Mechanical and water vapor permeability properties of biodegradables films based on methylcellulose, glucomannan, pectin and gelatin

dc.creatorChambi, HNM
dc.creatorGrosso, CRF
dc.date2011
dc.dateJUL-SEP
dc.date2014-07-30T13:40:49Z
dc.date2015-11-26T16:41:04Z
dc.date2014-07-30T13:40:49Z
dc.date2015-11-26T16:41:04Z
dc.date.accessioned2018-03-28T23:25:09Z
dc.date.available2018-03-28T23:25:09Z
dc.identifierCiencia E Tecnologia De Alimentos. Soc Brasileira Ciencia Tecnologia Alimentos, v. 31, n. 3, n. 739, n. 746, 2011.
dc.identifier0101-2061
dc.identifier1678-457X
dc.identifierWOS:000297040700029
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/53477
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/53477
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1272804
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionMimic biological structures such as the cell wall of plant tissues may be an alternative to obtain biodegradable films with improved mechanical and water vapor barrier properties. This study aims to evaluate the mechanical properties and water vapor permeability (WVP) of films produced by using the solvent-casting technique from blended methylcellulose, glucomannan, pectin and gelatin. First, films from polysaccharides at pH 4 were produced. The film with the best mechanical performance (tensile strength = 72.63 MPa; elongation = 9.85%) was obtained from methylcellulose-glucomannan-pectin at ratio 1:4:1, respectively. Then, gelatin was added to this polysaccharide blend and the pH was adjusted to 4, 5 and 6. Results showed significant improvement in WVP when films were made at pH 5 and at polysaccharides/gelatin ratio of 90/10 and 10/90, reaching 0.094 and 0.118 g.mm/h.m(2).kPa as values, respectively. Films with the best mechanical properties were obtained from the blend of polysaccharides, whereas WVP was improved from the blend of polysaccharides and gelatin at pH 5.
dc.description31
dc.description3
dc.description739
dc.description746
dc.descriptionPEC-PG
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherSoc Brasileira Ciencia Tecnologia Alimentos
dc.publisherCampinas
dc.publisherBrasil
dc.relationCiencia E Tecnologia De Alimentos
dc.relationCiencia Tecnol. Aliment.
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectpolysaccharides
dc.subjectproteins
dc.subjectfilms
dc.subjectbiodegradable materials
dc.subjectCarboxymethylcellulose Blend Films
dc.subjectEdible Films
dc.subjectKonjac Glucomannan
dc.subjectFunctional-properties
dc.subjectSodium Carboxymethylcellulose
dc.subjectTensile Properties
dc.subjectComposite Films
dc.subjectProtein
dc.subjectBarrier
dc.subjectCoatings
dc.titleMechanical and water vapor permeability properties of biodegradables films based on methylcellulose, glucomannan, pectin and gelatin
dc.typeArtículos de revistas


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