Title of article :
Volatile phenolics in Teran PTP red wine
Author/Authors :
baša česnik, helena agricultural institute of slovenia, Slovenia , lisjak, klemen agricultural institute of slovenia, Slovenia
From page :
5
To page :
13
Abstract :
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^-1 for 4-ethylphenol, 1265±682 μg L^-1 for 4-vinylphenol, 69±94 μg L^-1 for 4-ethylguaiacol and 128±106 μg L^-1 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.
Keywords :
GC , MS , 4 , ethylphenol , 4 , vinylphenol , 4 , ethylguaiacol , 4 , vinylguaiacol
Journal title :
Acta agriculturae Slovenica
Journal title :
Acta agriculturae Slovenica
Record number :
2620241
Link To Document :
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