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Vicente J, Vladic L, Navascués E, Brezina S, Santos A, Calderón F, Tesfaye W, Marquina D, Rauhut D, Benito S. A comparative study of Lachancea thermotolerans fermentative performance under standardized wine production conditions. Food Chem X 2024; 21:101214. [PMID: 38379805 PMCID: PMC10876678 DOI: 10.1016/j.fochx.2024.101214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/26/2024] [Accepted: 02/06/2024] [Indexed: 02/22/2024] Open
Abstract
The study explores diverse strains of Lachancea thermotolerans in single-inoculum wine fermentation conditions using synthetic grape must. It aims to analyze the role of the species without external influences like other microorganisms or natural grape must variability. Commercial strains and selected vineyard isolates, untested together previously, are assessed. The research evaluates volatile and non-volatile chemical compounds in final wine, revealing significant strain-based variations. L. thermotolerans notably produces lactic acid and consumes malic acid, exhibiting moderate ethanol levels. The volatile profile displays strain-specific impacts, affecting higher alcohol and ester concentrations compared to S. cerevisiae. These effects vary based on the specific compounds. Using a uniform synthetic must enables direct strain comparisons, eliminating grape-related, environmental, or timing variables in the experiment, facilitating clearer insights into the behavior of L. thermotolerans in wine fermentation. The study compares for the first time all available commercial strains of L. thermotolerans.
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Affiliation(s)
- Javier Vicente
- Unit of Microbiology, Genetics, Biology Faculty, Physiology and Microbiology Department, Complutense University of Madrid, Ciudad Universitaria, S/N, 28040 Madrid, Spain
| | - Luka Vladic
- Department of Food Science and Technology, University of Natural Resources and Life Sciences, Vienna, Gregor-Mendel-Straße 33, 1180 Wien, Austria
- Department of Microbiology and Biochemistry, Hochschule Geisenheim University (HGU), Von-Lade-Straße 1, 65366 Geisenheim, Germany
| | - Eva Navascués
- Department of Chemistry and Food Technology, Polytechnic University of Madrid, Ciudad Universitaria, S/N, 28040 Madrid, Spain
| | - Silvia Brezina
- Department of Microbiology and Biochemistry, Hochschule Geisenheim University (HGU), Von-Lade-Straße 1, 65366 Geisenheim, Germany
| | - Antonio Santos
- Unit of Microbiology, Genetics, Biology Faculty, Physiology and Microbiology Department, Complutense University of Madrid, Ciudad Universitaria, S/N, 28040 Madrid, Spain
| | - Fernando Calderón
- Department of Chemistry and Food Technology, Polytechnic University of Madrid, Ciudad Universitaria, S/N, 28040 Madrid, Spain
| | - Wendu Tesfaye
- Department of Chemistry and Food Technology, Polytechnic University of Madrid, Ciudad Universitaria, S/N, 28040 Madrid, Spain
| | - Domingo Marquina
- Unit of Microbiology, Genetics, Biology Faculty, Physiology and Microbiology Department, Complutense University of Madrid, Ciudad Universitaria, S/N, 28040 Madrid, Spain
| | - Doris Rauhut
- Department of Microbiology and Biochemistry, Hochschule Geisenheim University (HGU), Von-Lade-Straße 1, 65366 Geisenheim, Germany
| | - Santiago Benito
- Department of Chemistry and Food Technology, Polytechnic University of Madrid, Ciudad Universitaria, S/N, 28040 Madrid, Spain
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