Antioxidant properties of Prangos ferulacea (L.) Lindl., Chaerophyllum macropodum Boiss. and Heracleum persicum Desf. from Apiaceae family used as food in Eastern Anatolia and their inhibitory effects on glutathione-S-transferase - Coruh, N; Sagdicoglu, C AG; Oezgoekce, F (Food Chem, 2007)