Evaluation of emulsifier stability of biosurfactant produced by Saccharomyces lipolytica CCT-0913

Detalhes bibliográficos
Autor(a) principal: Lima,Álvaro Silva
Data de Publicação: 2009
Outros Autores: Alegre,Ranulfo Monte
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Archives of Biology and Technology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200004
Resumo: Surface-active compounds of biological origin are widely used for many industries (cosmetic, food, petrochemical). The Saccharomyces lipolytica CCT-0913 was able to grow and produce a biosurfactant on 5% (v/v) diesel-oil at pH 5.0 and 32ºC. The cell-free broth emulsified and stabilized the oil-in-water emulsion through a first order kinetics. The results showed that the initial pH value and temperature influenced the emulsifier stability (ES), which was the time when oil was separated. The biosurfactant presented different stabilization properties for vegetable and mineral oil in water solution, despite the highest values of the ES occurring with vegetable oil. The biosurfactant presented smallest ES when compared to commercial surfactants; however, this biosurfactant was not purified.
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spelling Evaluation of emulsifier stability of biosurfactant produced by Saccharomyces lipolytica CCT-0913Biosurfactantemulsifier stabilityfermentationvegetable oildiesel oilSurface-active compounds of biological origin are widely used for many industries (cosmetic, food, petrochemical). The Saccharomyces lipolytica CCT-0913 was able to grow and produce a biosurfactant on 5% (v/v) diesel-oil at pH 5.0 and 32ºC. The cell-free broth emulsified and stabilized the oil-in-water emulsion through a first order kinetics. The results showed that the initial pH value and temperature influenced the emulsifier stability (ES), which was the time when oil was separated. The biosurfactant presented different stabilization properties for vegetable and mineral oil in water solution, despite the highest values of the ES occurring with vegetable oil. The biosurfactant presented smallest ES when compared to commercial surfactants; however, this biosurfactant was not purified.Instituto de Tecnologia do Paraná - Tecpar2009-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200004Brazilian Archives of Biology and Technology v.52 n.2 2009reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/S1516-89132009000200004info:eu-repo/semantics/openAccessLima,Álvaro SilvaAlegre,Ranulfo Monteeng2009-05-06T00:00:00Zoai:scielo:S1516-89132009000200004Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2009-05-06T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false
dc.title.none.fl_str_mv Evaluation of emulsifier stability of biosurfactant produced by Saccharomyces lipolytica CCT-0913
title Evaluation of emulsifier stability of biosurfactant produced by Saccharomyces lipolytica CCT-0913
spellingShingle Evaluation of emulsifier stability of biosurfactant produced by Saccharomyces lipolytica CCT-0913
Lima,Álvaro Silva
Biosurfactant
emulsifier stability
fermentation
vegetable oil
diesel oil
title_short Evaluation of emulsifier stability of biosurfactant produced by Saccharomyces lipolytica CCT-0913
title_full Evaluation of emulsifier stability of biosurfactant produced by Saccharomyces lipolytica CCT-0913
title_fullStr Evaluation of emulsifier stability of biosurfactant produced by Saccharomyces lipolytica CCT-0913
title_full_unstemmed Evaluation of emulsifier stability of biosurfactant produced by Saccharomyces lipolytica CCT-0913
title_sort Evaluation of emulsifier stability of biosurfactant produced by Saccharomyces lipolytica CCT-0913
author Lima,Álvaro Silva
author_facet Lima,Álvaro Silva
Alegre,Ranulfo Monte
author_role author
author2 Alegre,Ranulfo Monte
author2_role author
dc.contributor.author.fl_str_mv Lima,Álvaro Silva
Alegre,Ranulfo Monte
dc.subject.por.fl_str_mv Biosurfactant
emulsifier stability
fermentation
vegetable oil
diesel oil
topic Biosurfactant
emulsifier stability
fermentation
vegetable oil
diesel oil
description Surface-active compounds of biological origin are widely used for many industries (cosmetic, food, petrochemical). The Saccharomyces lipolytica CCT-0913 was able to grow and produce a biosurfactant on 5% (v/v) diesel-oil at pH 5.0 and 32ºC. The cell-free broth emulsified and stabilized the oil-in-water emulsion through a first order kinetics. The results showed that the initial pH value and temperature influenced the emulsifier stability (ES), which was the time when oil was separated. The biosurfactant presented different stabilization properties for vegetable and mineral oil in water solution, despite the highest values of the ES occurring with vegetable oil. The biosurfactant presented smallest ES when compared to commercial surfactants; however, this biosurfactant was not purified.
publishDate 2009
dc.date.none.fl_str_mv 2009-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-89132009000200004
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
dc.source.none.fl_str_mv Brazilian Archives of Biology and Technology v.52 n.2 2009
reponame:Brazilian Archives of Biology and Technology
instname:Instituto de Tecnologia do Paraná (Tecpar)
instacron:TECPAR
instname_str Instituto de Tecnologia do Paraná (Tecpar)
instacron_str TECPAR
institution TECPAR
reponame_str Brazilian Archives of Biology and Technology
collection Brazilian Archives of Biology and Technology
repository.name.fl_str_mv Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)
repository.mail.fl_str_mv babt@tecpar.br||babt@tecpar.br
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