Özet:

The fruits of Smyrnium connatum Boiss. & Kotschy growing wild in Lakes Region in Turkey were collected at seed maturing stage from 4 different localities to study the essential oil composition. The essential oils of fruits were obtained by hydro distillation and components of the oils were identified by GC and GC-MS. The essential oil contents ranged from 1.75% to 5.00 %. The number of essential oil components ranged from 43 to 72 based on locations and a total of 85 different compounds were identified. Major qualitative and quantitative variations of some compounds were determined with respect to localities of collection. The major components were curzerene (15.56-25.45%), β- elemene (4.83-10.63%), germacrene B (4.32-9.14%), germacrene D (7.78- 11.77%), procerin (5.23-6.69) and furanodiene (% 3.66-12.97) and essential oils consisted of high percentage of sesquiterpenes (% 72.80-92.07). It was concluded that S. connatum fruit essential oil was shown significant qualitative and quantitative differences depending on ecological conditions of the region where the species grow, and these factors should be taken into account in both culture and using in different purposses.

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