Table 5. Antioxidant potential of crude extracts and fractions by DPPH assay

Medicinal plant group	Medicinal plant	Extracts	DPPH50 (μg/ml)
Stimulate the in vitro PBMCs proliferation	Astragalus membranaceus	Ethanol	> 400
		Chloroform	91,94
		Ethyl acetat	87,07
		Water	> 400
	Glycyrrhiza glabra L	Ethanol	361.46
		Chloroform	57.92
		Ethyl acetat	56.22
		Water	> 400
Inhibit the in vitro PBMCs proliferation	Wedelia chinensis	Ethanol	> 400
		Chloroform	21.76
		Ethyl acetat	> 400
		Water	> 400
	Caesalpinia sappan L	Ethanol	14.59
		Chloroform	16.19
		Ethyl acetat	11.56
		Water	69.85
	Piper betle	Ethanol	17.38
		Chloroform	1.94
		Ethyl acetat	177.73
		Water	> 400
	Schefflera heptaphylla	Ethanol	197.29
		Chloroform	118.84
		Ethyl acetat	12.79
		Water	> 400
	Lonicera japonica	Ethanol	33.23
		Chloroform	206.73
		Ethyl acetat	7.15
		Water	35.49
	Cassia alata L.	Ethanol	> 400
		Chloroform	245.68
		Ethyl acetat	70.37
		Water	> 400
Reference	Vitamin C		4.09