Skip to main content

Table 2 Percent of DPPH free radical scavenging activity and antioxidant strength of A-(2-mercaptopropionyl) glycine (MPG), vitamin C (Vit- C), grape seed proanthocyanidin (GP), B. monnieri n-butanolic fraction (BM-ButFr) or standard butylated hydroxytoluene (BHT) against their respective concentrations

From: Synthetic and natural antioxidants attenuate cisplatin-induced vomiting

Concentration (μg/mL)

Percent inhibition (%)

BHT

MPG

Vit-C

GP

BM-ButFr

1

15.0 ± 0.7

20.0 ± 2.1

14.6 ± 1.5

36.4 ± 0.8

24.5 ± 0.7

10

24.4 ± 4.2

20.8 ± 1.8

15.7 ± 0.6

71.6 ± 0.7

20.9 ± 0.8

30

22.1 ± 1.4

19.4 ± 1.2

17.3 ± 1.5

82.6 ± 1.2

32.2 ± 2.4

50

22.8 ± 0.5

24.4 ± 1.0

21.2 ± 2.4

92.4 ± 0.1

46.5 ± 2.9

100

58.6 ± 3.8

94.0 ± 0.01

92.7 ± 0.7

92.4 ± 0.2

90.9 ± 0.5

200

89.7 ± 2.4

96.2 ± 0.2

96.0 ± 0.3

91.6 ± 0.3

90.7 ± 0.3

500

93.8 ± 0.1

96.0 ± 0.7

96.7 ± 0.2

89.6 ± 0.2

89.9 ± 0.4

Antioxidant strength

 EC50 (μg/mL)

98.17 ± 3.842

67.66 ± 3.095

69.42 ± 3.027

6.498 ± 0.630

55.61 ± 1.137

 Antiradical power

0.0102 ± 0.0004

0.0148 ± 0.0007

0.0143 ± 0.0005

0.1567 ± 0.0145

0.0159 ± 0.0010

 Stoichiometry

196.3 ± 7.685

135.3 ± 6.191

138.8 ± 6.053

13.00 ± 1.261

111.2 ± 2.274

  1. Values are expressed as mean ± S.E.M from three separate experiments