Title:
CATECHIN COMPOSITION AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2008/072360
Kind Code:
A1
Abstract:
It is intended to provide a catechin composition with less unpleasant bitterness although containing unpolymerized catechins at a high concentration. When the weight ratio of the content of (A) gallate type catechins to the content of (B) unpolymerized catechins [(A)/(B)] is in the range of from 0.50 to 0.75, the weight ratio of the content of (B) the unpolymerized catechins to the content of (C) total polyphenols [(B)/(C)] is in the range of from 0.80 to 0.97, the weight ratio of the content of (D) a flavonol aglycone to the content of (B) the unpolymerized catechins [(D)/(C)] is less than 0.002, the weight ratio of the content of (E) caffeine to the content of (B) the unpolymerized catechins [(E)/(C)] is less than 0.1 and the CPA value of an aqueous solution measured by a CPA method using a C00 type sensor is 5 µV/ppm or higher in terms of the concentration of the unpolymerized catechins, it can be provided as a catechin composition with less unpleasant bitterness although containing unpolymerized catechins at a high concentration.
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Inventors:
NISHITANI EISEI (JP)
KUBOTA YUJI (JP)
TAKIHARA TAKANOBU (JP)
KUBOTA YUJI (JP)
TAKIHARA TAKANOBU (JP)
Application Number:
PCT/JP2006/325454
Publication Date:
June 19, 2008
Filing Date:
December 14, 2006
Export Citation:
Assignee:
ITO EN LTD (JP)
NISHITANI EISEI (JP)
KUBOTA YUJI (JP)
TAKIHARA TAKANOBU (JP)
NISHITANI EISEI (JP)
KUBOTA YUJI (JP)
TAKIHARA TAKANOBU (JP)
International Classes:
A23F3/16; A23L1/30; A23L2/52; A61K31/35; A61K36/18; A61P3/06; A61P43/00; C07D311/62
Foreign References:
| JP2004166671A | 2004-06-17 | |||
| JP2005058211A | 2005-03-10 | |||
| JP2005176606A | 2005-07-07 | |||
| JP2005058210A | 2005-03-10 | |||
| JP2005160368A | 2005-06-23 | |||
| JP2005176666A | 2005-07-07 | |||
| JP2006129757A | 2006-05-25 | |||
| JP2006230218A | 2006-09-07 | |||
| JP2007001893A | 2007-01-11 |
Other References:
TOKO K.: "Bunseki Kiki Kaisetsu Series (57) Mikaku Sensor", CENTER NEWS OF THE CENTER OF ADVANCED INSTRUMENTAL ANALYSIS, KYUSHU UNIVERSITY, vol. 15, no. 3, 1997, pages 2 - 8, XP003023071
IKEZAKI H. ET AL.: "Sosuisei Shishitsumaku ni yoru Hidenkaishitsu no Nigami Busshitsu no Kenchi (Detection of non-charged bitter taste substances by low charged Lipid/polymer Membranes)", THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN KAGAKU SENSOR SYSTEM KENKYUKAI SHIRYO, vol. CS-98, no. 28 TO 36, 10 July 1998 (1998-07-10), pages 43 - 48, XP003023072
IKEZAKI H. ET AL.: "Shishitsumaku Aji Sensor no Kando to Sentakusei no Seigyo Hoho (Techniques to control sensitivity and selectivity of multichannel taste sensor using lipid membranes)", THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN KAGAKU SENSOR SYSTEM KENKYUKAI SHIRYO, vol. CS-99, no. 22 TO 27, 6 August 1999 (1999-08-06), pages 13 - 17, XP003023073
IKEZAKI H. ET AL.: "Sosuisei Shishitsumaku ni yoru Hidenkaishitsu no Nigami Busshitsu no Kenchi (Detection of non-charged bitter taste substances by low charged Lipid/polymer Membranes)", THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN KAGAKU SENSOR SYSTEM KENKYUKAI SHIRYO, vol. CS-98, no. 28 TO 36, 10 July 1998 (1998-07-10), pages 43 - 48, XP003023072
IKEZAKI H. ET AL.: "Shishitsumaku Aji Sensor no Kando to Sentakusei no Seigyo Hoho (Techniques to control sensitivity and selectivity of multichannel taste sensor using lipid membranes)", THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN KAGAKU SENSOR SYSTEM KENKYUKAI SHIRYO, vol. CS-99, no. 22 TO 27, 6 August 1999 (1999-08-06), pages 13 - 17, XP003023073
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