Table 3.

Median effective concentration of antiradical activity in methanolic plant extracts.

	DPPH Reduction Method		ABTS Reduction Method
Test Sample	EC50 (μg/mL)	SD (μg/mL)	EC50 (μg/mL)	SD (μg/mL)
Quercus canbyira	21.74	0.47	5.33	0.14
Turnera diffusa	23.97	0.68	10	0.3
Leucophyllum frutescens	51.14	0.91	27.05	0.58
Teucrium bicolor	53.52	2.13	16.9	0.47
Salvia texana	56.94	1.9	28.44	0.96
Salvia beateflora	92.1	1.93	25.42	0.39
Vitis vinifera	147.47	1.79	21.31	0.39
Jatropha dioica	> 250		> 150