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Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
20/09/2019 |
Data da última atualização: |
11/11/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ESPÍRITO SANTO, M. C. do; CARDOSO, E. B.; GUIMARAES, F. E. G.; AZEVEDO, E. R. de; CUNHA, G. P. da; NOVOTNY, E. H.; PELLEGRINI, V. de O. A.; CHANDEL, A. K.; SILVEIRA, M. H. L.; POLIKARPOV, I. |
Afiliação: |
MELISSA CRISTINA DO ESPÍRITO SANTO, USP; ELIANO BRITO CARDOSO, CENTRO DE TECNOLOGIA CANAVIEIRA-SP; FRANCISCO EDUARDO GONTIJO GUIMARAES, USP; EDUARDO RIBEIRO DE AZEVEDO, USP; GIOVANNI PARO DA CUNHA, USP; ETELVINO HENRIQUE NOVOTNY, CNPS; VANESSA DE OLIVEIRA ARNOLDI PELLEGRINI, USP; ANUJ KUMAR CHANDEL, CENTRO DE TECNOLOGIA CANAVIEIRA-SP / USP; MARCOS HENRIQUE LUCIANO SILVEIRA, CENTRO DE TECNOLOGIA CANAVIEIRA-SP / FATEP-SP; IGOR POLIKARPOV, USP. |
Título: |
Multifaceted characterization of sugarcane bagasse under different steam explosion severity conditions leading to distinct enzymatic hydrolysis yields. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Industrial Crops & Products, v. 139, 111542, 2019. |
DOI: |
https://doi.org/10.1016/j.indcrop.2019.111542 |
Idioma: |
Inglês |
Conteúdo: |
Pretreatment is an important technological step for the lignocellulose conversion into fuels and biochemicals. Steam explosion (STEX) pretreatment is a fast method for affecting of plant cell wall architecture by a sharp pressure change at high temperatures. Here, eight different STEX conditions were applied to sugarcane bagasse (SCB) samples using auto-catalyzed and sulfuric acid catalyzed processes under a range of combined severity factors (CSFs; from 0.37 to 1.34). Our results showed that STEX of auto-catalyzed and sulfuric acid-catalyzed SCB led to the removal of 70-80 % and 82-92 % of xylose, respectively. Enzymatic hydrolysis of auto-catalyzed and sulfuric acid catalyzed bagasse was performed of washed and un-washed pretreated material to access the impact of soluble inhibitors on overall cellulosic sugars recovery. Auto-catalyzed bagasse after washing showed significantly higher glucan conversion (96%) than washed bagasse after pretreatment (62%). On the other hand, sulfuric acid-catalyzed bagasse after washing had 94% glucan conversion as opposed to unwashed material which again had significantly smaller conversion levels (73%). Physical properties and chemical composition were characterized using high performance liquid chromatography, X-ray diffraction, 13C solid-state nuclear magnetic resonance and confocal laser scanning microscopy. The obtained results contribute to understanding of an influence of the morphological changes resulting from pretreatments on the efficiency of enzymatic hydrolysis. We show that the changes in physical structure and chemical composition of the pretreated biomass might not be determined solely by combined severity factor of the pretreatments, but by the whole complexity of chemical modifications that different conditions of pretreatments introduce in the plant biomass samples. MenosPretreatment is an important technological step for the lignocellulose conversion into fuels and biochemicals. Steam explosion (STEX) pretreatment is a fast method for affecting of plant cell wall architecture by a sharp pressure change at high temperatures. Here, eight different STEX conditions were applied to sugarcane bagasse (SCB) samples using auto-catalyzed and sulfuric acid catalyzed processes under a range of combined severity factors (CSFs; from 0.37 to 1.34). Our results showed that STEX of auto-catalyzed and sulfuric acid-catalyzed SCB led to the removal of 70-80 % and 82-92 % of xylose, respectively. Enzymatic hydrolysis of auto-catalyzed and sulfuric acid catalyzed bagasse was performed of washed and un-washed pretreated material to access the impact of soluble inhibitors on overall cellulosic sugars recovery. Auto-catalyzed bagasse after washing showed significantly higher glucan conversion (96%) than washed bagasse after pretreatment (62%). On the other hand, sulfuric acid-catalyzed bagasse after washing had 94% glucan conversion as opposed to unwashed material which again had significantly smaller conversion levels (73%). Physical properties and chemical composition were characterized using high performance liquid chromatography, X-ray diffraction, 13C solid-state nuclear magnetic resonance and confocal laser scanning microscopy. The obtained results contribute to understanding of an influence of the morphological changes resulting from pretreatments on the e... Mostrar Tudo |
Thesagro: |
Bagaço; Biocombustível; Cana de Açúcar. |
Thesaurus Nal: |
Biofuels; Sugarcane bagasse. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02825naa a2200301 a 4500 001 2112344 005 2021-11-11 008 2019 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.indcrop.2019.111542$2DOI 100 1 $aESPÍRITO SANTO, M. C. do 245 $aMultifaceted characterization of sugarcane bagasse under different steam explosion severity conditions leading to distinct enzymatic hydrolysis yields.$h[electronic resource] 260 $c2019 520 $aPretreatment is an important technological step for the lignocellulose conversion into fuels and biochemicals. Steam explosion (STEX) pretreatment is a fast method for affecting of plant cell wall architecture by a sharp pressure change at high temperatures. Here, eight different STEX conditions were applied to sugarcane bagasse (SCB) samples using auto-catalyzed and sulfuric acid catalyzed processes under a range of combined severity factors (CSFs; from 0.37 to 1.34). Our results showed that STEX of auto-catalyzed and sulfuric acid-catalyzed SCB led to the removal of 70-80 % and 82-92 % of xylose, respectively. Enzymatic hydrolysis of auto-catalyzed and sulfuric acid catalyzed bagasse was performed of washed and un-washed pretreated material to access the impact of soluble inhibitors on overall cellulosic sugars recovery. Auto-catalyzed bagasse after washing showed significantly higher glucan conversion (96%) than washed bagasse after pretreatment (62%). On the other hand, sulfuric acid-catalyzed bagasse after washing had 94% glucan conversion as opposed to unwashed material which again had significantly smaller conversion levels (73%). Physical properties and chemical composition were characterized using high performance liquid chromatography, X-ray diffraction, 13C solid-state nuclear magnetic resonance and confocal laser scanning microscopy. The obtained results contribute to understanding of an influence of the morphological changes resulting from pretreatments on the efficiency of enzymatic hydrolysis. We show that the changes in physical structure and chemical composition of the pretreated biomass might not be determined solely by combined severity factor of the pretreatments, but by the whole complexity of chemical modifications that different conditions of pretreatments introduce in the plant biomass samples. 650 $aBiofuels 650 $aSugarcane bagasse 650 $aBagaço 650 $aBiocombustível 650 $aCana de Açúcar 700 1 $aCARDOSO, E. B. 700 1 $aGUIMARAES, F. E. G. 700 1 $aAZEVEDO, E. R. de 700 1 $aCUNHA, G. P. da 700 1 $aNOVOTNY, E. H. 700 1 $aPELLEGRINI, V. de O. A. 700 1 $aCHANDEL, A. K. 700 1 $aSILVEIRA, M. H. L. 700 1 $aPOLIKARPOV, I. 773 $tIndustrial Crops & Products$gv. 139, 111542, 2019.
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Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
29/08/2018 |
Data da última atualização: |
05/02/2024 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
PAIM, G. A.; LIMA, Y. S.; SILVA, E. M. S.; CORREIA, R. C. |
Afiliação: |
G. A. PAIM, UNIVASF; Y. S. LIMA, Universidade Estadual de Feira de Santana; E. M. S. SILVA, UNIVASF; REBERT COELHO CORREIA, CPATSA. |
Título: |
Levantamento socioeconômico e perfil dos apicultores do município de Remanso, BA. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE APICULTURA, 22.; CONGRESSO BRASILEIRO DE MELIPONICULTURA, 7., 2018, Joinville, SC. Polinização, tecnologia oportunidades e desafio para o criador de abelha no Brasil: anais. Joinville, SC: CBA, 2018. |
Idioma: |
Português |
Conteúdo: |
O presente estudo objetivou realizar um levantamento socioeconômico, traçando o perfil dos apicultores situados no munícipio de Remanso - BA. |
Palavras-Chave: |
Perfil do apicultor. |
Thesagro: |
Abelha; Agricultura Familiar; Apicultura; Inseto. |
Thesaurus NAL: |
Honey bees. |
Categoria do assunto: |
O Insetos e Entomologia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/182065/1/Rebert.pdf
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Marc: |
LEADER 00943nam a2200217 a 4500 001 2094697 005 2024-02-05 008 2018 bl uuuu u00u1 u #d 100 1 $aPAIM, G. A. 245 $aLevantamento socioeconômico e perfil dos apicultores do município de Remanso, BA.$h[electronic resource] 260 $aIn: CONGRESSO BRASILEIRO DE APICULTURA, 22.; CONGRESSO BRASILEIRO DE MELIPONICULTURA, 7., 2018, Joinville, SC. Polinização, tecnologia oportunidades e desafio para o criador de abelha no Brasil: anais. Joinville, SC: CBA$c2018 520 $aO presente estudo objetivou realizar um levantamento socioeconômico, traçando o perfil dos apicultores situados no munícipio de Remanso - BA. 650 $aHoney bees 650 $aAbelha 650 $aAgricultura Familiar 650 $aApicultura 650 $aInseto 653 $aPerfil do apicultor 700 1 $aLIMA, Y. S. 700 1 $aSILVA, E. M. S. 700 1 $aCORREIA, R. C.
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