Mixtures of triglycerides of natural polyunsaturated fatty acids with high polyunsaturated fatty acid content, method for producing same and use thereof
US7588791B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 16, 2002 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Nov 3, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23V2002/00
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A process for increasing the concentration of PUFA triglycerides present in natural PUFA oils, in which a natural PUFA oil having a triglyceride content of more than 85% by weight, based on the total weight of the mixture, and having a total PUFA content of more than 39% by weight of total fatty acids is dissolved in an organic solvent or an organic solvent mixture, the mixture is allowed to stand at a temperature of from −35° C. to −100° C. for a period of more than five minutes, the mixture is separated into a supernatant comprising PUFA-triglyceride mixture and a sediment phase, the separation preferably taking place by filtration or centrifugation, and the solvent or solvent mixture, after the removal of the sediment phase, is separated from the supernatant. PUFA-triglyceride mixtures having a PUFA content of more than 55% by weight of total fatty acids of a main PUFA, or at least two PUFAs selected from stearidonic acid, eicosapentaenoic acid, docosapentaenoic acid, docosahexaenoic acid, gamma-linolenic acid and arachidonic acid, and also use thereof in pharmaceutical, cosmetics and food preparations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.