Patent ID: 6271404
Filing Date: 2001-08-07
Classification: A23D,C11C,C12P

Abstract:
Process for the preparation of materials comprising mainly conjugated isomers of long chain polyunsaturated fatty acids which comprises treating a starting material comprising a free fatty acid composition or an alkyl ester composition thereof, containing at least 25 wt % of at least one isomer other than the conjugated isomers of long chain polyunsaturated fatty acids with a base in a solvent at a temperature between 100.degree. C. and 180.degree. C. wherein the solvent is an alcohol with at least 3 C-atoms and at least two hydroxy groups having a ratio of number of C-atoms: number of OH groups of at least 1.25 but less than 3.5, the base being utilized in a concentration of 0.25 mole/l-3.5 mole/l) solvent.