. 2021 Dec 10;29(2):680–688. doi: 10.1016/j.sjbs.2021.12.007

Table 4.

Free radicals scavenging activity of vitamin C and JIF-AgNPs at varied concentrations against various free radicals. Results were expressed as mean ± standard error of data from three repeats. Different superscripts indicate the results were significant based on Duncan’s method (p < 0.05).

Free Radical	Concentration	Vitamin C	JIF-AgNPs
DPPH	10 µg/mL	22.48 ± 0.03 ^f	16.60 ± 0.09 ^f
	20 µg/mL	42.62 ± 0.04 ^d	22.62 ± 0.10 ^d
	30 µg/mL	63.26 ± 0.04 ^c	48.62 ± 0.06 ^c
	40 µg/mL	76.48 ± 0.26 ^b	55.57 ± 0.07 ^b
	50 µg/mL	83.44 ± 0.01^a	66.73 ± 0.09 ^a
	IC₅₀	24 ± 0.02	32.5 ± 0.06

Hydroxyl	10 µg/mL	30.10 ± 0.05 ^f	13.25 ± 0.04 ^f
	20 µg/mL	50.13 ± 0.06 ^d	26.76 ± 0.07 ^d
	30 µg/mL	65.13 ± 0.08 ^c	47.57 ± 0.10 ^c
	40 µg/mL	84.28 ± 0.05 ^ab	60.51 ± 0.08 ^b
	50 µg/mL	89.62 ± 0.09 ^a	73.47 ± 0.03 ^a
	IC₅₀	19.5 ± 0.04	32.5 ± 0.09

Superoxide	10 µg/mL	25.60 ± 0.05 ^f	12.54 ± 0.20 ^f
	20 µg/mL	33.58 ± 0.06 ^d	25.42 ± 0.17 ^d
	30 µg/mL	59.16 ± 0.06 ^c	40.50 ± 0.25 ^bc
	40 µg/mL	84.79 ± 0.09 ^b	44.48 ± 0.18 ^b
	50 µg/mL	96.72 ± 0.11 ^a	70.53 ± 0.24 ^a
	IC₅₀	24.5 ± 0.03	42.5 ± 0.13

ABTs	10 µg/mL	27.70 ± 0.04 ^f	19.31 ± 0.15 ^f
	20 µg/mL	43.78 ± 0.10 ^d	33.70 ± 0.18 ^d
	30 µg/mL	61.44 ± 0.03 ^c	40.53 ± 0.21 ^c
	40 µg/mL	76.63 ± 0.08 ^b	72.55 ± 0.28 ^b
	50 µg/mL	89.51 ± 0.05 ^a	78.66 ± 0.14 ^a
	IC₅₀	22 ± 0.04	33.5 ± 0.15