Antagonistic effect of alkaloids and saponins on bioactivity in the quinine tree (Rauvolfia caffra sond.): further evidence to support biotechnology in traditional medicinal plants

Table 2 Phytochemicals found in methanol extracts of leaves and stem bark of R. caffra

Compound	Test	Abundance
		Leaves	Stem bark
Alkaloids	Wagnes test	3	3
Terpenoids	p-anisaldehyde	1	3
Terpenoids	Salkowski test	2	3
Saponin	Vanilin/sulphuric acid	1	2
Saponin	Foam test	2	2
Steroids Cardiac glycosides	Chlorofoam/sulphuric acid	2	2
Steroids Cardiac glycosides	Keller-Killani test	2	2
Flavonoids	HCL-Mg reaction	0	0
	AlCl₃ reaction	0	0
	Ammonia test	0	0
Coumarin	Open loop – close loop response	0	0
Phenols and tannins	FeCl₃ test	0	0
Phenols and tannins	Vanillin- HCL reaction	0	0

ISSN: 2662-7671