Characterization of the contaminant microflora by mass spectrometry and metabolites in the fermentation process for ethanol production.

• Grant number: 11/23816-0
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: June 01, 2012
• End date: May 31, 2015
• Field of knowledge: Biological Sciences - Biochemistry - Biochemistry of Microorganisms
• Principal Investigator: Carlos Alberto Labate
• Grantee: Mariana de Souza e Silva
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

Brazil is one of the largest producer and exporter of bioethanol in the last three decades, generating investment in research to improve the sugarcane. However, high production of bioethanol depends on other factors such as a yeast strain well adapted to adverse conditions present in the fermentation process. The yeasts population present in the industrial process of bioethanol may vary according to conditions of stress intrinsic to the process. However, isolates obtained after the process can be considered resistant to stress conditions and used as "starter" of the fermentation, because they are better adapted to adverse conditions, reducing the production of bioethanol falls due to contamination by other microorganisms or yeast death. In this context, will be the characterization of contaminant microflora in the fermentation process, focusing on the identification and classification of them, through the use of mass spectrometry, as well as screening of production compounds present in the process (the study of metabolites).

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BONATELLI, MARIA L.; QUECINE, MARIA C.; SILVA, MARIANA S.; LABATE, CARLOS A.. Characterization of the contaminant bacterial communities in sugarcane first-generation industrial ethanol production. FEMS Microbiology Letters, v. 364, n. 17, SEP 2017. (13/08431-0, 11/23816-0)