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Hydrolisis of sugar cane bagasse for hydrogen production in thermophilic condition

Grant number: 10/01237-6
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): May 01, 2010
Effective date (End): October 31, 2014
Field of knowledge:Biological Sciences - Microbiology - Applied Microbiology
Principal Investigator:Maria Bernadete Amâncio Varesche
Grantee:Regiane Priscila Ratti Sartori
Home Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated research grant:09/15984-0 - Bioenergy production from wastewaters and environmental fitting of liquid and solid wastes generated, AP.TEM


To crescent it energetic demand and the global warming they emphasize the need to research of energy sources alternative that could substitute fossil fuels and to avoid the worsening of the environmental problems. In this context, the hydrogen appears as a future alternative, your combustion results in heat and water, liberating larger amounts of energy that the conventional fuels. However, the major problem in utilization of hydrogen gas as a fuel is its unavailability in nature and the need for inexpensive production methods. Seeking to turn more attractive the hydrogen production the use of biological processes has been proposed in your generation, could use as matter the sewer domestic or industrial it excels.Cellulose is the most abundant substance in nature and considered to be promising source for producing of renewable energy. However, materials cellulosic are usually not readily fermentable by microorganisms for the yield of energy production, pretreatment and hydrolysis processes are often required to break this molecule. Nowadays, exist enzymes capable to degrade the cellulose, known as celullases or cellulolytic enzymes. The biological cellulose hydrolysis could be achieved by either growing cellulolytic microorganism or directly by the cellulolytic enzymes collected from those microorganism, after the hydrolysis of the molecule the microorganisms use the substratum to energy producing.Inside of these perspectives, the objective of this work will be to evaluate the biological production of the gas hydrogen for anaerobic bacteria fermentative in batch anaerobic reactor, for two concentrations different from cellulose, in the presence and absence of the cellulase enzyme. (AU)

Scientific publications (4)
(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)
RATTI, REGIANE PRISCILA; DELFORNO, TIAGO PALLADINO; SAKAMOTO, ISABEL KIMIKO; AMANCIO VARESCHE, MARIA BERNADETE. Thermophilic hydrogen production from sugarcane bagasse pretreated by steam explosion and alkaline delignification. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v. 40, n. 19, p. 6296-6306, MAY 25 2015. Web of Science Citations: 15.
RATTI, REGIANE PRISCILA; DELFORNO, TIAGO PALLADINO; OKADA, DAGOBERTO YUKIO; AMANCIO VARESCHE, MARIA BERNADETE. Bacterial communities in thermophilic H-2-producing reactors investigated using 16S rRNA 454 pyrosequencing. MICROBIOLOGICAL RESEARCH, v. 173, p. 10-17, 2015. Web of Science Citations: 11.
RATTI, REGIANE PRISCILA; BOTTA, LIVIA SILVA; SAKAMOTO, ISABEL KIMIKO; SILVA, EDSON LUIZ; AMANCIO VARESCHE, MARIA BERNADETE. Production of H-2 from cellulose by rumen microorganisms: effects of inocula pre-treatment and enzymatic hydrolysis. Biotechnology Letters, v. 36, n. 3, p. 537-546, MAR 2014. Web of Science Citations: 18.
RATTI, REGIANE PRISCILA; BOTTA, LIVIA SILVA; SAKAMOTO, ISABEL KIMIKO; AMANCIO VARESCHE, MARIA BERNADETE. Microbial diversity of hydrogen-producing bacteria in batch reactors fed with cellulose using leachate as inoculum. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v. 38, n. 23, p. 9707-9717, AUG 6 2013. Web of Science Citations: 22.

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