Theaflavin (TF) and its derivatives, known collectively as theaflavins, are antioxidant polyphenols that are formed from the condensation of flavan-3-ols in tea leaves during the enzymatic oxidation (sometimes erroneously referred to as fermentation) of black tea. Theaflavin-3-gallate, theaflavin-3'-gallate, and theaflavin-3-3'-digallate are the main theaflavins. Theaflavins are types of thearubigins, and are therefore reddish in color.
See also
- Theaflavin 3-gallate
References

![Theaflavin3gallate [30462341]Biopurify Phytochemicals Online Shop](http://www.phytopurify.com/upload/0201/0ae2f1e92ff1afd937643bc60f1dc82e.png)


