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US 12,458,036 B2Granted
Oxidatively stable polyunsaturated fatty acid containing oil
AssigneeDsm IP Assets B.V.
InventorsMichael Lenn Stefanski, Xuejun Tang, Kristine Sheila Crawford
Life of this patent
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Abstract
An oil comprising (i) at least 30 wt. % of one or more polyunsaturated fatty acids having at least 4 double bonds; (ii) at least one first antioxidant; and (iii) less than about 1000 ppm lecithin. The oil may comprise less than about 750 ppm of a second antioxidant chosen from an ascorbic acid derivative.
Claims32
An oil comprising
- (a) at least 30 wt. % of polyunsaturated fatty acids having at least 4 double bonds,
- wherein the polyunsaturated fatty acids having at least 4 double bonds comprise a mixture of docosahexaenoic acid (DHA), omega-6 docosapentaenoic acid (DPA n-6), and eicosapentaenoic acid (EPA);
- (b) at least one first antioxidant,
- wherein the at least one first antioxidant comprises a tocopherol in an amount ranging from about 900 ppm to about 3400 ppm;
- (c) less than 10 ppm lecithin;
- and
- (d) less than 1 ppm of an ascorbic acid derivative,
- wherein the oil has a peroxide value (POV) of from 0.4 to 5, an anisidine value (AnV) less than 20, and a Rancimat value of from 4.1 to 19.
5 more elements
An oil from at least one microalgae from the order Thraustochytriales, comprising
- (a) at least 30 wt. % of polyunsaturated fatty acids having at least 4 double bonds,
- wherein the polyunsaturated fatty acids having at least 4 double bonds comprise a mixture of docosahexaenoic acid (DHA), omega-6 docosapentaenoic acid (DPA n-6), and eicosapentaenoic acid (EPA);
- (b) at least one first antioxidant,
- wherein the at least one first antioxidant is a tocopherol and the oil comprises tocopherol in an amount ranging from about 900 ppm to about 3400 ppm;
- and
- (c) less than 10 ppm lecithin, and
- (d) less than 1 ppm of an ascorbic acid derivative,
- wherein the oil has a peroxide value (POV) of from 0.4 to 5, an anisidine value (AnV) less than 20, and a Rancimat value of from 4.1 to 19.
5 more elements
Dependencies are inferred from the claim text.