Patent · US Expired

Transformation of sterols by fermentation

US4451564A · kind A · utility

4Cited by

1References

6Claims

0Family size

Assignee

Henkel AG & Co. KGaA · DE

Inventors

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

Key dates

Filing date	Aug 2, 1982
Grant date	May 29, 1984
Priority date	—
Expiry date	Aug 2, 2002

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07J9/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.