Composition of the essential oil of Geocaryum cynapioides (Guss.) L. Engstrand |
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| Authors: | Niko S Radulovi? Nevenka D ?ordevi? Bojan K Zlatkovi? Radosav M Pali? |
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| Institution: | (1) Department of Chemistry, University of Niš, Višegradska 33, 18000 Niš, Serbia;(2) Department of Biology and Ecology, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia |
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| Abstract: | Volatile constituents from two fresh samples of the subendemic Geocaryum cynapioides (Guss.) L. Engstrand (Apiaceae) obtained by hydrodistillation were analyzed by GC and GC-MS. Forty four and one hundred-twenty
three constituents identified in the oils accounted for 98.7 % and 98.4 % of the total oils, respectively. The major component
of both oils was (E)-β-farnesene (73.3 % and 57.7 %) while the other major contributors were: (E,E)-α-farnesene (4.8 % and 14.6 %) and trans-sesquisabinene hydrate (12.2 % and 3.0 %). The constituents endo-fenchyl acetate, and three sesquiterpene lactones belonging to the selinane (callitrisin) and guaiane (grilactone and jalcaguaianolide)
series, with a rather restricted natural occurrence, were present in only one of the samples (4.7 %, trace amount, 0.1 %,
0.5 %, respectively) and completely absent from the other distinguishing so the two samples. A chemotaxonomic discussion of
the results is presented. |
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| Keywords: | Geocaryum cynapioides (Guss ) L Engstrand Apiaceae essential oil composition (E)-β -farnesene trans-sesquisabinene hydrate endo-fenchyl acetate grilactone chemotaxonomy |
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