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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
23/03/2022 |
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Data da última atualização: |
24/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SQUINCA, P.; BILATTO, S.; BADINO, A. C.; FARINAS, C. S. |
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Afiliação: |
CRISTIANE SANCHEZ FARINAS, CNPDIA. |
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Título: |
Nanocellulose production in future biorefineries: An integrated approach using Tailor-Made enzymes. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
ACS Sustainable Chemistry & Engineering, v. 8, 2020. |
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Páginas: |
2277–2286 |
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DOI: |
https://dx.doi.org/10.1021/acssuschemeng.9b06790 |
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Idioma: |
Inglês |
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Conteúdo: |
The development of process engineering approaches to integrate the production of biofuels and high value-added biobased products, such as enzymes and nanocellulose, is crucial to improve the financial performance and sustainability of lignocellulosic biomass biorefineries. Here, the feasibility of applying enzymes produced on-site to obtain nanocellulose was evaluated using eucalyptus cellulose pulp as a model feedstock. A systematic analysis of the structural properties of the nanomaterials obtained after hydrolysis using a cellulolytic enzymatic complex with high endoglucanase specific activity (17.09 IU/mgprotein), produced by Aspergillus niger, followed by sonication, revealed that longer ball milling pretreatment and reaction times favored extraction of the cellulose nanocrystals (CNCs). The highest yield (24.6%) of CNCs was achieved using 96 h of enzymatic hydrolysis of the ball-milled cellulose pulp, followed by sonication for 5 min. The CNCs presented approximate lengths of 294.0 nm and diameters of 24.0 nm, and the crystallinity index increased from 57.5% to 78.3%, compared to the cellulose pulp that was only ball milled. These findings demonstrated that nanocelluloses could be successfully extracted using on-site produced enzymes and that the sustainable integrated process reported here could contribute to the development of the nascent biobase economy. |
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Palavras-Chave: |
Cellulose nanocrystals; Integrated biorefinery; On-site production; Solid-state fermentation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02122naa a2200229 a 4500
001 2141191
005 2024-01-24
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://dx.doi.org/10.1021/acssuschemeng.9b06790$2DOI
100 1 $aSQUINCA, P.
245 $aNanocellulose production in future biorefineries$bAn integrated approach using Tailor-Made enzymes.$h[electronic resource]
260 $c2022
300 $a2277–2286
520 $aThe development of process engineering approaches to integrate the production of biofuels and high value-added biobased products, such as enzymes and nanocellulose, is crucial to improve the financial performance and sustainability of lignocellulosic biomass biorefineries. Here, the feasibility of applying enzymes produced on-site to obtain nanocellulose was evaluated using eucalyptus cellulose pulp as a model feedstock. A systematic analysis of the structural properties of the nanomaterials obtained after hydrolysis using a cellulolytic enzymatic complex with high endoglucanase specific activity (17.09 IU/mgprotein), produced by Aspergillus niger, followed by sonication, revealed that longer ball milling pretreatment and reaction times favored extraction of the cellulose nanocrystals (CNCs). The highest yield (24.6%) of CNCs was achieved using 96 h of enzymatic hydrolysis of the ball-milled cellulose pulp, followed by sonication for 5 min. The CNCs presented approximate lengths of 294.0 nm and diameters of 24.0 nm, and the crystallinity index increased from 57.5% to 78.3%, compared to the cellulose pulp that was only ball milled. These findings demonstrated that nanocelluloses could be successfully extracted using on-site produced enzymes and that the sustainable integrated process reported here could contribute to the development of the nascent biobase economy.
653 $aCellulose nanocrystals
653 $aIntegrated biorefinery
653 $aOn-site production
653 $aSolid-state fermentation
700 1 $aBILATTO, S.
700 1 $aBADINO, A. C.
700 1 $aFARINAS, C. S.
773 $tACS Sustainable Chemistry & Engineering$gv. 8, 2020.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
08/02/2013 |
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Data da última atualização: |
05/03/2013 |
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Tipo da produção científica: |
Monitoramento/Zoneamento |
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Autoria: |
SIQUEIRA, K. B.; CARNEIRO, A. V. |
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Afiliação: |
KENNYA BEATRIZ SIQUEIRA, CNPGL; ALZIRO VASCONCELOS CARNEIRO, CNPGL. |
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Título: |
PRINCIPAIS INDICADORES: AGRÍCOLAS, v. 5, n. 38, 2012 |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Juiz de Fora: Embrapa Gado de Leite, 11 jan. 2012. |
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Páginas: |
21 p. |
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Idioma: |
Português |
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Palavras-Chave: |
Agricola; Conjuntura; Indicadores. |
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Categoria do assunto: |
E Economia e Indústria Agrícola |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/76251/1/2012-01-indicadores-agricola-0.pdf
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Marc: |
LEADER 00431nam a2200157 a 4500
001 1948861
005 2013-03-05
008 2012 bl uuuu u00u1 u #d
100 1 $aSIQUEIRA, K. B.
245 $aPRINCIPAIS INDICADORES$bAGRÍCOLAS, v. 5, n. 38, 2012
260 $aJuiz de Fora: Embrapa Gado de Leite, 11 jan. 2012.$c2012
300 $a21 p.
653 $aAgricola
653 $aConjuntura
653 $aIndicadores
700 1 $aCARNEIRO, A. V.
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