Antioxidant Activities of Different Solvents Extracts from Apple Peels

To explore the antioxidant activities of different solvent extracts from apple peels.The extracts of the antioxidants from apple peels were extracted with distilled water,60% ethanol,anhydrous ethanol and ethyl acetate,respectively.Using Vc as a positive control,antioxidant activities of the extracts were tested and compared by hydroxyl radicals(.OH) scavenging activity,superoxide radical(O2-.) scavenging activity,nitrite radical(NO2-) scavenging activity and reducing power,and the total phenols contents of the extracts were also determined by the Folin-Ciocalteu method.The contents of total phenols from the 60% ethanol extract were significantly higher than those in the other three extracts.All the four extracts exhibited antioxidant capacities in a significant dosage-dependent manner.The 60% ethanol extract had the strongest antioxidant activities,the scavenging capacity to.OH and O2-.of 60% ethanol extracts were weaker than Vc,but the scavenging capacity to O2-and the reducing power were stronger than Vc.The antioxidant substances from apple peels were main in the 60% ethanol extract.