EP 0912506 A1 19990506 - PROCESS FOR THE RECOVERY OF CRYSTALLINE -g(b)-CAROTENE FROM A NATURAL SOURCE

Title (en)

PROCESS FOR THE RECOVERY OF CRYSTALLINE -g(b)-CAROTENE FROM A NATURAL SOURCE

Title (de)

VERFAHREN ZUR GEWINNUNG VON BETA-CAROTEN AUS EINEM NATURSTOFF

Title (fr)

PROCEDE DE RECUPERATION DE -g(b)-CAROTENE CRISTALLIN A PARTIR D'UNE SOURCE NATURELLE

Publication

EP 0912506 A1 19990506 (EN)

Application

EP 97933695 A 19970718

Priority

EP 97933695 A 19970718
EP 9703961 W 19970718
EP 96202035 A 19960719
EP 96202334 A 19960822
EP 96202852 A 19961015

Abstract (en)

[origin: WO9803480A1] The present invention describes a process to recover highly pure beta -carotene crystals from a crude crystal preparation obtained from a natural source. To remove impurities, the crude crystals are stirred in a solvent in which beta -carotene has a low solubility, whereupon the crystals are filtered off and washed with fresh solvent. Using the process of the invention, a natural crystalline beta -carotene preparation with a very high purity is obtained, a purity comparable to that of synthetic beta -carotene.

IPC 1-7

C07C 403/24; C12P 23/00

IPC 8 full level

C07C 403/24 (2006.01); C09B 61/00 (2006.01); C12P 23/00 (2006.01); C12R 1/645 (2006.01)

CPC (source: EP)

C07C 403/24 (2013.01); C12P 23/00 (2013.01); C07C 2601/16 (2017.04)

Citation (search report)

See references of WO 9803480A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 9803480 A1 19980129; AU 3696197 A 19980210; EP 0912506 A1 19990506; JP 2000515742 A 20001128

DOCDB simple family (application)

EP 9703961 W 19970718; AU 3696197 A 19970718; EP 97933695 A 19970718; JP 50658098 A 19970718