| The impact of acetate metabolism on yeast fermentative performance and wine quality: reduction of volatile acidity of grape musts and wines. | |
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MedLine Citation:
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PMID: 20931186 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Acetic acid is the main component of the volatile acidity of grape musts and wines. It can be formed as a by-product of alcoholic fermentation or as a product of the metabolism of acetic and lactic acid bacteria, which can metabolize residual sugars to increase volatile acidity. Acetic acid has a negative impact on yeast fermentative performance and affects the quality of certain types of wine when present above a given concentration. In this mini-review, we present an overview of fermentation conditions and grape-must composition favoring acetic acid formation, as well the metabolic pathways leading to its formation and degradation by yeast. The negative effect of acetic acid on the fermentative performance of Saccharomyces cerevisiae will also be covered, including its role as a physiological inducer of apoptosis. Finally, currently available wine deacidification processes and new proposed solutions based on zymological deacidification by select S. cerevisiae strains will be discussed. |
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Authors:
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Alice Vilela-Moura; Dorit Schuller; Arlete Mendes-Faia; Rui D Silva; Susana R Chaves; Maria João Sousa; Manuela Côrte-Real |
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Publication Detail:
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Type: Journal Article Date: 2010-10-08 |
Journal Detail:
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Title: Applied microbiology and biotechnology Volume: 89 ISSN: 1432-0614 ISO Abbreviation: Appl. Microbiol. Biotechnol. Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2011-01-04 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8406612 Medline TA: Appl Microbiol Biotechnol Country: Germany |
Other Details:
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Languages: eng Pagination: 271-80 Citation Subset: IM |
Affiliation:
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Institute for Biotechnology and Bioengineering, Centre of Genomic and Biotechnology, (IBB/CGB-UTAD), Universidade de Trás-os-Montes e Alto Douro, 5001-801, Vila Real, Portugal. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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