Patent ID: 7417159

Claim:
A process for the preparation of a composition comprising a mixture of linolenic acids, said linolenic acids being 9cis,11trans,15cis-octadecatrienoic acid and 9cis,13trans,15cis-octadecatrienoic acid, said process comprising the steps of: providing a solvent of water; blending with the solvent in the presence of a base one or a mixture of vegetable oils with various concentrations of linolenic acid or partial glycerides of such oils or partially purified and/or concentrated isomers to produce a reaction mixture; and recovering from the reaction mixture the composition comprising the mixture of linolenic acids, wherein the composition comprises a mixture of 9cis,13trans,15cis-octadecatrienoic acid and 9cis,11trans,15cis-octadecatrienoic acid in a ratio of 1:1 w/w, a concentration of said mixture varying between 30% and 90% by weight relative to the weight of the composition.