Evaluation of Antimicrobial Activity of Silver Nanoparticles for Carboxymethylcellulose Film Applications in Food Packaging

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dc.contributor.authorSiqueira, Maria C.
dc.contributor.authorCoelho, Gustavo F.
dc.contributor.authorMoura, Marcia R. de [UNESP]
dc.contributor.authorBresolin, Joana D.
dc.contributor.authorHubinger, Silviane Z.
dc.contributor.authorMarconcini, Jose M.
dc.contributor.authorMattoso, Luiz H. C.
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-12-03T13:11:51Z
dc.date.available2014-12-03T13:11:51Z
dc.date.issued2014-07-01
dc.description.abstractIn this study, silver nanoparticles were prepared and incorporated into carboxymethylcellulose films to evaluate the antimicrobial activity for food packaging applications. The techniques carried out for material characterization were: infrared spectroscopy and thermal analysis for the silver nanoparticles and films, as well as particle size distribution for the nanoparticles and water vapor permeability for the films. The antimicrobial activity of silver nanoparticles prepared by casting method was investigated. The minimum inhibitory concentration (MIC) value of the silver nanoparticles to test Gram-positive (Enterococcus faecalis) and Gram-negative (Escherichia coli) microorganisms was carried out by the serial dilution technique, tested in triplicate to confirm the concentration used. The results were developed using the Mcfarland scale which indicates that the presence or absence of turbidity tube demonstrates the inhibition of bacteria in relation to the substance inoculated. It was found that the silver nanoparticles inhibited the growth of the tested microorganisms. The carboxymethylcellulose film embedded with silver nanoparticles showed the best antimicrobial effect against Gram-positive (E. faecalis) and Gram-negative (E. coli) bacteria (0.1 mu g cm(-3)).en
dc.description.affiliationBrazilian Agr Res Corp EMBRAPA, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Fed Sao Carlos, Dept Chem, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationSao Paulo State Univ, Dept Phys & Chem, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Dept Phys & Chem, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipEmbrapa-Brazil
dc.description.sponsorshipChemistry Department (UFSCar)
dc.description.sponsorshipIdCAPES: 04/CII-2008-Nanobiotec Brasil
dc.format.extent5512-5517
dc.identifierhttp://dx.doi.org/10.1166/jnn.2014.8991
dc.identifier.citationJournal Of Nanoscience And Nanotechnology. Valencia: Amer Scientific Publishers, v. 14, n. 7, p. 5512-5517, 2014.
dc.identifier.doi10.1166/jnn.2014.8991
dc.identifier.issn1533-4880
dc.identifier.urihttp://hdl.handle.net/11449/113648
dc.identifier.wosWOS:000332926400118
dc.language.isoeng
dc.publisherAmer Scientific Publishers
dc.relation.ispartofJournal of Nanoscience and Nanotechnology
dc.relation.ispartofjcr1.354
dc.relation.ispartofsjr0,326
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectActive Packagingen
dc.subjectAntimicrobial Activityen
dc.subjectEdible Filmen
dc.subjectFood Packagingen
dc.subjectNanoparticlesen
dc.titleEvaluation of Antimicrobial Activity of Silver Nanoparticles for Carboxymethylcellulose Film Applications in Food Packagingen
dc.typeArtigo
dcterms.rightsHolderAmer Scientific Publishers
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt
unesp.departmentFísica e Química - FEISpt

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Ilha Solteira - FEIS - Faculdade de Engenharia