Patent · US Expired

Process for the extraction of carotenes from natural sources

US5714658A · kind A · utility

11Cited by

5References

9Claims

0Family size

Assignee

SKW Trostberg Aktiengesellschaft · DE

Inventors

Jurgen Heidlas · Trostberg, DE
Georg Huber · Bad Aibling, DE
Jan Cully · Garching bei München, DE
Utz Kohlrausch · Trostberg, DE

Key dates

Filing date	Aug 23, 1996
Grant date	Feb 3, 1998
Priority date	—
Expiry date	Aug 23, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B61/00
WIPO fieldFood chemistry
WIPO sectorChemistry

Abstract

For the extraction of carotenes, in particular of .beta.-carotene, from natural sources, these are stirred for several hours at at least 30.degree. C. in a solvent mixture composed of acetic esters of C.sub.1 -C.sub.4 alcohols as well as a portion of 1 to 25% by weight of an oil of biological origin. The natural colorant is in this way obtained in very high space-time yields and high purity.

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