Chemical Composition of Aerial Parts of Rosmarinus officinalis L. Essential Oil Growing Wild in Lebanon

Essential oil (EO) from fresh aerial parts of Rosmarinus officinalis L. growing wild in Lebanon, was analyzed by GC-MS. Altogether, twenty-seven compounds, accounting for 93.83 % of the whole oil, were identified. 1,8-cineole (32.83 %), β-caryophyllene (12.94 %), borneol (11.65 %), camphor (10.33 %), bornyl acetate (4.19 %), α-pinene (4.10 %), and α-terpineol (3.87 %) were the main components of the oil.