Table 1.

Phytochemical profile of standardized ethanolic extract of Curcuma xanthorrhiza rhizome.

Chemical constituents	Tests/Reagents	Results
Reducing sugars	Fehling’s reagent	++
Saponins	Frothing test	+
Alkaloids	Dragendroff’s reagent	-
Flavonoids	Acid-alcohol	+++
Cardiac Glycosides	Keller-Killiani test	+++
Steroids	Acetic anhydride	-
Terpenoids	Sulphuric acid reagent	+++
Tannins	Ferric chloride reagent	-
Phlobatannin	Hydrochloric acid	-
Anthraquinones	Borntrager’s test	++

Key: +++ = abundance; ++ = moderately present; + = present; ± = weakly present; - = absent.