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Title:
PROCESS FOR PRODUCING PURIFIED ANTHOCYANIN AND CRYSTALLINE ANTHOCYANIN
Document Type and Number:
WIPO Patent Application WO/2002/022847
Kind Code:
A1
Abstract:
A process for producing purified anthocyanidin glucoside characterized by comprising cleaving the rhamnose end of anthocyanidin rutinoside with rhamnosidase, converting the anthocyanidin rutinoside component into anthocyanidin glucoside and then purifying and isolating the anthocyanidin glucoside component; or a crystalline anthocyanidin glucoside salt obtained by further crystallizing the purified anthocyanidin glucoside and a process for producing the same. A process for producing anthocyanidin rutinoside characterized by comprising cleaving the glucose end of anthocyanidin glucoside with $g(b)-glucosidase, eliminating via decomposition and then purifying and isolating the anthocyanidin rutinoside component; or a crystalline anthocyanidin rutinoside salt obtained by further crystallizing the purified anthocyanidin rutinoside and a process for producing the same.

Inventors:
MATSUMOTO HITOSHI (JP)
HANAMURA SATOSHI (JP)
HIRAYAMA MASAO (JP)
Application Number:
PCT/JP2001/007891
Publication Date:
March 21, 2002
Filing Date:
September 11, 2001
Export Citation:
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Assignee:
MEIJI SEIKA KAISHA (JP)
MATSUMOTO HITOSHI (JP)
HANAMURA SATOSHI (JP)
HIRAYAMA MASAO (JP)
International Classes:
C07H17/00; C07H17/065; C09B61/00; C12P19/14; C12P19/44; (IPC1-7): C12P19/14; C09B61/00; C07H17/065
Foreign References:
JPH03209321A1991-09-12
JPH03209320A1991-09-12
Other References:
MATSUMOTO H. ET AL.: "Preparative-scale isolation of four anthocyanin components of black current (Ribes nigrum L.) fruits", J. AGRIC. FOOD CHEM., vol. 49, no. 3, March 2001 (2001-03-01), pages 1541 - 1545, XP002906737
FROYTLOG C. ET AL.: "Combination of chromatographic techniques for the preparative isolation of anthocyanins-applied on blackcurrent(Ribes nigrum)", JOURNAL OF CHROMATOGRAPHY A, vol. 825, 1998, pages 89 - 95, XP004141945
DEGENHARDT A. ET AL.: "Separation and purification of anthocyanins by high-speed countercurrent chromatography and screening for antioxidant activity", J. AGRIC. FOOD CHEM., vol. 48, no. 2, February 2000 (2000-02-01), pages 338 - 343, XP002906738
ANDO T. ET AL.: "Floral anthocyanins in wild taxa of petunia (solanaceae)", BIOCHEMICAL SYSTEMATICS AND ECOLOGY, vol. 27, 1999, pages 623 - 650, XP002906739
ORDAZ-GALINDO A. ET AL.: "Purification and identification of capulin (prunus serotina Ehrh)", FOOD CHEMISTRY, vol. 65, 1999, pages 201 - 206, XP002906740
NORBAEK R. ET AL.: "Anthocyanins in chilean species of alstroemeria", PHYTOCHEMISTRY, vol. 42, no. 1, 1996, pages 97 - 100, XP002906741
See also references of EP 1318201A4
Attorney, Agent or Firm:
Hiraki, Yusuke (17-1 Toranomon 1-chome Minato-ku, Tokyo, JP)
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