Process for producing purified tea extract
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United States of America Patent
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Nov 7, 2017
Grant Date -
Feb 12, 2009
app pub date -
Mar 1, 2007
filing date -
Mar 2, 2006
priority date (Note) -
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Abstract
Provided is a process for producing a tea extract having a high recovery rate of non-polymer catechins, a low caffeine content and an improved taste and color tone. As one embodiment of this invention provides, there is provided a process for producing a purified tea extract by adsorbing a tea extract on a synthetic adsorbent, bringing an aqueous solution of an organic solvent or a basic aqueous solution into contact with the synthetic adsorbent to elute non-polymer catechins, and then bringing the eluate into contact with activated carbon in an aqueous solution of an organic solvent.
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