Enantiomeric Composition of Filbertone in Hazelnuts in Relation to Extraction Conditions. Multidimensional Gas Chromatography and Gas Chromatography/Mass Spectrometry in the Single Ion Monitoring Mode of a Natural Sample

• Published in: Journal of agricultural and food chemistry Vol. 46; no. 10; pp. 4283 - 4286
• Main Authors: Blanch, Gracia P, Jauch, Johann
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.10.1998
• Subjects: AVELLANA; Biological and medical sciences; CHROMATOGRAPHIE EN PHASE GAZEUSE; COMPOSE DE LA FLAVEUR; COMPOSICION APROXIMADA; COMPOSITION GLOBALE; COMPUESTOS DEL SABOR; CROMATOGRAFIA DE GASES; ESPECTROMETRIA DE MASAS; EXTRACCION; EXTRACTION; FLAVOUR COMPOUNDS; FOOD COMPOSITION; Food industries; Fruit and vegetable industries; Fundamental and applied biological sciences. Psychology; GAS CHROMATOGRAPHY; HAZELNUTS; MASS SPECTROMETRY; NOISETTE; PROXIMATE COMPOSITION; SPECTROMETRIE DE MASSE; Nuts; Organoleptic properties; Hazelnut; Racemization; Chiral stationary phase; Volatile organic compound; Flame ionization detector; Operating conditions; Gas chromatography; Analysis method; Enantiomeric excess; Extraction; Aroma; Mass spectrometry
• ISSN: 0021-8561; 1520-5118
• DOI: 10.1021/jf980272+

The influence of the matrix and the isolation and concentration conditions on the enantiomeric excess of filbertone [(E)-5-methyl-2-hepten-4-one] in hazelnuts is studied. In hazelnuts, under mild conditions the filbertone obtained has a higher enantiomeric excess than that one extracted under forced conditions. Enantiomers were separated by inclusion gas chromatography on Chirasil-β-Dex using multidimensional gas chromatography with flame ionization detection and gas chromatography/mass spectrometry in the selected ion monitoring mode. Keywords: Filbertone; enantiomeric excess; multidimensional gas chromatography