Table 2.

Antioxidant activities of aqueous extracts of young and mature sacha inchi leaves dried using freeze-drying and oven-drying processes.

Antioxidant Activities (µmol TE/g DW)	Sacha Inchi Leaves
	Young		Mature
	Freeze-Dried	Oven-Dried	Freeze-Dried	Oven-Dried
DPPH radical scavenging activity	0.049 ± 0.001 *	0.050 ± 0.001	0.049 ± 0.001	0.051 ± 0.002
FRAP activity	43.04 ± 3.51 †,*	48.26 ± 2.21 §	46.61 ± 3.87	45.70 ± 2.73
ORAC activity	131.58 ± 10.48 †,*	163.93 ± 15.20 §	162.20 ± 11.46 *	144.23 ± 17.34

All data are shown as mean ± standard deviation (SD) of triplicate experiments (n = 3). DW: dry weight; TE: Trolox equivalent; DPPH: 2,2–diphenyl–1–picrylhydrazyl; FRA: ferric ion reducing antioxidant power; ORAC: oxygen radical absorbance capacity; ^† and ^§ show significantly different activities determined by the same antioxidant assay of freeze-dried and oven-dried leaves, respectively, at different maturity stages at p < 0.05 using unpaired t-test; * indicates significantly different activities determined by the same antioxidant assay between freeze-dried and oven-dried leaves of the same maturity stage at p < 0.05 using unpaired t-test.