期刊
FERMENTATION-BASEL
卷 7, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/fermentation7030171
关键词
commercial non-Saccharomyces yeasts; winemaking; biocompatibility; wine quality
资金
- Universidad Privada del Norte (Peru) [UPN-20201003]
Commercial products based on non-Saccharomyces yeasts offer potential for enhancing wine quality through increased metabolites, improved aromatic profiles, and biocontrol against contaminating microorganisms. Studies show the ability of these yeasts as alternatives and complements to traditional S. cerevisiae in winemaking.
About 42 commercial products based on non-Saccharomyces yeasts are estimated as available on the market, being mostly pure cultures (79%), with a predominance of Torulaspora delbrueckii, Lachancea thermotolerans, and Metschnikowia pulcherrima. The others are multi-starter consortia that include non-Saccharomyces/Saccharomyces mixtures or only non-Saccharomyces species. Several commercial yeasts have shown adequate biocompatibility with S. cerevisiae in mixed fermentations, allowing an increased contribution of metabolites of oenological interest, such as glycerol, esters, higher alcohols, acids, thiols, and terpenes, among others, in addition to a lower production of acetic acid, volatile phenols, biogenic amines, or urea. Multi-starter inoculations are also reviewed here, which show adequate biocompatibility and synergy between species. In certain cases, the aromatic profile of wines based on grape varieties considered neutral is improved. In addition, several yeasts show the capacity as biocontrollers against contaminating microorganisms. The studies conducted to date demonstrate the potential of these yeasts to improve the properties of wine as an alternative and complement to the traditional S. cerevisiae.
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