Table 2.

Total phenolic content and DPPH free radical scavenging activity (EC₅₀ (μg/ml)) of 31 methanol plant extracts of 31 different plant species

Plant species #	Total phenolics mg GAE/ g of extract	Antioxidant activity EC50 (μg/ml)	Percentage extract yield g/100 g dry material
1	8.56 ± 1.75	2.48 ± 1.11	21.68
2	7.66 ± 0.88	1.94 ± 0.44	22.10
3	7.43 ± 0.46	1.97 ± 0.24	26.89
4	7.03 ± 1.21	3.88 ± 0.64	30.15
5	9.21 ± 0.233	1.81 ± 0.40	30.62
6	14.58 ± 4.09	1.52 ± 0.30	13.86
7	11.40 ± 1.67	1.87 ± 0.08	26.37
8	8.75 ± 0.81	1.20 ± 0.22	13.67
9	10.61 ± 3.07	1.76 ± 0.28	17.35
10	10.39 ± 0.74	1.93 ± 0.86	9.33
11	9.43 ± 0.95	2.81 ± 1.10	17.14
12	6.53 ± 0.59	8.36 ± 1.37	16.41
13	8.71 ± 1.34	1.61 ± 0.27	14.20
14	8.32 ± 3.03	3.88 ± 0.64	23.95
15	13.61 ± 7.47	1.52 ± 0.59	15.10
16	17.66 ± 3.00	1.30 ± 0.10	23.55
17	8.73 ± 2.80	1.54 ± 0.52	36.60
18	18.54 ± 1.43	1.58 ± 0.54	29.53
19	8.51 ± 3.30	4.02 ± 0.43	26.64
20	8.40 ± 1.12	8.18 ± 0.72	32.14
21	16.35 ± 1.97	1.62 ± 0.21	25.65
22	6.73 ± 1.86	8.69 ± 0.03	28.16
23	8.04 ± 2.64	3.38 ± 0.08	16.04
24	7.93 ± 1.26	8.23 ± 0.84	30.02
25	18.65 ± 3.86	4.20 ± 3.39	20.42
26	16.08 ± 1.93	1.62 ± 0.01	25.18
27	15.60 ± 2.06	1.45 ± 0.64	35.49
28	10.32 ± 4.24	1.48 ± 0.30	43.45
29	7.64 ± 0.25	3.25 ± 2.15	37.85
30	12.35 ± 0.40	12.14 ± 1.11	24.19
31	5.17 ± 0.97	19.07 ± 1.50	22.10
Ascorbic acid	-	2.28 ± 0.02