Table 3 Antioxidant effect (IC ₅₀ ) of different fraction of D. roxburghiana

121.03 ± 1.5^b

56.46 ± 0.3^b

24.18 ± 0.6^b

17.94 ± 0.1^b

153.78 ± 0.2^b

77.38 ± 0.5^c

>250 ^d

>250^e

234.57 ± 0.3^f

46.25 ± 0.7^e

>250^e

>250^f

195.23 ± 0.4^c

112.71 ± 0.6^d

40.73 ± 0.2^d

32.56 ± 0.9^d

217.79 ± 0.6^d

136.61 ± 0.9^d

114.27 ± 1.2^b

73.18 ± 0.4^c

35.81 ± 0.4^c

23.62 ± 0.1^c

123.75 ± 0.2^b

88.59 ± 0.3^c

124.23 ± 1.1^b

106.24 ± 0.7^d

36.15 ± 0.5^c

40.87 ± 0.5^e

195.87 ± 0.3^c

205.81 ± 0.2^e

>250^d

>250 ^e

188.26 ± 0.9^e

67.24 ± 0.3^f

>250^e

>250^f

14.37 ± 0.9^a

26.81 ± 0.4^a

20.76 ± 0.3^a

6.87 ± 0.4^a

54.72 ± 0.3^a

29.18 ± 0.6^b