Processes for preparing conjugated linoleic acid from conjugated linoleic acid esters

US7138256B2 · kind B2 · utility

Assignee

• Cognis Deutschland GmbH & Co. KG · DE

Inventors

• Lars Zander · Rommerskirchen, DE
• Stefan Busch · Mülheim an der Ruhr, DE
• Carolin Meyer · Goldkronach, DE
• Sabine Both · Goldkronach, DE
• Ulrich Schoerken · Goldkronach, DE

Key dates

• Filing date: May 28, 2003
• Grant date: Nov 21, 2006
• Expiry date: May 28, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12P7/6431
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

Processes for preparing conjugated linoleic acid are described wherein a conjugated linoleic acid lower alkyl ester is subjected to hydrolysis in the presence of an enzyme to form a hydrolyzate comprising a conjugated linoleic acid and a lower alkanol, wherein at least a portion of the lower alkanol is continuously removed; the hydrolyzate is separated into an organic phase and an aqueous/alcoholic phase; and the conjugated linoleic acid is separated from the organic phase.