In vitro screening antiviral activity of Thai medicinal plants against porcine reproductive and respiratory syndrome virus

Table 1 Total phenolic contents and antioxidant activities of seven Thai medicinal plant extracts

	Total phenolic (mM GAE/g)	DPPH (IC₅₀, mg/ml)	ABTS (IC₅₀, mg/ml)	FRAP (mM Fe²⁺/g)
Caesalpinia sappan	220.52 ± 4.47	1.17 ± 0.06	2.57 ± 0.16	334.78 ± 13.15
Garcinia mangostana	91.16 ± 4.62	4.82 ± 0.58	4.98 ± 0.10	46.12 ± 1.27
Houttuynia cordata	14.25 ± 0.20	97.79 ± 4.14	72.02 ± 4.01	8.55 ± 0.18
Perilla frutescens	29.86 ± 0.41	11.68 ± 0.51	21.37 ± 1.28	43.32 ± 0.92
Clinacanthus nutans	25.52 ± 0.22	50.34 ± 5.60	37.82 ± 1.25	18.39 ± 0.54
Phyllanthus emblica	44.35 ± 0.24	3.49 ± 0.17	4.95 ± 0.11	94.17 ± 0.62
Tiliacora triandra	30.45 ± 1.51	17.77 ± 0.22	21.16 ± 1.06	30.58 ± 1.13

DPPH 2,2-diphenyl-1-picrylhydrazyl, ABTS 2,2-azino-bis (3-ethylbenzothiazo-line-6-sulfonic acid) diammonium salt, FRAP ferric reducing antioxidant power, GAE gallic acid equivalents, IC₅₀ half maximal inhibitory concentration

ISSN: 1746-6148