title: Analysis of minor components in olive oil.
abstract: Virgin olive oil is well known for its high content of phenolic substances that are thought to have health-promoting properties. These substances also contribute to the distinctive taste of the oil. In this study, tyrosol, vanillic acid, luteolin, and apigenin were identified and quantified by liquid chromatography mass spectrometry (LC-MS). In the seven samples analysed, tyrosol, the most abundant, was in the range of 1.4-29 mg/kg, vanillic acid was in the range of 0.67-4.0 mg/kg, luteolin was in the range of 0.22-7.0 mg/kg, and apigenin was in the range of 0.68-1.6 mg/kg. It was also shown that in olive oil, squalene can be analysed by using a refractive index detector. In the samples analysed, squalene occurred in the range of 3.9-9.6 g/l.
authors.affiliation: Department of Food Chemistry and Technology, Graz University of Technology, Petersgasse 12/2, Graz 8010, Austria. michael.murkovic@tugraz.at
authors.forename: Michael
authors.initials: M
authors.lastname: Murkovic
authors.forename: Sonja
authors.initials: S
authors.lastname: Lechner
authors.forename: Ariane
authors.initials: A
authors.lastname: Pietzka
authors.forename: Michael
authors.initials: M
authors.lastname: Bratacos
authors.forename: Evangellos
authors.initials: E
authors.lastname: Katzogiannos
mesh_terms: D002853:Chromatography, Liquid / Q000379:methods*; D005504:Food Analysis / Q000379:methods*; D013058:Mass Spectrometry / Q000379:methods*; D008832:Microchemistry / Q000379:methods; D000069463:Olive Oil; D010636:Phenols / Q000032:analysis*; D010938:Plant Oils / Q000032:analysis* / Q000737:chemistry*; D012031:Refractometry / Q000379:methods*
chemical_list: D000069463:Olive Oil; D010636:Phenols; D010938:Plant Oils