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- W2896927805 abstract "Oxidative stress is a common stress in yeasts during the stages of the winemaking process in which aerobic growth occurs, and it can modify the cellular lipid composition. The aim of this study was to evaluate the oxidative stress tolerance of two non-conventional yeasts (Torulaspora delbrueckii and Metschnikowia pulcherrima) compared to Saccharomyces cerevisiae. Therefore, their resistance against H2O2, the ROS production and the cellular lipid composition were assessed. The results showed that the non-Saccharomyces yeasts used in this study exhibited higher resistance to H2O2 stress and lower ROS accumulation than Saccharomyces. Regarding the cellular lipid composition, the two non-Saccharomyces species studied here displayed a high percentage of polyunsaturated fatty acids, which resulted in more fluid membranes. This result could indicate that these yeasts have been evolutionarily adapted to have better resistance against the oxidative stress. Furthermore, under external oxidative stress, non-Saccharomyces yeasts were better able to adapt their lipid composition as a defense mechanism by decreasing their percentage of polyunsaturated fatty acids and squalene and increasing their monounsaturated fatty acids." @default.
- W2896927805 created "2018-10-26" @default.
- W2896927805 creator A5014031101 @default.
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- W2896927805 creator A5059888836 @default.
- W2896927805 creator A5061533187 @default.
- W2896927805 creator A5091725609 @default.
- W2896927805 date "2019-04-01" @default.
- W2896927805 modified "2023-10-18" @default.
- W2896927805 title "The role of the membrane lipid composition in the oxidative stress tolerance of different wine yeasts" @default.
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- W2896927805 doi "https://doi.org/10.1016/j.fm.2018.10.001" @default.
- W2896927805 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30497596" @default.
- W2896927805 hasPublicationYear "2019" @default.
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