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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
24/06/2013 |
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Data da última atualização: |
07/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DELABONA, P. da S.; PIROTA, R. D. P. B.; CODIMA, C. A.; TREMACOLDI, C. R.; RODRIGUES, A.; FARINAS, C. S. |
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Afiliação: |
PRISCILA DA SILVA DELABONA, CNPDIA/UFSCAR; ROSANGELA DONIZETE PERPETUA BUZON PIROTA, CNPDIA/UFSCAR; CARLA ALOIA CODIMA, CNPDIA/UFSCAR; CELIA REGINA TREMACOLDI, CPATU; ANDRÉ RODRIGUES, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; CRISTIANE SANCHEZ FARINAS, CNPDIA. |
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Título: |
Effect of initial moisture content on two Amazon rainforest Aspergillus strains cultivated on agro-industrial residues: Biomass-degrading enzymes production and characterization. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Industrial Crops and Products, v. 42, p. 236-242, 2013. |
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DOI: |
http://dx.doi.org/10.1016/j.indcrop.2012.05.035 |
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Idioma: |
Inglês |
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Conteúdo: |
Production of biomass-degrading enzymes using inexpensive and readily available agricultural residues as substrates for solid-state fermentation (SSF) can contribute to a broader application of enzymes for the conversion of biomass into biofuels and chemicals. Among the operational parameters that affect SSF process efficiency, moisture content is one of the most important. This work evaluates the effect of initial moisture content on two Aspergillus strains (Aspergillus niger P47C3 and Aspergillus fumigatus P40M2), isolated from the Amazon rainforest and grown under SSF. Analyses were made of the biomass-degrading enzymes produced using different agro-industrial residues as carbon sources (wheat bran, sugar cane bagasse, soybean bran, and orange bagasse). The enzymatic complex produced by a selected strain of A. fumigatus was characterized in terms of optimum pH and temperature, and thermal stability. The most effective carbon sources for multienzyme production during Aspergillus cultivation were wheat and soybean bran, as well as a 1:1 mixture of sugar cane bagasse and wheat bran. Much higher activity values were achieved for β-glucosidase (105.8 IU/g) and xylanase (1055.6 IU/g) when wheat bran with 50% initial moisture content was used as substrate. Under this condition, endoglucanase and total cellulase activity values were 56.6 IU/g and 5.0 FPU/g, respectively. Characterization of the crude enzymatic complex showed that the A. fumigatus P40M2 enzymes were active in the acidic pH range, with maximal activities at the range of 50?65 °C, demonstrating the potential of the organism for the production of acidophilic and thermophilic biomass-degrading enzymes. MenosProduction of biomass-degrading enzymes using inexpensive and readily available agricultural residues as substrates for solid-state fermentation (SSF) can contribute to a broader application of enzymes for the conversion of biomass into biofuels and chemicals. Among the operational parameters that affect SSF process efficiency, moisture content is one of the most important. This work evaluates the effect of initial moisture content on two Aspergillus strains (Aspergillus niger P47C3 and Aspergillus fumigatus P40M2), isolated from the Amazon rainforest and grown under SSF. Analyses were made of the biomass-degrading enzymes produced using different agro-industrial residues as carbon sources (wheat bran, sugar cane bagasse, soybean bran, and orange bagasse). The enzymatic complex produced by a selected strain of A. fumigatus was characterized in terms of optimum pH and temperature, and thermal stability. The most effective carbon sources for multienzyme production during Aspergillus cultivation were wheat and soybean bran, as well as a 1:1 mixture of sugar cane bagasse and wheat bran. Much higher activity values were achieved for β-glucosidase (105.8 IU/g) and xylanase (1055.6 IU/g) when wheat bran with 50% initial moisture content was used as substrate. Under this condition, endoglucanase and total cellulase activity values were 56.6 IU/g and 5.0 FPU/g, respectively. Characterization of the crude enzymatic complex showed that the A. fumigatus P40M2 enzymes were active in... Mostrar Tudo |
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Palavras-Chave: |
Resíduo agroindustrial. |
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Thesagro: |
Biomassa. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02498naa a2200229 a 4500
001 1960431
005 2022-11-07
008 2013 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.indcrop.2012.05.035$2DOI
100 1 $aDELABONA, P. da S.
245 $aEffect of initial moisture content on two Amazon rainforest Aspergillus strains cultivated on agro-industrial residues$bBiomass-degrading enzymes production and characterization.$h[electronic resource]
260 $c2013
520 $aProduction of biomass-degrading enzymes using inexpensive and readily available agricultural residues as substrates for solid-state fermentation (SSF) can contribute to a broader application of enzymes for the conversion of biomass into biofuels and chemicals. Among the operational parameters that affect SSF process efficiency, moisture content is one of the most important. This work evaluates the effect of initial moisture content on two Aspergillus strains (Aspergillus niger P47C3 and Aspergillus fumigatus P40M2), isolated from the Amazon rainforest and grown under SSF. Analyses were made of the biomass-degrading enzymes produced using different agro-industrial residues as carbon sources (wheat bran, sugar cane bagasse, soybean bran, and orange bagasse). The enzymatic complex produced by a selected strain of A. fumigatus was characterized in terms of optimum pH and temperature, and thermal stability. The most effective carbon sources for multienzyme production during Aspergillus cultivation were wheat and soybean bran, as well as a 1:1 mixture of sugar cane bagasse and wheat bran. Much higher activity values were achieved for β-glucosidase (105.8 IU/g) and xylanase (1055.6 IU/g) when wheat bran with 50% initial moisture content was used as substrate. Under this condition, endoglucanase and total cellulase activity values were 56.6 IU/g and 5.0 FPU/g, respectively. Characterization of the crude enzymatic complex showed that the A. fumigatus P40M2 enzymes were active in the acidic pH range, with maximal activities at the range of 50?65 °C, demonstrating the potential of the organism for the production of acidophilic and thermophilic biomass-degrading enzymes.
650 $aAmazonia
650 $aBiomassa
653 $aResíduo agroindustrial
700 1 $aPIROTA, R. D. P. B.
700 1 $aCODIMA, C. A.
700 1 $aTREMACOLDI, C. R.
700 1 $aRODRIGUES, A.
700 1 $aFARINAS, C. S.
773 $tIndustrial Crops and Products$gv. 42, p. 236-242, 2013.
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| 8. |  | BRANCIO, P. A.; NASCIMENTO JUNIOR, D. do; REGAZZI, A. J.; MORAES, E. A. de; LEITE, G. G. Avaliacao de pastagem nativa dos cerrados submetida a queima anual. 1. Composicao botanica da dieta de bovinos. Revista Brasileira de Zootecnia, Vicosa, v.26, n.3, p.429-437, 1997.| Biblioteca(s): Embrapa Cerrados. |
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| 9. | | BRANCIO, P. A.; NASCIMENTO JUNIOR, D. do; MORAES, E. A. de; REGAZZI, A. J.; LEITE, G. G. Avaliacao de pastagem nativa dos cerrados submetida a queima anual. 2. Qualidade da dieta de bovinos. Revista Brasileira de Zootecnia, Vicosa, v.26, n.3, p.438-442, 1997.| Biblioteca(s): Embrapa Cerrados. |
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| 12. | | BRANCIO, P. A.; NASCIMENTO JUNIOR, D. do; MORAES, E. A. de; REGAZZI, A. J.; LEITE, G. G. Qualidade da dieta de bovinos em pastagem nativa dos cerrados submetida a queima anual. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 33., 1996, Fortaleza, CE. Anais... Fortaleza: SBZ, 1996. v.2. p.227-229.| Biblioteca(s): Embrapa Cerrados. |
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| 13. | | BRANCIO, P. A.; NASCIMENTO JUNIOR, D. do; EUCLIDES, V. P. B.; REGAZZI, A. J.; ALMEIDA, R. G. de; FONSECA, D. M. da. Avaliação de tres cultivares de Panicum maximum Jacq. sob pastejo 1 - disponibilidade de forragem, altura e profundidade pastejada. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 37., 2000, Viçosa. Resumos dos trabalhos apresentados. Anais. Viçosa: SBZ, 2000. p.41. CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 14. | | BRÂNCIO, P. A.; EUCLIDES, V. P. B.; NASCIMENTO JUNIOR, D. do; REGAZZI, A. J.; ALMEIDA, R. G. de; FONSECA, D. M. da. Avaliação de três cultivares de Panicum maximum Jacq. sob pastejo. 2 - Proporcões de folha, talo e material morto da pastagem e seletividade em pastejo. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 37., 2000, Viçosa, MG. Anais... Viçosa, MG: SBZ, 2000. p. 41.| Biblioteca(s): Embrapa Gado de Corte. |
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| 15. | | BRANCIO, P. A.; NASCIMENTO JUNIOR, D. do; EUCLIDES, V. P. B.; REGAZZI, A. J.; ALMEIDA, R. G. de; FONSECA, D. M. da. Avaliacao de tres cultivares de Panicum maximum Jacq. sob pastejo 3-Tempo de Pastejo. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 37., 2000, Vicosa. Resumos dos trabalhos apresentados. Anais. Vicosa: SBZ, 2000. p.40 CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 16. | | BRANCIO, P. A.; EUCLIDES, V. P. B.; NASCIMENTO JUNIOR, D. do; REGAZZI, A. J.; ALMEIDA, R. G. de; FONSECA, D. M. da. Avaliacao de tres cultivares de Panicum maximum Jacq. sob pastejo 4. Taxa de bocado. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 37., 2000, Vicosa. Resumos dos trabalhos apresentados. Anais. Vicosa: SBZ, 2000. p.40 CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 17. | | BRANCIO, P. A.; NASCIMENTO JUNIOR, D. do; EUCLIDES, V. P. B.; REGAZZI, A. J.; ALMEIDA, R. G. de; FONSECA, D. M. da. Avaliacao de tres cultivares de Panicum maximum Jacq. sob pastejo 5. Tamanho do Bocado. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 37., 2000, Vicosa. Resumos dos trabalhos apresentados. Anais. Vicosa: SBZ, 2000. p.39. CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 18. | | BRANCIO, P. A.; EUCLIDES, V. P. B.; NASCIMENTO JUNIOR, D. do; REGAZZI, A. J.; ALMEIDA, R. G. de; FONSECA, D. M. da. Avaliacao de tres cultivares de Panicum maximum Jacq. sob pastejo. 6 - Estimativa de consumo pelo metodo do comportamento animal. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 37., 2000, Vicosa. Resumos dos trabalhos apresentados. Anais. Vicosa: SBZ, 2000. p.39. CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 19. | | BRÂNCIO, P. A.; EUCLIDES, V. P. B.; NASCIMENTO JUNIOR, D. do; FONSECA, D. M. da; ALMEIDA, R. G. de; MACEDO, M. C. M.; BARBOSA, R. A. Avaliação de três cultivares de Panicum maximum Jacq. sob pastejo: comportamento ingestivo de bovinos. Revista Brasileira de Zootecnia, v. 32, n. 5, p. 1045-1053, out. 2003.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 20. | | BRÂNCIO, P. A.; NASCIMENTO JUNIOR, D. do; EUCLIDES, V. P. B.; FONSECA, D. M. da; ALMEIDA, R. G. de; MACEDO, M. C. M.; BARBOSA, R. A. Avaliação de três cultivares de Panicum maximum Jacq. sob pastejo: composição da dieta, consumo de matéria seca e ganho de peso animal. Revista Brasileira de Zootecnia, v. 32, n. 5, p. 1037-1044, out. 2003.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
| Biblioteca(s): Embrapa Gado de Corte. |
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