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Updated: May 27, 2026
10:08
Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis
Published on: August 12, 2019
Genetics of yeast impacting wine quality
Linda F Bisson1, Jonathan E Karpel
1Department of Viticulture and Enology, University of California, Davis, California 95616, USA. lfbisson@ucdavis.edu
Annual Review of Food Science and Technology
|December 2, 2011
Summary
Yeast, specifically Saccharomyces, significantly impacts wine flavor and aroma. Genetic variations in wine yeast strains influence the production of key flavor compounds, enhancing overall wine quality.
Area of Science:
- Oenology
- Microbiology
- Biochemistry
Background:
- The Saccharomyces genome sequence and advanced analytical techniques have spurred research into yeast's role in wine aroma.
- Genetic diversity among wine yeast strains is known, correlating with varied aroma profiles.
- Specific genetic alterations in yeast may influence the production of flavor-associated compounds.
Purpose of the Study:
- To review the positive contributions of Saccharomyces yeast to wine flavor and aroma.
- To highlight the enzymatic and metabolic mechanisms behind yeast's impact on wine quality.
Main Methods:
- Review of existing scientific literature on yeast genetics, metabolism, and wine aroma.
- Analysis of genomic data from various Saccharomyces wine strains.
- Integration of findings from chemical analysis of volatile aromatic compounds.
Main Results:
- Genetic differences in key flavor-formation genes exist across different wine yeast strains.
- Specific yeast metabolic pathways are responsible for producing desirable aroma and flavor compounds.
- Yeast plays a crucial, positive role in developing complex wine sensory profiles.
Conclusions:
- Understanding yeast genetics and metabolism is key to optimizing wine flavor.
- Targeting specific Saccharomyces strains and their metabolic pathways can enhance wine quality.
- Further research into yeast's contribution to wine aroma and flavor is warranted.
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