Figure 4From: Bioprotective properties of Dragon's blood resin: In vitro evaluation of antioxidant activity and antimicrobial activity Superoxide radical scavenging activity. Effect of Dragon's blood resin extracts and standards ascorbic acid, trolox on superoxide scavenging assay. The percentage of scavenging was plotted against concentration of samples. **P < 0.0001 vs 0 μg/ml.Back to article page