Representative champagne wine extracts for gas chromatography olfactometry analysis

Gas chromatography olfactometry (GCO) analysis has proved to be a powerful method to determine key compounds of food aroma, but up to now few papers involving this technique in wine aroma studies were published. An accurate representation of the olfactory quality of the extracts is necessary to ensure the reliability of the conclusions resulting from such analyses. Three commercial champagne wines were used for this study. The champagne wine extracts were obtained from three different extraction methods:  adsorption on XAD resins, solvation in dichloromethane, and extraction by demixing ethanol. Thus the extracts were tested by a panel trained on champagne wines, using a profile descriptive…