Table 2.

DPPH free radical scavenging activities of selected wild edible plants.

Species	Concentration (µg/mL)	% of Inhibition
Amaranthus hybridus (Grain)	20	2.74 ± 0.10
	40	12.92 ± 0.24
	80	14.25 ± 0.15
	120	24.63 ± 0.12
	160	33.59 ± 0.22
	200	52.31 ± 0.34
Amaranthus hybridus (Leaf)	20	29.03 ± 0.16
	40	55.82 ± 0.34
	80	89.00 ± 0.26
	120	89.11 ± 0.12
	160	91.94 ± 0.11
	200	92.89 ± 0.22
Erucastrum abyssinicum (Leaf)	20	14.10 ± 0.27
	40	18.76 ± 0.13
	80	36.78 ± 0.25
	120	69.78 ± 0.11
	160	82.97± 0.18
	200	84.99 ± 0.21
Erucastrum arabicum (Leaf)	20	1.61 ± 0.23
	40	5.65 ± 0.14
	80	29.10 ± 0.23
	120	36.63 ± 0.42
	160	51.11 ± 0.31
	200	83.02 ± 0.20
Haplocarpha rueppelii (Leaf)	20	40.05 ± 0.16
	40	42.27 ± 0.29
	80	70.25 ± 0.14
	120	85.12 ± 0.10
	160	89.00 ± 0.22
	200	92.96 ± 0.13
Haplocarpha schimperi (Leaf)	20	25.93 ± 0.21
	40	44.26 ± 0.24
	80	53.05 ± 0.38
	120	83.70 ± 0.33
	160	88.37 ± 0.11
	200	88.69 ± 0.43
Rumex nervosus (Young shoot)	20	39.50 ± 0.28
	40	42.30 ± 0.12
	80	69.40 ± 0.36
	120	73.45 ± 0.10
	160	81.19 ± 0.16
	200	97.30 ± 0.13
Urtica simensis (Leaf)	20	15.65 ± 0.22
	40	19.06 ± 0.13
	80	29.46 ± 0.43
	120	35.80 ± 0.15
	160	45.40 ± 0.22
	200	62.25 ± 0.17
Ascorbic acid standard	20	25.98 ± 0.11
	40	45.40 ± 0.20
	80	89.22 ± 0.16
	120	96.87 ± 0.13
	160	97.64 ± 0.23
	200	97.68 ± 0.29