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dc.contributor.authorYoshida, Cristiana M. P. [UNIFESP]
dc.contributor.authorBastos, Carlos Eduardo N.
dc.contributor.authorFranco, Telma T.
dc.identifier.citationLwt-food Science and Technology. Amsterdam: Elsevier B.V., v. 43, n. 4, p. 584-589, 2010.
dc.description.abstractThe mechanism of potassium sorbate (K-sorbate) release from chitosan films was studied as a function of immersion time in aqueous solution. Fick's law was applied to calculate the diffusion coefficient and the power law defining the type of diffusion mechanism. the novelty in this study is the compound diffusion mechanisms comparison through chitosan film (CF) and chitosan emulsion film Initially, the lipid was selected to obtain the emulsion films the evaluation was based oil the water vapor permeability (WVP) the lower WVP (32.45% less than chitosan film) Was found using 0 5 g/100 g of palmitic acid for 2.0 g/100 g of chitosan Then, active chitosan films (ACF) were obtained incorporating K-sorbate on CF at 0 1 and 0 5 g/100 g of K-sorbate Also, active palmitic acid-chitosan films (APEF) were obtained, incorporating 0 1 g/100 g of K-sorbate the mechanisms of K-sorbate diffusion through ACF and APEF were mainly non-Fickian. However, the K-sorbate diffusion coefficient did not reduced in lipid presence (C) 2009 Elsevier Ltd All rights reserved.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.publisherElsevier B.V.
dc.relation.ispartofLwt-food Science and Technology
dc.rightsAcesso restrito
dc.subjectPotassium sorbateen
dc.subjectActive packagingen
dc.titleModeling of potassium sorbate diffusion through chitosan filmsen
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.description.affiliationUniv Estadual Campinas, Fac Chem Engn, Biochem Engn Lab, UNICAMP, BR-13081970 Campinas, SP, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Dept Exact & Earth Sci, UNIFESP, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Exact & Earth Sci, UNIFESP, BR-09972270 Diadema, SP, Brazil
dc.description.sponsorshipIDALFA: II-0259-FA-FDC
dc.description.sourceWeb of Science

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