The constituents of essential oil isolated by hydrodistillation of the aerial parts of Schinus molle L. Anacardiaceae family, from
Ethiopia was examined by GC-MS. A total of 16 components were identified accounting for 92.2 % of the oil. The essential oil of
S.molle contained as main components ?-phellandrene ( 20.6% ), ?-Phellandrene (10.8%), ?-pinene (8.7%), ?-pinene (5.1%), ?-
myrcene (6.9%), ?-elemene (5.0%), copane (6.5%), germacrene (5.8%), ?-cadinene (6.3%) and ?-humulene (5.4%). The essential oil
of S.molle showed no significant antibacterial activity against gram positive (Staphylococcus aureus) but less inhibition towards gram
negative bacteria ( Escherichia coli).