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US 9,198,946 B2Granted
Green tea extract
AssigneeKao Corporation
InventorsYoshikazu Ogura, Susumu Ohishi, Masahiro Fukuda, Hirokazu Takahashi, Eri Itaya, Atsushi Konishi
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Abstract
A process for selectively removing caffeine from a caffeine-containing catechin composition, which includes dissolving the caffeine-containing catechin composition in a 9/1 to 1/9 by weight mixed solution of an organic solvent and water, and then bringing the resultant solution into contact with activated carbon alone or with activated carbon and also acid clay or activated clay; and a packaged beverage containing such a decaffeinated composition.
Claims8
A green tea extract,
- wherein a content weight ratio [(A)/(B)] of (A) non-polymer catechins to (B) total polyphenols is from 0.83 to 0.96, and
- wherein a concentration of non-polymer catechins is from 35 to 55 wt %.
Dependencies are inferred from the claim text.