title: Volatile components from aerial parts of Centaurea gracilenta and C. ovina ssp. besserana growing wild in Bulgaria.
abstract: The essential oils of Centaurea gracilenta Velen. (CG) and C. ovina Pall. ex Willd. ssp. besserana (DC.) Dostál (COB) growing wild in Bulgaria, were studied by GC and GC-MS. Forty-five compounds for CG, representing the 90.1% of the oil, and 68 compounds for COB, representing the 91.9% of the oil, were identified. The oils were rich in sesquiterpenoids (33.4% for CG and 27.3% for COB), hydrocarbons (28.3% for CG and 10.7% for COB) and carbonylic compounds (12.7% for CG and 13.1% for COB). Fatty acids were abundant only for COB (31.3%). beta-Eudesmol (12.8%), nonacosane (11.8%) and p-vinyl guiacol (7.5%) were recognized as the main constituents for CG, while hexadecanoic acid (21.4%), spathulenol (7.9%), beta-eudesmol (5.8%) and caryophyllene oxide (5.7%) were the main compounds for COB.
authors.affiliation: Department of Chemistry of Natural Products, University of Naples "Federico II", Via D. Montesano, 49 - 80131 Naples, Italy.
authors.forename: Carmen
authors.initials: C
authors.lastname: Formisano
authors.forename: Daniela
authors.initials: D
authors.lastname: Rigano
authors.forename: Felice
authors.initials: F
authors.lastname: Senatore
authors.forename: Svetlana
authors.initials: S
authors.lastname: Bancheva
authors.forename: Maurizio
authors.initials: M
authors.lastname: Bruno
authors.forename: Antonella
authors.initials: A
authors.lastname: Maggio
authors.forename: Sergio
authors.initials: S
authors.lastname: Rosselli
mesh_terms: D002031:Bulgaria; D031179:Centaurea / Q000737:chemistry*; D009822:Oils, Volatile / Q000737:chemistry; D035261:Plant Components, Aerial / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry; D055549:Volatile Organic Compounds / Q000737:chemistry*
chemical_list: D009822:Oils, Volatile; D010938:Plant Oils; D055549:Volatile Organic Compounds