Process for producing omega-9 highly unsaturated fatty acid and lipid containing the same
AssigneeSuntory Limited
InventorsKengo Akimoto, Hiroshi Kawashima, Sakayu Shimizu
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Abstract
The present invention discloses a process for producing lipid containing omega-9 highly unsaturated fatty acid by culturing in a medium a mutant strain obtained by mutation on a microorganism having the ability to produce arachidonic acid belonging to the genus Mortierella and so forth, in which .DELTA.12 desaturation activity is decreased or lost, but at least one of .DELTA.5 desaturation activity, .DELTA.6 desaturation activity and chain length elongation activity is elevated. Moreover, the present invention also discloses a process for producing omega-9 highly unsaturated fatty acid by collecting omega-9 highly unsaturated fatty acid from the culture or lipid described above.
Claims13
A process for producing lipid comprising omega-9 highly unsaturated fatty acid, the process comprising the steps of:
- culturing in a medium a mutant obtained by mutation of a microorganism which produces arachidonic acid, said microorganism belonging to the genus Mortierella and a species selected from the group consisting of Mortierella elongata, Mortierella exiqua, Mortierella hygrophila and Mortierella alpina in which .DELTA.12 desaturation activity has been decreased or lost, but at least one of .DELTA.5 desaturation activity, .DELTA.6 desaturation activity and chain length elongation activity has been elevated;
- and
- recovering lipid containing omega-9 highly unsaturated fatty acid from that culture.
A process for producing lipid comprising omega-9 highly unsaturated fatty acid, the process comprising the steps of:
- culturing in a medium a mutant obtained by mutation of a microorganism which produces arachidonic acid, said microorganism belonging to the genus Mortierella and a species selected from the group consisting of Mortierella elongata SAM 0219, Mortierella alpina SAM 2086, Mortierella alpina SAM 2104, and Mortierella alpina SAM 1861, in which .DELTA.12 desaturation activity has been decreased or lost, but at least one of .DELTA.5 desaturation activity, .DELTA.6 desaturation activity and chain length elongation activity has been elevated ;
- and
- recovering lipid containing omega-9 highly unsaturated fatty acid from that culture.
Dependencies are inferred from the claim text.