Lignin surface area influenced by biomass heterogeneity and pretreatment process

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorde Azevedo, Gabriel Oliveira-
Autor(es): dc.creatorShimizu, Felipe Lange-
Autor(es): dc.creatorFontes, Luciana Coelho-
Autor(es): dc.creatorContiero, Jonas-
Autor(es): dc.creatorBrienzo, Michel-
Data de aceite: dc.date.accessioned2025-08-21T17:35:18Z-
Data de disponibilização: dc.date.available2025-08-21T17:35:18Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s13399-021-02264-5-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/230161-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/230161-
Descrição: dc.descriptionBiomass conversion is challenged by the heterogeneity and lignin, a component that acts as a barrier to the enzymatic hydrolysis of polysaccharides. This study evaluated the effect of pretreatments on different fractions of sugarcane biomass lignin and cellulose exposure. Two different methods were used: dilute sulfuric acid (5%, 10%, and 20% w/w at 121 °C/30 min) and partial delignification with sodium chlorite (30% m/m at 70 °C/1 h) to reduce the exposed surface of lignin. The surface area of ​​lignin was obtained through the cationic dye Azure B, and cellulose access by enzymatic hydrolysis (15 FPU/g for 24 h—Cellic Cetec 2—Novozymes) was employed. Acid pretreatment was efficient in hemicellulose removal, and delignification removed lignin from all the biomasses fractions. Azure B dyes determined the surface area filled with lignin after dilute sulfuric acid pretreatment and partial delignification. The sample with the largest total surface area of lignin (52 m2/g of material) was the leaf pretreated with 5% sulfuric acid. The external fraction presented the largest specific surface area (240 m2/g) after partial delignification. These results indicate that reducing the lignin surface area enhances the glucose yield of enzymatic hydrolysis.-
Descrição: dc.descriptionInstitute for Research in Bioenergy (IPBEN) University of São Paulo State (UNESP), SP-
Descrição: dc.descriptionBiochemistry and Microbiology Department University of São Paulo State (UNESP), SP-
Descrição: dc.descriptionInstitute for Research in Bioenergy (IPBEN) University of São Paulo State (UNESP), SP-
Descrição: dc.descriptionBiochemistry and Microbiology Department University of São Paulo State (UNESP), SP-
Idioma: dc.languageen-
Relação: dc.relationBiomass Conversion and Biorefinery-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAzure B-
Palavras-chave: dc.subjectCellulose accessibility-
Palavras-chave: dc.subjectDiluted acid-
Palavras-chave: dc.subjectSugarcane biomass-
Palavras-chave: dc.subjectXylose-
Título: dc.titleLignin surface area influenced by biomass heterogeneity and pretreatment process-
Tipo de arquivo: dc.typelivro digital-
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