In Vitro Filaricidal Properties of Aqueous Extracts of Combretum nigricans (Combretaceae) on Onchocerca ochengi (Onchocercidae)

Table 1

Yields of crude aqueous extracts of Combretum nigricans.

Plant parts	Extraction type	The dry mass of the plant sample in g	Filtrate volume in mL	Mass of crude extract in g	Yield in %
Leaves	Decoction	20	55	1.3	6.5
Barks	Decoction	20	100	2	10
Roots	Decoction	20	50	1	5