Many botanical products, including buchu, contain natural antioxidants and bioflavonoids, usually in the form of non-volatile polyphenolic phytochemical constituents. Buchu contains the natural compounds quercetin, rutin, hesperidin and diosmin, all of which have potent antioxidant and/or bioflavonoid properties. These non-volatile compounds are usually extracted as an additional by-product from the de-oiled leaf after steam distillation and find application in the nutraceutical and antioxidant markets.
