Identification of saffron aroma compound β-isophorone (3,5,5-trimethyl-3-cyclohexen-1-one) in some V. vinifera grape varieties

Annarita Panighel; Itay Maoz; Mirko De Rosso; Fabiola De Marchi; Antonio Dalla Vedova; Massimo Gardiman; Luigi Bavaresco; Riccardo Flamini

doi:10.1016/j.foodchem.2013.08.043

Identification of saffron aroma compound β-isophorone (3,5,5-trimethyl-3-cyclohexen-1-one) in some V. vinifera grape varieties

Food Chem. 2014 Feb 15:145:186-90. doi: 10.1016/j.foodchem.2013.08.043. Epub 2013 Aug 20.

Authors

Annarita Panighel¹, Itay Maoz, Mirko De Rosso, Fabiola De Marchi, Antonio Dalla Vedova, Massimo Gardiman, Luigi Bavaresco, Riccardo Flamini

Affiliation

¹ Consiglio per la Ricerca e la Sperimentazione in Agricoltura - Centro di Ricerca per la Viticoltura (CRA-VIT), Laboratorio Chimico, Viale XXVIII Aprile 26, 31015 Conegliano (TV), Italy.

PMID: 24128466
DOI: 10.1016/j.foodchem.2013.08.043

Abstract

Carotenoid-derived aroma compounds play an important role in the composition of aroma and grapes, and consequently of wine. The volatile composition of forty-five grape varieties harvested in 2011 and 2012 was investigated by solid phase extraction of samples and gas chromatography-mass spectrometry (GC-MS) analysis. In grape extracts of cultivars Barbera, Refosco dal Peducolo Rosso, Ribolla gialla and Rossese, the C9-norisoprenoid compound β-isophorone (3,5,5-trimethyl-3-cyclohexen-1-one) was found and quantified. This carotenoid-derived compound is characterised by a saffron aroma and is here reported in grape for the first time.

Keywords: Aroma compounds; Carotenoid derived; Gas chromatography; Grape; Mass spectrometry; Norisoprenoids; β-Isophorone.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Crocus / chemistry*
Cyclohexanones / analysis*
Gas Chromatography-Mass Spectrometry / methods
Solid Phase Extraction
Vitis / chemistry*

Substances

Cyclohexanones
isophorone