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Table 1 DPPH radical scavenging activity of the alcoholic and aqueous extracts of Z. mucronata subsp. mucronata

From: Phenolic content and antioxidant property of the bark extracts of Ziziphus mucronata Willd. subsp. mucronata Willd

 

% inhibitions of ABTS + ± SD at different concentrations of the extracts

 

Extracts

0.02 (mg/ml)

0.04 (mg/ml)

0.06 (mg/ml)

0.08 (mg/ml)

0.1 (mg/ml)

IC50 (mg/ml)

Aqueous

9.87 ± 0.02a

21.86 ± 0.02b

46.26 ± 0.02c

62.18 ± 0.02d

70.34 ± 0.02e

0.0646 ± 0.02

Acetone

32.67 ± 0.02a

39.35 ± 0.03b

64.49 ± 0.02c

82.53 ± 0.03d

88.15 ± 0.02e

0.0482 ± 0.02

Ethanol

34.35 ± 0.02a

47.55 ± 0.03b

71.04 ± 0.02c

85.06 ± 0.01d

94.47 ± 0.02e

0.0422 ± 0.03

BHT

37.36 ± 0.02a

48.50 ± 0.03b

74.52 ± 0.01c

92.56 ± 0.03d

98.47 ± 0.02e

0.0406 ± 0.02

Vitamin C

23.88 ± 0.01a

47.65 ± 0.02b

73.89 ± 0.03c

90.94 ± 0.01d

93.01 ± 0.03e

0.0411 ± 0.02

  1. Data are presented as means ± standard deviation of three replicate with significant increases from all samples tested.
  2. Superscript a, b, c, d and e showed that means ± standard deviation in the same row with different superscript are significantly different (p < 0.05)