Changes of trehalose content and expression of relative genes during the bioethanol fermentation by Saccharomyces cerevisiae

Traditionally, trehalose is considered as a protectant to improve the ethanol tolerance of S. cerevisiae. In this study, to clarify the changes and roles of trehalose during the bioethanol fermentation, trehalose content and expression of related genes at lag, exponential and stationary phases (i.e., 2, 8, and 16 h of batch fermentation process) were respectively determined. Although yeast cells at exponential and stationary phase had higher trehalose content than cells at lag phase (PThe accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author