Applied Microbiology and Biotechnology

, Volume 81, Issue 2, pp 327–338

Comparative proteome analysis of robust Saccharomyces cerevisiae insights into industrial continuous and batch fermentation

Genomics and Proteomics

DOI: 10.1007/s00253-008-1733-6

Cite this article as:
Cheng, JS., Qiao, B. & Yuan, YJ. Appl Microbiol Biotechnol (2008) 81: 327. doi:10.1007/s00253-008-1733-6


A robust Saccharomyces cerevisiae strain has been widely applied in continuous and batch/fed-batch industrial fermentation. However, little is known about the molecular basis of fermentative behavior of this strain in the two realistic fermentation processes. In this paper, we presented comparative proteomic profiling of the industrial yeast in the industrial fermentation processes. The expression levels of most identified protein were closely interrelated with the different stages of fermentation processes. Our results indicate that, among the 47 identified protein spots, 17 of them belonging to 12 enzymes were involved in pentose phosphate, glycolysis, and gluconeogenesis pathways and glycerol biosynthetic process, indicating that a number of pathways will need to be inactivated to improve ethanol production. The differential expressions of eight oxidative response and heat-shock proteins were also identified, suggesting that it is necessary to keep the correct cellular redox or osmotic state in the two industrial fermentation processes. Moreover, there are significant differences in changes of protein levels between the two industrial fermentation processes, especially these proteins associated with the glycolysis and gluconeogenesis pathways. These findings provide a molecular understanding of physiological adaptation of industrial strain for optimizing the performance of industrial bioethanol fermentation.


Continuous fermentation Batch/fed-batch fermentation Proteomic analysis Bioethanol Saccharomyces cerevisiae 

Supplementary material

253_2008_1733_MOESM1_ESM.doc (105 kb)
ESM 1(DOC 105 KB)

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Key Laboratory of Systems Bioengineering (Tianjin University), Ministry of Education, School of Chemical Engineering and TechnologyTianjin UniversityTianjinPeople’s Republic of China

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