Abstract
This study is planned to determine the antioxidant activity and total phenols content of the essential oil and different solvent extracts of the endemic plant Merremia borneensis. The antioxidant activities of the extracts were examined by three different methods, DPPH, β-carotene and reducing power assays. In all methods, aqueous ethanol extract exhibited a higher activity potential than that of other extracts (hexane, chloroform, ethyl acetate and butanol) and the essential oil. As assumed, the amount of total phenolics was very high in this extract. Chloroform extract has been found to be rich in flavonoids. A positive result was observed between the antioxidant activity potential and total flavonoid levels of the extracts.
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