IP Library › Granted Patent US 7,736,885
Granted Patent B2
US 7,736,885 · App. 11/782,571 · Granted Jun 15, 2010

Method for production of arachidonic acid

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Quick Facts
Patent No.
US 7,736,885
App. No.
11/782,571
Granted
Jun 15, 2010
Kind
B2
Abstract

The present invention relates to a process for producing arachidonic acid. In one embodiment, Mortierella sect. schmuckeri microorganisms are cultured in fermentation medium, preferably containing a component of a complex nitrogen source. Further disclosed is a food product which includes Mortierella sect. schmuckeri microorganisms or lipid isolated from such microorganisms to enhance the arachidonic acid content of the food product.

Claims (10)

1. A method for extending the shelf life of Mortierella sect. schmuckeri cells or arachidonic acid rich oil from cells of Mortierella sect. schmuckeri , comprising storing the oil or cells under non-oxidizing conditions; wherein said Mortierella sect. schmuckeri produces at least about 0.70 grams of arachidonic acid per liter per day when grown under appropriate fermentation conditions.

2. The method of claim 1 , wherein the non-oxidizing conditions comprise a vacuum.

3. The method of claim 1 , wherein the non-oxidizing conditions comprise a non-oxidizing atmosphere.

4. The method of claim 1 , wherein the non-oxidizing atmosphere is N 2 or CO 2 .

5. The method of claim 1 , wherein said Mortierella sect. schmuckeri is of the species Mortierella schmuckeri.

6. The method of claim 1 , wherein said Mortierella sect. schmuckeri is of the species Mortierella camargensis.

7. The method of claim 1 , wherein said Mortierella sect. schmuckeri produces at least about 0.80 grams of arachidonic acid per liter per day when grown under appropriate fermentation conditions.

8. The method of claim 1 , wherein said Mortierella sect. schmuckeri produces at least about 0.86 grams of arachidonic acid per liter per day when grown under appropriate fermentation conditions.

9. The method of claim 1 , wherein said Mortierella sect. schmuckeri grows as a dispersed filamentous form when grown under liquid culture conditions.

10. The method of claim 1 , wherein at least about 21.9% of the total fatty acid of said Mortierella sect. schmuckeri is arachidonic acid.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 1, 2012
From: MARTEK BIOSCIENCES CORPORATION
To: DSM IP ASSETS B.V.
Reel/Frame 028698/0935 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 11, 2011
From: MARTEK BIOSCIENCES BOULDER CORPORATION
To: MARTEK BIOSCIENCES CORPORATION
Reel/Frame 025939/0018 →
CHANGE OF NAME Recorded Feb 24, 2011
From: OMEGATECH, INC.
To: MARTEK BIOSCIENCES BOULDER CORPORATION
Reel/Frame 025854/0705 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 10, 2011
From: BARCLAY, WILLIAM R.
To: OMEGATECH INC.
Reel/Frame 025789/0388 →