Ivan Špánik

Prof. Ivan Špánik


Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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5 December 2017 in Journal of Separation Science
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IŠIvan Špánik
Ivan Špánik
AMAndrea Machyňáková
Andrea Machyňáková

1 September 2014 in Food Chemistry
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Journal Article
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IŠIvan Špánik
Ivan Špánik
APAlexandra Pažitná
Alexandra Pažitná
PŠPeter Šiška
Peter Šiška
PSPeter Szolcsányi
Peter Szolcsányi

1 March 2013 in Journal of Chromatography A
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JKJán Krupčík
Ján Krupčík
RGRoman Gorovenko
Roman Gorovenko
IŠIvan Špánik
Ivan Špánik
PSPat Sandra
Pat Sandra
DADaniel W. Armstrong
Daniel W. Armstrong

25 April 2008 in Chromatographia
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AJAntónia Janáčová
Antónia Janáčová
JSJana Sádecká
Jana Sádecká
ZKZlatica Kohajdová
Zlatica Kohajdová
IŠIvan Špánik
Ivan Špánik

4 February 2020 in Molecules
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KFKatarína Furdíková
Katarína Furdíková
AMAndrea Machyňáková
Andrea Machyňáková
TDTereza Drtilová
Tereza Drtilová
IŠIvan Špánik
Ivan Špánik
The present work deals with the characterization of volatile organic compounds (VOCs) in wines from the Slovak Tokaj wine region. Studied wine samples were divided into three groups—varietal wines from registered Tokaj vine varieties, film wines Tokajské samorodné dry, and naturally sweet botrytized wines Tokaj selections. The VOCs from wines were extracted using optimized solid phase microextraction (SPME) and analyzed by comprehensive two-dimensional gas chromatography (GC×GC) coupled to high-resolution time-of-flight mass spectrometry (HRTOF-MS). In total, 176 VOCs were identified in all 46 studied samples. It was found that the total number of VOCs in varietal wines was generally higher than in botrytized wines. All three studied categories showed characteristic VOC profiles with significant differences. Varietal wines were characterized by higher concentrations of esters and terpenoids originating from grapes. The presence of γ-octalactone, (E)-6-methylhept-2-en-4-one, and lack of benzaldehyde were typical for Tokajské samorodné dry. Tokaj selections expressed the highest concentration of diethyl malate, benzaldehyde, and furfurals. Several interesting trends were also observed. The concentration of fermentation products was highest in varietal wines, while long-term matured Tokaj special wines were typified by the presence of compounds related to noble-rotten raisins (2-phenylacetaldehyde, ethyl 2-phenylacetate, and 2-phenylethanol), wood (cis-whisky lactone), and aging (1,1,6-trimethyl-2H-naphthalene, furfural, and 5-methylfurfural).

23 October 2017 in Journal of Food Science and Technology
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OVOlga Vyviurska
Olga Vyviurska
FMFrantišek Matura
František Matura
KFKatarína Furdíková
Katarína Furdíková
IŠIvan Špánik
Ivan Špánik