摘要:
Edible oil containing arachidonic acid obtained from microorganisms belonging to the subgenus Mortierella of the genus Mortierella and being capable of producing arachidonic acid are provided. The oil contain little unsaponifiable matters and, above all, the smallest possible amount of sterol with cyclopropane structure which have not been recognized as food components, and are suitable for the production of foods, in particular, infant formula. Arachidonic acid-containing edible oil originating in microorganisms containing not more than 0.8% by weight, preferably not more than 0.6% by weight of unsaponifiable matters and 20% by weight or more of arachidonic acid. Further, these edible oil contain not more than 0.3% by weight, preferably not more than 0.15% by weight of 24,25-methylenecholest-5-en-3 β -ol. The microorganisms are those belonging to the subgenus Mortierella of the genus Mortierella and being capable of producing arachidonic acid. These microorganisms belong to the species alpina of the genus Mortierella. Foods including the arachidonic acid-containing edible oil. Formula for premature infants, formula for infants, foods for infants, and foods for pregnant women and nursing mothers, including the arachidonic acid-containing edible oil.
摘要:
A process for controlling the mycelial morphology of a microorganism belonging to the genus Mortierella during culturing and a process for producing unsaturated fatty acids and a lipid containing them by using a culture medium for culturing a microorganism in which phosphate ions, potassium ions, sodium ions, magnesium ions, and calcium ions in the culture medium are in the range of 5 to 60 mM, 5 to 60 mM, 2 to 50 mM, 0.5 to 9 mM, and 0.5 to 12 mM, respectively, characterized in that the microorganism belonging to the genus Mortierella is cultured in a culture medium containing phosphate ions in the range of 5 to 60 mM, potassium ions in the range of 5 to 60 mM, sodium ions in the range of 2 to 50 mM, magnesium ions in the range of 0.5 to 9 mM, and calcium ions in the range of 0.5 to 12 mM, respectively, to produce unsaturated fatty acids and the lipid containing them, and the culture medium for culturing a microorganism having phosphate ions, potassium ions, sodium ions, magnesium ions, and calcium ions in the range of 5 to 60 mM, 5 to 60 mM, 2 to 50 mM, 0.5 to 9 mM, and 0.5 to 12 mM, respectively.
摘要:
Methods are disclosed in which a microorganism belonging to the genus mortierella is cultivated to produce a lipid containing the desired polyunsaturated fatty acids, for example arachidonic acid, dihomo-γ-linolenic acid and/or eicosapentaenoic acid. The carbon source concentration in the culture medium is at least 4% by weight, and the mortierella microorganism is selected for resistance to high carbon source concentration. Lipid or polyunsaturated fatty acid is recovered from the culture. Culturing microorganism for about a week can give at least about 7g/L of the highly unsaturated fatty acid.
摘要:
Methods are disclosed in which a microorganism belonging to the genus mortierella is cultivated to produce a lipid containing the desired polyunsaturated fatty acids, for example arachidonic acid, dihomo-γ-linolenic acid and/or eicosapentaenoic acid. The carbon source concentration in the culture medium is at least 4% by weight, and the mortierella microorganism is selected for resistance to high carbon source concentration. Lipid or polyunsaturated fatty acid is recovered from the culture. Culturing microorganism for about a week can give at least about 7g/L of the highly unsaturated fatty acid.