Time

5 µg/ml

10 µg/ml

25 µg/ml

50 µg/ml

1 h

39.50 ± 1.15^b

57.51 ± 1.37^c

68.24 ± 1.06^d

69.66 ± 0.97^c

2 h

42.61 ± 1.17^ab

74.15 ± 1.29^b

85.14 ± 0.86^c

83.69 ± 0.88^b

4 h

44.91 ± 1.21^a

79.93 ± 1.29^a

92.95 ± 0.75^a

91.36 ± 0.71^a

8 h

44.86 ± 1.22^a

79.86 ± 1.31^a

90.69 ± 0.79^b

90.69 ± 0.73^a