6Siddhuraju P,Mohan P S,Becker K.Studies on the anti-oxidant activity of Indian Laburnum (Cassia fistula L):a preliminary assessment of crude extracts from stem bark,leaves,flowers and fruitpulp[J].Food Chem,2002,79(1):61-67.
7Aruoma OI.Nutrition and health aspects of free radicals and antioxidants[J].Food ChemToxic,1994,32(7):671-68.