Alkaloids |
Bouchardat’s reagent test |
Brown precipitate was not observed |
Absence of alkaloids |
Dragendorff’s reagent test |
Red-orange precipitate was not formed |
Absence of alkaloids |
Mayer’s reagent test |
Yellowish-white precipitate was not formed |
Absence of alkaloids |
Wagner’s reagent test |
A red-brown precipitate was not formed |
Absence of alkaloids |
Anthraquinone Glycosides |
Borntrager’s test |
Red color was not occurred |
Absence of anthraquinone glycosides |
Ammonium hydroxide test |
Pink-red color was not formed |
Absence of anthraquinone glycosides |
Cardiac Glycosides |
Keller-Kiliani test |
No formation of brown-ring between layers |
Absence of cardiac glycosides |
Flavonoids |
Alkaline reagent test |
Yellow fluorescence was not present |
Absence of flavonoids |
Shinoda test |
Red-pink color was not formed |
Absence of flavonoids |
Polyphenols |
Lead acetate test |
A bulky white precipitate was formed |
Presence of polyphenols |
Ferric chloride test |
Blue-green color was formed |
Presence of polyphenols |
Saponins |
Frothing test |
A stable persistent froth was formed |
Presence of saponins |
Steroids |
Libermann-Buchard test |
No formation of brown ring at the interface |
Absence of steroids |
Tannins |
Ferric chloride test |
Blue or purple or green precipitate was formed |
Presence of tannins |
Terpenoids |
Salkowski test |
A reddish-brown precipitate was formed |
Presence of terpenoids |