41. The plant also contains flavonoids , such as quercetin, isorhamnetin and kaempferol. 42. Flavonoids have effects on CYP ( P450 ) activity.43. Flavonoids are important plant secondary metabolites that serve various functions in higher plants.44. Various species contain apigenin, luteolin, quercetin, other flavonoids and ecdysteroids. 45. They are not related chemically to the anthocyanins and are not even flavonoids . 46. This enzyme participates in flavonoid biosynthesis and isoflavonoid biosynthesis. 47. The beverage has antioxidant effects because of the flavonoids . 48. The major constituents are tannins, flavonoids and starch. 49. It is a rare O-methylated flavonoid , a derivative of delphinidin. 50. Well known specialized compounds include alkaloids, polyphenols including flavonoids , and terpenoids.
