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Table 3 The R values between chemical contents and 1/IC 50

From: Antioxidant activity and mechanism of Rhizoma Cimicifugae

  Total phenolics Caffeic acid Ferulic acid Isoferulic acid Total sugars Total saponins
Anti-LPO 0.99 0.98 0.96 0.95 −0.69 −0.001
DNA 0.61 0.38 0.37 0.40 −0.11 −0.35
·OH 0.57 0.37 0.34 0.47 0.11 −0.68
·O2- 0.36 0.38 0.33 0.53 −0.53 0.14
Chelating 0.17 0.31 0.31 0.21 −0.88 0.94
DPPH· 0.43 0.39 0.35 0.35 0.46 −0.92
ABTS·+ 0.57 0.54 0.61 0.49 0.30 −0.84
Reducing 0.82 0.65 0.68 0.68 −0.26 −0.39
Average 0.56 0.51 0.50 0.51 −0.20 −0.26
  1. R, correlation coefficient; 1/IC50: the unit is mL/μg, all 1/IC50 values are listed in Additional file 2. LPO, lipid peroxidation.