Table 3.

The activity of the selected plant extracts and positive controls against DPPH radical, presented as means of percentage of inhibition ± standard errors.

DPPH (% of inhibition)
		Concentration (mg/mL)
Species	Extract	0.1	0.25	0.5
Om	Methanolic	32.66 ± 0.83	58.82 ± 0.71	93.55 ± 0.43
	Ethanolic	32.29 ± 0.36	87.77 ± 1.42	95.02 ± 0.09
	Aqueous	25.46 ± 1.35	35.97 ± 1.56	92.58 ± 0.25
Ov	Methanolic	40.16 ± 0.62	73.23 ± 2.15	94.48 ± 0.48
	Ethanolic	51.84 ± 0.59	92.16 ± 0.17	95.37 ± 0.25
	Aqueous	42.38 ± 1.19	81.22 ± 2.34	93.47 ± 0.14
Tc	Methanolic	33.74 ± 1.22	55.13 ± 2.53	95.25 ± 0.09
	Ethanolic	35.09 ± 0.52	61.27 ± 0.66	95.25 ± 0.09
	Aqueous	26.38 ± 0.84	44.31 ± 1.54	93.86 ± 0.09
Tm	Methanolic	30.29 ± 0.61	68.82 ± 0.85	95.29 ± 0.05
	Ethanolic	27.66 ± 0.44	56.18 ± 0.35	94.17 ± 0.24
	Aqueous	21.07 ± 1.51	22.55 ± 1.24	89.73 ± 0.46
Ts	Methanolic	31.54 ± 1.68	60.63 ± 0.79	94.63 ± 0.24
	Ethanolic	34.95 ± 1.46	68.63 ± 0.58	94.75 ± 0.30
	Aqueous	27.39 ± 2.00	43.82 ± 0.88	92.55 ± 0.30
Tv	Methanolic	32.56 ± 0.25	53.81 ± 0.68	94.40 ± 0.11
	Ethanolic	33.33 ± 0.44	66.55 ± 0.86	94.59 ± 0.05
	Aqueous	28.03 ± 1.00	40.65 ± 0.82	92.08 ± 0.22
BHA		36.20 ± 0.66	55.43 ± 1.38	75.43 ± 1.16
BHT		32.73 ± 0.60	52.01 ± 0.53	71.90 ± 1.86
Ascorbic acid		89.42 ± 0.17	too high	too high

Values are presented as means ± standard errors (n = 3). For each tested species, mean values without superscript letters within column are not significantly different (one-way ANOVA, Tukey's post hoc; p < 0.05).