Author, as appears in the article.: Balmaseda, Aitor; Rozes, Nicolas; Bordons, Albert; Reguant, Cristina;
Department: Bioquímica i Biotecnologia
URV's Author/s: Balmaseda Rubina, Aitor / Bordons de Porrata- Doria, Albert / Reguant Miranda, Cristina / Rozès, Nicolas Andre Louis
Keywords: Yeasts Wine Volatile Variable number Torulaspora delbrueckii Population dynamics Oenococcus oeni Non-saccharomyces Malolactic fermentation Lactic-acid bacteria Growth Grapes Dynamics Catalonia
Abstract: Background and Aims Torulaspora delbrueckii is being used increasingly as a starter for alcoholic fermentation (AF) because of its chemical modulation of wine. Previous studies on this yeast in a natural must have shown a different Oenococcus oeni population by the end of MLF. In this study we aim to evaluate this aspect in a defined O. oeni strain consortium in a sterile grape must during winemaking. Methods and Results Before commencing AF with either S. cerevisiae or both T. delbrueckii and S. cerevisiae, the must was inoculated with a defined population of O. oeni strains. The use of T. delbrueckii determined the bacterial population at the end of MLF. Also, the inoculation of a selected strain after AF produced wines with different chemical composition to those fermented with the initial bacterial community. Conclusions Different yeast inoculation strategies modulate the O. oeni population, and this has an impact on the chemical composition of the wines. Moreover, the inoculation of a small O. oeni population in must leads to a process similar to spontaneous MLF. Significance of the Study Torulaspora delbrueckii can be used as a tool to modulate the O. oeni population and enhance the aromas related to MLF.
Thematic Areas: Matemática / probabilidade e estatística Horticulture Food science & technology Ciências agrárias i Ciência de alimentos
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: aitor.balmaseda@urv.cat aitor.balmaseda@urv.cat nicolasrozes@urv.cat albert.bordons@urv.cat cristina.reguant@urv.cat
Author identifier: 0000-0001-9718-3429 0000-0002-5320-8740 0000-0002-5036-1408
Record's date: 2024-09-07
Papper version: info:eu-repo/semantics/publishedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Australian Journal Of Grape And Wine Research. 28 (3): 374-382
APA: Balmaseda, Aitor; Rozes, Nicolas; Bordons, Albert; Reguant, Cristina; (2022). Modulation of a defined community of Oenococcus oeni strains by Torulaspora delbrueckii and its impact on malolactic fermentation. Australian Journal Of Grape And Wine Research, 28(3), 374-382. DOI: 10.1111/ajgw.12526
Entity: Universitat Rovira i Virgili
Journal publication year: 2022
Publication Type: Journal Publications
Repositori URV