Chemical variation in the essential oil of Satureja sahendica from Iran

Hydro-distilled volatile oils from the aerial parts of eight populations of Satureja sahendica Bornm. were investigated, mainly by a combination of GC and GC/MS. S. sahendica is one of the endemic species of Satureja in Iran. Thirty-nine components were identified in the oils. The main constituents of the essential oils were thymol (19.6–41.7%), p-cymene (32.5–54.9%) and γ-terpinene (1.0–12.8%). Although the main components of all the oils are common, their percentages are different.