. 2022 Jun 30;11(13):1737. doi: 10.3390/plants11131737

Table 3.

Antioxidant activity of free PA-E and nanoencapsulated formulations obtained from U. tomentosa leaves.

	IC₅₀ (µg/mL) ^1,2
	Ethanol ³	Water ³	F-1 ^3,4	F-2 ^3,4
PA-E	13.6 ^a ± 0.1	41.2 ^b ± 2.0	13.5 ^a ± 0.1	12.5^a ± 0.8

¹ IC50 µg/mL of sample. ² Values are expressed as mean ± standard deviation (S.D.). ³ Different superscript letters in the same column indicate differences are significant at p < 0.05 using one-way analysis of variance (ANOVA) with a Tukey post hoc. ⁴ Samples of nanoparticles for the evaluation of antioxidant activity were prepared in water.