Table 1.

Phytochemical Constituents of the Root Bark Extracts of Croton Macrostachyus

Constituents	Test		Crude Extract	Aqueous Fraction	Chloroform Fraction	Indicator
Alkaloids	Mayer’s test		+	+	+	Whitish opalescence
	Wagner’s test		+	+	+	Reddish brown
Anthraquinones	Borntrager’s Test		+	–	+	Pink to red
Polyphenol	Ferric Chloride Test		+	+	+	Blue green
Flavonoids	Shinoda reduction test	Magnesium	+	+	+	Orange
		Zink	–	–	–
Saponins	Foam test		+	+	+	Foam persistence
Tannins	Gelatin test		–	–	–	Precipitate formation
Coumarins	Ammonia test		+	+	+	Intense fluorescence

Notes: +→ presence, – → absence.