Abstract: A preparation method of non-ester tea polyphenols rich in EGC. Includes leaching wall-broken crushed tea leaves using endogenous hydrolytic enzymes contained in the tea leaves; refining the leached solution after filtration and concentration and purifying it by mobile leaching-water washing; concentrating and drying the purified product to obtain a non-ester tea polyphenols product rich in EGC, wherein the content of tea polyphenols is 90-99.5%, the content of EGC is greater than 80%, and the content of ester catechins EGCG+ECG is less than 10%.

Abstract: The present invention relates to a preparation method of non-ester tea polyphenols rich in EGC. Wall-broken crushed tea leaves are subjected to leaching using endogenous hydrolytic enzymes contained in the tea leaves. The leached solution after filtration and concentration is subjected to refining and purification by mobile leaching-water washing. The purified product is subjected to concentration and drying to obtain a non-ester tea polyphenols product rich in EGC, wherein the content of tea polyphenols is 90-99.5%, the content of EGC is greater than 80%, and the content of ester catechins EGCG+ECG is less than 10%. According to the preparation method of the non-ester tea polyphenols rich in EGC of the present invention, it does not add any exogenous hydrolytic enzyme, so as to avoid the contamination to the product by the exogenous hydrolytic enzyme. Meanwhile, the content of EGC is high, the production process is simplified, and the yield of the product is high, which is conducive to industrial production.

Abstract: A process for producing purified theaflavin extract is provided which comprises combining an organic solvent with tea leaves, extracting polyphenols from the tea leaves to produce an organic stock substrate solution; producing a second batch of tea leaves; grinding the second batch of tea leaves to produce stock fermentation enzyme; combining the stock substrate solution with the stock fermentation enzyme to produce a fermentation mixture; fermentation of the mixture to produce theaflavins; and, separating the theaflavins from the fermentation mixture to produce purified theaflavin extract. Oral dosage forms are provided which comprise an effective amount of the purified theaflavin extract. Methods of treatment of human physiological disorders are provided which comprise administering an oral dosage form.

Abstract: A process for producing purified theaflavin extract is provided which comprises combining an organic solvent with tea leaves, extracting polyphenols from the tea leaves to produce an organic stock substrate solution; producing a second batch of tea leaves; grinding the second batch of tea leaves to produce stock fermentation enzyme; combining the stock substrate solution with the stock fermentation enzyme to produce a fermentation mixture; fermentation of the mixture to produce theaflavins; and, separating the theaflavins from the fermentation mixture to produce purified theaflavin extract. Oral dosage forms are provided which comprise an effective amount of the purified theaflavin extract. Methods of treatment of human physiological disorders are provided which comprise administering an oral dosage form.