Concentration (mg/mL)

Percentage inhibition (%)

Ascorbic acid

CME

EEF

0.10

65.0 ± 0.500

53.5 ± 0.500

26.4 ± 0.549

0.25

69.7 ± 0.577

58.7 ± 0.764

27 .8 ± 0.608

0.50

73.2 ± 0.764

62.3 ± 0.577

31.5 ± 0.516

1.00

74.5 ± 0.500

64.7 ± 0.289

35.2 ± 0.435

5.00

94.0 ± 0.685

82.1 ± 0.582

25.0 ± 0.575