3.2.2. DPPH scavenging activity Standard Rutin S.No. Concentration (µg/ml) % Inhibition 1. 20µg/ml 50.412 2. 40µg/ml 52.884 3. 60µg/ml 55.494 4. 80µg/ml 60.027 5. 100µg/ml 65.109 IC50(µg/ml) 22.85 64