Title:
TEA POLYPHENOLS AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2011/074538
Kind Code:
A1
Abstract:
Provided is a high-concentration tea polyphenol extract which has a non-polymeric catechin composition close to tea from a pot and shows reduced bitterness/astringency and no sourness. Also provided is a method whereby the aforesaid extract can be produced at a low cost.
A tea polyphenol composition characterized by: (A) the content of non-polymeric catechins being 60 mass% or more relative to the tea polyphenol composition; and (B) the content of gallocatechin in the non-polymeric catechins being 8-20 mass% relative to the total non-polymeric catechins. In the tea polyphenol composition, it is preferred that the ratio represented by gallate-form non-polymeric catechins (epigallocatechin gallate + epicatechin gallate + gallocatechin gallate + catechin gallate)/free-form non-polymeric catechins (epicatechin + epigallocatechin + gallocatechin + catechin) is 0.1-1.
Inventors:
KOIDE MOTOKI (JP)
JUNEJA LEKH RAJ (JP)
JUNEJA LEKH RAJ (JP)
Application Number:
PCT/JP2010/072388
Publication Date:
June 23, 2011
Filing Date:
December 13, 2010
Export Citation:
Assignee:
TAIYOKAGAKU CO LTD (JP)
KOIDE MOTOKI (JP)
JUNEJA LEKH RAJ (JP)
KOIDE MOTOKI (JP)
JUNEJA LEKH RAJ (JP)
International Classes:
A23F3/16
Domestic Patent References:
| WO2009031306A1 | 2009-03-12 |
Foreign References:
| JP2008141987A | 2008-06-26 |
Attorney, Agent or Firm:
KOBAYASHI, YOUHEI (JP)
Yohei Kobayashi (JP)
Yohei Kobayashi (JP)
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