Protective Effects of Melatonin on <i>Saccharomyces cerevisiae</i> under Ethanol Stress

During alcoholic fermentation, <i>Saccharomyces cerevisiae</i> is subjected to several stresses, among which ethanol is of capital importance. Melatonin, a bioactive molecule synthesized by yeast during alcoholic fermentation, has an antioxidant role and is proposed to contribute to coun...

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Autores principales: Mercè Sunyer-Figueres, Albert Mas, Gemma Beltran, María-Jesús Torija
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/338fdde74a9049a8bf60ace50d35e8d4
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spelling oai:doaj.org-article:338fdde74a9049a8bf60ace50d35e8d42021-11-25T16:27:28ZProtective Effects of Melatonin on <i>Saccharomyces cerevisiae</i> under Ethanol Stress10.3390/antiox101117352076-3921https://doaj.org/article/338fdde74a9049a8bf60ace50d35e8d42021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3921/10/11/1735https://doaj.org/toc/2076-3921During alcoholic fermentation, <i>Saccharomyces cerevisiae</i> is subjected to several stresses, among which ethanol is of capital importance. Melatonin, a bioactive molecule synthesized by yeast during alcoholic fermentation, has an antioxidant role and is proposed to contribute to counteracting fermentation-associated stresses. The aim of this study was to unravel the protective effect of melatonin on yeast cells subjected to ethanol stress. For that purpose, the effect of ethanol concentrations (6 to 12%) on a wine strain and a lab strain of <i>S. cerevisiae</i> was evaluated, monitoring the viability, growth capacity, mortality, and several indicators of oxidative stress over time, such as reactive oxygen species (ROS) accumulation, lipid peroxidation, and the activity of catalase and superoxide dismutase enzymes. In general, ethanol exposure reduced the cell growth of <i>S. cerevisiae</i> and increased mortality, ROS accumulation, lipid peroxidation and antioxidant enzyme activity. Melatonin supplementation softened the effect of ethanol, enhancing cell growth and decreasing oxidative damage by lowering ROS accumulation, lipid peroxidation, and antioxidant enzyme activities. However, the effects of melatonin were dependent on strain, melatonin concentration, and growth phase. The results of this study indicate that melatonin has a protective role against mild ethanol stress, mainly by reducing the oxidative stress triggered by this alcohol.Mercè Sunyer-FigueresAlbert MasGemma BeltranMaría-Jesús TorijaMDPI AGarticleethanol stressyeast antioxidant responsemelatonin supplementationROS accumulationcatalase activitysuperoxide dismutaseTherapeutics. PharmacologyRM1-950ENAntioxidants, Vol 10, Iss 1735, p 1735 (2021)
institution DOAJ
collection DOAJ
language EN
topic ethanol stress
yeast antioxidant response
melatonin supplementation
ROS accumulation
catalase activity
superoxide dismutase
Therapeutics. Pharmacology
RM1-950
spellingShingle ethanol stress
yeast antioxidant response
melatonin supplementation
ROS accumulation
catalase activity
superoxide dismutase
Therapeutics. Pharmacology
RM1-950
Mercè Sunyer-Figueres
Albert Mas
Gemma Beltran
María-Jesús Torija
Protective Effects of Melatonin on <i>Saccharomyces cerevisiae</i> under Ethanol Stress
description During alcoholic fermentation, <i>Saccharomyces cerevisiae</i> is subjected to several stresses, among which ethanol is of capital importance. Melatonin, a bioactive molecule synthesized by yeast during alcoholic fermentation, has an antioxidant role and is proposed to contribute to counteracting fermentation-associated stresses. The aim of this study was to unravel the protective effect of melatonin on yeast cells subjected to ethanol stress. For that purpose, the effect of ethanol concentrations (6 to 12%) on a wine strain and a lab strain of <i>S. cerevisiae</i> was evaluated, monitoring the viability, growth capacity, mortality, and several indicators of oxidative stress over time, such as reactive oxygen species (ROS) accumulation, lipid peroxidation, and the activity of catalase and superoxide dismutase enzymes. In general, ethanol exposure reduced the cell growth of <i>S. cerevisiae</i> and increased mortality, ROS accumulation, lipid peroxidation and antioxidant enzyme activity. Melatonin supplementation softened the effect of ethanol, enhancing cell growth and decreasing oxidative damage by lowering ROS accumulation, lipid peroxidation, and antioxidant enzyme activities. However, the effects of melatonin were dependent on strain, melatonin concentration, and growth phase. The results of this study indicate that melatonin has a protective role against mild ethanol stress, mainly by reducing the oxidative stress triggered by this alcohol.
format article
author Mercè Sunyer-Figueres
Albert Mas
Gemma Beltran
María-Jesús Torija
author_facet Mercè Sunyer-Figueres
Albert Mas
Gemma Beltran
María-Jesús Torija
author_sort Mercè Sunyer-Figueres
title Protective Effects of Melatonin on <i>Saccharomyces cerevisiae</i> under Ethanol Stress
title_short Protective Effects of Melatonin on <i>Saccharomyces cerevisiae</i> under Ethanol Stress
title_full Protective Effects of Melatonin on <i>Saccharomyces cerevisiae</i> under Ethanol Stress
title_fullStr Protective Effects of Melatonin on <i>Saccharomyces cerevisiae</i> under Ethanol Stress
title_full_unstemmed Protective Effects of Melatonin on <i>Saccharomyces cerevisiae</i> under Ethanol Stress
title_sort protective effects of melatonin on <i>saccharomyces cerevisiae</i> under ethanol stress
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/338fdde74a9049a8bf60ace50d35e8d4
work_keys_str_mv AT mercesunyerfigueres protectiveeffectsofmelatoninonisaccharomycescerevisiaeiunderethanolstress
AT albertmas protectiveeffectsofmelatoninonisaccharomycescerevisiaeiunderethanolstress
AT gemmabeltran protectiveeffectsofmelatoninonisaccharomycescerevisiaeiunderethanolstress
AT mariajesustorija protectiveeffectsofmelatoninonisaccharomycescerevisiaeiunderethanolstress
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