Figure 3From: Chemical characterization and assessment of antioxidant potentiality of Streptocaulon sylvestre Wight, an endangered plant of sub-Himalayan plains of West Bengal and SikkimAntioxidant activity ofS. sylvestre. (A) DPPH radical scavenging activity; (B) Hydroxyl radical scavenging activity; (C) Superoxide radical scavenging activity; (D) Nitric oxide scavenging activity. ***p < 0.001 vs 0 μg/ml.Back to article page