Sterol concentrates, the preparation thereof, and their use in the transformation of sterols by fermentation

US4374776A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Alfred Struve · Hilden, DE
• Frank Hill · Mettmann, DE
• Joachim Schindler

Key dates

• Filing date: Sep 2, 1980
• Grant date: Feb 22, 1983
• Expiry date: Sep 2, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07J9/00
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

This invention relates to a process for the preparation of a concentrate containing sterol compounds of natural origin, which concentrate is suitable as a starting material for the transformation of sterol compounds by fermentation, which comprises the steps of: PA1 (a) transesterifying distillation residues from the processing of natural fats and/or oils with a lower alcohol; and PA1 (b) subjecting the product of step (a) to molecular distillation to produce a main fraction having a content of up to about 50 percent by weight of sterol compounds. The invention also relates to sterol concentrates produced thereby and their transformation to valuable secondary products.