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. 2020 May 8;9(5):400. doi: 10.3390/antiox9050400

Table 3.

Antioxidant properties of the tested extracts.

Samples Methods DPPH (mg TE/g)x ABTS (mg TE/g)x CUPRAC (mg TE/g)x FRAP (mg TE/g)y PHBD (mmol TE/g)x Chelating Activity (mg EDTAE/g) y
Hot pepper Decoction 22.13 ± 0.86a 52.00 ± 0.12a 46.23 ± 0.31ab 34.38 ± 0.25a 1.5 3± 0.09a 4.47 ± 0.17bc
Soxhlet 15.08 ± 0.52abc 47.62 ± 0.33ab 36.26 ± 0.42abc 24.18 ± 0.22d 1.23 ± 0.08abc 19.25 ± 0.03a
Microwave 13.91 ± 0.35bcd 40.98 ± 0.52abcd 33.83 ± 0.18bcde 24.85 ± 0.38c 1.21 ± 0.04bcd 19.15 ± 0.37a
Hexan 2.01 ± 0.08cd 18.17 ± 0.90de 21.35 ± 0.28de 14.84 ± 0.05f 0.27 ± 0.02d NA
Sweet pepper Decoction 15.44 ± 0.55ab 38.01 ± 0.56cde 34.14 ± 0.10abcd 24.42 ± 0.24 1.21 ± 0.04bcd 4.93 ± 0.16bc
Soxhlet 16.65 ± 0.47ab 47.08 ± 0.16abc 47.15 ± 0.62a 31.60 ± 0.21b 1.25 ± 0.13ab 18.49 ± 0.04ab
Microwave 12.37 ± 0.46bcd 40.20 ± 0.51bcde 27.95 ± 0.24cde 18.74 ± 0.26e 0.94 ± 0.03bcd 18.05 ± 1.05abc
Hexan NA 5.17 ± 0.16e 16.21 ± 0.11e 7.81 ± 0.07g 0.38 ± 0.03cd NA

Values expressed as means ± SD of three parallel measurements; PHBD: phosphomolybdenum assay; TE: Trolox equivalent; EDTAE: EDTA equivalent; NA: not active. In same column, different superscripts (a–g) indicate significant differences in the tested extracts (p < 0.05). x Statistical evaluation by Kruskal–Wallis test. y Statistical evaluation by ANOVA test.