Preliminary phytochemical investigation of aqueous leaf extract of Dolichos lablab L.a.
S. no. | Test | Chemical constituents | Result |
---|---|---|---|
1 | Mayer's test | Alkaloid | + |
2 | FeCl3 solution | Phenol | + |
3 | NaOH | Flavonoid | + |
4 | Fehling solution | Carbohydrate | − |
5 | Conc. HNO3 | Amino acid and protein | + |
6 | Methanol, chloroform, H2SO4 | Terpenoid | + |
7 | Shake with water | Saponin | + |
Where, (+) indicates presence and (−) indicates absence.