Turk J. Pharm. Sci. 7 (2), 161-166, 2010 Original artical COMPOSITION OF THE ESSENTIAL OIL OF SESELI CAMPESTRE Besser. GROWING IN THE NORTHWEST ANATOLIA Ayla KAYA 1* , Betül DEMİRCİ 2 , K. Hüsnü Can BAŞER 2 1 Anadolu University, Faculty of Pharmacy, Department of Pharmaceutical Botany, 26470 Eskişehir, TURKEY 2 Anadolu University, Faculty of Pharmacy, Department of Pharmacognosy, 26470 Eskişehir, TURKEY Abstract Seseli campestre Besser. (Apiaceae) is a perennial herb, white or purplish flowers. Water distilled essential oil from aerial parts of S. campestre was analysed by GC and GC/MS systems, simultanously. Thirty compounds were identified representing 97.1±0.3 % of the oil. The main essential oil components were found as α-pinene (38.6±0.5%), β-pinene (17.5±0.1%) and (E)-sesquilavandulol (10.3±0.8%). Key words: Essential oil, GC, GC-MS, Seseli campestre Kuzey Batı Anadolu’da Yeti§en Seseli campestre Besser. Uηucu Yaginın Kompozisyonu Seseli campestre Besser. (Apiaceae) beyaz ve mor gigekli gok yilhk bir bitkidir. Seseli campestre’nin toprak όstti hsımlarından su distilasyonu He elde edilen ugucu yagları GC ve GC/MS sistemleri He analiz edildi. Yağlarm % 97.1±0.3 kadarmi temsil eden 30 bileşik tammlandı. Ugucu yağ ana bileşenleri a-pinen (38.6±0.5%), fi-pinen (17.5±0.1%) ve (EJ-sesquilavandulol (10.3±0.8%) olarak bulundu. Anahtar kelimeler: Ugucu yağ, GC, GC-MS, Seseli campestre * Correspondence: Tel: +90 222 335 05 80 ext. 3726; Fax: +90 222 3350750 E-mail: aykaya@anadolu.edu.tr 161