Research Article

Determination of the Chemical Composition, Antioxidant, and Enzyme Inhibitory Activity of Onosma mollis DC

Table 3

Antioxidant activity of O. mollis extracts.

Antioxidant activityEtOAcMeOHWaterTroloxEDTA

Phosphomolybdenum(EC50: mg/ml)3.31 ± 0.03c2.01 ± 0.22b3.28 ± 0.14c1.05 ± 0.02a
(mg TEs/g extracts)315.25 ± 3.33b521.22 ± 56.20a317.31 ± 13.31b

DPPH scavenging(IC50: mg/ml)95.732.55c3.33 ± 0.07ab5.78 ± 0.45b0.29 ± 0.01a
(mg TEs/g extracts)2.97 ± 0.07c77.66 ± 1.72a45.09 ± 3.43b

ABTS scavenging(IC50: mg/ml)>20.00c2.30 ± 0.06b2.75 ± 0.28b0.26 ± 0.03a
(mg TEs/g extracts)5.24 ± 0.06b117.79 ± 2.92a98.97 ± 10.08a

CUPRAC reducing(EC50: mg/ml)3.96 ± 0.08d1.48 ± 0.01b2.30 ± 0.14c0.24 ± 0.01a
(mg TEs/g extracts)67.93 ± 1.34c182.03 ± 0.19a117.03 ± 7.09b

FRAP reducing(EC50: mg/ml)2.61 ± 0.10d0.79 ± 0.01b1.44 ± 0.06c0.10 ± 0.01a
(mg TEs/g extracts)38.22 ± 1.48c125.80 ± 0.14a69.12 ± 2.89b

Ferrous ion chelating(IC50: mg/ml)2.58 ± 0.02c2.40 ± 0.18c1.01 ± 0.02b0.06 ± 0.004a
(mg EDTAEs/g extracts)21.11 ± 0.19b22.67 ± 1.71b53.72 ± 1.27a

TEs: trolox equivalent. EDTAEs: ethylene diamine tetra acetic acid (disodium salt) equivalent. The different superscripts within the same row are different statistically at a 5% significance level.