Antioxidant Activity of Ethanol and n-hexane Extracts of Javanese Bark (Lannea coromandelica) Using the DPPH Method

Javanese bark (Lannea coromandelica) contains secondary metabolites of saponins, tannins, phenolics, and flavonoids. Flavonoids include aromatic compounds that are antioxidants. Antioxidants can inhibit the oxidation process arises due to free radical reactions form unreactive compounds. The active flavonoid in counteracting radicals determined by presence –OH (hydroxy) functional group. Flavonoid have antioxidant properties catechins, flavones, flavanones, flavonols, chalcones, isoflavones. This study aims determine activity ethanol extract n-hexane Javan using DPPH method. method used is UV-VIS spectrophotometry. Ethanol has an IC50 3.996 mg/L a strong while N-Hexan obtained 2193.043 mg/L. weak antioxidants