Phenolic contents of fruits and vegetables ranged from 106mg quercetin/g of extract for Capsicum annuum to 360mg quercetin/g of extract for Lycopersicon esculentum (unripe) while flavonoid contents ranged from 64 mg quercetin/g of extract for Daucus carota to 482 mg quercetin/g of extract for Zingiber officinale.