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| Registros recuperados : 42 | |
| 3. |  | FREITAS, J. V. de; HIGUCHI, N. Projecoes da distribuicao diametrica de uma floresta tropical umida de terra firme pela cadeia de Markov. In: CONGRESSO FLORESTAL PANAMERICANO, 1.; CONGRESSO FLORESTAL BRASILEIRO, 7., 1993, Curitiba. Floresta para o Desenvolvimento: Política, Ambiente, Tecnologia e Mercado: anais. São Paulo: SBS; [S.l.]: SBEF, 1993. v. 2, p. 545- 548.| Biblioteca(s): Embrapa Florestas. |
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| 7. | | FREITAS, J. V. de; MOREIRA, A. L. B.; CUNHA, U. S. da. Aspectos da represntação da relação altura / diâmetro em inventários florestais comerciais em florestas naturais tropicais. In: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD-ROM. Autoria bilíngue: CONGRESSO E EXPOSICAO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba.| Biblioteca(s): Embrapa Florestas. |
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| 11. | | CUNHA, U. S. da; MACHADO, S. do A.; FIGUEIREDO FILHO, A.; FREITAS, J. V. de. Diameter structure and phytosociological frequency of a "terra firme" amazon forest, before and after selective cutting. Floresta, Curitiba, v. 42, n. 2, p. 293-304, abr./jun. 2012.| Biblioteca(s): Embrapa Florestas. |
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| 12. | | CUNHA, U. S. da; FREITAS, J. V. de; LÜDKE, F.; SILVA, W. dos S. Estudo de tempos e movimentos das operações de extração e transporte de madeira para uso em serraria e laminação, projeto Santa Rita - Gethal, Itacoatiara - AM, Convênio FUA/Gethal. In: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD-ROM. Autoria bilíngue: CONGRESSO E EXPOSICAO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba.| Biblioteca(s): Embrapa Florestas. |
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| 13. | | FREITAS, J. V. de; MOREIRA, A. L. B.; CUNHA, U. S. da; SILVA, R. P. da. Estudo comparativo da precisão de 5 instrumentos medidores de altura de árvores em florestas naturais tropicais. In: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD-ROM. Autoria bilíngue: CONGRESSO E EXPOSICAO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba.| Biblioteca(s): Embrapa Florestas. |
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| 14. | | SANTOS, A. T. dos; MATTOS, P. P. de; BRAZ, E. M.; MACHADO, S. do A.; FREITAS, J. V. de. Estrutura diamétrica de Bauhinia forficata, Commiphora leptophloeos, Croton sonderianus e Pityrocarpa moniliformis no bioma Caatinga. In: CONFERÊNCIA IUFRO 2023 AMÉRICA LATINA, 2023, Curitiba. Anais... Colombo: Embrapa Florestas, 2023. p. 118. (Embrapa Florestas. Eventos técnicos & científicos, 2).| Biblioteca(s): Embrapa Florestas. |
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| 15. | | GONÇALVES, S. L. F.; FREITAS, J. V. de; VALE, P. R. P. do; BARROS, J. B.; DINIZ, J. S.; SILVA, I. C.; FERREIRA, A. S. Análise do fluxo da produção madeireira das empresas certificadas pelo Forest Stewardship Council (FSC) no Amazonas no período 1999-2000. In: CONGRESSO IBERO-AMERICANO DE PESQUISA E DESENVOLVIMENTO DE PRODUTOS FLORESTAIS, 2.; SEMINÁRIO EM TECNOLOGIA DA MADEIRA E PRODUTOS FLORESTAIS NÃO MADEIRÁVEIS, 1., 2002, Curitiba. Aproveitamento tecnológico da floresta ibero-americana: fonte de suprimento para o mundo: anais. [Curitiba]: Universidade Federal do Paraná: Fundação de Pesquisas Florestais do Paraná, [2002?]. 1 CD-ROM.| Biblioteca(s): Embrapa Florestas. |
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| 17. | | LUZ, N. B. da; OLIVEIRA, Y. M. M. de; ROSOT, M. A. D.; GARRASTAZU, M. C.; FRANCISCON, L.; MESQUITA JÚNIOR, H. N. de; FREITAS, J. V. de. Classificação híbrida de imagens Landsat-8 e RapidEye para o mapeamento do uso e cobertura da terra nas Unidades Amostrais de Paisagem do Inventário Florestal Nacional do Brasil. In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 17., 2015, João Pessoa. Anais... São José dos Campos: INPE, 2015. p. 7222-7230. Disponível online.| Biblioteca(s): Embrapa Florestas. |
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| 18. | | LUZ, N. B. da; OLIVEIRA, Y. M. M. de; ROSOT, M. A. D.; GARRASTAZU, M. C.; MATTOS, P. P. de; FRANCISCON, L.; FREITAS, J. V. de. Classificação de imagens orientada a objetos como suporte ao componente geoespacial do Inventário Florestal Nacional Brasileiro. In: SIMPÓSIO NACIONAL DE INVENTÁRIO FLORESTAL, 3., 2014, Manaus. Anais... Brasília, DF: Serviço Florestal Brasileiro, 2014. p. 126. Disponível online. Resumo.| Biblioteca(s): Embrapa Florestas. |
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| 19. | | LUZ, N. B. da; GARRASTAZU, M. C.; ROSOT, M. A. D.; MARAN, J. C.; OLIVEIRA, Y. M. M. de; FRANCISCON, L.; CARDOSO, D. J.; FREITAS, J. V. de. Brazilian National Forest Inventory: a landscape scale approach to monitoring and assessing forested landscapes. Pesquisa Florestal Brasileira, Colombo, v. 38, e201701493, 2018. 14 p. Artigo de revisão.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 42 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
23/06/2021 |
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Data da última atualização: |
10/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
PINTO, A. S. S.; BRONDI, M. G.; FREITAS, J. V. de; FURLAN, F. F.; RIBEIRO, M. P. A.; GIORDANO, R. C.; FARINAS, C. S. |
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Afiliação: |
CRISTIANE SANCHEZ FARINAS, CNPDIA. |
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Título: |
Mitigating the negative impact of soluble and insoluble lignin in biorefineries. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Renewable Energy, v. 173, 2021. |
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Páginas: |
1017-1026 |
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ISSN: |
0960-1481 |
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DOI: |
https://doi.org/10.1016/j.renene.2021.03.137 |
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Idioma: |
Inglês |
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Conteúdo: |
The presence of inhibitors is still an economic bottleneck that needs to be resolved in order to make the biorefineries feasible, requiring the development of technologies capable of improving their competitiveness in the biofuel marketplace. Soluble and insoluble lignin can impair the enzymatic hydrolysis process by inhibition, deactivation, and unproductive adsorption of enzymes. Washing the pretreated biomass or using lignin-blocking additives during saccharification could mitigate these negative effects in future biorefineries. Here, an investigation was performed of the combined mitigation processes, in terms of their technical and economic feasibility in an integrated first and second generation (1G2G) sugarcane biorefinery. Evaluation was made of the impacts of biomass washing and soybean protein addition, separately or in combination, on glucose yields for enzymatic hydrolysis in the presence of high (liquor) and low (buffer) concentrations of soluble inhibitors/deactivators. Combining washing and soybean protein addition provided the highest glucose yields, with an increase of up to 50%. The effect of the mitigation processes could be explained by a combination of catalytic mechanisms acting on both soluble and insoluble lignin. In an industrial context, biomass washing (90 #1;C, 15% (w/w) solids, 3 steps) followed by soybean protein addition (12% (w/v) solids) provided a cost-competitive methodology for bioethanol production, with an estimated net present value of US$ 9.16 107 , optimizing hydrolysis process in the 1G2G sugarcane biorefinery. MenosThe presence of inhibitors is still an economic bottleneck that needs to be resolved in order to make the biorefineries feasible, requiring the development of technologies capable of improving their competitiveness in the biofuel marketplace. Soluble and insoluble lignin can impair the enzymatic hydrolysis process by inhibition, deactivation, and unproductive adsorption of enzymes. Washing the pretreated biomass or using lignin-blocking additives during saccharification could mitigate these negative effects in future biorefineries. Here, an investigation was performed of the combined mitigation processes, in terms of their technical and economic feasibility in an integrated first and second generation (1G2G) sugarcane biorefinery. Evaluation was made of the impacts of biomass washing and soybean protein addition, separately or in combination, on glucose yields for enzymatic hydrolysis in the presence of high (liquor) and low (buffer) concentrations of soluble inhibitors/deactivators. Combining washing and soybean protein addition provided the highest glucose yields, with an increase of up to 50%. The effect of the mitigation processes could be explained by a combination of catalytic mechanisms acting on both soluble and insoluble lignin. In an industrial context, biomass washing (90 #1;C, 15% (w/w) solids, 3 steps) followed by soybean protein addition (12% (w/v) solids) provided a cost-competitive methodology for bioethanol production, with an estimated net present value of ... Mostrar Tudo |
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Palavras-Chave: |
1G2G ethanol; Pretreatment byproducts; Soybean protein addition; Techno-economic assessment; Washing process. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02432naa a2200289 a 4500
001 2132515
005 2022-06-10
008 2021 bl uuuu u00u1 u #d
022 $a0960-1481
024 7 $ahttps://doi.org/10.1016/j.renene.2021.03.137$2DOI
100 1 $aPINTO, A. S. S.
245 $aMitigating the negative impact of soluble and insoluble lignin in biorefineries.$h[electronic resource]
260 $c2021
300 $a1017-1026
520 $aThe presence of inhibitors is still an economic bottleneck that needs to be resolved in order to make the biorefineries feasible, requiring the development of technologies capable of improving their competitiveness in the biofuel marketplace. Soluble and insoluble lignin can impair the enzymatic hydrolysis process by inhibition, deactivation, and unproductive adsorption of enzymes. Washing the pretreated biomass or using lignin-blocking additives during saccharification could mitigate these negative effects in future biorefineries. Here, an investigation was performed of the combined mitigation processes, in terms of their technical and economic feasibility in an integrated first and second generation (1G2G) sugarcane biorefinery. Evaluation was made of the impacts of biomass washing and soybean protein addition, separately or in combination, on glucose yields for enzymatic hydrolysis in the presence of high (liquor) and low (buffer) concentrations of soluble inhibitors/deactivators. Combining washing and soybean protein addition provided the highest glucose yields, with an increase of up to 50%. The effect of the mitigation processes could be explained by a combination of catalytic mechanisms acting on both soluble and insoluble lignin. In an industrial context, biomass washing (90 #1;C, 15% (w/w) solids, 3 steps) followed by soybean protein addition (12% (w/v) solids) provided a cost-competitive methodology for bioethanol production, with an estimated net present value of US$ 9.16 107 , optimizing hydrolysis process in the 1G2G sugarcane biorefinery.
653 $a1G2G ethanol
653 $aPretreatment byproducts
653 $aSoybean protein addition
653 $aTechno-economic assessment
653 $aWashing process
700 1 $aBRONDI, M. G.
700 1 $aFREITAS, J. V. de
700 1 $aFURLAN, F. F.
700 1 $aRIBEIRO, M. P. A.
700 1 $aGIORDANO, R. C.
700 1 $aFARINAS, C. S.
773 $tRenewable Energy$gv. 173, 2021.
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