PROCESS FOR PRODUCING PURIFIED TEA EXTRACT

Title:

PROCESS FOR PRODUCING PURIFIED TEA EXTRACT

Document Type and Number:

WIPO Patent Application WO/2007/099715

Kind Code:

A1

Abstract:

A process for producing a tea extract of low caffeine content improved in taste and color tone, in which the ratio of nonpolymeric catechins recovered is high. In one mode thereof, there is provided a process for producing a purified tea extract, comprising performing adsorption of a tea extract on a synthetic adsorbent, bringing the synthetic adsorbent into contact with an aqueous solution of organic solvent or basic aqueous solution to thereby attain elution of nonpolymeric catechins, and bringing the eluate into contact with active carbon in an aqueous solution of organic solvent.

Inventors:

MARUYAMA EIZO (JP)
SUGIYAMA YUKITERU (JP)
SHIKATA KENICHI (JP)
SHIBATA KEIJI (JP)
UEOKA HIDEAKI (JP)

Application Number:

PCT/JP2007/000156

Publication Date:

September 07, 2007

Filing Date:

March 01, 2007

Export Citation:

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Assignee:

KAO CORP (JP)
MARUYAMA EIZO (JP)
SUGIYAMA YUKITERU (JP)
SHIKATA KENICHI (JP)
SHIBATA KEIJI (JP)
UEOKA HIDEAKI (JP)

International Classes:

A23F3/16

Foreign References:

JPH03133928A	1991-06-07
JPH05153910A	1993-06-22
JPH08109178A	1996-04-30
JP2002335911A	2002-11-26
JPH01289447A	1989-11-21
JPS59219384A	1984-12-10
JP2001299887A	2001-10-30
JP2004321105A	2004-11-18
JP2004222719A	2004-08-12
JP2006036645A	2006-02-09
JP2005170871A	2005-06-30
JP2006008580A	2006-01-12
JP2001097968A	2001-04-10
JPH03133928A	1991-06-07
JPH05153910A	1993-06-22
JPH08109178A	1996-04-30
JP2002335911A	2002-11-26
JPH01289447A	1989-11-21
JPS59219384A	1984-12-10
JP2001299887A	2001-10-30
JP2004321105A	2004-11-18
JP2004222719A	2004-08-12
JP2006036645A	2006-02-09
JP2005170871A	2005-06-30
JP2006008580A	2006-01-12
EP1297757A1	2003-04-02
US20030096050A1	2003-05-22
JPH0420589A	1992-01-24
JPH05260907A	1993-10-12
JPH05306279A	1993-11-19

Other References: