Table 1 Phytochemical screening of the aqueous extract of G. zeylanica
Phytoconstituents | Test/reagents | Observation |
|---|---|---|
Alkaloids | Mayer’s test | Negative |
Tannins | Braymer’s test | Positive |
Saponins | Foam test | Positive |
Anthraquinones | Benzene, 10% NH3 | Negative |
Flavanoids | 1% aluminium solution | Negative |
Carbohydrates | Molisch’s test | Positive |
Amino acids | Ninhydrin test | Negative |
Steroids | Salkowski test | Negative |
Terpenoids | Salkowski test | Negative |
Cardiac glycosides | FeCl3, conc. H2SO4 | Positive |
Coumarin | Alcoholic NaOH | Positive |