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Table 2 Total antioxidant capacities of various solvent fractions of the ethanol extract of Prunella vulgaris var. lilacina

From: In vitro antioxidant and anticancer effects of solvent fractions from prunella vulgaris var. lilacina

Solvent

DPPH RH50 1) (ug/ml)

FRAP value2) (m M/g)

ABTS RC50 3) (ug/ml)

SOD activity4) (%)

70% ethanol

73.05 ± 10.3c

1.07 ± 0.08ab

60.08 ± 3.19

87.74 ± 3.42

Hexane

1402.96 ± 194a

0.48 ± 0.09c

1469.12 ± 10.1a

23.80 ± 0.53

Butanol

83.52 ± 7.01c

0.95 ± 0.09bc

61.13 ± 4.23c

92.54 ± 0.32

Chloroform

521.58 ± 8.10b

0.65 ± 0.02bc

153.04 ± 0.58b

72.75 ± 3.91

Water

64.26 ± 2.22c

1.24 ± 0.12a

53.78 ± 2.60c

87.51 ± 3.20

a-tocoperol

12.82 ± 1.33

15.0 ± 26

7.54 ± 0.13

99.64 ± 2.45

  1. 1)Concentration of test sample required to produce 50% inhibition of the DPPH radical.
  2. 2)Expressed as mmol of Fe2+ equivalents per gram of dry plant weight.
  3. 3)Concentration of test sample required to produce 50% inhibition of ABTS radical.
  4. 4)Expressed as the superoxide inhibition rate of Prunella vulgaris var. lilacina ethanol extract and its fractions.
  5. Values are mean ± SEM. Values with different superscripts within same column are significantly different (p < 0.05).