography, and strains producing (n-3) docosahexaenoic acid and (n-6) docosapentaenoic acid are selected.
- oils and fats accumulate in the cells at an amount of 10% by weight or more, preferably 20% by weight or more per dry cell, and / or less than 1% by weight of eicosapentaenoic acid in total fatty acids, preferably 0.5% by weight.
- Strain that is less than wt% can be selected.
- the Schizochytrium IRSR21 strain of the present invention can deposit 20% by weight or more of fats and oils per dried cell. In addition, 25-45% of (n-3) type osahexaenoic acid per total fatty acid in fats and oils and (n-6) type of docosapen It contains 6-11% by weight of taenoic acid, and the content of eicosapentaenoic acid is less than 1% by weight.
- the fat or oil of the present invention contains 98% S% or more ( ⁇ -3) docosahexaenoic acid in the (n-3) fatty acid.
- strains belonging to the same species or having substantially the same bacteriological properties as the Schizochytrium SR21 strain within the scope of the present invention preferably accumulate 10% by weight or more of fats and oils per dry cell. More preferably, 20% by weight or more, and most preferably, 30% by weight or more of i%.
- the amount of (n-3) docosahexaenoic acid is preferably 15% by weight or more, more preferably 20% by weight or more, and most preferably 35% by weight or more of the total fatty acids in the fat or oil. .
- the amount of the (n-6) docosapentaenoic acid is preferably 4% by weight or more, more preferably 5% by weight or more, and most preferably 6 to 11% by weight, based on the total fatty acids in the fat or oil. .
- the content of eicosaventaenoic acid in the fat or oil is preferably less than 2% by weight, more preferably less than 1% by weight, and * also preferably less than 0.5% by weight.
- the fat or oil of the present invention contains (n-3) docosahexaenoic acid in an (n-3) fatty acid in an amount of 90% by weight or more, preferably 95% by weight or more.
- oils and fats of the present invention can be obtained by inoculating the above-mentioned living organisms into a suitable medium produced using natural seawater or artificial seawater, and culturing them in a conventional manner.
- Carbon sources added to the culture medium include carbohydrates such as glucose, fructose, kindulose, sucrose, maltose, and soluble starch, oils and fats such as oleic acid and soybean oil, molasses, glycerol, mannitol, and the like. Examples include sodium acetate, but are not limited thereto. These carbon sources can be used, for example, at a concentration of 20 to 12 Og per liter of medium.
- Murosushi examples include natural nitrogen sources such as peptone, yeast extract, malt extract, meat extract, casamino acid, corn steep liquor, organic nitrogen sources such as sodium glutamate and urea, and ammonium acetate and ammonium sulfate.
- natural nitrogen sources such as peptone, yeast extract, malt extract, meat extract, casamino acid, corn steep liquor
- organic nitrogen sources such as sodium glutamate and urea
- ammonium acetate and ammonium sulfate examples include inorganic nitrogen sources such as ammonium, ammonium chloride, ammonium nitrate, and sodium sulfate, but are not limited thereto.
- inorganic salts such as phosphates such as potassium phosphate and dihydrogen phosphate, ammonium sulfate, sodium sulfate, magnesium sulfate, sulfuric acid, sulfate network, magnesium chloride, calcium chloride, etc.
- Vitamins can also be used as a source of nutrients. These medium components are not particularly limited as long as they do not impair the growth of microorganisms.
- the cultivation of the bacterium is carried out at 10 to 35, preferably at 17 to 30 ° C., usually 3 to 7;
- (n-3) docosahexanoic acid and Z or (n-6) docosapentaenoic acid in order to promote the production of (n-3) docosahexanoic acid and Z or (n-6) docosapentaenoic acid, (n-3) docosahexanoic acid and / or (n-6)
- the pre-IE form of the system docosapentaenoic acid can be added to the medium.
- the precursor examples include hydrocarbons such as tetradecane, hexadecane, and octadecane; fatty acids such as tetradecanoic acid, hexadecanoic acid, octadecanoic acid, and oleic acid; or fatty acids thereof (for example, sodium clay or lithium salt); fatty acids Fats and oils containing esters or fatty acids as constituents (eg, olive oil, soybean oil, real oil, coconut oil), etc. It is not limited to these.
- the conditions for producing the oil and fat of the present invention in a commercially viable yield include the following conditions.
- the SR21 strain and strains having the same species or having substantially the same bacteriological properties were found to be in natural seawater or artificial seawater.
- the medium grew well at a pH of 3.5 to 6.0, preferably pH 4.0 to 4.5 in a medium containing one-half concentration of natural seawater or artificial seawater.
- the carbon source and nitrogen source to be added to the medium may be those commonly used as described above.
- the nitrogen source may be either organic nitrogen or inorganic nitrogen, and if the nitrogen concentration is kept constant, it will affect the growth rate of bacterial cells and the accumulation of fats, including J6, DHA, and DPA.
- the ratio between organic nitrogen * and inorganic nitrogen can be changed without the need. When these are added at the concentration used for ordinary microorganism culture, good growth can be obtained. Good growth can be achieved by using phosphate at the level of normal microbial culture.
- the cultivation under the above conditions can be carried out by using a conventional fermentation plant. Further, a bubble tower type tie apparatus can also be used. Normal conditions for aeration and agitation culture Can be used. In aeration and agitation culture, when the number of rotations was increased and the amount of dissolved acid was increased, a remarkable increase in growth rate and bacterial cell yield was observed as compared with flask culture.
- the cells accumulating the (n-3) docosahexaenoic acid and the (n-6) docosapentaene K-containing oil vesicles in the culture are added in an amount of 1 Og or more per liter of medium, preferably It can be produced at a high concentration of 2 Og or more, more preferably 4 Og or more.
- the fats and oils are satisfactorily collected in the cells from the middle stage of the culture, and can be 30% by weight or more, preferably 50% by weight, more preferably 60% by weight or more per dry cell.
- a conventionally used method such as a centrifugal separation method or a conventional method can be used.
- the collected cells are crushed by, for example, dyno mill or ultrasonic wave, and then subjected to solvent extraction with chloroform, hexane, methanol, ethanol, etc. to obtain (n-3) docosahexanoic acid and (N-6) -based docosapentaenoic acid-containing fats and oils can be obtained.
- the amount of the fat containing the (n-3) docosahexaenoic acid and the (n-6) docosapentaenoic acid is preferably about 0.3 g or more, more preferably 0.6 g or more per lg of the dried cells.
- the present invention relates to fats and oils obtained from the Schizochytrium JKSR21 strain or strains belonging to the same species or having substantially the same bacteriological properties as described above. Usually, it is as follows.
- the proportion of neutral lipids is very high, accounting for more than 90% by weight of total fat K.
- the fatty acid composition in the neutral fat K is: palmitic acid 45-55% by weight, (n-3) docosahexaenoic acid 30-40% by weight, (n-6) docosapentaenoic acid 5-10% by weight, (n-3) eicosapentaenoic acid 0-1% i%, arachidonic acid 0-0.6% by weight, and other fatty acids 10-20% by weight.
- the ratio of DPA to DHA is 3 to 6 parts by weight of DHA per 1 part of DPA.
- the obtained neutral lipid contains about 85% by weight or more, preferably 90% by weight or more of triglyceride, and contains little diglyceride and monoglyceride. It also contains free sterols and sterol esters at 2-3%.
- the molecular species of triglycerides in fats and oils having the above fatty acid composition are mainly 14: 0—16: 0—16: 0, 16: 0-16: 0—16: 0, and 14: 0—16: 0—22: 6, 16: 0—16: 0—22: 5, 16: 0—1 6: 0—22: 6, 16: 0—22: 5—22: 6, 16: 0—22: 6 — 22: 6 (the binding position of the fatty acid residue is not limited).
- 14 represents the number of carbon atoms in the fatty acid
- 0 represents the number of 2S bonds that the fatty acid waits for.
- "16: 0" represents 16 carbon atoms in the fatty acid. Represents fatty acids without heavy bonds.
- the triglycerides include those in which (n-3) -type DHA is bound only to position 2 of glycerin, or (n-3) -type DHA binds to positions 1 and 2 or 1 of glycerin. And those linked to position 3.
- polar lipids are phosphatidylcholine, and also include phosphatidylethanolamine, phosphatidylinositol, and the like.
- the fats and oils of the present invention can be used as a source of (n-3) -based DHA and / or (n-6) -based DPA in SJ products such as various feeds or foods.
- fats and oils collected from cultured cells or (n-3) type DHA and / or (n-6) type DPA obtained by purifying the same may be used.
- a culture solution in the process of producing the fat or oil using a cell culture tie or a sterilized culture solution, a culture solution at the end of the culture or a sterilized culture solution, or a culture bacterium collected from each of them A body or a dried product thereof, or a supernatant obtained after collecting the fat or oil from a culture solution or cells can also be used.
- the present invention relates to an animal feed prepared by mixing the oil and fat of the present invention.
- animal feed of the present invention include dog food such as cat food, feed for poultry such as fish, feed for livestock such as pigs and cattle, and feed for fish farming.
- dog food such as cat food
- poultry such as fish
- livestock such as pigs and cattle
- feed for fish farming can be (N-3)
- the cells or cultured cells of the microorganism of the present invention that produced and stored oils and fats containing the DHA- and ( ⁇ -6) -based DPA must have the oils and fats protected in the cells. Oxidation is prevented by this, and it is also preferable because it is stable to heat sterilization.
- the present invention also relates to an extraction residue after extracting fats and oils containing ( ⁇ -3) -based DHA and (n-6) -based DPA from the microorganism cells.
- Animal feed This extraction residue is preferable because it contains proteins, ash, and carbohydrates in addition to (n-3) DHA and (n-6) DPA.
- the present invention relates to a feed for a rescue feed organism, comprising a cultured bacterial cell or a culture solution which has produced and accumulated the oil and fat of the present invention.
- a rescue feed organism comprising a cultured bacterial cell or a culture solution which has produced and accumulated the oil and fat of the present invention.
- the production of seeds uses microprey organisms (animal blank tons, such as water beetles and brine shrimps).
- the feed given to small prey organisms is determined in view of the S-requirement of the larvae that later ingest them as feed.
- the microbial organisms By feeding the microbial organisms with the culture cells or culture solution containing the oil and fat of the present invention, the nutrient requirements of the larvae containing (n-3) DHA and (n-6) DPA can be satisfied. A fine prey organism can be obtained.
- the present invention further includes a feed for horns and shellfish containing the above-mentioned microprey organism.
- the present invention provides the use of the oil or fat of the present invention for production of poultry eggs enriched with (n-3) DHA and / or (n-6) DPA, and (n-3) DHA and Or (n-6) based DPA for the production of enriched egg yolk oil.
- Poultry eggs enriched with (n-3) -type DHA and / or (n-6) -type DPA of the present invention are produced by feeding the above-mentioned animal feed to egg-collecting poultry, particularly 3 ⁇ 4, and rearing them. You. Further, by extracting fats and oils from such poultry eggs, particularly egg yolks, according to a conventional method, the yolk oil enriched with (n-3) type DHA and / or (n-6) type DPA of the present invention can be obtained.
- Can be The present invention also includes the addition of the yolk oil to infant milk, premature infant IS milk, infant food, and maternity brick food.
- the present invention relates to a milk product for infants and a S® product for premature infants, which contain the oil or fat of the present invention.
- Milk, food for infants, and foods for pregnant women In particular, attempts have been made for a long time to make the ingredients of human milk powder as close as possible to human milk as much as possible, and for each of the major components of milk, such as protein, fat, and sugar, It is an important issue to be similar to.
- fats the problem is that polyunsaturated fatty acids originally contained in breast milk are lacking in conventional infant formula.
- RJJPENJ [Vol. 13. No. 9. pp. 765-772 (1991)] shows that the degree of unsaturated fatty acids in human, European and affirmed breast milk is low. The fatty acid composition is described.
- a fat and oil for adding milk to infants which is a combination of a cell cooking oil containing DHA and a cell cooking oil containing arachidonic acid, which are low in EPA.
- a cell cooking oil containing DHA and a cell cooking oil containing arachidonic acid, which are low in EPA.
- it is completely impossible to use fats and oils containing (n-3) DHA and (n-6) DPA which are originally contained in breast milk. was not known.
- the oil and fat derived from the Schizochytrium SR21 strain of the present invention or a strain belonging to the same species or having substantially the same bacteriological properties is expressed as n-3) Since it contains 3 to 6 parts by weight of DHA and almost no EPA, and more than 85% is triglyceride, it is necessary to produce infant formula similar to breast milk. Suitable for.
- the present invention relates to foods such as dietary supplements, geriatric foods, health foods and the like containing the oil and fat of the present invention.
- the food of the present invention is used for maintaining health, for the purpose of capturing (n-3) DHA and / or (n_6) DPA.
- the form may be either a solid or liquid food or a food product.
- oils and fats examples include natural foods such as meat, fish, and nuts, foods to which oils and fats are added during processing such as Chinese food, ramen, and soups, and heat carriers such as tempura, fried, fried, fried rice, donut, and sugar sugar.
- Examples of such foods include fats and oils mist-applied or applied at the time of finishing the processing of biscuits and anpans.
- the food of the present invention is not limited to foods containing fats and oils, such as bread, noodles, rice, confectionery (candies, chewing gum, gummy, tablet confections, Japanese confectionery), tofu and processed products thereof.
- Agricultural foods such as sake, medicinal liquor, mirin, vinegar, S oil, fermented foods such as Ajii, livestock foods such as yogurt, ham, bacon, sausage, etc., marine foods such as kamaboko, fried heaven, and starch, fruit juice Beverages, soft drinks, sports drinks, Alcoholic beverages, beverages such as tea and the like can also be mentioned.
- the food of the present invention can be processed and manufactured by a general manufacturing method by blending a predetermined i of the fats and oils of the present invention with food ingredients.
- the compounding amount varies depending on the dosage form and the morphological properties of the food, and is not particularly limited.
- the present invention relates to a functional food (including a food for specified health use) containing the oil or fat of the present invention.
- the functional food of the present invention aims to exert the physiologically active function of the (n-3) DHA and the (n-6) DPA, and restores the state of reduced function to a healthy state. It is a food to maintain, maintain, or prevent loss of function.
- the form may be in the form of a pharmaceutical preparation.For example, proteins (proteins such as milk protein, soy protein, egg albumin, etc., with a high amino acid balance and a high nutritional value as a protein source are widely used.
- egg white oligopeptides in addition to these decomposed products, egg white oligopeptides, soybean hydrolysates, etc., mixtures of amino acids alone are also used), saccharides, fats, trace elements, vitamins, emulsifiers, fragrances, etc. It can be processed into natural liquid foods, semi-condensed tie foods and nutritious foods, and drinks and enteral nutrients mixed with oils and fats. There may be.
- the functional foods and dietary supplements of the present invention use the fats and oils of the present invention to provide powders, granules, tablets, capsules, troches, liquids for internal use, conceivables, emulsions, syrups, drinks, It can be manufactured as a food or drink having a form such as a natural liquid diet, a semi-digestive nutritional diet, a component nutritional diet, or a nutritional supplement. At this time, a slipping or withering component or a functional component may be blended together with the fat or oil of the present invention.
- the fats and oils of the present invention are added to the food of the patient during the networking of hospital meals, and the prepared meal is prepared on the spot, and the ( ⁇ -3) DHA and Or it can be given to patients with reduced (n-6) DPA Monkey
- the present invention relates to the use of the oil or fat of the present invention for the production of a single drug. That is, the present invention is directed to the production of (n-3) -based DHA or (n-6) -based DPA or their conductors using the fats and oils of the present invention as a starting material.
- the (n-3) -based DHA or (n-6) -based DPA or a mixture thereof may be in free form or as a pharmaceutically acceptable salt, such as a sodium salt, a potassium salt, a lithium salt, or Other forms of metal salts, such as alkali metal salts, zinc clay, calcium salts, magnesium salts, monoglycerides, diglycerides, triglycerides, esters of lower alcohols, phospholipids, glycolipids, It may be in various forms such as amides.
- a pharmaceutically acceptable salt such as a sodium salt, a potassium salt, a lithium salt, or Other forms of metal salts, such as alkali metal salts, zinc clay, calcium salts, magnesium salts, monoglycerides, diglycerides, triglycerides, esters of lower alcohols, phospholipids, glycolipids, It may be in various forms such as amides.
- the lower alcohol refers to a monohydric alcohol having a nitrogen number of 6 or less, and examples thereof include methanol, ethanol, propanol, isopropanol, butanol, pentanol, and hexanol.
- the present invention relates to a cosmetic containing the fat or oil of the present invention.
- the cosmetic of the present invention can be prepared by blending the oil or fat of the present invention with various types of bases known as ordinary cosmetics in accordance with a conventional method.
- bases include, but are not particularly limited to, cosmetics such as emulsions, creams, lotions, packs, dispersions, and cleaning agents.
- Cosmetic bases include bases according to the form of the cosmetic, such as purified water, lower alcohols, polyhydric alcohols, oils and fats, surfactants, various cosmetic ingredients, ultraviolet absorbers, and thickeners. , Dyes, preservatives, fragrances and the like can be used.
- the present invention relates to a detergent containing the fat or oil of the present invention.
- the detergent of the present invention whether medicinal or non-medical, includes stones, shambhus, fuyucial creams, rinses, etc., which are generally used to keep the body clean, as well as bath salts. There are also utensils used in everyday households such as tableware Any detergent may be used.
- Example 1 Production of fats and oils by Schizochytrium JR SR 21 strain
- 1 L of artificial seawater (trobic marine) having a concentration of 50% was placed in a flask, and then the amount of carbon source (glucose) shown in Table 2 was added.
- Or glycerol) and a nitrogen source (corn steep liquor; hereinafter may be abbreviated as CSL) was added to prepare a medium.
- CSL nitrogen source
- oils and fats were directly extracted from the dried cells and fatty acid methyl esters were produced according to a conventional method. That is, the dried cells were placed in a screw-mouth test tube, 10% hydrochloric acid methanol and dichloromethane were added thereto, and the mixture was reacted by heating in a 60 temperature bath for 3 hours. Next, the fatty acid methyl ester component was extracted with hexane, the fatty acid composition of the fatty acid methyl ester component was determined by gas chromatography analysis, and the content ratio of docosahexaenoic acid (DHA) was determined.
- DHA docosahexaenoic acid
- the total fatty acids contained in the cells were determined from the fatty acid methyl esters detected by gas chromatography analysis. D and DHA-producing children were determined by detecting S and docosahexaenoic acid methyl ester *. Like this Then, the total fatty acid amount per 1 L of the medium, the fatty acid content ratio per dried cell, the DHA content ratio in the total fatty acids, and the DHA amount per 1 L of the medium were determined. Table 2 shows the results.
- DHA was determined by gas chromatograph mass spectrometry comparing with a standard substance.
- Example 2 Production of fats and oils by Schizochytrium II SR 21 strain (2)
- 1 L of 50% -concentrated artificial seawater 60 g of glucose as a carbon source, 4.0 g of monolithium phosphate, 1.0 g of yeast extract, and 1.0 g of organic nitrogen source
- a medium was prepared by adding 1.0 g of corn steep liquor and further adding ammonium nitrate in an amount shown in Table 3 as a nitrogen-free nitrogen source. This was inoculated with Schizochytrium «SR21 strain, and cultured at 25 ° C for 4 weeks with shaking.
- Medium (A) consisting of 60 g of glucose, 20 g of boliviton, 1 Og of yeast extract and 1 L of 50% concentrated artificial seawater, or 90 g of glucose, 10 g of boribeptone, 1 Og of corn steep liquor and 50% concentrated artificial seawater Using the medium (B) consisting of 1 L, culture was performed in a jar fermenter (culture tank capacity 5 L, medium i3 L). Culture is performed at a culture temperature of 25 and aeration of 0.5w. m, the stirring speed was 20 Orpm.
- Table 5 shows the results of analyzing the fatty acid composition of the DHA-containing fats and oils by gas chromatography. Table 5. Composition of Fatty Acids I (Weight) Experiment 14: 0 15: 0 16: 0 17: 0 18: 0 20: 4 20: 5 22: 5 22: 6
- Schizochytrium SR21 strain shows good growth even in the practical agitating culture, which is a practical culture method. It was shown to accumulate well.
- Production of DHA The ft is up to 7.2 g / L medium and the productivity is very good.
- DHA docosahexanoic acid
- DPA docosapentaenoic acid
- EPA eicosapentaenoic acid
- each (n-3) fatty acid such as docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) contained in the fats and oils obtained in Examples 1 to 3, and the total (n-3: Table 6 shows the ratio of DHA to the fatty acids.
- DHA-containing fats and oils obtained from Schizochytrium JR SR 21 strain have an EPA content of 1.0% by weight or less in fish oil, and a DHA content of 98% by weight or more based on all (n-3) 8S fatty acids. It is.
- Table 7 shows that DHA was produced by culturing using Thraustochytrium aureum (ATCC 34304) as a microorganism [P.Bajapai. PK Bajapai and O.Pjard. Appl. Microbiol. Biotechnol. 35 : 706 (1991), A. Kendric and C. Eatledge, Lipids 27: 15 (1992), and PK Bajapai, P. Bajapai and OPffard. J. Am. Oil Chem. Soc., 68: 509 (1991). ], When DHA was produced by cultivation using Javonokitorium sp.
- the SR21 strain has an extremely high DHA-producing ability. Furthermore, according to known microorganisms, fats and oils having an EP A content of a few weight% are obtained, whereas according to Schizodium strain JSSR21, fats and oils having an extremely low content of less than 0.5 wt% are obtained. You can see that it can be done. Cold example 5_ Production of fats and oils by Schizochytrium JRSR 21 strain (4)
- urea was added to remove saturated fatty acids according to a conventional method. That is, 20 g of urine and 20 Oml of methanol were added to about 9 g of the crude extracted fatty acid prepared by the method shown in Example 5, heated at 60 ° C. for 3 hours, and then gradually cooled to 10 °. After filtering out the precipitated urea crystals, the non-crystalline solution was concentrated in a concentrated box to obtain about 4 g of urine non-adduct.
- the fatty acid composition of this non-urinary cord adduct was docosapentaenoic acid 17.7%, docosahexaenoic acid 77.9%, and the mixing ratio of other fatty acids was 5% or less.
- fat K was converted to piconyl ester ⁇ conductor according to a conventional method, and analyzed by GCZ IS. That is, 1 OOjl of thionyl chloride was added to 20 / ig of the non-urea-added fatty acid obtained above, left at room temperature for 1 minute, and dried under a nitrogen stream. To this, 10% 3-pyridylcarbonyl 101 was added, left at room temperature for 1 minute, and analyzed by GC ZMS. As a result, as shown in Fig.
- the docosapentaenoic acid (22: 5) produced by the SR21 strain has an (n-6) unsaturated bond with an unsaturated bond at the position of ⁇ 4.7.10.1 3.16. It was identified as a fatty acid.
- Example 7 Fatty acid analysis of Schizochytrium «SR 21 strain
- Example 5 As the crude extracted oil and fat, the one obtained in Example 5 was used.
- the crude extracted oil and fat was subjected to liquid partitioning with hexane and 90% methanol according to a conventional method to separate the neutral lipid and polar finger substance.
- the obtained lipid amounts were 1.8 g of polar fat K and 32.9 g of neutral lipid, respectively. After hydrolyzing this lipid, it was converted to methyl ester, and the fatty acid composition was analyzed by gas chromatography.
- the neutral lipids and polar lipids obtained in Example 7 were analyzed by thin-layer chromatography according to a conventional method. The color was developed using sulfuric acid, and the resulting spots were identified by the Rf value with each standard lipid. More than 90% of neutral fats were triglycerides.
- the polar lipids were mostly phosphatidylcholine, followed by phosphatidylethanolamine and phosphatidylinositol.
- the tridaliceride (molecular species 16: 0—16: 0—22: 6) fractionated in Example 8 was dried, treated with a lipase specific to the 1.3 position, and the resulting 2-monoglyceride was trimethylsilylated. After that, fatty acid residues were determined by GCZMS.
- the lipase treatment was performed with 2 ml of 50 mM acetate buffer (pH 5.5), lipase 1000 units, 35, and 30 minutes.
- 2-monoglyceride was extracted with ether and trimethylsilylated 2-monoglyceride using a commercially available trimethylsilylating agent. As a result, as shown in FIG.
- ammonium sulfate was added at a concentration shown in Table 11 to a half-concentrated artificial seawater medium containing 60 g of glucose, 3 g of potassium dihydrogen phosphate, and 0.5 g of corn steep liquor, 3 L of this medium was placed in a 5 L-volume Jafermenter.
- 60 ml of a preculture solution prepared in the same manner as in Example 5 was added and cultured.
- the concentration of murine sources was set in a half-concentrated artificial seawater medium containing 6 Og of glucose, 3 g of potassium dihydrogen phosphate, and 0.5 g of corn steep liquor per liter of medium.
- corn steep liquor (CSL) was added as an organic chamber source, and ammonium sulfate was added in two different proportions as an inorganic source.
- 3 L of this medium was placed in a jar fermenter having a volume of 5 L, and 6 OJDI of a preculture solution prepared in the same manner as in Example 5 was added thereto, followed by culturing under the same conditions as in Example 5.
- Glucose, corn steep liquor, and ammonium sulfate were added at the concentrations shown in Table 13 to a half-concentrated artificial seawater medium to which 3 g of dihydrogen phosphate medium was added per 1 L of the medium. 3 L of this medium was placed in a 5 L-jar fermenter, and cultured under the culture conditions shown in Example 5. After the consumption of glucose, 1 O ODI of the culture solution was collected, and the cells were collected by centrifugation. The cells were washed, and dried cells were obtained using a freeze dryer. The weight of the dried cells was measured to determine the amount of cells per 1 L of medium, and then the amount of cells per 1 L of medium and total fat per 1 L of medium were determined in the same manner as in Example 5.
- the culture solution produced according to Example 12 was collected, the solution was removed with a filter breath and dried to obtain 1 Okg of cells containing 10% of water.
- the cells were extracted with hexane according to a conventional method to remove hexane, and 5.9 kg of an oil or fat was obtained. After the hexane extraction, the cells were dried to remove hexane, and 3.9 kg of oil-extraction residual cells were obtained.
- the fat contained 35% DHA and 8% DPA.
- the oil-extracted cells contained 1.2% DHA and 0.3% DPA.
- One group was a control group and 5 birds were bred on a normal diet for 25 days. The remaining group had 3 birds as a group.
- the normal feed was reduced by 50 g from the control group, and 50 g of the oil-extracted residual bacterial cells obtained in Example 14 was added to supplement the amount by 25 g. .
- the egg weight, egg yolk weight, DHA concentration, DPA concentration, egg yolk shine, and egg yolk taste of three 25th eggs were measured. Table 16 shows the results. By rearing the cells with residual oil extract cells, the DHA and DPA contents in the yolk clearly increased. In addition, the yolk was bright and melted.
- Table 16 Control group
- Example 7 The crude extracted oil and fat obtained in Example 7 was separated into neutral fat and polar lipid by liquid-liquid partitioning with hexane and 90% methanol according to a conventional method, and the (n-6) docosapentaene A neutral lipid containing an acid and DHA [( ⁇ -6) -based docosapentaenoic acid 7.9, containing 33.7% DHA] was obtained.
- this oil By mixing 0.6 g of this oil with 100 g of powdered milk, milk containing (n-6) -based docosapentaenoic acid and DHA was produced.
- Example 12 A total of 00% was obtained in Example 12 in a soft capsule made of -6) A microbial oil containing docosapentaenoic acid and DHA was filled with 30 Omg by a conventional method to obtain a soft carbose preparation.
- Example 20 Production of beverage containing (n-6) -based docosapentaenoic acid and DHA
- Example 21 Production of Micro-Feed Biological Feed Containing DHA and DPA
- the culture solution produced according to Example 5 was collected, and the solution was removed with a filter breath to obtain bacterial cells.
- the obtained cells were heated and dried at 105 for 3 hours and powdered with a coffee mill. Using the obtained powder or ban yeast as a control, cultivation of pemphides and brine shrimp was performed.
- the marine microorganism of the present invention is excellent in aquaculture and oil / fat properties, has a high (n-3) DHA and (n-6) DPA production ability, and has very little EPA production. Therefore, when the microorganism of the present invention is used, the content of (n-3) type DHA and (n-6) type DPA which are useful in the fields of foods and pharmaceuticals is high, and
- Oil can be produced in high yield with low PA content.
- a highly pure (n-3) type DHA or (n-6) type DPA can be separated from this oil.
- the fat and oil composition of the present invention contains (n-3) -based DPA having various physiological activities and (n-6) -based DPA in a specific ratio.
- animal feed, animal feed additives, and micro-feeds for living organisms are very economical because the residual S of cultured cells containing DHA and DPA can be used.
- by feeding the poultry feed to the poultry it is possible to obtain poultry eggs or yolk oil enriched with DHA and Z or DPA, which has never been obtained before.
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU53462/96A AU5346296A (en) | 1995-04-17 | 1996-04-17 | Novel microorganisms capable of producing highly unsaturated fatty acids and process for producing highly unsaturated fa tty acids by using the microorganisms |
US08/945,226 US6582941B1 (en) | 1995-04-17 | 1996-04-17 | Microorganisms capable of producing highly unsaturated fatty acids and process for producing highly unsaturated fatty acids by using the microorganisms |
EP96910187A EP0823475B1 (en) | 1995-04-17 | 1996-04-17 | Novel microorganisms capable of producing highly unsaturated fatty acids and process for producing highly unsaturated fatty acids by using the microorganisms |
DE69637953T DE69637953D1 (de) | 1995-04-17 | 1996-04-17 | Hoch ungesättigte fettsäurenproduzierende mikroorganismen und verfahren zur herstellung von hoch ungesättigten fettsäuren durch verwendung dieser mikroorganismen |
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JP7/115183 | 1995-04-17 | ||
JP11518395 | 1995-04-17 | ||
JP23666995 | 1995-09-14 | ||
JP7/236669 | 1995-09-14 | ||
JP26392195 | 1995-10-12 | ||
JP7/263921 | 1995-10-12 |
Publications (1)
Publication Number | Publication Date |
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WO1996033263A1 true WO1996033263A1 (fr) | 1996-10-24 |
Family
ID=27312903
Family Applications (1)
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PCT/JP1996/001049 WO1996033263A1 (fr) | 1995-04-17 | 1996-04-17 | Nouveaux micro-organismes capables de produire des acides gras hautement insatures et procede de production d'acides gras hautement insatures utilisant ces micro-organismes |
Country Status (5)
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---|---|
US (1) | US6582941B1 (ja) |
EP (1) | EP0823475B1 (ja) |
AU (1) | AU5346296A (ja) |
DE (1) | DE69637953D1 (ja) |
WO (1) | WO1996033263A1 (ja) |
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US7514244B2 (en) * | 1996-07-23 | 2009-04-07 | Suntory Ltd. | Lipid and food compositions containing docosahexaenoic acid and docosapentaenoic acid |
US8889382B2 (en) | 2003-11-10 | 2014-11-18 | Markus Luy | Process for cultivating microorganisms of the genus Thraustochytriales |
EP2816104A1 (de) | 2003-11-10 | 2014-12-24 | Lonza Ltd. | Verfahren zur Kultivierung von Mikroorganismen der Gattung Thraustochytriales unter Verwendung eines optimierten Niedrigsalzmediums |
US8900831B2 (en) | 2003-11-10 | 2014-12-02 | Matthias Rüsing | Method for the cultivation of microorganisms of the genus thraustochytriales by using an optimized low salt medium |
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US8232090B2 (en) | 2005-12-29 | 2012-07-31 | Abl Biotechnologies Ltd. | Strain of Schizochytrium limacinum useful in the production of lipids and extracellular polysaccharides and process thereof |
US9023616B2 (en) | 2006-08-01 | 2015-05-05 | Dsm Nutritional Products Ag | Oil producing microbes and method of modification thereof |
EP2105506A1 (de) | 2008-03-26 | 2009-09-30 | Lonza Ag | Verfahren zur Herstellung PUFAs enthaltender Öle unter Verwendung von Mikroorganismen der Ordnung Labyrinthulomycota |
JP2014524745A (ja) * | 2011-07-13 | 2014-09-25 | オールテック インク. | 藻類脂質組成物ならびにその調製方法および利用方法 |
US9873880B2 (en) | 2013-03-13 | 2018-01-23 | Dsm Nutritional Products Ag | Engineering microorganisms |
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Also Published As
Publication number | Publication date |
---|---|
US6582941B1 (en) | 2003-06-24 |
DE69637953D1 (de) | 2009-07-30 |
EP0823475A4 (en) | 2000-10-25 |
EP0823475B1 (en) | 2009-06-17 |
AU5346296A (en) | 1996-11-07 |
EP0823475A1 (en) | 1998-02-11 |
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