Table 2.

In vitro activities of successive extracts against P. falciparum

S. No.	Species and control	Ext. of St. bark	IC50 μg ml−1 against Pf [Mean ± SD]
			Strain 3D7	Strain K1
1.	D. peregina	Hexane	>500	>500
2.		Ethyl acetate	>500	>500
3.		Methanol	44.7 ± 0.7	66.7 ± 1.6
4.	D. sylvatica	Hexane	>500	>500
5.		Ethyl acetate	19.4 ± 1.1	29.3 ± 0.8
6.		Methanol	51.5 ± 1.6	81.5 ± 1.3
7.	D. tomentosa	Hexane	>500	>500
8.		Ethyl acetate	>500	>500
9.		Methanol	>500	>500

Note. Pf : P. falciparum; SD: Standard deviation; St.: Stem; Ext.: Extract; n = 3.