Catechin, also known as tea tannin, is combination in of flavanols in tea. It is also know as an important polyphenols tea. Tea polyphenol content is about accounted 75% to 80%, is a source of bitter taste of tea. Catechin mainly is also divided into four types: epicatechin (epicatechin EC), epigallocatechin (epigallocatechin EGC), epicatechin gallate (epicatechin gallate epigallocatechin gallate (ECG) and epigallocatechin gallate EGCG).
Made with the white to yellow or irregular crystal powder, it has no special smell. It is slightly in cold water soluble, ether soluble, in hot water, ethanol, acetic acid and glacial, acetone, insoluble in benzene, chloroform and petroleum ether.It is practical that it is used for the treatment of rhinitis, sinusitis, treatment of stomatitis as well as clear throat.
Catechin is an important ingredient in tea. It has many features such as preventing and treating, cardiovascular, preventing, disease and cancer. Dextrorotation, catechin and reduce, capillary, permeability, diarrhea care, bleeding hearts, antiviral drugs, antifungal, inhibition, of, ACE, and prevention of gastric, as well as other effects.
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