Comparison of Metal Oxide-Based Electronic Nose and Mass Spectrometry-Based Electronic Nose for the Prediction of Red Wine Spoilage

2008 ◽  
Vol 56 (9) ◽  
pp. 3238-3244 ◽  
Author(s):  
Amalia Z. Berna ◽  
Stephen Trowell ◽  
Wies Cynkar ◽  
Daniel Cozzolino
Keyword(s):  
Mass Spectrometry ◽  
Metal Oxide ◽  
Electronic Nose ◽  
Red Wine ◽  
Wine Spoilage

Geographical origin of Sauvignon Blanc wines predicted by mass spectrometry and metal oxide based electronic nose

2009 ◽  
Vol 648 (2) ◽  
pp. 146-152 ◽  
Author(s):  
Amalia Z. Berna ◽  
Stephen Trowell ◽  
David Clifford ◽  
Wies Cynkar ◽  
Daniel Cozzolino
Keyword(s):  
Mass Spectrometry ◽  
Metal Oxide ◽  
Electronic Nose ◽  
Geographical Origin ◽  
Sauvignon Blanc

scholarly journals Volatile phenolics in Teran PTP red wine

2016 ◽  
Vol 107 (1) ◽  
pp. 5 ◽  
Author(s):  
Helena BAŠA ČESNIK ◽  
Klemen LISJAK
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Red Wine ◽  
Sensory Characteristics ◽  
Threshold Values ◽  
Odour Threshold

The volatile phenolics, 4-ethylphenol, 4-vinylphenol, 4-ethylguaiacol and 4-vinylguaiacol were quantified in Teran PTP wines that were produced in the Kras winegrowing district. The compounds were determined by using gas chromatography coupled with mass spectrometry after extraction with diethylether. Three years monitoring (2011, 2012, 2013 vintages) showed that all four undesirable compounds were identified in Teran PTP wines, however their content did not influence significantly the sensory characteristics of the wine. The average contents gained over the three-year period (2011-2013; n=82) were 153±193 µg L<sup>-1</sup> for 4-ethylphenol, 1265±682 µg L<sup>-1</sup> for 4-vinylphenol, 69±94 µg L<sup>-1</sup> for 4-ethylguaiacol and 128±106 µg L<sup>-1</sup> for 4-vinylguaiacol. 7.3 % of samples showed contents of 4-ethylphenol above the odour threshold values. For 4-vinylphenol, 4-ethylguaiacol and 4-vinylguaiacol that percentage was 98.8 %, 25.6 % and 91.5 %, respectively.

Sign in / Sign up

Export Citation Format

Share Document