Antioxidant and Anti-Inflammatory Activity Determination of One Hundred Kinds of Pure Chemical Compounds Using Offline and Online Screening HPLC Assay

Table 2

Antioxidant activity of 17 compounds with offline DPPH and ABTS IC₅₀ assay.

Number	Name	Radical- scavenging IC50
		(g/mL)
		DPPH	ABTS
1	(+)-Catechin hydrate	5.25 ± 0.31	3.12 ± 0.51
2	Calycosin	61.88 ± 1.19	33.21 ± 3.59
3	Caffeic acid	4.50 ± 0.30	1.59 ± 0.06
4	Curcumin	8.89 ± 0.24	4.99 ± 0.45
5	Eugenol	5.22 ± 0.25	3.22 ± 0.45
6	Ferulic acid	9.49 ± 0.21	1.99 ± 0.12
7	Gallic acid hydrate	1.56 ± 0.38	1.03 ± 0.25
8	Hyperoside	5.44 ± 0.36	3.54 ± 0.39
9	Kaempferol	7.78 ± 0.30	3.70 ± 0.15
10	Magnolol	85.57 ± 1.40	8.37 ± 0.56
11	Quercetin	2.66 ± 0.24	1.89 ± 0.33
12	Quercetin 3--D-glucoside	7.05 ± 0.59	3.59 ± 0.89
13	Quercitrin hydrate	7.55 ± 0.77	4.23 ± 0.84
14	Rutin hydrate	9.72 ± 1.06	4.68 ± 1.24
15	Sinapic acid	8.26 ± 0.41	5.36 ± 0.85
16	Vanillylacetone	5.69 ± 0.00	3.45 ± 0.05
17	Ascorbic acid (Vitamin C)	3.65 ± 0.23	2.65 ± 0.46