Table 3 Phytochemical screening of seed and oil extracts in fenugreek.
From: Fenugreek seeds as a natural source of L-arginine-encapsulated lipid nanoparticles against diabetes
Sr #. | Screening test | Screened phytochemical | Inference | Result | |
|---|---|---|---|---|---|
Extract | Oil | ||||
1. | Wagner’s Test | Alkaloids | Appearance of reddish brown color with Wagner’s reagent | +++ | +++ |
2. | Foam Test | Saponins | Formation of stable foam | +++ | +++ |
3. | Ferric Chloride Test | Phenols | Indication of blue green color with ferric chloride | +++ | +++ |
4. | Braymer’s Test | Tannins | Formation of green precipitates | --- | --- |
5. | Salkowski’s Test | Terpenoids | Appearance of yellow color | --- | --- |
6. | Bontrager’s Test | Quinones | Occurrence of red color in alkaline phase | +++ | +++ |
7. | Keller Killani’s Test | Cardiac Glycosides | Formation of pink to blood red coloration | --- | --- |
8. | Glycosides Test | Glycosides | Indication of pink color | +++ | +++ |
9. | Alkaline Reagent Test | Flavonoids | Formation of yellow color which becomes colorless on addition of acid | +++ | +++ |
10. | Precipitate Test | Phlobatannins | Appearance of red precipitates | --- | --- |
