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56 2017

Journal of Food and Nutrition Research
Súhrny čísla 1 / 2017

Furdíková, K. – Bajnociová, L. – Malík, F. – Špánik, I.
Investigation of volatile profile of varietal Gewürztraminer wines using two-dimensional gas chromatography
Journal of Food and Nutrition Research, 56, 2017, č. 1, s. 73-85

Katarína Furdíková, Institute of Biotechnology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia. E-mail: katarina.furdikova@stuba.sk

Received 28 October 2016; 1st revised 4 January 2017; accepted 9 January 2017; published online 14 February 2016

Súhrn: Each varietal wine has its own characteristic aroma profile, which can be described by determination of its volatile organic compounds (VOC) profile. The aim of this work was to characterize Gewürztraminer wine using two-dimensional gas chromatography coupled to time-of-flight mass spectrometry, preceded by solid phase microextraction of volatile compounds from headspace, and identify VOC responsible for typical aroma profile of this varietal wine. In 30 wine samples, in total 288 volatiles were identified, while 153 were found in each studied sample. These common attributes creating varietal fingerprint of Gewürztraminer wine were represented by 50 esters, 28 terpenoids and C13-norisoprenoids, 25 higher alcohols, 23 furans, pyrans and lactones, 13 volatile acids, 10 carbonyl compounds, 3 sulphur compounds and 1 volatile phenol. Differentiation among Gewürztraminer wines and wines of other vine varieties was mainly perceived through the following components: cis-rose oxide, sulcatol, (Z)-beta-ocimene, 4-vinylguaiacol, furan, 2,5-furandicarboxaldehyde, 2(5H)-furanone, solerone, alpha-angelica lactone, 2-hydroxy-gamma-butyrolactone, beta-hydroxybutyrolactone, methyl pyruvate and methyl formate. Regardless of vintage and used technology, in all tested Gewürztraminer samples, VOC previously connected only with oak (maltol), botrytization (p-cymene), non-saccharomyces activity (blackberry thiophenone), insect pheromones or plants other than Vitis vinifera (isogeraniol, beta-farnesene, sulcatone, sulcatol, ethyl 3-methylthiopropionate) were identified.

Kľúčové slová: Gewürztraminer; wine; volatile organic compounds; two-dimensional gas chromatography

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