Table 1.

Plant extracts used in this study and their antioxidant activity as determined by results of the 2,2-diphenyl-1-picrylhydrazyl (DPPH), ferric reduction activity potential (FRAP) and total phenolics content (TPC) assays.

Extract No.	Plant	Part	Extract	DPPH 1	FRAP 1	TPC 2
1	Apama tricornutum	Leaf	EtOH	2740	1617	59.6
2			EtAc	≥4000	≥4000	37.2
3			Hex	≥4000	≥4000	9.0
4		Bark	EtOH	≥4000	1842	58.0
5			EtAc	≥4000	2394	33.8
6			Hex	≥4000	≥4000	11.5
7	Dysoxylum dumosum King	Leaf	EtOH	476	337	182.7
8			EtAc	≥4000	≥4000	5.0
9		Bark	EtOH	556	580	134.1
10			EtAc	≥4000	≥4000	40.3
11			Hex	≥4000	≥4000	7.7
12	Alternanthera sessilis	Whole	EtOH	≥4000	≥4000	41.9
13			EtAc	≥4000	≥4000	33.1
14			Hex	≥4000	≥4000	7.4
15	Borreria latifolia	Whole	EtOH	≥4000	≥4000	37.8
16			EtAc	≥4000	≥4000	37.4
17			Hex	≥4000	≥4000	8.8
18	Eclipta alba	Whole	EtOH	3699	≥4000	37.7
19			EtAc	≥4000	≥4000	33.9
20			Hex	≥4000	≥4000	10.7
21	Calotropis gigantea	Whole	EtOH	≥4000	≥4000	35.5
22			EtAc	3674	1430	72.7
23			Hex	≥4000	≥4000	2.4
24	Acalypha wilkesiana	Whole	EtOH	52.2	270	421.5
25			EtAc	47.6	310	474.6
26			Hex	2170	≥4000	12.5
27	Borreria articularis	Whole	EtOH	≥4000	2562	39.4
28			EtAc	≥4000	3288	33.9
29			Hex	≥4000	≥4000	3.7
30	Euphorbia hirta	Whole	EtOH	≥4000	3918	39.2
31			EtAc	≥4000	≥4000	19.6
32			Hex	≥4000	≥4000	13.1
33	Gluta wallichii	Whole	EtOH	736	1110	134.6
34			EtAc	≥4000	≥4000	47.0
35			Hex	≥4000	≥4000	25.3
36	Derris dalbergioides	Whole	EtOH	115	339	202.0
37			EtAc	893	2293	66.8
38			Hex	≥4000	≥4000	17.3
39	Gnetum gnemon	Whole	EtOH	3315	2731	108.3
40			EtAc	3787	2783	185.9
41			Hex	≥4000	≥4000	9.2
42	Polyalthia hypoleuca	Whole	EtOH	661	1546	70.7
43			EtAc	2609	2774	53.2
44			Hex	≥4000	≥4000	19.0
45	Sida acuta	Whole	EtOH	531	800	113.1
46			EtAc	1897	2600	67.6
47			Hex	≥4000	≥4000	17.8
48	Pseudo-uvaria macrophylla (Oliv.) Merr.	Whole	EtOH	431	1260	91.9
49			EtAc	≥4000	≥4000	30.1
50			Hex	≥4000	≥4000	14.3
51	Berberis thunbergii	Whole	EtOH	≥4000	2553	78.5
52			EtAc	≥4000	≥4000	36.9
53			Hex	≥4000	≥4000	13.6
54	Ipomoea quamoclit	Whole	EtOH	3460	≥4000	24.1
55			EtAc	3210	≥4000	42.3
56	Oldenlandia corymbosa L.	Whole	EtOH	3740	≥4000	35.6
57			EtAc	≥4000	≥4000	15.3
58			Hex	≥4000	≥4000	8.6
59	Bidens pilosa L.	Whole	EtOH	720	730	83.4
60			EtAc	900	900	105.0
61	Justicia betonica L.	Whole	EtOH	≥4000	3040	28.6
62			EtAc	≥4000	≥4000	40.1
63			Hex	≥4000	≥4000	6.5
64	Clerodendrum paniculatum	Whole	EtOH	1720	2300	71.7
65			EtAc	3190	≥4000	34.5
66			Hex	≥4000	≥4000	6.1
67	Ardisia punctata Jack	Whole	EtOH	710	810	101.7
68			EtAc	1310	3130	83.8
69			Hex	2460	≥4000	78.0
70	Clerodendron nutans Jack	Whole	EtOH	1000	1040	67.1
71			EtAc	1320	1990	56.4
72			Hex	≥4000	≥4000	9.2
73	Marsypopetallum pallidum (Bl.) Kurz	Leaf	Water	420	710	128.3
74			EtOH	1530	1380	76.9
75			EtAc	≥4000	≥4000	19.2
76			Hex	≥4000	≥4000	16.7
77	Archidendron ellipticum	Leaf	EtOH	1310	1130	97.3
78			EtAc	1930	2420	60.0
79			Hex	≥4000	≥4000	8.6
80		Bark	EtOH	1970	2310	32.3
81			EtAc	≥4000	≥4000	25.0
82			Hex	≥4000	≥4000	9.8
83	Pipturus argenteus (Forst. f.)	Leaf	EtOH	340	940	119.2
84			EtAc	3520	≥4000	19.3
85			Hex	≥4000	≥4000	12.0
86		Bark	EtOH	540	550	174.6
87			EtAc	≥4000	≥4000	28.7
88			Hex	≥4000	≥4000	6.4
89	Duabanga grandiflora	Leaf	Water	140	210	251.9
90			EtOH	50.0	110	476.8
91			EtAc	150	280	192.3
92			Hex	≥4000	≥4000	10.4
93		Bark	Water	130	260	363.7
94			EtOH	80.0	210	404.6
95			EtAc	240	570	135.4
96			Hex	≥4000	≥4000	18.9
	Quercetin			59.8 ± 0.75 3	49.9 ± 1.02 3	N/A

¹ Activity measured as EC₅₀ (μg/mL) for DPPH assay or FE (μg/mL) for FRAP assay.

² Content measured as μg quercetin equivalents per mg of extract.

³ Mean ± SEM (n = 5–6).