Chemical Composition of the Essential Oil of Rosemary (Rosmarinus officinalis L.) of Tunisian Origin

The hydrodistilled essential oils of three samples of aerial parts of Rosmarinus officinals L. growing in Tunisia were analyzed by GC-MS. Capillary GC-MS analysis of the essential oils permitted the detection of 38 components. Among them, four were tentatively identified. The oils were found to be rich in 1,8-cineol (33.08-37.75 %), camphor (13.55-18.13 %); alpha-pinene (8.58-932 %), alpha-terpineol (6.79-8.17 %), camphene (5.07-5.58 %), borneol (4.08-5.48 %), limonene (3.19-3.04 %) and p-cymene (2.42-3.11 %).