Effect of Kaolin/Defoliation Combined with Dry Ice on Lambrusco Red Wine Production to Constrain the Effects of Climate Change


Since viticulture is affected considerably by climate change, it is imperative to encourage research on newstrategies in order to constrain these critical effects on the composition of berries and the quality of wines.A multi-strategy approach composed of (i) kaolin application on foliage, (ii) late tree defoliation and (iii)cryomaceration of grapes with dry ice was evaluated in the production of Lambrusco Salamino wines.Physical, chemical and sensory analyses were carried out on the sample set, including the control wines.In general, cryomaceration with dry ice proved to be a winning choice to lower alcoholic strength (roughly5%). In addition, the wines showed an increase in anthocyanin content by approximately 17%, while thecontent of catechins, flavanols and hydroxycinnamic acids decreased. Consistent with the increase in theanthocyanin content, an increase in colour indices and sensory colour intensity scores was observed. As forthe aromatic profile, 2-phenylethanol showed an increase of approximately 18% in the treated wines while,in parallel, a lower content of C6 alcohols and volatile fatty acids was observed. The multiple adaptationstrategies put in place in the present study show an alternative way to mitigate the severe effects of climatechange on wine production, and to face changing consumer demands.

Author Biographies

G. Montevecchi
Department of Life Sciences (Agro-Food Science Area), BIOGEST - SITEIA Interdepartmental Centre, University ofModena and Reggio Emilia, Piazzale Europa 1, 42124 Reggio Emilia
F. Masino, University of Modena and Reggio Emilia
Life Science Department
A. Versari
Department of Agriculture and Food Science, University of Bologna, Piazza Goidanich 60, 47521, Cesena
A. Ricci
Department of Agriculture and Food Science, University of Bologna, Piazza Goidanich 60, 47521, Cesena
G. Nigro
Crop Production Research Centre, Viticultural and Oenological Division, Via Tebano 45, Faenza
A. Antonelli
Department of Life Sciences (Agro-Food Science Area), BIOGEST - SITEIA Interdepartmental Centre, University ofModena and Reggio Emilia, Piazzale Europa 1, 42124 Reggio Emilia


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