Black Tea Extract and Preparation Method Therefor
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United States of America Patent
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Oct 31, 2019
app pub date -
Jul 19, 2017
filing date -
Jan 13, 2017
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Abstract
A black tea extract, comprising 20-30% parts by weight of theaflavin and 40-50% parts by weight of catechin. The theaflavin and the catechin in the black tea extract can be obtained by conventional high-concentration tea polyphenol extraction in the art, and can also be commercially available theaflavin and catechin in the art.
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