Process for the preparation of materials with a high content of conjugated long chain polyunsaturated fatty acids
US6184009A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1998 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Sep 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S426/807
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A process for preparing a material B comprising geometrical isomers L.sub.1 and L.sub.2 of conjugated linoleic acid moieties in a specific weight ratio of X.sub.B wherein a material A selected from free fatty acids, mono-, di- or tri-glycerides, phospholipids, alkyl esters or wax-esters containing at least 5 weight % of L.sub.1 and L.sub.2 are subjected to enzymatic conversion using an enzyme that can discriminate between L.sub.1 and L.sub.2 so that the original weight ratio of L.sub.1 to L.sub.2 of X.sub.A in the starting material is increased to X.sub.B where X.sub.B is equal to or greater than 1.1 X.sub.A. Advantageously, the isomers L.sub.1 and L.sub.2 are cis.sup.9, trans.sup.11 and trans.sup.10, cis.sup.12 linoleic acid or vice versa. The enzyme is advantageously a lipase obtained from Geotrichum candidum or Candida rugosa or a phospholipase. The starting material A may be, for example, a fish oil or vegetable oil. The resulting products may be blended with a complementary fat and may be used as foods or food supplements or in pharmaceutical compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.