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Table 6 Correlations between the IC 50 values of antioxidant activities, phenolics and flavonoids content of Sonchus arvensis

From: Evaluation of flavonoids and diverse antioxidant activities of Sonchus arvensis

Assays (IC50μg/ml) Correlations R2
  Phenolics Flavonoids
DPPH 0.892 b 0.981 a
Reducing power 0.823 b 0.821b
Super oxide radical scavenging 0.670 c 0.723 c
Hydrogen peroxide scavenging assay 0.790b 0.694 c
Hydroxyl radical scavenging activity 0.303 0.206
ABTS+ radical scavenging assay 0.452 0.347
Total antioxidant activity 0.976 a 0.712 c
  1. Various fractions of Sonchus arvensis were used in the correlation. a, b, c indicate significance at P<0.05, P<0.01 and P<0.001 respectively.