Alev Tosun*, Mine Kürkçüoglu, K. Hüsnü Can Baser and Hayri Duman
Abstract: The essential oil obtained by hydrodistillation from fruits of Tordylium ketenoglui H. Duman et A. Duran (Umbelliferae, Apiaceae) was analyzed by GC and GC/MS. In total, seventy-seven compounds were characterized, representing 91.6% of the oil. The main constituents were octyl octanoate (28.9%), octanol (11.6%) and bornyl acetate (7.2%).
The genus Tordylium L. (Syn.: Hasselquistia L., Condylocarpus Hoffm., Ainsworthia Boiss., Synelcosciadium Boiss.), is represented by 15 species in Turkey, is composed of annual herbs (2,3). The recently described species, T. ketenoglui is a local endemic. It possesses erect stems, 20-80 cm; bracts 5-8, unequal, linear-lanceolate with narrow membranous ciliate margins, scabrous, deflexed, to 8 mm. The umbels are 20-60 mm in diameter with five to 17, unequal, scabrous rays and 1-3 cm in fruit. The five to six bracteoles are unequal, linear-lanceolate, margins ciliate, as long as or slightly longer than fruiting pedicels. The flowers are 10-20 per umbellule without sepals but with radiant, white petals. The mericarps are ovate-orbicular, with thick, smooth margins or rarely moniliform at apex, covered with vesicular hairs on the dorsal surface. Tordylium ketenoglui grows on rocky slopes (1). In previous studies, flavonoids and a series of antifungal and cytotoxic coumarins were reported from T. apulum L., a spice used in Greece (4,5). The antibacterial activity of oil from aerial parts of T. apulum was investigated and α-humulene (28.7%), octyl hexanoate (11.7%), farnesyl acetone (9.8%) were found as main components in the oil (6). The main constituents in the fruit oil of T. apulum were octyl hexanoate (44.0%), octyl octanoate (34.5%) and octanol (16.5%), whereas the fruit oil of T.pustulosum Boiss. contained octyl hexanoate (73.2%), octanol (10.4%) and octyl 2-methyl butyrate (5.5%) as reported by Baser et al. (7). To the best of our knowledge, this is the first report on the chemistry of Tordylium ketenoglui.
