title: Chemical composition of the essential oils of Centaurea formanekii and C. orphanidea ssp. thessala, growing wild in Greece.
abstract: The volatile constituents of the aerial parts of Centaureaformanekii Halacsy and the aerial parts, capitula and roots of C. orphanidea Heldr. & Sart. ex Boiss. ssp. thessala (Hausskn.) Dostál from Greece were extracted by hydrodistillation and analyzed. The main components in C. formanekii were hexadecanoic acid (13.6%), delta-elemene (9.1%), and spathulenol (6.9%). The main components in C. orphanidea ssp. thessala were gamma-elemene (26.1%) and caryophyllene oxide (13.2%) in the aerial parts, hexadecanoic acid (33.5%) and heptacosane (6.3%) in the capitula, and hexadecanoic acid methyl ester (22.0%) and a-chamigrene (14.0%) in the roots. The chemotaxonomic significance with respect to other previously studied species of the same sections (Phalolepis and Achrolopus, respectively) is discussed.
authors.affiliation: Laboratoire des Plantes Extremophiles, Biotechnologic Center Borj-Cedria Technopark, B.P. 901, 2050 Hammam-Lif, Tunisia.
authors.forename: Mariem Ben
authors.initials: MB
authors.lastname: Jemia
authors.forename: Carmen
authors.initials: C
authors.lastname: Formisano
authors.forename: Svetlana
authors.initials: S
authors.lastname: Bancheva
authors.forename: Maurizio
authors.initials: M
authors.lastname: Bruno
authors.forename: Felice
authors.initials: F
authors.lastname: Senatore
mesh_terms: D031179:Centaurea / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D006115:Greece; D009822:Oils, Volatile / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*
chemical_list: D009822:Oils, Volatile; D010938:Plant Oils