Mulberries are a good source of vitamins and minerals, especially contain a high amount of anthocyanin (Gerasopoulos and Stavorulakis, 1997). Besides its use as food, the plant fruits, leaves and barks are well known as traditional medicine in Turkey and have been used for many years as an anti-fever, as a laxative, anthelmetic, expectorant and facilitate discharge of urine and lower blood pressure (Baytop, 1999).
Recently, it has gained an important position in the local soft drink market, although its biological and pharmacological effects are still poorly defined. However, little information is avaible on antioxidant capasities in leaves of black mulberry in Turkey. The investigation presented here in was undertaken for antioxidant capacity of fruit and leaves of black mulberry (Morus nigra).