16.

Components from the Essential oil of Centaurea aeolica Guss. and C. diluta Aiton from Sicily, Italy

Mariem Ben Jemia, Felice Senatore, Maurizio Bruno, and Svetlana Bancheva

Laboratoire des Plantes Extremophiles - Biotechnologic Center Borj-Cedria Technopark, B.P. 901, 2050 Hammam-Lif, Tunisia

Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano, 49 - 80131 Naples, Italy

Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STeBiCEF), University of Palermo, Viale delle Scienze, Parco d’Orleans II - 90128 Palermo, Italy

Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113-Sofia, Bulgaria

Abstract: Volatile components from florets, leaves and stems and branches of Centaurea aeolica Guss. harvested in Lipari, Sicily, Italy, were analysed by gas phase chomatography (GC) and gas chomatography mass spectrometry (GC-MS). The main constituents were β-eudesmol, caryophyllene oxide, ( E )-12-norcaryophyll-5-en-2-one and hexahydrofarnesylacetone in flowers, hexahydrofarnesylacetone, 2-methyloctadecane and tricosane in the leaves and hexadecanoic acid , caryophyllene oxide and β-eudesmol in the stems and branches . The analysis of the essential oil of the aerial parts of Centaurea diluta Aiton gave mainly fatty acids and derivatives, the main ones being hexadecanoic acid and (Z,Z)-9,12-octadecadienoic acid methyl ester.

Keywords: Centaurea aeolica ; Centaurea diluta;GC-MS; volatile components;β-eudesmol; caryophyllene oxide; hexahydrofarnesylacetone; hexadecanoic acid. © 2015 ACG Publications. All rights reserved.