Antioxidant Activity and Reactive Oxygen Species (ROS) Scavenging Mechanism of Eriodictyon californium, an Edible Herb of North America

Table 4

Hydrogen peroxide decomposition activity of E. californicum extract (ECE) and ascorbic acid (AA).

Concentration (mg/mL)	% H2O2 decomposition
	ECE	AA
0.001	09.94 ± 1.64	13.66 ± 0.92
0.005	20.73 ± 1.11	26.55 ± 0.54
0.010	34.18 ± 1.40	42.51 ± 0.63
0.020	41.76 ± 1.13	86.69 ± 1.77
0.050	60.45 ± 1.42	103.67 ± 3.51
IC50	0.033 mg/mL	0.012 mg/mL

Each value is expressed as mean ± standard deviation (n = 3); .