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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 (20 Higashi-fukashib, Kamisu-shi Ibaraki 03, 3140103, JP)
丸山 栄造 (〒03 茨城県神栖市東深芝20 花王株式会社研究所内 Ibaraki, 3140103, JP)
SUGIYAMA, Yukiteru (20 Higashi-fukashib, Kamisu-shi Ibaraki 03, 3140103, JP)
杉山 征輝 (〒03 茨城県神栖市東深芝20 花王株式会社研究所内 Ibaraki, 3140103, JP)
SHIKATA, Kenichi (20 Higashi-fukashib, Kamisu-shi Ibaraki 03, 3140103, JP)
Application Number:
JP2007/000156
Publication Date:
September 07, 2007
Filing Date:
March 01, 2007
Export Citation:
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Assignee:
KAO CORPORATION (14-10, Nihonbashikayabacho 1-chome Chuo-ku, Tokyo 10, 1038210, JP)
花王株式会社 (〒10 東京都中央区日本橋茅場町1丁目14番10号 Tokyo, 1038210, JP)
MARUYAMA, Eizo (20 Higashi-fukashib, Kamisu-shi Ibaraki 03, 3140103, JP)
丸山 栄造 (〒03 茨城県神栖市東深芝20 花王株式会社研究所内 Ibaraki, 3140103, JP)
SUGIYAMA, Yukiteru (20 Higashi-fukashib, Kamisu-shi Ibaraki 03, 3140103, JP)
杉山 征輝 (〒03 茨城県神栖市東深芝20 花王株式会社研究所内 Ibaraki, 3140103, JP)
International Classes:
A23F3/16
Attorney, Agent or Firm:
THE PATENT CORPORATE BODY ARUGA PATENT OFFICE (Kyodo Bldg, 3-6 Nihonbashiningyocho 1-chom, Chuo-ku Tokyo 13, 1030013, JP)
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