Antimicrobial Activities of Leaf Extracts of Guava (Psidium guajava L.) on Two Gram-Negative and Gram-Positive Bacteria

Table 1

Phytochemical constituents of Psidium guajava extracts.

Extracts	Phenols and tannins	Saponins	Terpenoids	Flavonoids	Glycosides
n-Hexane	−	−	−	−	−
Methanol	+	−	+	+	+
Ethanol	+	−	+	+	+
Distilled water	+	+	+	+	+

+: presence of constituent (positive); −: absence of constituent (negative).