. 2021 Aug 28;9(10):5755–5764. doi: 10.1002/fsn3.2544

TABLE 3.

Antioxidant activity of O. mutabilis ¹ by using different assays

Assay	phosphomolybdenum assay ²	DPPH scavenging ²	ABTS scavenging ²	FRAP reducing ³	CUPRAC reducing ³
Methanol	1.45 ± 0.05^b	3.54 ± 0.064^a	2.33 ± 0.045^a	1.12 ± 0.023^b	1.62 ± 0.079^a
Water	2.14 ± 0.09^c	4.27 ± 0.021^a	3.61 ± 0.23^a	1.34 ± 0.08^c	1.86 ± 0.03^a
Ethyl acetate	3.91 ± 0.26^d	54.23 ± 4.33^b	24.86 ± 0.78^b	2.75 ± 0.05^d	3.06 ± 0.09^b
Trolox	1.03 ± 0.02^a	0.25 ± 0.02^a	0.29 ± 0.02^a	0.1 ± 0.01^a	0.28 ± 0.02^a
EDTA ⁵	NF ⁶	NF	NF	NF	NF

^¹

The values indicated by different superscripts within the same column are not different according to the Tukey's honestly significant difference post hoc test at 5% significance level.

^²

IC₅₀ (mg/ml), inhibition concentration at which 50% of the DPPH (2,2‐Diphenyl‐1‐picrylhydrazyl) and ABTS (2,2′‐azino‐bis‐3‐ethylbenzthiazoline‐6‐sulphonic acid) radicals were scavenged and the ferrous ion–ferrozine complex were inhibited.

^³

EC50 (mg/ml): Effective concentration at which the absorbance was 0.5 for CUPRAC (Cupric ion reducing antioxidant capacity) and FRAP (Ferric reducing antioxidant power) assays.

^⁵

EDTA: Ethylenediaminetetraacetic acid (disodium salt).

^⁶

nf: Not found.