| Title: | "Study of the changes in volatile compounds, aroma and sensory attributes during the production process of sparkling wine by traditional method" |
| Author(s): | Ubeda C; Kania-Zelada I; Del Barrio-Galan R; Medel-Maraboli M; Gil M; Pena-Neira A; |
| Address: | "Instituto de Ciencias Biomedicas, Facultad de Ciencias, Universidad Autonoma de Chile, el Llano Subercaseaux 2801, Santiago, Chile. Electronic address: cristina.ubeda@uautonoma.cl. Department of Agro-Industry and Enology, Faculty of Agronomical Sciences, University of Chile, Post Office Box 1004, Santa Rosa 11315, Santiago, Chile. Instituto de Ciencias Quimicas Aplicadas, Inorganic Chemistry and Molecular Materials Center, Universidad Autonoma de Chile, el Llano Subercaseaux 2801, Santiago, Chile" |
| DOI: | 10.1016/j.foodres.2018.10.032 |
| ISSN/ISBN: | 1873-7145 (Electronic) 0963-9969 (Linking) |
| Abstract: | "One of the strongest factors that affects the volatile profile of sparkling wine is the winemaking process. Here we focus on determining the effects of the second fermentation and aging on lees of sparkling wine from Pais grape variety combining different analysis techniques for the first time in sparkling wine: gas chromatography/mass spectrometry/olfactometry and sensorial analysis. During the second fermentation and aging, there was a significant loss of esters that might be related to the adsorption on lees and ester volatility and chemical hydrolysis. The concentration of several compounds such as some esters (diethyl succinate, ethyl lactate, and ethyl isovalerate) increased during aging and could be used as aging markers. Vitispiranes were identified as the best norisoprenoids aging markers for young sparkling wines (12?ª+months of aging). Also, PCA showed that time of aging on lees affected mostly esters and terpenes. On the other hand, the diminution of fruity/floral impact odorants during aging was not perceived in sensorial trials. Our results suggest that the responsibility for fruity/floral nuances in sparkling wine might reside in a few high-impact aromatic compounds, such as ethyl isobutyrate, isoamyl acetate, ethyl hexanoate, beta-phenylethanol and diethyl succinate" |
| Keywords: | Caproates Esters/analysis Female Fermentation Gas Chromatography-Mass Spectrometry Humans Male Odorants/*analysis Olfactometry Pentanols Phenylethyl Alcohol Propionates Succinates *Taste Terpenes/analysis Time Factors Vitis/classification Volatile Organic; |
| Notes: | "MedlineUbeda, Cristina Kania-Zelada, Ingeborg Del Barrio-Galan, Ruben Medel-Maraboli, Marcela Gil, Mariona Pena-Neira, Alvaro eng Research Support, Non-U.S. Gov't Canada 2019/03/20 Food Res Int. 2019 May; 119:554-563. doi: 10.1016/j.foodres.2018.10.032. Epub 2018 Oct 9" |
