1. Other foods in this group contain antioxidant flavonoids like quercetin and kaempferol. 2. Flavonoid content is expressed in mg / g of quercetin . 3. Quercetin also activates or inhibits the activities of a number of proteins.4. However, arbutin acts as quercetin extremely mutagenic, carcinogenic and toxic. 5. Flavonoids identified in the plant include quercetin , avicularin, and guaijaverin. 6. They include quercetin , resveratrol, anthocyanin and catechin. 7. CTN-986 is a quercetin derivative found in cottonseeds and cottonseed oil. 8. This enzyme hydrolyzes the glycoside quercitrin to release quercetin and L-rhamnose. 9. The plant also contains flavonoids, such as quercetin , isorhamnetin and kaempferol. 10. Quercetin ( a flavonol ) and Genistein are naturally occurring auxin transport inhibitors.