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The metabolism of lipids in yeasts and applications in oenology

期刊

FOOD RESEARCH INTERNATIONAL
卷 141, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.foodres.2021.110142

关键词

Fatty acids; Sterols; Plasma membrane; Alcoholic fermentation; Wine

资金

  1. National Research Foundation of South Africa [118110, 83471]

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This review article provides an extensive evaluation of the biosynthesis, accumulation, metabolism and regulation of fatty acids and sterols in yeasts, discussing the implications of yeast lipid content on stress resistance and performance during alcoholic fermentation, with a particular emphasis on non-Saccharomyces yeasts.
Lipids are valuable compounds present in all living organisms, which display an array of functions related to compartmentalization, energy storage and enzyme activation. Furthermore, these compounds are an integral part of the plasma membrane which is responsible for maintaining structure, facilitating the transport of solutes in and out of the cell and cellular signalling necessary for cell survival. The lipid composition of the yeast Saccharomyces cerevisiae has been extensively investigated and the impact of lipids on S. cerevisiae cellular functions during wine alcoholic fermentation is well documented. Although other yeast species are currently used in various industries and are receiving increasing attention in winemaking, little is known about their lipid metabolism. This review article provides an extensive and critical evaluation of our knowledge on the biosynthesis, accumulation, metabolism and regulation of fatty acids and sterols in yeasts. The implications of the yeast lipid content on stress resistance as well as performance during alcoholic fermentation are discussed and a particular emphasis is given on non-Saccharomyces yeasts. Understanding lipid requirements and metabolism in non-Saccharomyces yeasts may lead to a better management of these yeast to enhance their contributions to wine properties.

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