title: Monoterpene and sesquiterpene hydrocarbons of virgin olive oil by headspace solid-phase microextraction coupled to gas chromatography/mass spectrometry.
abstract: In the present article, a headspace solid-phase microextraction method coupled to GC/MS was developed and applied for the simultaneous determination of mono- and sesquiterpenic hydrocarbons in virgin olive oils of different olive variety and geographical origin. Analysis of various oils resulted in the simultaneous detection of 15 monoterpenes and 30 sesquiterpenes. Some of these hydrocarbons were previously reported to be constituents of virgin olive oil terpenoid fraction, although we also detected some terpenic hydrocarbons that have not previously been documented as present in virgin olive oil. Significant differences were detected in the proportion of terpenic compounds in oils obtained from different olive varieties grown in different geographical areas. The monoterpene, and particularly the sesquiterpene composition of olive oil may be used to distinguish samples from different cultivar and geographical areas.
authors.affiliation: Departament de Nutrició i Bromatologia, Universitat de Barcelona, Avda Joan XXIII, s/n 08028 Barcelona, Spain. stefania.vichi@ub.edu
authors.forename: Stefania
authors.initials: S
authors.lastname: Vichi
authors.forename: Josep M
authors.initials: JM
authors.lastname: Guadayol
authors.forename: Josep
authors.initials: J
authors.lastname: Caixach
authors.forename: Elvira
authors.initials: E
authors.lastname: López-Tamames
authors.forename: Susana
authors.initials: S
authors.lastname: Buxaderas
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D039821:Monoterpenes / Q000032:analysis* / Q000302:isolation & purification; D000069463:Olive Oil; D010938:Plant Oils / Q000032:analysis* / Q000737:chemistry; D015203:Reproducibility of Results; D012717:Sesquiterpenes / Q000032:analysis* / Q000302:isolation & purification; D013696:Temperature; D013997:Time Factors
chemical_list: D039821:Monoterpenes; D000069463:Olive Oil; D010938:Plant Oils; D012717:Sesquiterpenes