. 2024 May 31;10(11):e32222. doi: 10.1016/j.heliyon.2024.e32222

Table 2.

DPPH free radical scavenging activity of acidified ethanol extract for Pomegranate peels (Punica granatum L.), Chili pepper fruit (Capsicum annuum L.) and Bougainvillea (Bougainvillea spectabilis L.) flowers at different concentrations.

Concentration (μg/mL)	% Inhibition
Concentration (μg/mL)	Punica granatum	Capsicum annuum	Bougainvillea spectabilis
50	33.00 ± 0.82^e	16.06 ± 0.71 ^d	25.70 ± 0.56^e
100	49.11 ± 63 ^d	18.36 ± 0.63^c	31.24 ± 0.76 ^d
200	60.14 ± 0.52^c	19.47 ± 0.91^c	36.57 ± 0.64^c
500	70.35 ± 0.56 ^b	22.21 ± 0.64 ^b	47.67 ± 0.85 ^b
1000	82.11 ± 0.42^a	25.70 ± 0.56^a	58.09 ± 0.45^a

Different letters represent significant differences (Duncan's test significant difference test at p < 0.05 among all treatments). Values are showen as the mean ± SE (n = 3).