Roche Vitamins Inc.

Carotech Sd. Bhd

Technische Universit&auml;t Hamburg-harburg

Gerd Brunner

Klaus-Victor Peinemann

Wan Ping Chan

Michael Schossig

Frank Reichmann

Lorenza Sartorelli

Philip Chan

Meng-Han Chuang

Kai Gast

Sendil Kumar

Walter Kulcke

From palm oil, valuable compounds like the tocochromanols, carotenoids, phytosterols and other can be derived in the new process. Fractions derived from crude palm oil, already enriched to some extent in tocochromanols, carotenoids, phytosterols, and others, are treated by supercritical fluid technology in a unique combination of counter current separation with selective adsorption and desorption using supercritical fluids.

Process for production of highly enriched fractions of natural compounds from palm oil with supercritical and near critical fluids

In a method for the separation of supercritical gas from substances dissolved in the gas with a membrane through which the gas passes while the substances dissolved in the gas is retained, a pore-free membrane of a polymer perfluoro-2,2-diemthyl-1,3-dioxole is used as a membrane in the separation process.

Method for high-pressure gas separation

A process for the recovery of unsaturated fatty acids with at least 16 carbon atoms in the molecule or a derivative of such a fatty acid from a mixture of fatty acids and/or fatty acid derivatives by column chromatography with supercritical or liquid carbon dioxide as the mobile phase comprises using aluminum oxide, optionally pretreated with alkali, as the stationary phase. The pre-treatment of the aluminum oxide is conveniently effected by contacting the particulate aluminum oxide with an aqueous solution of an alkali metal or alkaline earth metal hydroxide, optionally supplemented with a water-miscible or water-soluble organic solvent, in the pH range of about 10 to about 13 over several hours. The unsaturated fatty acids or fatty acid derivatives produced chromatographically in this manner are suitable as valuable active agents in the fields of nutrition and medicine.

Process for recovering unsaturated fatty acids and derivatives thereof

Growing community of inventors

Hamburg, Germany

Gerd Brunner