Author, as appears in the article.: Torrellas, Max; Rozes, Nicolas; Aranda, Agustin; Matallana, Emilia
Department: Bioquímica i Biotecnologia
URV's Author/s: Rozès, Nicolas Andre Louis
Keywords: Zygosaccharomyces-bailii; Torulaspora-delbrueckii; Tolerance; Oxidative stress; Non-saccharomyces; Metschnikowia-pulcherrima; Lipid-composition; Glutathione metabolism; Fermentation; Fatty-acid desaturase; Fatty acids; Cerevisiae; Biomass propagation; Antioxidant defenses; Active dry yeasts; glutathione metabolism; fatty acids; antioxidant defenses; active dry yeasts
Abstract: © 2020 Non-Saccharomyces wine yeasts are useful tools for producing wines with complex aromas or low ethanol content. Their use in wine would benefit from their production as active dry yeast (ADY) starters to be used as co-inocula alongside S. cerevisiae. Oxidative stress during biomass propagation and dehydration is a key factor in determining ADY performance, as it affects yeast vitality and viability. Several studies have analysed the response of S. cerevisiae to oxidative stress under dehydration conditions, but not so many deal with non-conventional yeasts. In this work, we analysed eight non-Saccharomyces wine yeasts under biomass production conditions and studied oxidative stress parameters and lipid composition. The results revealed wide variability among species in their technological performance during ADY production. Also, for Metschnikowia pulcherrima and Starmerella bacillaris, better performance correlates with high catalase activity and glutathione levels. Our data suggest that non-Saccharomyces wine yeasts with an enhanced oxidative stress response are better suited to grow under ADY production conditions.
Thematic Areas: Zootecnia / recursos pesqueiros; Química; Nutrição; Microbiology; Medicina veterinaria; Medicina i; Food science & technology; Food science; Farmacia; Engenharias ii; Ciências biológicas iii; Ciências biológicas ii; Ciências biológicas i; Ciências ambientais; Ciências agrárias i; Ciência de alimentos; Biotecnología; Biotechnology & applied microbiology; Biodiversidade
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 0740-0020
Author's mail: nicolasrozes@urv.cat
Record's date: 2025-02-19
Paper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0740002020301787?via%3Dihub
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Paper original source: Food Microbiology. 92 (103589): 103589-
APA: Torrellas, Max; Rozes, Nicolas; Aranda, Agustin; Matallana, Emilia (2020). Basal catalase activity and high glutathione levels influence the performance of non-Saccharomyces active dry wine yeasts. Food Microbiology, 92(103589), 103589-. DOI: 10.1016/j.fm.2020.103589
Article's DOI: 10.1016/j.fm.2020.103589
Entity: Universitat Rovira i Virgili
Journal publication year: 2020
Publication Type: Journal Publications
Repositori URV