Evaluating the impact of a fungal-origin chitosan preparation on Brettanomyces bruxellensis in the context of wine aging


Submitted: 16 July 2014
Accepted: 29 September 2014
Published: 15 December 2022
Abstract Views: 3159
PDF: 1172
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Authors

Brettanomyces bruxellensis and the consequences of its development in wines are a continuous threat for wine quality. In this context, chitosan of fungal origin was introduced as a new tool to control B. bruxellensis in the context of winemaking. Recent studies have showed the impact of a fungal origin chitosan application on wines contaminated with B. bruxellensis, leading to the elimination of B. bruxellensis cells. In these studies, the chitosan preparation was added, the wine racked off after 10 days and the efficiency of the treatment was evaluated in a short delay after the treatment. This study focused on the evaluation of the impact of different addition protocols of an enological chitosan preparation on B. bruxellensis population evolution and volatile phenols content along the aging, up to 9 months. The results confirm the interest of fungal origin chitosan as a preventive tool to control B. bruxellensis in the context of wine aging.

Supporting Agencies

This work was carried out thanks to the collaboration of «Castello di Fonterutoli – Marchesi Mazzei» winery, Castellina in Chianti, Italy. Authors specially thank Dr Luca Biffi, chief winemaker, who took care of the trials.

Nardi, T., Vagnoli, P., Minacci, A., Gautier, S., & Sieczkowski, N. (2022). Evaluating the impact of a fungal-origin chitosan preparation on <i>Brettanomyces bruxellensis</i> in the context of wine aging. Wine Studies, 1. https://doi.org/10.4081/ws.4574

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