Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Colonization of Wild Saccharomyces cerevisiae Strains in a New Winery

Abstract : The aim of this work was to study the fungal colonization of a new winery over time, specifically for Saccharomyces cerevisiae. Therefore, we analyzed the flora present before the arrival of the first harvest on the floor, the walls and the equipment of this new winery by Illumina MiSeq. The genus Saccharomyces (≤0.3%) was detected on floor and equipment but the presence of S. cerevisiae species was not reported. Wild S. cerevisiae strains were isolated from a ‘Pied de Cuve’ used during the first vintage to ensure the alcoholic fermentation (AF). Among 25 isolates belonging to this species, 17 different strains were identified highlighting a great intraspecific diversity. S. cerevisiae strains were also isolated from different vats throughout the spontaneous fermentations during the first vintage. The following year, some of these strains were isolated again during AF. Some of them (four) were found in the winery equipment before the arrival of the third harvest suggesting a potential colonization by these strains. To better understand what promotes the yeast colonization of the winery’s environment, the ability to form a biofilm on solid surfaces for eight colonizing or non-colonizing strains was studied. This capacity, different according to the strains, could partly explain the colonization observed for certain strains
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-univ-bourgogne.archives-ouvertes.fr/hal-03123868
Contributeur : Pam - Université de Bourgogne <>
Soumis le : jeudi 28 janvier 2021 - 11:23:18
Dernière modification le : vendredi 5 février 2021 - 03:47:53

Lien texte intégral

Identifiants

Collections

Citation

Hany Abdo, Claudia Catacchio, Mario Ventura, Pietro D’addabbo, Francesco Maria Calabrese, et al.. Colonization of Wild Saccharomyces cerevisiae Strains in a New Winery. Beverages, MDPI, 2020, 6 (1), pp.9. ⟨10.3390/beverages6010009⟩. ⟨hal-03123868⟩

Partager

Métriques

Consultations de la notice

24