Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/48003
Título: Effect of glutaraldehyde/glycerol ratios on the properties of chitosan films
Palavras-chave: Chitosan films
Glutaraldehyde
Glycerol
Packaging market
Filmes de quitosana
Glutaraldeído
Glicerol
Mercado de embalagens
Data do documento: Jan-2021
Editor: Wiley
Citação: OLIVEIRA, A. C. S. de; UGUCIONI, J. C.; BORGES, S. V. Effect of glutaraldehyde/glycerol ratios on the properties of chitosan films. Journal of Food Processing and Preservation, Westport, v. 45, n. 1, e15060, Jan. 2021. DOI: 10.1111/jfpp.15060.
Resumo: Chitosan is a biodegradable polymer and could be applied as packaging. To make chitosan more competitive, plasticizers and cross-linking agents are added in films. The aim of this paper was to obtain and characterize films of chitosan without or with glutaraldehyde (0; 0.99 mg/150 ml) in different concentrations of glycerol (0, 10, 20, and 30%w/w), for improving the properties like tensile resistance and the water vapor permeability. The films were homogeneous, without phase separation, and with a similar chemical structure. The glutaraldehyde makes the chitosan partly hydrophobic, leading to glycerol saturation in samples with glutaraldehyde and 20 or 30% of glycerol. The Principal Component Analysis for the film with glutaraldehyde and 10% of glycerol presented 3.60 g.mm/kPa.day.m2 of water vapor permeability and 36.96 MPa of tensile resistance. The use of plasticizer and cross-linking in combination is promising to make chitosan film more competitive on the market of packaging.
URI: https://doi.org/10.1111/jfpp.15060
http://repositorio.ufla.br/jspui/handle/1/48003
Aparece nas coleções:DCA - Artigos publicados em periódicos
DFI - Artigos publicados em periódicos

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