Evaluation of the antioxidative properties of different Fractions of Ethanol extract of Jatropha tangorensis

The antioxidant potential of crude ethanolic as well as ethyl acetate and n-hexane soluble fractions of Jatropha tanjorensis which is widely used in indigenous system of medicinal for different purposes were studied. The antioxidant potential of extract different Fractions were evaluated using different in vitro antioxidant models which includes Ascorbic acid, Beta carotene, flavoniods, total phenols, ABTS, H202, FRAP and reducing power. The estimation of the crude extract showed ascorbic acid (93.51mg/kg), beta carotene (10.564mg/kg), flavoniods (7.88mg/kg), total phenols (64.03mg/kg), ABTS (64.21%), H2O2 (6.39%), FRAP (0.221µmol/ml) and Reducing power (2.913µmol/ml). That of ethyl acetate fraction and n-hexane fractions for Ascorbic acid, beta carotene, flavoniods, Total phenols, ABTS, H202, FRAP and reducing power are as; 227.8mg/kg, 9.21mg/kg, 0.59mg/kg, 33.94mg/kg, 96.47%, 2.5%, 1.1911 µmol/ml, 4.500µmol/ml and 228.7mg/kg, 9.21mg/kg, 0.59mg/kg, 33.94mg/kg, 98.93%, 2.32%, 1.578µmol/ml, 4.456µmol/ml respectively. However, the result of this Study reveals the plant contains some appreciable amount of the antioxidant models analyzed which is vital to illnesses associated with oxidative stress thereby revealing that the plant is a good source of natural antioxidant.