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. 2021 Feb 12;14:59–70. doi: 10.2147/CEG.S290859

Table 5.

Phytochemical Screening of 80% Methanol Extract of P. dodecandra Root

Phytochemical Test Method Observation Result
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