Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus

Detalhes bibliográficos
Autor(a) principal: Castiglioni, Gabriel Luis
Data de Publicação: 2014
Outros Autores: Stanescu, George, Rocha, Luiz Alberto Oliveira, Costa, Jorge Alberto Vieira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da FURG (RI FURG)
Texto Completo: http://repositorio.furg.br/handle/1/4539
Resumo: This is an experimental, analytical and numerical study to optimize the biosurfactants production in solid-state fermentation of a medium containing rice straw and minced rice bran inoculated with Aspergillus fumigatus. The goal of this work was to analytically model the biosurfactants production in solid-state fermentation into a column fixed bed bioreactor. The Least-Squares Method was used to adjust the emulsification activity experimental values to a quadratic function semi-empirical model. Control variables were nutritional conditions, the fermentation time and the aeration. The mathematical model is validated against experimental results and then used to predict the maximum emulsification activity for different nutritional conditions and aerations. Based on the semi-empirical model the maximum emulsification activity with no additional hydrocarbon sources was 8.16 UE·g-1 for 112 h. When diesel oil was used the predicted maximum emulsification activity was 8.10 UE·g-1 for 108 h.
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spelling Castiglioni, Gabriel LuisStanescu, GeorgeRocha, Luiz Alberto OliveiraCosta, Jorge Alberto Vieira2014-08-27T21:21:35Z2014-08-27T21:21:35Z2014CASTIGLIONI, Gabriel Luis et al. Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus. Acta Scientiarum. Technology, v. 36, n. 1, p. 61-67, 2014. Disponível em:<http://periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/17818/pdf_1>. Acesso em: 21 jun. 2014.1806-2563http://repositorio.furg.br/handle/1/453910.4025/actascitechnol.v36i1.17818This is an experimental, analytical and numerical study to optimize the biosurfactants production in solid-state fermentation of a medium containing rice straw and minced rice bran inoculated with Aspergillus fumigatus. The goal of this work was to analytically model the biosurfactants production in solid-state fermentation into a column fixed bed bioreactor. The Least-Squares Method was used to adjust the emulsification activity experimental values to a quadratic function semi-empirical model. Control variables were nutritional conditions, the fermentation time and the aeration. The mathematical model is validated against experimental results and then used to predict the maximum emulsification activity for different nutritional conditions and aerations. Based on the semi-empirical model the maximum emulsification activity with no additional hydrocarbon sources was 8.16 UE·g-1 for 112 h. When diesel oil was used the predicted maximum emulsification activity was 8.10 UE·g-1 for 108 h.Este trabalho trata de um estudo experimental, analítico e numérico para otimizar a produção biossurfactante por fermentação em estado sólido, utilizando Aspergillus fumigatus em substrato contendo casca e farelo de arroz. O objetivo do trabalho foi modelar analiticamente a produção biossurfactantes em biorreator de coluna com leito fixo. O Método dos Mínimos Quadrados foi utilizado para ajustar os valores experimentais de atividade de emulsificação no modelo semiempírico. As variáveis de controle foram as condições nutricionais, tempo de fermentação e aeração. O modelo matemático foi validado experimentalmente e usado para prever a atividade emulsificante nas diferentes condições nutricionais e de aeração. Com base no modelo semiempírico a atividade emulsificante máxima encontrada para os experimentos sem fonte adicional de carbono foi de 8,16 EU g-1 em 112h. Quando o óleo diesel foi utilizado, a atividade emulsificante máxima foi de 8,10 EU g-1 em 108h.engAspergillus fumigatusAspergillus fumigatusBiossurfactanteFermentação em estado sólidoBiosurfactantSolid-state fermentationAnalytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatusModelagem analítica e otimização numérica da produção de biossurfactantes porinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGORIGINALAnalytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus.pdfAnalytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus.pdfapplication/pdf169447https://repositorio.furg.br/bitstream/1/4539/1/Analytical%20modeling%20and%20numerical%20optimization%20of%20the%20biosurfactants%20production%20in%20solid-state%20fermentation%20by%20Aspergillus%20fumigatus.pdfe98abc828e0623fd342ace1bfae18e6aMD51open accessLICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://repositorio.furg.br/bitstream/1/4539/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52open access1/45392014-08-27 18:21:35.134open accessoai:repositorio.furg.br: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Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2014-08-27T21:21:35Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false
dc.title.pt_BR.fl_str_mv Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus
dc.title.alternative.pt_BR.fl_str_mv Modelagem analítica e otimização numérica da produção de biossurfactantes por
title Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus
spellingShingle Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus
Castiglioni, Gabriel Luis
Aspergillus fumigatus
Aspergillus fumigatus
Biossurfactante
Fermentação em estado sólido
Biosurfactant
Solid-state fermentation
title_short Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus
title_full Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus
title_fullStr Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus
title_full_unstemmed Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus
title_sort Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus
author Castiglioni, Gabriel Luis
author_facet Castiglioni, Gabriel Luis
Stanescu, George
Rocha, Luiz Alberto Oliveira
Costa, Jorge Alberto Vieira
author_role author
author2 Stanescu, George
Rocha, Luiz Alberto Oliveira
Costa, Jorge Alberto Vieira
author2_role author
author
author
dc.contributor.author.fl_str_mv Castiglioni, Gabriel Luis
Stanescu, George
Rocha, Luiz Alberto Oliveira
Costa, Jorge Alberto Vieira
dc.subject.por.fl_str_mv Aspergillus fumigatus
Aspergillus fumigatus
Biossurfactante
Fermentação em estado sólido
Biosurfactant
Solid-state fermentation
topic Aspergillus fumigatus
Aspergillus fumigatus
Biossurfactante
Fermentação em estado sólido
Biosurfactant
Solid-state fermentation
description This is an experimental, analytical and numerical study to optimize the biosurfactants production in solid-state fermentation of a medium containing rice straw and minced rice bran inoculated with Aspergillus fumigatus. The goal of this work was to analytically model the biosurfactants production in solid-state fermentation into a column fixed bed bioreactor. The Least-Squares Method was used to adjust the emulsification activity experimental values to a quadratic function semi-empirical model. Control variables were nutritional conditions, the fermentation time and the aeration. The mathematical model is validated against experimental results and then used to predict the maximum emulsification activity for different nutritional conditions and aerations. Based on the semi-empirical model the maximum emulsification activity with no additional hydrocarbon sources was 8.16 UE·g-1 for 112 h. When diesel oil was used the predicted maximum emulsification activity was 8.10 UE·g-1 for 108 h.
publishDate 2014
dc.date.accessioned.fl_str_mv 2014-08-27T21:21:35Z
dc.date.available.fl_str_mv 2014-08-27T21:21:35Z
dc.date.issued.fl_str_mv 2014
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.citation.fl_str_mv CASTIGLIONI, Gabriel Luis et al. Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus. Acta Scientiarum. Technology, v. 36, n. 1, p. 61-67, 2014. Disponível em:<http://periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/17818/pdf_1>. Acesso em: 21 jun. 2014.
dc.identifier.uri.fl_str_mv http://repositorio.furg.br/handle/1/4539
dc.identifier.issn.none.fl_str_mv 1806-2563
dc.identifier.doi.pt_BR.fl_str_mv 10.4025/actascitechnol.v36i1.17818
identifier_str_mv CASTIGLIONI, Gabriel Luis et al. Analytical modeling and numerical optimization of the biosurfactants production in solid-state fermentation by Aspergillus fumigatus. Acta Scientiarum. Technology, v. 36, n. 1, p. 61-67, 2014. Disponível em:<http://periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/17818/pdf_1>. Acesso em: 21 jun. 2014.
1806-2563
10.4025/actascitechnol.v36i1.17818
url http://repositorio.furg.br/handle/1/4539
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