Bioprospecting of a Metschnikowia pulcherrima Indigenous Strain for Chasselas Winemaking in 2022 Vintage

Autor: Federico Sizzano, Marie Blackford, Hélène Berthoud, Laurent Amiet, Sébastien Bailly, Frédéric Vuichard, Christine Monnard, Stefan Bieri, Jean-Laurent Spring, Yannick Barth, Corentin Descombes, François Lefort, Marilyn Cléroux, Scott Simonin, Charles Chappuis, Gilles Bourdin, Benoît Bach
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Foods, Vol 12, Iss 24, p 4485 (2023)
Druh dokumentu: article
ISSN: 2304-8158
DOI: 10.3390/foods12244485
Popis: Interest in Metschnikowia (M.) pulcherrima is growing in the world of winemaking. M. pulcherrima is used both to protect musts from microbial spoilage and to modulate the aromatic profile of wines. Here, we describe the isolation, characterization, and use of an autochthonous strain of M. pulcherrima in the vinification of Chasselas musts from the 2022 vintage. M. pulcherrima was used in co-fermentation with Saccharomyces cerevisiae at both laboratory and experimental cellar scales. Our results showed that M. pulcherrima does not ferment sugars but has high metabolic activity, as detected by flow cytometry. Furthermore, sensory analysis showed that M. pulcherrima contributed slightly to the aromatic profile when compared to the control vinifications. The overall results suggest that our bioprospecting strategy can guide the selection of microorganisms that can be effectively used in the winemaking process.
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