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In vitro anti-oxidant studies on ethanolic extracts of leaves and stems of nyctanthes arbor-tristis. l (night-flowering jasmine)

Authors:Narendhirakannan Ramasamy Thangavelu, Smeera Thomas
Int J Biol Med Res. 2010; 1(4): 188-192  |  PDF File


Under most pathological conditions there is generation of reactive oxygen species and other free radicals. An increase in the antioxidant reserves of the organism can reduce oxidative stress and some of the plant derived agents may help to reduce it. Nyctanthes arbor-tristis leaf extracts are extensively used in Indian traditional medicine. In the present study we have examined the in vitro antioxidant activity of leaves and stem of the plant. The antioxidant activities of different concentrations of ethanol extracts of NAT-L and NAT-S were determined by DPPH radical scavenging assay, Reducing power ability, Hydrogen peroxide scavenging assay and Total antioxidant assay. The effective antioxidant activity of NAT-S and NAT-L has found increased with increasing concentration. Comparing NAT-S, there was an increased activity found in NAT-L extract. The results obtained in the present study indicate that the leaves and stem of Nyctanthes arbor-tristis are a potential source of natural antioxidants.