Research Article
Toxicological Characterization of Ten Medicinal Plants of the Beninese Flora Used in the Traditional Treatment of Diarrheal Diseases
Table 3
Qualitative phytochemical screening of the studied medicinal plants.
| | Secondary metabolites | Test reagents | AO | DM | DO | KS | Me | OG | PE | RV | SI | VA |
| | Tannins | Ferric chloride | + | + | + | + | + | + | ++ | + | ++ | ++ | | Catechic tannins | Stiasny’s reagent | + | + | + | + | + | + | ++ | − | ++ | − | | Gallic tannins | Ferric chloride and saturation with sodium acetate | + | + | − | − | + | + | ++ | − | − | ++ | | Flavonoids | Shinoda test with powder magnesium | − | + | + | + | − | + | ++ | + | − | ++ | | Anthocyanins | Hydrochloric acid and ammonia at 50% | − | − | − | − | − | + | − | − | − | ++ | | Leuco-anthocyanins | Hydrochloric acid | + | + | + | + | − | − | − | − | − | − | | Alkaloids | Mayer’s reagent | − | + | + | + | − | + | − | | − | ++ | | Mucilage | Absolute alcohol test | − | − | + | + | − | − | − | + | ++ | ++ | | Reducing compounds | Test with fehling liqueur | + | + | + | + | − | + | + | + | + | + | | Sterol-terpenes | Anhydride acetic-sulfuric acid | − | − | − | − | − | − | ++ | + | − | ++ | | Saponosides | Foam index test | + | + | + | + | + | + | − | + | + | + |
|
|
+: presence; -: absence; ++: Strong presence. AO: Anacardium occidentale; DM: Diospyros mespiliformis; DO: Daniellia oliveri; KS: Khaya senegalensis; ME: Manihot esculenta; OG: Ocimum gratissimum; PE: Pterocarpus erinaceus; RV: Rauvolfia vomitoria; SI: Senna italica; VA: Vernonia amygdalina.
|
