Entity: Universitat Rovira i Virgili (URV)
Confidenciality: No
Education area(s): Begudes Fermentades
APS: No
Title in different languages: Dynamics of populations of saccharomyces cerevisiae strains in alcoholic fermentations from pied de cuve under different conditions of temperature and both sulfur and ethanol content
Abstract: The dynamics of Saccharomyces yeasts isolated from natural must fermentations initiated with vat feet at different temperature, sulfitation and ethanol conditions was studied. 115 strains were characterized and grouped into 33 inter-delta PCR profiles. The addition of SO2 and ethanol in vat feet increases diversity. The latency times of 27 strains (measurement of tolerance to SO2) show that pie de cuba strains have lower values between 0-80 mg/L of SO2. Finally, in co-inoculations of strains with high and low tolerance to SO2 or with Starmerella bacillaris, differences in growth are observed.
Subject: Fermentació
Academic year: 2022-2023
Language: spa
Work's public defense date: 2023-06-21
Subject areas: Enology
Student: Caballero Valdés, Eduardo Andrés
Department: Bioquímica i Biotecnologia
Creation date in repository: 2024-02-21
Keywords: Dynamics of populations, pied de cuve, sulfite
Title in original language: Dinámica de poblaciones de cepas de saccharomyces cerevisiae en fermentaciones alcohólicas a partir de pies de cuba a distintas condiciones de temperatura y contenido de sulfuroso y etanol
Access Rights: info:eu-repo/semantics/openAccess
Project director: Portillo Guisado, M. del Carmen
Repositori URV