. 2015 Mar 27;20(4):5468–5486. doi: 10.3390/molecules20045468

Table 2.

IC₅₀ value (in µg/mL of total phenols) for antiradical activity against DPPH^•, ABTS^•+ and ability to chelate Fe²⁺ ions determined for each Stevia leaves extracts.

Stevia Leaves Extracts	DPPH^•	ABTS^•+	Fe²⁺
Stevia Leaves Extracts	IC₅₀ (µg/mL)
aqueous	3.46 ^b ± 0.01	10.16 ^c ± 0.28	50.24 ^b ± 0.67
ethanolic	4.73 ^c ± 0.53	1.34 ^a ± 0.05	3.16 ^a ± 1.47
glycol-aqueous	1.99 ^a ± 0.18	3.19 ^b ± 0.89	57.42 ^c ± 0.22

Notes: legends: one-way ANOVA, different small letters a–c in the same column indicate significant difference by Tukey test (α = 0.05).