| Journal: | Brazilian archives of biology and technology |
| Database: | PERIÓDICA |
| System number: | 000365607 |
| ISSN: | 1516-8913 |
| Authors: | Galdeano, Melicia Cintia1 Wilhelm, Allan Eduardo1 Mali, Suzana2 Grossmann, Maria Victoria Eiras3 |
| Institutions: | 1Empresa Brasileira de Pesquisa Agropecuaria, Agroindustria de Alimentos, Rio de Janeiro. Brasil 2Universidade Estadual de Londrina, Centro de Ciencias Exatas, Londrina, Parana. Brasil 3Universidade Estadual de Londrina, Centro de Ciencias Agrarias, Londrina, Parana. Brasil |
| Year: | 2013 |
| Season: | Jul-Ago |
| Volumen: | 56 |
| Number: | 4 |
| Pages: | 637-644 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | 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 |
| Disciplines: | Ingeniería, Química |
| Keyword: | Ingeniería de materiales, Biotecnología, Empaques biodegradables, Película de almidón, Plastificantes, Opacidad, Permeabilidad |
| Keyword: | Engineering, Chemistry, Materials engineering, Biotechnology, Biodegradable packages, Starch film, Plastifiers, Opacity, Permeability |
| Full text: | Texto completo (Ver HTML) |
