PROCESS FOR PRODUCING TEAS AND PROCESS FOR PRODUCING GREEN TEA, POWDERED GREEN TEA, OOLONG TEA AND BLACK TEA

Title:

PROCESS FOR PRODUCING TEAS AND PROCESS FOR PRODUCING GREEN TEA, POWDERED GREEN TEA, OOLONG TEA AND BLACK TEA

Document Type and Number:

WIPO Patent Application WO/2003/022065

Kind Code:

A1

Abstract:

As fresh tealeaf materials for producing green tea, black tea and oolong tea, it has been a practice to mainly use so−called first−picked leaves having a favorable flavor. In contrast, second−picked leaves and leaves picked in autumn or winter are scarcely employed as tealeaf materials because of the astringency. It is intended to control the astringency and increase the sweet and savory components in these astringent tealeaf materials to thereby impart a high commercial value to them comparable to the first−picked leaves. A process for producing tea wherein the astringency of a fresh tealeaf material is controlled by adding enzymes digesting tannin, polysaccharides and proteins thereto to thereby relieve the astringency and enhance the sweetness and savor&semi and drinks obtained by using tea products thus produced.

Inventors:

TAKANO TETSUO (JP)
FUJIWARA KUNIMICHI (JP)

Application Number:

PCT/JP2002/003627

Publication Date:

March 20, 2003

Filing Date:

April 11, 2002

Export Citation:

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Assignee:

UNICAFE INC (JP)
TAKANO TETSUO (JP)
FUJIWARA KUNIMICHI (JP)

International Classes:

A23F3/10; A23F3/16; (IPC1-7): A23F3/10

Foreign References:

JPS49110900A	1974-10-22
JPH1118678A	1999-01-26
JPH05328901A	1993-12-14
JPS49110899A	1974-10-22

Other References:

KAORU NAKAMORI ET AL.: "Tannase no chainryo deno riyo", FOOD PROCESSING, vol. 32, no. 12, December 1997 (1997-12-01), pages 14 - 16, XP002951844