Table 3.

Phytochemical constituents of plant materials.

Extract	Tan	Gly	Sap	Flav	Alka	Trit	Ste	Coum
∗Eucalyptus	+	+	+	+	+	+	-	+
Allium cepa	+	+	+	+	+	+	+	+
Aloe	+	-	-	+	+	+	-	+

Key: absent (-); present (+); Tan = tannins; Gly = glycosides; Sap = saponnins; Flav = flavonoids; Alka = alkaloids; Trit = triterpenoids; Ste = sterols; Coum = coumarins; ^∗oil.