Method for producing highly unsaturated fatty acids and lipid containing same

• US 20060014268A1
• Filed: 09/22/2005
• Published: 01/19/2006
• Est. Priority Date: 03/04/1997
• Status: Abandoned Application

• Current Assignee: Suntory Holdings Limited (Kotobuki Realty Co., Ltd.)
• Original Assignee: Suntory Ltd (Kotobuki Realty Co., Ltd.)
• Inventors: Ono, Kazuhisa, Akimoto, Kengo, Aki, Tsunehiro, Suzuki, Osamu, Shigeta, Seiko
• Application Number:
  US11/232,037
• Publication Number:
  US 20060014268A1
• Time in Patent Office: Days
• US Class Current: 435/254.100
• CPC Class Codes: A23K 10/16 Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions A23K10/12 takes precedence
• CPC Class Codes: A23K 20/158 Fatty acids; Fats; Products containing oils or fats
• CPC Class Codes: C12P 7/6427 Polyunsaturated fatty acids [PUFA], i.e. having two or more double bonds in their backbone
• CPC Class Codes: C12P 7/6432 Eicosapentaenoic acids [EPA]
• CPC Class Codes: C12P 7/6472 containing polyunsaturated fatty acid [PUFA] residues, i.e. having two or more double bonds in their backbone

Abstract

A method for producing highly unsaturated fatty acids comprising culturing a microorganism, belonging to the genus Mortierella and having resistance to a carbon source, in a medium having a carbon source concentration of at least 4% by weight, and collecting highly unsaturated fatty acids from the cultured products. Culturing the microorganism for about a week gives at least about 7 g/L of highly unsaturated fatty acids.

Claims

1-21. -21. (canceled)

22. Animal feed comprising microbial cells of a microorganism belonging to the genus Mortierella and having resistance to a carbon source of high concentration.

23. The animal feed according to claim 22, wherein the microorganism belonging to the genus Mortierella is a microorganism belonging to subgenus Mortierella.

24. The animal feed according to claim 23, wherein the microorganism belonging to subgenus Mortierella is a microorganism belonging to the species alliacea.

25. The animal feed according to claim 23, wherein the microorganism belonging to subgenus Mortierella is a microorganism belonging to the species alpina.

26. The animal feed according to claim 23, wherein the microorganism belonging to subgenus Mortierella is the genus Mortierella, strain SAM 2197 (FERM BP-6261).

27. The animal feed according to claim 22, wherein the animal feed further contains other feed components.

28. The animal feed according to claim 22, wherein the animal feed is poultry feed.

29. The animal feed according to claim 22, wherein the highly unsaturated fatty acid is arachidonic acid, dihomo-γ

-linolenic acid and/or eicosapentaenoic acid.

30. The genus Mortierella, strain SAM 2197 (FERM BP-6261) having resistance to a carbon source of high concentration.