Aktivitas Antioksidan Ekstrak Fenol Daun Gayam (Inocarpus fagiferus Fosb)

This study aims to determine the total phenolic content and antioxidant activity in gayam leaf extract (Incarpusfagiferus Fobs). The research method used is a quasi-experiment that aims to predict the situation to be achievedthrough actual experiments but no treatment. The sample used is old gayam leaves, with the characteristic of darkgreen leaf and rough leaf surface. The process of preparing simplicia, ie preparing fresh gayam leaves, dried in anoven temperature 45-50oC, and then dried to produce gayam leaf powder. Samples were extracted with methanolsolvent and ethanol for 5 days. The total phenol assay method uses Folin-Ciocalteau method and antioxidant activitytest using DPPH free radical retardation method (1,1-diphenyl-2-picrylhydrazyl). The results showed that the totalphenolic content of gayam leaf extract with ethanol and methanol solvent was 313,704 GAE (Gallic Acid Equivalent)and 273,913 GAE, respectively. Antioxidant activity as a free antidote to free radical DPPH is known to be valuedwith IC50 (inhibitory concentration).