Table 1.
Secondary metabolite constituents of Musa paradisiaca sap.
| Secondary metabolites | Observation | Inference | 
|---|---|---|
| Alkaloids | Cream colour with Mayer's reagent; Reddish-brown precipitate with Wagner's and Dragendorff's reagents | Present | 
| Tannins | White precipitate with ethanolic KOH | Present | 
| Saponins | Stable, persistent froth with water | Present | 
| Flavonoids | Dark yellow colour with KOH | Present | 
| Phenolics | Greenish precipitate with FeCl3 | Present | 
| Steroids | Red colour with drops of concentrated H2SO4 | Present | 
| Triterpenes | Absence of bluish-green colour | Not detected | 
| Cardiac glycosides | Absence of reddish-brown colour at the interface | Not detected | 
| Anthraquinones | Absence of pink in the ammoniacal phase | Not detected | 
| Cardenolides and dienolides | Absence of brown ring at the interfere | Not detected |