Influence of natamycin loading methods on the physical characteristics of alginate active films

dc.creatorBierhalz, ACK
dc.creatorda Silva, MA
dc.creatorde Sousa, HC
dc.creatorBraga, MEM
dc.creatorKieckbusch, TG
dc.date2013
dc.dateAPR
dc.date2014-08-01T18:31:43Z
dc.date2015-11-26T17:00:35Z
dc.date2014-08-01T18:31:43Z
dc.date2015-11-26T17:00:35Z
dc.date.accessioned2018-03-28T23:48:22Z
dc.date.available2018-03-28T23:48:22Z
dc.identifierJournal Of Supercritical Fluids. Elsevier Science Bv, v. 76, n. 74, n. 82, 2013.
dc.identifier0896-8446
dc.identifierWOS:000317378500011
dc.identifier10.1016/j.supflu.2013.01.014
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/80225
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/80225
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1278511
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionNatamycin, an antimicrobial agent sparingly soluble in water, was incorporated into alginate films in order to produce antimicrobial packaging, using three different approaches: the conventional loading method, when natamycin is added directly to the polymeric aqueous film-forming solution; the immersion procedure, by which a previously prepared films is contacted with natamycin solution, and by the supercritical solvent impregnation (SSI) method, with loading tests performed in CO2 containing natamycin, with and without addition of cosolvent (ethanol, 10% molar). The loading capacities were evaluated, as well as the influence on physical attributes of the films and on the release behavior of natamycin in water. The conventional method led to films heterogeneities with high surface roughness, and the immersion technique evinced several disadvantages like low incorporation yields, and negative influence on water vapor permeability and on the swelling degree of the film. The supercritical method showed that longer contact times and the use of ethanol as a cosolvent increased the natamycin loading yields and led to homogeneous films, where SSI (CO2 + EtOH) process produced visually attractive and tranlucent films. (C) 2013 Elsevier B.V. All rights reserved.
dc.description76
dc.description74
dc.description82
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationJournal Of Supercritical Fluids
dc.relationJ. Supercrit. Fluids
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectActive biofilms
dc.subjectAlginate
dc.subjectNatamycin
dc.subjectSupercritical solvent impregnation
dc.subjectControlled release
dc.subjectSupercritical Solvent Impregnation
dc.subjectFood-packaging Applications
dc.subjectSodium Caseinate Films
dc.subjectPotassium Sorbate
dc.subjectAntimicrobial Activity
dc.subjectRosemary Extract
dc.subjectRelease
dc.subjectPreservation
dc.subjectBiopolymers
dc.subjectCheese
dc.titleInfluence of natamycin loading methods on the physical characteristics of alginate active films
dc.typeArtículos de revistas


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