Data/hora: 07/06/2024 08:44:01

Provedor de dados: | 52
País: | Brazil
Título: | Influence of thickness on properties of plasticized oat starch films
Autores: | Galdeano,Melicia Cintia; Wilhelm,Allan Eduardo; Mali,Suzana; Grossmann,Maria Victória Eiras.
Data: | 2013-08-01
Ano: | 2013
Palavras-chave: | Plasticizers; Tensile; Puncture; Permeability; Opacity; Glycerol.
Resumo: | The aim of this study was to investigate the effect of thickness (between 80 and 120 µm) on apparent opacity, water vapor permeability and mechanical properties (tensile and puncture) of oat starch films plasticized with glycerol, sorbitol, glycerol:sorbitol mixture, urea and sucrose. Films were stored under 11, 57, 76 and 90% relative humidity (RH) to study the mechanical properties. It was observed that the higher the thickness, the higher was the opacity values. Films without the plasticizer were more opaque in comparison with the plasticized ones. Glycerol:sorbitol films presented increased elongation with increasing thickness at all RH. Puncture force showed a strong dependence on the film thickness, except for the films plasticized with sucrose. In general, thickness did not affect the water permeability.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000400014
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132013000400014
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.56 n.4 2013
Fonte: | info:eu-repo/semantics/openAccess