Comparative essential oil composition of various parts of the turpentine tree (Pistacia terebinthus L) growing wild in Turkey

The essential oil contents (dry weight basis) of young shoots, flowers, unripe and ripe fruits of the turpentine tree (Pistacia terebinthus L) were determined as 0.74, 0.70, 0.54 and 0.73% respectively. The main components identified by GC/MS analysis (the identified components represents 90.7, 96.1, 98.0 and 99.0% of the respective oils) were limonene (3.0, 9.4, 34.2 and 32.8%), α‐pinene (5.3, 12.4, 15.6 and 5.3%), β‐pinene (1.4, 8.0, 11.5 and 22.5%) and germacrene D (trace, 19.9, 3.5 and 4.6%). Minor qualitative and major quantitative variations in some compounds of the analysed oils were determined with respect to the different parts of the turpentine tree.