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

Table 3.

IC₅₀ value (in µg/mL of flavonoids) 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	1.00 ^b ± 0.03	2.97 ^b ± 0.09	14.77 ^c ± 0.05
ethanolic	2.63 ^c ± 0.29	0.71 ^a ± 0.03	2.08 ^b ± 0.93
glycolic-aqueous	0.38 ^a ± 0.23	0.56 ^a ± 0.29	13.17 ^b ± 0.03

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