Table 5.
Phytochemical constituents of 80 % methanol extract of A. integrifolia
| Test | Reagents | Test result |
|---|---|---|
| Alkaloid | Wagner’s reagent | ++ |
| Terpenoids | Chloroform, acetic anhydride, concentrated sulphuric acid | ++ |
| Flavonoids | Magnesium ribbon, concentrated hydrochloric acid | ++ |
| Steroids | Chloroform, concentrated H2SO4 | + |
| Tannin | 10 % ferric chloride (FeCl3) | + |
| Saponins | distilled water | ++ |
| Anthraquinone | KOH | + |
| Phenol | ferric chloride | + |
| Proteins | Millions reagent | − |
| Carbohydrate | Fehling solution, HCl, NaOH | − |
| Fats and oils | Filter paper | + |
+++ = very strong positive, ++ = strong positive, + = fair positive, _ = absent