Composition and Antimicrobial Activity of<i>Otostegia fruticosa</i>Forssk. Oil

Abstract

ABSTRACT The hydrodistilled essential oil of fresh aerial parts of cultivated Otostegia fruticosa Forssk. was analyzed by GC/MS. Thirty-six compounds representing 98.8% of the oil were identified. The main components of the oil were thymol (43.7%), γ-terpinene (16.4%) and p-cymene (12.4%). The oil exhibited significant antimicrobial activity against Gram-positive and Gram-negative bacteria as well as fungal species.