Phytochemical Screening, Toxic Effects, and Antimicrobial Activity Studies of Digitaria abyssinica (Hochst. ex A.Rich.) Stapf (Poaceae) Rhizome Extracts against Selected Uropathogenic Microorganisms

Table 1

Phytochemical composition of D. abyssinica rhizome powder and extracts.

Phytochemicals	Method/reagent	Powder	Aqueous	Methanol	Dichloromethane : methanol (1 : 1)
Saponins	Foam test	+	−	+	+
Phenolics	Ferric chloride	+	+	+	+
Alkaloids	Mayer’s; Drangendorff’s	−; +	−; +	−; +	−; +
Cardiac glycosides	Keller–Killiani; Keddie	+; +	+; +	+; +	+; +
Tannins	Ferric chloride	+	+	+	+
Coumarins	Ferric chloride	+	+	+	+
Flavonoids	NaOH	+	+	+	+
Steroids	Liebermann–Burchard	+	+	+	+
Terpenoids	Salkowski	+	+	−+	+

Key: (+)—present; (−)—absent.