Table 1.
Preliminary phytochemical screening of the ethyl acetate extract of Senna tora (L.) Roxb. leaves.
Test name | Observation | Result | Name of phytochemicals |
---|---|---|---|
Alkaline reagent | Colorless solution | + | Phenolic (Flavonoids) |
Ferric chloride | Reddish-black coloration | + | Phenolic (Tannins) |
Lead acetate | Creamy-white color precipitation | + | Phenolic (Tannins) |
Salkowski's | Bluish-brown layer at upper interface | + | Terpenoids |
Salkowski's | Black color in the bottom face | + | Steroids |
Mayer's | Creamy-colored precipitation | + | Alkaloids |
Legal's | Blood-red color | + | Cardiac glycosides |
Foaming | Foam formation | + | Saponins |
Fehling's | Brick-red precipitation | + | Reducing sugar |
“+” means presence of specific phytochemicals.