Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Non-canonical regulation of glutathione and trehalose biosynthesis characterizes non-Saccharomyces wine yeasts with poor performance in active dry yeast production.
Year:2018
Research Areas
  • Natural sciences and health sciences,
  • Foodstuffs tecnology
Information
Abstract
Several yeast species, belonging to Saccharomyces and non-Saccharomyces genera, play fundamental roles during spontaneous must grape fermentation, and recent studies have shown that mixed fermentations, co-inoculated with S. cerevisiae and non-Saccharomyces strains, can improve wine organoleptic properties. During active dry yeast (ADY) production, antioxidant systems play an essential role in yeast survival and vitality as both biomass propagation and dehydration cause cellular oxidative stress and negatively affect technological performance. Mechanisms for adaptation and resistance to desiccation have been described for S. cerevisiae, but no data are available on the physiology and oxidative stress response of non-Saccharomyces wine yeasts and their potential impact on ADY production. In this study we analyzed the oxidative stress response in several non-Saccharomyces yeast species by measuring the activity of reactive oxygen species (ROS) scavenging enzymes, e.g., catalase and glutathione reductase, accumulation of protective metabolites, e.g., trehalose and reduced glutathione (GSH), and lipid and protein oxidation levels. Our data suggest that non-canonical regulation of glutathione and trehalose biosynthesis could cause poor fermentative performance after ADY production, as it corroborates the corrective effect of antioxidant treatments, during biomass propagation, with both pure chemicals and food-grade argan oil.
International
Si
JCR
No
Title
Microbial Cell
ISBN
2311-2638
Impact factor JCR
Impact info
Volume
5
10.15698/mic2018.04.624
Journal number
4
From page
184
To page
197
Month
ENERO
Ranking
Participants
  • Autor: Esther Gamero Sandemetrio (IATA-CSIC)
  • Autor: Lucia Paya Tormo (UPM)
  • Autor: Rocío Gómez Pástor (IATA-CSIC)
  • Autor: Agustín Aranda (IATA-CSIC)
  • Autor: Emilia Matallana (IATA-CSIC)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: BIOLOGÍA MOLECULAR Y COMPUTACIONAL
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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