Structure and Applications of a Rhamnolipid Surfactant Produced in Soybean Oil Waste

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dc.contributor.authorNitschke, Marcia
dc.contributor.authorCosta, Siddhartha G. V. A. O. [UNESP]
dc.contributor.authorContiero, Jonas [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:47:27Z
dc.date.accessioned2014-05-20T13:56:24Z
dc.date.available2013-09-30T18:47:27Z
dc.date.available2014-05-20T13:56:24Z
dc.date.issued2010-04-01
dc.description.abstractSoybean oil soapstock was utilized as an alternative carbon source for the production of rhamnolipids by Pseudomonas aeruginosa LBI strain. The chemical composition and properties of the rhamnolipid mixture obtained were determined to define its potential applications. The chemical characterization of the rhamnolipid has revealed the presence of ten different homologues. The monorhamnolipid RhaC(10)C(10) and the dirhamnolipid Rha(2)C(10)C(10) were the main components of the mixture that showed predominance of 44% and 29%, respectively, after 144-h of cultivation. The biosurfactant was able to form stable emulsions with several hydrocarbons and showed excellent emulsification for soybean oil and chicken fat (100%). The rhamnolipid removed 67% of crude oil present in sand samples and presented antimicrobial activity against Bacillus cereus and Mucor miehei at 64 mu g/mL and inhibition of Neurospora crassa, Staphylococcus aureus, and Micrococcus luteus at 256 mu g/mL. The results demonstrated that the rhamnolipid produced in soybean oil soapstock can be useful in environmental and food industry applications.en
dc.description.affiliationUniv São Paulo, Inst Chem, Dept Phys Chem, BR-13560970 São Carlos, SP, Brazil
dc.description.affiliationSão Paulo State Univ UNESP Rio Claro, Inst Biol Sci, Dept Biochem & Microbiol, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ UNESP Rio Claro, Inst Biol Sci, Dept Biochem & Microbiol, BR-13506900 Rio Claro, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent2066-2074
dc.identifierhttp://dx.doi.org/10.1007/s12010-009-8707-8
dc.identifier.citationApplied Biochemistry and Biotechnology. Totowa: Humana Press Inc, v. 160, n. 7, p. 2066-2074, 2010.
dc.identifier.doi10.1007/s12010-009-8707-8
dc.identifier.issn0273-2289
dc.identifier.lattes9859154979447005
dc.identifier.urihttp://hdl.handle.net/11449/20160
dc.identifier.wosWOS:000275455100020
dc.language.isoeng
dc.publisherHumana Press Inc
dc.relation.ispartofApplied Biochemistry and Biotechnology
dc.relation.ispartofjcr1.797
dc.relation.ispartofsjr0,571
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectBiosurfactantsen
dc.subjectRhamnolipidsen
dc.subjectSoybean oil wasteen
dc.subjectSoapstocken
dc.subjectPseudomonas aeruginosaen
dc.titleStructure and Applications of a Rhamnolipid Surfactant Produced in Soybean Oil Wasteen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderHumana Press Inc
unesp.author.lattes9859154979447005
unesp.author.orcid0000-0003-1215-6400[3]
unesp.author.orcid0000-0001-6107-4183[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Bioquímica e Microbiologia - IBRC