Compound Concentration ( μg mL-1)
25 50 75 100 IC50
4a 57.29± 0.84 60.16± 0.72 62.24± 0.63 63.42± 0.94 21.81± 1.30
4b
4c 63.40± 0.23 64.29± 0.19 65.19± 0.14 66.18± 0.78 19.71± 1.03
4d
4e 64.10± 0.64 65.20± 0.96 67.20±1.08 69.14± 0.98 19.50± 0.64
4f 62.32± 0.07 66.28± 0.07 69.25± 0.03 70.24± 0.10 20.05± 0.02
4g 63.19± 0.10 65.26± 0.06 68.76± 0.89 71.24± 1.06 19.78± 0.18
4h 62.28± 0.28 63.16± 0.17 64.26± 0.44 69.14± 1.26 20.07± 1.03
4i 68.19± 0.06 69.14± 0.03 72.34± 0.06 76.14± 0.22 18.33± 0.09
4j 66.27± 0.30 68.16± 0.62 71.32± 0.12 74.29± 0.40 18.86± 0.97
Ascorbic acid 69.24± 0.23 72.16± 0.02 76.29± 0.21 78.31± 0.15 18.05± 0.05
Blank
(−) showed no scavenging activity. Values were the means of three replicates± SD
Table 3: The in vitro antioxidant activity (4a–j) in NO method.