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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.creator | Igbojionu, Longinus Ifeanyi [UNESP] | - |
Autor(es): dc.creator | Laluce, Cecilia [UNESP] | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:54:04Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:54:04Z | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2020-12-31 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.1007/s13399-021-01544-4 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/208676 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/208676 | - |
Descrição: dc.description | Sugarcane bagasse—a lignocellulosic material derived from sugarcane after crushing and extracting of its juice—is a promising feedstock for bioethanol production. The current study presented a two-step alkaline and acid pretreatment of sugarcane bagasse using sodium hydroxide and maleic acid as a strategy to enhance enzymatic digestibility of sugarcane bagasse. The two-step alkaline and acid pretreatment resulted to a significant increase in glucan content (69.72%) with accompanying decreases in xylan (12.99%) and lignin (4.89%) contents. Preliminary study on enzymatic hydrolysis of the two-step alkaline and acid-pretreated sugarcane bagasse with low solid loading and low cellulase concentrations resulted to high glucose yields. Optimization of high-solid enzymatic hydrolysis of two-step alkaline and acid-pretreated sugarcane bagasse was executed based on Box-Behnken design (BBD). BBD—a response surface methodology—is a powerful method that can be used to test several parameters by applying a minimum number of experimental trials. The optimal level of process variables as indicated by the statistical model namely solid loading (20%, w/w), incubation time (72 h), enzyme loading (2 FPU/g glucan), and substrate feeding (mode 2) were validated. Optimization of the process parameters resulted to 61.85% of glucose yield which was close to its predicted value (65.71%). The current study highlights the potential of high-solid enzymatic hydrolysis using two-step alkaline and acid-pretreated sugarcane bagasse for efficient fermentable sugar production. | - |
Descrição: dc.description | Bioenergy Research Institute (IPBEN) Institute of Chemistry São Paulo State University (UNESP), Rua Professor Francisco Degni, 55, Araraquara | - |
Descrição: dc.description | Bioenergy Research Institute (IPBEN) Institute of Chemistry São Paulo State University (UNESP), Rua Professor Francisco Degni, 55, Araraquara | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Biomass Conversion and Biorefinery | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | Bioethanol | - |
Palavras-chave: dc.subject | Box-Behnken design | - |
Palavras-chave: dc.subject | High-solid enzymatic hydrolysis | - |
Palavras-chave: dc.subject | Optimization | - |
Palavras-chave: dc.subject | Sugarcane bagasse | - |
Palavras-chave: dc.subject | Two-step pretreatment | - |
Título: dc.title | Optimization of high-solid enzymatic hydrolysis of two-step alkaline and dilute acid-pretreated sugarcane bagasse at low enzyme loadings by response surface methodology | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
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