Antimicrobial Activity and Composition of Hyptis mutabilis Essential Oil

ABSTRACT An analysis of the hydrodistilled essential oil from fresh aerial parts of Hyptis mutabilis (Rich) Briq. by GC/MS resulted in the identification of 24 compounds that represented 95.5 percent of the oil. The main constituents of the oil were E-caryophyllene (14.7%), spathulenol (14.2%) and germacrene D (11.1%). The oil exhibited significant antimicrobial activity against Mucor sp.