Influence of medium composition in the production of ethanol by Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454

Detalhes bibliográficos
Autor(a) principal: Ernandes, Fernanda Maria Pagane Guereschi
Data de Publicação: 2009
Outros Autores: Boscolo, Maurício, Cruz, Crispin Humberto Garcia
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta scientiarum. Technology (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/7454
Resumo: The production of ethanol using Zymomonas mobilis had been reported to be three to four times larger than with Saccharomyces cereviseae. The influence of pH, temperature and composition of the means of fermentation are parameters that can direct the metabolism for the production of ethanol. The objective of this study was to evaluate the production of ethanol by Zymomonas mobilis CCT 4494, by variations of the initial pH, temperature and concentrations KCl, K2SO4, MgSO4, CaCl2 and sucrose, by a factorial experimental design of type 27-2, according to the model proposed by Box et al. (1978). For this, the broth of sugar cane was used as sole carbon source, because it is cheap and easily accessible in the region of São José do Rio Preto, São Paulo State. According to the experimental design, the bacteria Zymomonas mobilis CCT 4494 has adapted in the fermentation mean containing high concentrations of sucrose, and supported the change of pH and temperature of fermentation. The highest amount of ethanol produced was 8.89 mg mL-1. This is not similar to the levels of secondary metabolites produced by Zymomonas mobilis CCT 4494.
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spelling Influence of medium composition in the production of ethanol by Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454Influência da composição do meio para a produção de etanol, por Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454Zymomonas mobilisethanolethanol fermentationfactorial designZymomonas mobilisetanolfermentação alcoólicaplanejamento fatorialThe production of ethanol using Zymomonas mobilis had been reported to be three to four times larger than with Saccharomyces cereviseae. The influence of pH, temperature and composition of the means of fermentation are parameters that can direct the metabolism for the production of ethanol. The objective of this study was to evaluate the production of ethanol by Zymomonas mobilis CCT 4494, by variations of the initial pH, temperature and concentrations KCl, K2SO4, MgSO4, CaCl2 and sucrose, by a factorial experimental design of type 27-2, according to the model proposed by Box et al. (1978). For this, the broth of sugar cane was used as sole carbon source, because it is cheap and easily accessible in the region of São José do Rio Preto, São Paulo State. According to the experimental design, the bacteria Zymomonas mobilis CCT 4494 has adapted in the fermentation mean containing high concentrations of sucrose, and supported the change of pH and temperature of fermentation. The highest amount of ethanol produced was 8.89 mg mL-1. This is not similar to the levels of secondary metabolites produced by Zymomonas mobilis CCT 4494.A bactéria Zymomonas mobilis tem despertado interesse pelo seu potencial na produção de etanol, produzindo cerca de 1,9 mol de etanol por mol de glicose, com velocidade três a quatro vezes maior que Saccharomyces cereviseae. A influência do pH, da temperatura, assim como a composição do meio de fermentação, são parâmetros que podem direcionar o metabolismo para a produção de etanol. O trabalho teve, como objetivo, avaliar a produção de etanol pela bactéria Zymomonas mobilis CCT 4494, por meio da variação do pH, da temperatura e das concentrações de KCl, K2SO4, MgSO4, CaCl2 e sacarose, seguindo planejamento fatorial do tipo 27-2, de acordo com o modelo proposto por Box et al. (1978). Foi utilizado, como única fonte de carbono, o caldo de cana-de-açúcar, por ser barato e de fácil acesso na região de São José do Rio Preto, Estado de São Paulo. De acordo com o planejamento experimental, a bactéria Zymomonas mobilis CCT 4494 se adaptou no meio de fermentação que continha altas concentrações de sacarose, bem como suportou a variação do pH e da temperatura de fermentação. A maior produção de etanol foi de 8,89 mg mL-1 e, de todas as variáveis testadas, apenas K2SO4 afetou significativamente (p < 0,05) sua produção.Universidade Estadual De Maringá2009-11-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/745410.4025/actascitechnol.v32i1.7454Acta Scientiarum. Technology; Vol 32 No 1 (2010); 21-26Acta Scientiarum. Technology; v. 32 n. 1 (2010); 21-261806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/7454/7454Ernandes, Fernanda Maria Pagane GuereschiBoscolo, MaurícioCruz, Crispin Humberto Garciainfo:eu-repo/semantics/openAccess2024-05-17T13:03:09Zoai:periodicos.uem.br/ojs:article/7454Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:03:09Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Influence of medium composition in the production of ethanol by Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454
Influência da composição do meio para a produção de etanol, por Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454
title Influence of medium composition in the production of ethanol by Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454
spellingShingle Influence of medium composition in the production of ethanol by Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454
Ernandes, Fernanda Maria Pagane Guereschi
Zymomonas mobilis
ethanol
ethanol fermentation
factorial design
Zymomonas mobilis
etanol
fermentação alcoólica
planejamento fatorial
title_short Influence of medium composition in the production of ethanol by Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454
title_full Influence of medium composition in the production of ethanol by Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454
title_fullStr Influence of medium composition in the production of ethanol by Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454
title_full_unstemmed Influence of medium composition in the production of ethanol by Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454
title_sort Influence of medium composition in the production of ethanol by Zymomonas mobilis - DOI: 10.4025/actascitechnol.v32i1.7454
author Ernandes, Fernanda Maria Pagane Guereschi
author_facet Ernandes, Fernanda Maria Pagane Guereschi
Boscolo, Maurício
Cruz, Crispin Humberto Garcia
author_role author
author2 Boscolo, Maurício
Cruz, Crispin Humberto Garcia
author2_role author
author
dc.contributor.author.fl_str_mv Ernandes, Fernanda Maria Pagane Guereschi
Boscolo, Maurício
Cruz, Crispin Humberto Garcia
dc.subject.por.fl_str_mv Zymomonas mobilis
ethanol
ethanol fermentation
factorial design
Zymomonas mobilis
etanol
fermentação alcoólica
planejamento fatorial
topic Zymomonas mobilis
ethanol
ethanol fermentation
factorial design
Zymomonas mobilis
etanol
fermentação alcoólica
planejamento fatorial
description The production of ethanol using Zymomonas mobilis had been reported to be three to four times larger than with Saccharomyces cereviseae. The influence of pH, temperature and composition of the means of fermentation are parameters that can direct the metabolism for the production of ethanol. The objective of this study was to evaluate the production of ethanol by Zymomonas mobilis CCT 4494, by variations of the initial pH, temperature and concentrations KCl, K2SO4, MgSO4, CaCl2 and sucrose, by a factorial experimental design of type 27-2, according to the model proposed by Box et al. (1978). For this, the broth of sugar cane was used as sole carbon source, because it is cheap and easily accessible in the region of São José do Rio Preto, São Paulo State. According to the experimental design, the bacteria Zymomonas mobilis CCT 4494 has adapted in the fermentation mean containing high concentrations of sucrose, and supported the change of pH and temperature of fermentation. The highest amount of ethanol produced was 8.89 mg mL-1. This is not similar to the levels of secondary metabolites produced by Zymomonas mobilis CCT 4494.
publishDate 2009
dc.date.none.fl_str_mv 2009-11-13
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/7454
10.4025/actascitechnol.v32i1.7454
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/7454
identifier_str_mv 10.4025/actascitechnol.v32i1.7454
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/7454/7454
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Technology; Vol 32 No 1 (2010); 21-26
Acta Scientiarum. Technology; v. 32 n. 1 (2010); 21-26
1806-2563
1807-8664
reponame:Acta scientiarum. Technology (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta scientiarum. Technology (Online)
collection Acta scientiarum. Technology (Online)
repository.name.fl_str_mv Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actatech@uem.br
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