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1. (WO1998003480) PROCESS FOR THE RECOVERY OF CRYSTALLINE $g(b)-CAROTENE FROM A NATURAL SOURCE
Dados bibliográficos mais recentes no arquivo da Secretaria Internacional   

№ de pub.:    WO/1998/003480    № do pedido internacional:    PCT/EP1997/003961
Data de publicação: 29.01.1998 Data de depósito internacional: 18.07.1997
Pedido de exame (capítulo 2) depositado:    09.02.1998    
CIP:
C12P 23/00 (2006.01)
Requerentes: GIST-BROCADE B.V. [NL/NL]; Wateringseweg 1, P.O. Box 1, NL-2600 MA Delft (NL) (For All Designated States Except US).
SIBEYN, Mieke [NL/NL]; (NL) (For US Only).
DE PATER, Robertus, Mattheus [NL/NL]; (NL) (For US Only)
Inventores: SIBEYN, Mieke; (NL).
DE PATER, Robertus, Mattheus; (NL)
Mandatário: VISSER-LUIRINK, Gesina; Gist-Brocades N.V., Patents and Trademarks Dept., Wateringseweg 1, P.O. Box 1, NL-2600 MA Delft (NL)
Dados da prioridade:
96202035.0 19.07.1996 EP
96202334.7 22.08.1996 EP
96202852.8 15.10.1996 EP
Título (EN) PROCESS FOR THE RECOVERY OF CRYSTALLINE $g(b)-CAROTENE FROM A NATURAL SOURCE
(FR) PROCEDE DE RECUPERATION DE $g(b)-CAROTENE CRISTALLIN A PARTIR D'UNE SOURCE NATURELLE
Resumo: front page image
(EN)The present invention describes a process to recover highly pure $g(b)-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 $g(b)-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 $g(b)-carotene preparation with a very high purity is obtained, a purity comparable to that of synthetic $g(b)-carotene.
(FR)Procédé permettant de récupérer des cristaux de $g(b)-carotène extrêmement purs à partir d'une préparation de cristaux bruts obtenue à partir d'une source naturelle. Pour enlever les impuretés, on remue les cristaux bruts dans un solvant dans lequel le $g(b)-carotène présente une faible solubilité, puis on récupère les cristaux par filtrage et on les lave avec du solvant neuf. Le procédé de la présente invention permet d'obtenir une préparation cristalline naturelle de $g(b)-carotène à pureté extrêmement élevée, comparable à celle du $g(b)-carotène synthétique.
Estados designados: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW.
African Regional Intellectual Property Organization (GH, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Língua de publicação: English (EN)
Língua de depósito: English (EN)