Essential oil constituents of L. and L. (Cupressaceae) growing in Aures region of Algeria.

The purpose of this study was to determine the chemical composition of essential oils from the aerial parts of two species belonging to the Cupressaceae family growing in the Aures region of Algeria and The analysis by GC-MS and GC-FID techniques showed the presence of 38 compounds in oil where the major constituents were manoyl oxide (23.5%), pentadecan-2-enone 6Z (12.6%), abietatriene (8.0%), abieta-8,11,13-triene-7-one (6.5%), cubebol (4.6%), -torilenol (3.8%) and α-cadinol (2.6%), while, a total of 65 compounds were showed in oil where the major constituents were α-pinene (68.0%), -cedrol (6.1%), α-terpenyl acetate (3.5%) and germacrene D (2.5%). It is the first time that the compounds pentadecan-2-enone 6Z, abieta-8,11,13-trien-7-one, cubebol and -torilenol have been identified in our and -cedrol in essential oils with high contents, as we noticed the absence of α-pinene in our essential oil.