| Grant number: | 14/27055-2 |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| Start date: | November 01, 2015 |
| End date: | October 31, 2018 |
| Field of knowledge: | Biological Sciences - Microbiology - Applied Microbiology |
| Principal Investigator: | Silvio Silvério da Silva |
| Grantee: | Felipe Antonio Fernandes Antunes |
| Host Institution: | Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil |
Abstract In this project it is proposed to evaluate the processes intensification using a single reactor to obtain fermentable sugars from sugarcane bagasse and its fermentation into biomolecules, such as ethanol and xylitol. It will be used reactor of column operated in fluidized bed configuration in order to perform, in sequence, the steps of pretreatment, enzymatic hydrolysis and fermentation to produce ethanol and xylitol. Different conditions of alkaline and acid pretreatment of sugarcane bagasse in fluidized bed reactor will be evaluated separately using statistical design of experiments for determining conditions of each process. Sequentially, it will be performed separately saccharification of the remaining fractions of sugarcane bagasse corresponding the best conditions for each pretreatment operation, in order to use the cellulosic and hemicellulosic fractions of biomass in the fermentative process. After the saccharification, it will be used the yeast S. shehatae. UFMG 52.2, native C5 and C6 sugars fermenting to produce ethanol, and the yeast and C. guilliermondii FTI 20037, to xylitol production, both biomolecules produced in separate processes. Aiming a better understanding of the structural change of biomass among the pretreatment steps of biomass in fluidized bed reactor, the fractions of biomass will be structurally characterized using physicochemical techniques such as SEM; Raman spectroscopy, FTIR and FT-NIR. It is expected by this project to obtain results that strengthen the technology of biotechnological processes for ethanol and xylitol production from sugarcane bagasse in fluidized bed reactor, establishing important variables in an innovative fermentation process that will contribute to the development Brazilian biorefineries. | |
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