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Article

Chitosan in Sparkling Wines Produced by the Traditional Method: Influence of Its Presence during the Secondary Fermentation

Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin, 40, 40127 Bologna (BO), Italy
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Foods 2020, 9(9), 1174; https://doi.org/10.3390/foods9091174
Received: 31 July 2020 / Revised: 21 August 2020 / Accepted: 21 August 2020 / Published: 25 August 2020
Chitosan is a polysaccharide admitted in winemaking as clarifying, antimicrobial and chelating agent. In addition, evidence about its antioxidant and radical scavenging activities have been recently reported in wine conditions. As an insoluble adjuvant, chitosan efficacy also depends on the duration of its contact with the matrix. In the case of sparkling wines obtained following the traditional method, for instance, the addition of chitosan before the secondary fermentation would permit a prolonged contact of the polymer with wine and yeast lees. However, information on the effects of this practice on final products is totally unknown. In this work, the addition of chitosan during the secondary fermentation of a traditional sparkling wine production method has been investigated for its effects on both the physicochemical and sensory characteristics of the resulting wine. After 12 months of “sur lie” maturation, chitosan was found to increase the protein and amino acid content of wines up to about 50% and 9%, respectively, with limited change of phenolics and organic acids. Volatile compounds, particularly esters, were increased as well, which was reflected by higher values for fruity character and aroma intensity after sensory tests. Foaming features, evaluated by sensory and physical measurements, were also positively affected. View Full-Text
Keywords: chitosan; sparkling wine; foamability; sensory chitosan; sparkling wine; foamability; sensory
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MDPI and ACS Style

Castro Marín, A.; Riponi, C.; Chinnici, F. Chitosan in Sparkling Wines Produced by the Traditional Method: Influence of Its Presence during the Secondary Fermentation. Foods 2020, 9, 1174. https://doi.org/10.3390/foods9091174

AMA Style

Castro Marín A, Riponi C, Chinnici F. Chitosan in Sparkling Wines Produced by the Traditional Method: Influence of Its Presence during the Secondary Fermentation. Foods. 2020; 9(9):1174. https://doi.org/10.3390/foods9091174

Chicago/Turabian Style

Castro Marín, Antonio, Claudio Riponi, and Fabio Chinnici. 2020. "Chitosan in Sparkling Wines Produced by the Traditional Method: Influence of Its Presence during the Secondary Fermentation" Foods 9, no. 9: 1174. https://doi.org/10.3390/foods9091174

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