Effect of the Sugarcane Bagasse Deacetylation in the Pentoses Fermentation Process

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorBrazilian Center for Research in Energy and Materials (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.creatorLima, Cleilton Santos-
Autor(es): dc.creatorNeitzel, Thiago-
Autor(es): dc.creatorde Oliveira Pereira, Isabela-
Autor(es): dc.creatorRabelo, Sarita Cândida [UNESP]-
Autor(es): dc.creatorIenczak, Jaciane Lutz-
Autor(es): dc.creatorRoberto, Inês Conceição-
Autor(es): dc.creatorRocha, George J. M.-
Data de aceite: dc.date.accessioned2022-02-22T00:45:08Z-
Data de disponibilização: dc.date.available2022-02-22T00:45:08Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s12155-020-10243-3-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205733-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205733-
Descrição: dc.descriptionBiomass alkaline deacetylation prior to acid pretreatment can be a promising alternative to reduce the toxicity of hemicellulosic hydrolysates and improve second-generation bioethanol production. In this paper, the effect of alkaline deacetylation of sugarcane bagasse on bioethanol production by Spathaspora passalidarum was evaluated. Sugarcane bagasse deacetylated hemicellulosic hydrolysate (DHH) was processed using the following sequence: (1) deacetylation (0.4%, w/v NaOH, 70 °C, 3 h) and (2) acid pretreatment (0.5% (v/v) of H2SO4, 140 °C, 15 min). Non-deacetylated, hemicellulosic hydrolysate (HH), was obtained applying only acid pretreatment (0.5% (v/v) of H2SO4, 140 °C, 15 min). Biomass deacetylation reduced the content of acetic acid and some phenolic compounds in the hydrolysate (DHH) compared to acid pretreatment (HH), which resulted in its low toxicity. Thus, the bioethanol production with DHH was of 16.92 g L−1, whereas only 1.3 g L−1 of bioethanol was obtained with HH fermentation. Deacetylation process provided a 13-fold increase in bioethanol production by S. passalidarum, showing that alkaline deacetylation followed by sulfuric acid pretreatment is a promising strategy to increase bioethanol production. This procedure provided a simple and practical alternative to the classic methods of detoxification of hemicellulosic hydrolysate from sugarcane bagasse.-
Descrição: dc.descriptionDepartment of Biotechnology Engineering College of Lorena University of São Paulo (USP), Campinho Municipal Road, s/n°, Campinho-
Descrição: dc.descriptionBrazilian Biorenewables National Laboratory (LNBR) Brazilian Center for Research in Energy and Materials (CNPEM)-
Descrição: dc.descriptionProgram in Bioenergy – Faculty of Food Engineering University of Campinas (UNICAMP), Rua Monteiro Lobato 80-
Descrição: dc.descriptionDepartment of Chemical Engineering and Food Engineering University Campus – CTC Federal University of Santa Catarina (UFSC)-
Descrição: dc.descriptionDepartment of Bioprocess and Biotechnology College of Agricultural Sciences São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Bioprocess and Biotechnology College of Agricultural Sciences São Paulo State University (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationBioenergy Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBioethanol-
Palavras-chave: dc.subjectBiomass-
Palavras-chave: dc.subjectDetoxification step-
Palavras-chave: dc.subjectInhibitors-
Palavras-chave: dc.subjectSpathaspora passalidarum-
Título: dc.titleEffect of the Sugarcane Bagasse Deacetylation in the Pentoses Fermentation Process-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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