Various Parts of Helianthus annuus Plants as New Sources of Antimalarial Drugs

Table 2

IC₅₀ values of 96% ethanol extract of various parts of H. annuus plants against P. falciparum strain 3D7.

H. annuus plant parts	% inhibition at each concentration (μg/mL)					IC50 (μg/mL)
	100	10	1	0.1	0.01
Roots	86.6 ± 1.7	73.3 ± 6.9	32.0 ± 3.7	22.3 ± 0.0	7.3 ± 7.4	2.3 ± 1.4
Stems	64.4 ± 4.6	56.4 ± 1.1	30.7 ± 7.7	18.8 ± 4.9	0	10.2 ± 5.0
Seeds	84.4 ± 1.0	22.2 ± 6.9	14.2 ± 3.9	6.2 ± 10.3	0	19.3 ± 5.5
Flowers	85.7 ± 8.7	48.4 ± 2.6	32.0 ± 2.9	19.3 ± 8.7	0	4.8 ± 0.0
Leaves	96.3 ± 1.8	47.1 ± 4.7	24.3 ± 11.7	16.5 ± 6.2	7.0 ± 1.0	4.3 ± 2.2