Second-generation ethanol process for integral use of hemicellulosic and cellulosic hydrolysates from diluted sulfuric acid pretreatment of sugarcane bagasse

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorBrazilian Biorenewables National Laboratory - LNBR/CNPEM-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Federal de Santa Catarina (UFSC)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorDionísio, S. R.-
Autor(es): dc.creatorSantoro, D. C.J.-
Autor(es): dc.creatorBonan, C. I.D.G.-
Autor(es): dc.creatorSoares, L. B.-
Autor(es): dc.creatorBiazi, L. E.-
Autor(es): dc.creatorRabelo, S. C. [UNESP]-
Autor(es): dc.creatorIenczak, J. L.-
Data de aceite: dc.date.accessioned2022-08-04T22:10:23Z-
Data de disponibilização: dc.date.available2022-08-04T22:10:23Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2021-11-14-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.fuel.2021.121290-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/221958-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/221958-
Descrição: dc.descriptionIn this work, a strategy to promote ethanol fermentation through the complete utilization of fermentable sugars released from sugarcane bagasse was proposed. Initially, the sugarcane bagasse was subjected to a diluted sulfuric acid pretreatment, leading to 89.5% of hemicellulose solubilization, in which 82% was recovered as monomeric sugars (xylose and arabinose) in the liquid stream. The cellulignin obtained was subjected to enzymatic hydrolysis, resulting in 51.2 and 95.08% of cellulose and hemicellulose yields, respectively. The C5-rich hemicellulosic hydrolysate was fermented to ethanol by the pentose-fermenting yeast Spathaspora passalidarum NRRL Y-27907, achieving an ethanol yield of 86.11%. The C6-rich enzymatic hydrolysate, on the other hand, was fermented by Saccharomyces cerevisiae CAT-1 through the application of a cell-recycle batch fermentation system. This strategy improved the overall fermentation performance throughout the cycles, with a substantial increase in the ethanol productivity of 361% from the first to the last batch. Based on a mass balance with input of 1000 kg of sugarcane bagasse and taking into account a complete pentose and hexose fermentation, 191.96 kg of ethanol could be produced from this integrated platform, which corresponded to 243.3 L of ethanol.-
Descrição: dc.descriptionBrazilian Biorenewables National Laboratory - LNBR/CNPEM, 10000 Giuseppe Máximo Scolfaro St-
Descrição: dc.descriptionSchool of Chemical Engineering State University of Campinas - UNICAMP, 500 Albert Einstein Av-
Descrição: dc.descriptionChemical Engineering and Food Engineering Department Santa Catarina Federal University – UFSC-
Descrição: dc.descriptionDepartment of Bioprocess and Biotechnology College of Agricultural Sciences São Paulo State University (UNESP), Botucatu-
Descrição: dc.descriptionDepartment of Bioprocess and Biotechnology College of Agricultural Sciences São Paulo State University (UNESP), Botucatu-
Idioma: dc.languageen-
Relação: dc.relationFuel-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectC5+C6 separated fermentation-
Palavras-chave: dc.subjectCell recycle-
Palavras-chave: dc.subjectDiluted acid pretreatment-
Palavras-chave: dc.subjectSugarcane bagasse-
Título: dc.titleSecond-generation ethanol process for integral use of hemicellulosic and cellulosic hydrolysates from diluted sulfuric acid pretreatment of sugarcane bagasse-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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