Factors affecting rhamnolipids production by Pseudomonas Aeruginosa LBI
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/231849 |
Resumo: | This paper presents the results from study investigating the capacity of Pseudomonas aeruginosa LBI growing on several carbon (Hydrophilic substrate) and nitrogen sources. The carbon source (2%) studied were: glycerol, manitol, fructose, glucose, lactose and the nitrogen sources (2; 3; 4 and 5%) were: NaNO3, NH4NO3, (NH4)2SO4 and (NH2)2CO. At the 96 h of fermentation, the medium with glycerol as a carbon source reached 7.9 g/L of rhamnolipids and 1.2 g/L cellular protein. The surface tension reduction was 38.46 % for glycerol as a carbon source. The NaNO3 at 3% was the best concentration for rhamnolipids production (7.35 g/L) and cellular protein (1.12 g.L). The influences of metal ions [FeSO4.7H2O (0.001 g/L, 0.005 g/L and 0.1 g/L)] and MgSO4.7H2O (0.001 g/L, 0.005 g/L and 0.1 g/L)] on ramnolipids production were studied. Fe2+ had a negative influence on the studied concentrations while Mg2+ had a positive influence when its concentration was increased. |
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Repositório Institucional da UNESP |
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Factors affecting rhamnolipids production by Pseudomonas Aeruginosa LBICarbon sourceMetal ionsNitrogen sourcePseudomonas aeruginosaRhamnolipidThis paper presents the results from study investigating the capacity of Pseudomonas aeruginosa LBI growing on several carbon (Hydrophilic substrate) and nitrogen sources. The carbon source (2%) studied were: glycerol, manitol, fructose, glucose, lactose and the nitrogen sources (2; 3; 4 and 5%) were: NaNO3, NH4NO3, (NH4)2SO4 and (NH2)2CO. At the 96 h of fermentation, the medium with glycerol as a carbon source reached 7.9 g/L of rhamnolipids and 1.2 g/L cellular protein. The surface tension reduction was 38.46 % for glycerol as a carbon source. The NaNO3 at 3% was the best concentration for rhamnolipids production (7.35 g/L) and cellular protein (1.12 g.L). The influences of metal ions [FeSO4.7H2O (0.001 g/L, 0.005 g/L and 0.1 g/L)] and MgSO4.7H2O (0.001 g/L, 0.005 g/L and 0.1 g/L)] on ramnolipids production were studied. Fe2+ had a negative influence on the studied concentrations while Mg2+ had a positive influence when its concentration was increased.Biological Sciences Institute São Paulo State University -UNESP, São PauloFaculty of Pharmaceutical Sciences São Paulo State University-UNESP, São PauloBiological Sciences Institute São Paulo State University -UNESP, São PauloFaculty of Pharmaceutical Sciences São Paulo State University-UNESP, São PauloUniversidade Estadual Paulista (UNESP)Silva, Barbara HenningPirôllo, Maria Paula SantosLovaglio, RobertaCosta Siddhartha, G. V.A.O.Contiero, Jonas [UNESP]Loschchagin, Pizzolitto Elisabeth [UNESP]2022-04-29T08:47:48Z2022-04-29T08:47:48Z2008-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article45-49Research Journal of Biotechnology, v. 3, n. 1, p. 45-49, 2008.2278-45350973-6263http://hdl.handle.net/11449/2318492-s2.0-53449096940Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengResearch Journal of Biotechnologyinfo:eu-repo/semantics/openAccess2022-04-29T08:47:48Zoai:repositorio.unesp.br:11449/231849Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:45:20.681197Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Factors affecting rhamnolipids production by Pseudomonas Aeruginosa LBI |
title |
Factors affecting rhamnolipids production by Pseudomonas Aeruginosa LBI |
spellingShingle |
Factors affecting rhamnolipids production by Pseudomonas Aeruginosa LBI Silva, Barbara Henning Carbon source Metal ions Nitrogen source Pseudomonas aeruginosa Rhamnolipid |
title_short |
Factors affecting rhamnolipids production by Pseudomonas Aeruginosa LBI |
title_full |
Factors affecting rhamnolipids production by Pseudomonas Aeruginosa LBI |
title_fullStr |
Factors affecting rhamnolipids production by Pseudomonas Aeruginosa LBI |
title_full_unstemmed |
Factors affecting rhamnolipids production by Pseudomonas Aeruginosa LBI |
title_sort |
Factors affecting rhamnolipids production by Pseudomonas Aeruginosa LBI |
author |
Silva, Barbara Henning |
author_facet |
Silva, Barbara Henning Pirôllo, Maria Paula Santos Lovaglio, Roberta Costa Siddhartha, G. V.A.O. Contiero, Jonas [UNESP] Loschchagin, Pizzolitto Elisabeth [UNESP] |
author_role |
author |
author2 |
Pirôllo, Maria Paula Santos Lovaglio, Roberta Costa Siddhartha, G. V.A.O. Contiero, Jonas [UNESP] Loschchagin, Pizzolitto Elisabeth [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Silva, Barbara Henning Pirôllo, Maria Paula Santos Lovaglio, Roberta Costa Siddhartha, G. V.A.O. Contiero, Jonas [UNESP] Loschchagin, Pizzolitto Elisabeth [UNESP] |
dc.subject.por.fl_str_mv |
Carbon source Metal ions Nitrogen source Pseudomonas aeruginosa Rhamnolipid |
topic |
Carbon source Metal ions Nitrogen source Pseudomonas aeruginosa Rhamnolipid |
description |
This paper presents the results from study investigating the capacity of Pseudomonas aeruginosa LBI growing on several carbon (Hydrophilic substrate) and nitrogen sources. The carbon source (2%) studied were: glycerol, manitol, fructose, glucose, lactose and the nitrogen sources (2; 3; 4 and 5%) were: NaNO3, NH4NO3, (NH4)2SO4 and (NH2)2CO. At the 96 h of fermentation, the medium with glycerol as a carbon source reached 7.9 g/L of rhamnolipids and 1.2 g/L cellular protein. The surface tension reduction was 38.46 % for glycerol as a carbon source. The NaNO3 at 3% was the best concentration for rhamnolipids production (7.35 g/L) and cellular protein (1.12 g.L). The influences of metal ions [FeSO4.7H2O (0.001 g/L, 0.005 g/L and 0.1 g/L)] and MgSO4.7H2O (0.001 g/L, 0.005 g/L and 0.1 g/L)] on ramnolipids production were studied. Fe2+ had a negative influence on the studied concentrations while Mg2+ had a positive influence when its concentration was increased. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01-01 2022-04-29T08:47:48Z 2022-04-29T08:47:48Z |
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 |
Research Journal of Biotechnology, v. 3, n. 1, p. 45-49, 2008. 2278-4535 0973-6263 http://hdl.handle.net/11449/231849 2-s2.0-53449096940 |
identifier_str_mv |
Research Journal of Biotechnology, v. 3, n. 1, p. 45-49, 2008. 2278-4535 0973-6263 2-s2.0-53449096940 |
url |
http://hdl.handle.net/11449/231849 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Research Journal of Biotechnology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
45-49 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128853137162240 |