Process For Producing Triglycerides Constituted By Three Polyunsaturated Fatty Acid Residues of One Type and Utilization Thereof
The invention provides a process, for producing fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 20% or more by weight for the total triglycerides, which comprises culturing a microorganism capable of producing said fats or oils and if required recovering said fats or oils; fats or oils produced by this process; and a process for producing said fats or oils.
1 . A process for producing fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 20% or more by weight for the total triglycerides, which comprises culturing a microorganism capable of producing said fats or oils and, if required, recovering said fats or oils.
2 . A process as claimed in claim 1 , wherein the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 30% or more by weight for the total triglycerides.
3 . A process as claimed in claim 2 , wherein the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 40% or more by weight for the total triglycerides.
4 . A process as claimed in claim 3 , wherein the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 50% or more by weight for the total triglycerides.
5 . A process as claimed in claim 1 , wherein the above-mentioned same polyunsaturated fatty acid is arachidonic acid.
6 . A process as claimed in claim 1 , wherein the above-mentioned microorganism is one of a genus Mortierella.
7 . A process as claimed in claim 6 , wherein the above-mentioned microorganism is one of a subgenus Mortierella of a genus Mortierella.
8 . A process as claimed in claim 7 , wherein the above-mentioned microorganism is one of a species Mortierella alpina.
9 . A process as claimed in claim 1 , wherein the above-mentioned microorganism is a mutant derived from a microorganism capable of producing fats or oils containing polyunsaturated fatty acids.
10 . Fats or oils produced by the method as claimed in claim 1 .
11 . A microorganism belonging to a genus Mortierella which is able to produce fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 20% or more by weight for the total triglycerides.
12 . A microorganism belonging to a genus Mortierella which is able to produce fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 30% or more by weight for the total triglycerides.
13 . A microorganism claimed in claim 11 , being Mortierella alpina.
14 . A microorganism claimed in claim 11 , being a mutant.
15 . Fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 20% or more by weight for the total triglycerides.
16 . Fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 30% or more by weight for the total triglycerides.
17 . Fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 40% or more by weight for the total triglycerides.
18 . Fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 50% or more by weight for the total triglycerides.
19 . A cultured cell of a microorganism comprising fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 20% or more by weight for the total triglycerides.
20 . A cultured cell of a microorganism comprising fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 30% or more by weight for the total triglycerides.
21 . A cultured cell of a microorganism comprising fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 40% or more by weight for the total triglycerides.
22 . A cultured cell of a microorganism comprising fats or oils in which the rate of triglycerides constituted by the same polyunsaturated fatty acids linking to the three hydroxyl groups of glycerol is 50% or more by weight for the total triglycerides.
23 . A microorganism claimed in claim 12 , being Mortierella alpina.
24 . A microorganism claimed in claim 12 , being a mutant.