Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/1841 |
Resumo: | The work herewith investigated the effect of the culture medium composition on rhamnolipid production by Pseudomonas aeruginosa LBM10, previously isolated from an estuarine environment in Southern Brazil. Experimental design and surface response methodology were used in order to improve biosurfactant production using glycerol, a renewable carbon source. The assays were carried out in a rotary shaker at 30°C and 180 rpm for 120 h and the parameters studied were glycerol concentration, C/N (carbon/nitrogen) and C/P (carbon/phosphorus) ratios. Low glycerol concentration and a phosphorus-limiting condition were favorable for rhamnolipid production. Contour plots constructed by predictive polynomial equations led to a glycerol concentration of 13.2 g/l, a C/N ratio of 12.8 and a C/P ratio of 40 in order to maximize rhamnolipid concentration (4.15 g/l) associated with a high emulsification index (61%). |
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Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerolBiosurfactantSurface-active compoundsExperimental designPhosphorus limitationThe work herewith investigated the effect of the culture medium composition on rhamnolipid production by Pseudomonas aeruginosa LBM10, previously isolated from an estuarine environment in Southern Brazil. Experimental design and surface response methodology were used in order to improve biosurfactant production using glycerol, a renewable carbon source. The assays were carried out in a rotary shaker at 30°C and 180 rpm for 120 h and the parameters studied were glycerol concentration, C/N (carbon/nitrogen) and C/P (carbon/phosphorus) ratios. Low glycerol concentration and a phosphorus-limiting condition were favorable for rhamnolipid production. Contour plots constructed by predictive polynomial equations led to a glycerol concentration of 13.2 g/l, a C/N ratio of 12.8 and a C/P ratio of 40 in order to maximize rhamnolipid concentration (4.15 g/l) associated with a high emulsification index (61%).2012-03-06T03:52:58Z2012-03-06T03:52:58Z2010info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfROSA, Célia Francisca Centeno da et al. Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol. African Journal of Biotechnology, v. 9, n. 40, p. 9012-9017, 2010. Disponível em: <http://www.academicjournals.org/AJB/PDF/pdf2010/27Dec/da%20Rosa%20et%20al.pdf>. Acesso em: 20 dez. de 2011.1684–5315http://repositorio.furg.br/handle/1/1841porRosa, Célia Francisca Centeno daMichelon, MarianoBurkert, Janaina Fernandes de MedeirosKalil, Susana JulianoBurkert, Carlos André Veigainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2014-08-29T17:58:17Zoai:repositorio.furg.br:1/1841Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2014-08-29T17:58:17Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol |
title |
Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol |
spellingShingle |
Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol Rosa, Célia Francisca Centeno da Biosurfactant Surface-active compounds Experimental design Phosphorus limitation |
title_short |
Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol |
title_full |
Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol |
title_fullStr |
Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol |
title_full_unstemmed |
Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol |
title_sort |
Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol |
author |
Rosa, Célia Francisca Centeno da |
author_facet |
Rosa, Célia Francisca Centeno da Michelon, Mariano Burkert, Janaina Fernandes de Medeiros Kalil, Susana Juliano Burkert, Carlos André Veiga |
author_role |
author |
author2 |
Michelon, Mariano Burkert, Janaina Fernandes de Medeiros Kalil, Susana Juliano Burkert, Carlos André Veiga |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Rosa, Célia Francisca Centeno da Michelon, Mariano Burkert, Janaina Fernandes de Medeiros Kalil, Susana Juliano Burkert, Carlos André Veiga |
dc.subject.por.fl_str_mv |
Biosurfactant Surface-active compounds Experimental design Phosphorus limitation |
topic |
Biosurfactant Surface-active compounds Experimental design Phosphorus limitation |
description |
The work herewith investigated the effect of the culture medium composition on rhamnolipid production by Pseudomonas aeruginosa LBM10, previously isolated from an estuarine environment in Southern Brazil. Experimental design and surface response methodology were used in order to improve biosurfactant production using glycerol, a renewable carbon source. The assays were carried out in a rotary shaker at 30°C and 180 rpm for 120 h and the parameters studied were glycerol concentration, C/N (carbon/nitrogen) and C/P (carbon/phosphorus) ratios. Low glycerol concentration and a phosphorus-limiting condition were favorable for rhamnolipid production. Contour plots constructed by predictive polynomial equations led to a glycerol concentration of 13.2 g/l, a C/N ratio of 12.8 and a C/P ratio of 40 in order to maximize rhamnolipid concentration (4.15 g/l) associated with a high emulsification index (61%). |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010 2012-03-06T03:52:58Z 2012-03-06T03:52:58Z |
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.uri.fl_str_mv |
ROSA, Célia Francisca Centeno da et al. Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol. African Journal of Biotechnology, v. 9, n. 40, p. 9012-9017, 2010. Disponível em: <http://www.academicjournals.org/AJB/PDF/pdf2010/27Dec/da%20Rosa%20et%20al.pdf>. Acesso em: 20 dez. de 2011. 1684–5315 http://repositorio.furg.br/handle/1/1841 |
identifier_str_mv |
ROSA, Célia Francisca Centeno da et al. Production of a rhamnolipid-type biosurfactant by Pseudomonas aeruginosa LBM10 grown on glycerol. African Journal of Biotechnology, v. 9, n. 40, p. 9012-9017, 2010. Disponível em: <http://www.academicjournals.org/AJB/PDF/pdf2010/27Dec/da%20Rosa%20et%20al.pdf>. Acesso em: 20 dez. de 2011. 1684–5315 |
url |
http://repositorio.furg.br/handle/1/1841 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
|
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1813187230128144384 |