11. Polyphenols in tea include catechins , theaflavins, tannins, and flavonoids. 12. To explore further, the researchers looked for other foods that contained catechins . 13. We hope to clarify whether or not catechins can protect against chronic diseases, 14. Garlic, onions and broccoli have sulfur, and green tea contains catechins . 15. They include quercetin, resveratrol, anthocyanin and catechin . 16. Proanthocyanidins are mostly polymeric units of catechin and epicatechin. 17. The other stereoisomer is (-)-catechin or ent-catechin. 18. The other stereoisomer is (-)-catechin or ent-catechin . 19. I am currently writing stuff about the different stereoisomers in the catechin article. 20. Reaction on condensed tannins from Douglas fir bark produces epicatechin and catechin thioglycolates.
