Table 1.

Extraction yields and antiplasmodial activities of the essential oils

Essential oil sample		Extraction yielda (% w/w)	ICb50 (μg/mL) ± SD
C. patens	Stem bark	0.23	9.19 ± 0.08
	Leaf	0.19	15.19 ± 0.13
U. pierreanum	Stem bark	0.10	6.08 ± 0.01
	Leaf	0.30	13.96 ± 0.05

IC₅₀ values are means from triplicate experiments

SD standard deviation

^aEssential oils were obtained from plant materials by hydrodistillation, and the yields were calculated in percentage relative to the weight of starting material

^bThe oils were evaluated against the W2 strain of P. falciparum