Chemical and principal-component analyses of the essential oils of apioideae taxa (Apiaceae) from central Balkan
Marin, Petar D
Veljić, Milan M
Skaltsa, Helen D
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The volatile constituents of the essential oils of 23 taxa belonging to the Apioideae subfamily were studied in detail. The investigated taxa were Pimpinella serbica (Vis.) BENTHAM & HOOKER, Libanotis montana Cr., Cnidium silaifolium (JACQ.) SIMK. ssp. orientale (BOISS.) TUTIN, Bupleurum praealtum L., B. sibthorpianum S. S. var. diversifolium (ROCH.) HAY, Aegopodium podagraria L., Torilis anthriscus (L.) GMEL., Orlaya grandiflora (L.) HOFFM., Laserpitium siler L., Laser trilobum (L.) BROKH., Chaerophyllum aureum L., C hirsutum L., C temulum L., Pastinaca sativa L., R hirsuta PANCIC., Tordylium maximum L., Physospermum cornubiense (L.) DC., Peucedanum alsaticum L., P oreoselinum (L.) MOENCH, P. cervaria (L.) Cuss., P austriacum (JACQ.) KOCH, P. longifolium W. et K., and P officinale L. All of these species grow wild in the central part of the Balkan Peninsula. The essential oils were found to be complex mixtures of various compounds, more than 100 constituents being in each taxon, with contributions of main products never exceeding 25% of the total content. Sesquiterpene hydrocarbons were found to be the main group of constituents of all taxa, except for Peucedanum species, where monoterpene hydrocarbons were identified as the main components. The chemotaxonomic value of the essential-oil composition is discussed according to results of principal-component analysis (PCA). The essential-oil composition mainly reflects current taxonomic relationships between the investigated taxa.