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

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

Compound Test Abundance
   Leaves Stem bark
Alkaloids Wagnes test 3 3
Terpenoids p-anisaldehyde 1 3
Salkowski test 2 3
Saponin Vanilin/sulphuric acid 1 2
Foam test 2 2
Steroids
Cardiac glycosides
Chlorofoam/sulphuric acid 2 2
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
Vanillin- HCL reaction 0 0
  1. Legend; 3 – Abundant; 2 - Moderately present; 1 - Weakly present; 0 - Absent.