Effect of modified clays on the structure and functional properties of biofilms produced with zein
The purpose of this study was to evaluate changes in the structure and some functional properties of biofilms added with modified clays (Cloisite® 15A and Cloisite® 30B) prepared by the casting method. The analysis of the microstructure of the films, scanning electron microscopy (SEM), Optical micro...
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Sociedade Brasileira de Ciência e Tecnologia de Alimentos
2012-06-01
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doaj-e6bb0ef768db498c87fa0add2b7d9b7e2020-11-24T23:37:07ZengSociedade Brasileira de Ciência e Tecnologia de AlimentosFood Science and Technology1678-457X2012-06-01322314322S0101-20612012000200017Effect of modified clays on the structure and functional properties of biofilms produced with zeinLuciana Lopes Tavares0Crislene Barbosa de Almeida1Ícaro Putinhon Caruso2Marinônio Lopes Cornélio3José Francisco Lopes Filho4Universidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaThe purpose of this study was to evaluate changes in the structure and some functional properties of biofilms added with modified clays (Cloisite® 15A and Cloisite® 30B) prepared by the casting method. The analysis of the microstructure of the films, scanning electron microscopy (SEM), Optical microscopy (MO), and Infrared Spectroscopy (FTIR) indicated that the addition of clay in the films resulted in the formation of a heterogeneous microstructure, microcomposite or tactoid. Due to the formation of a microcomposite structure, functional properties of the films added with both clays such as opacity, solubility, and permeability to water vapor (PVA), were not better than those of the control film. Thus, it was concluded that although it is possible to produce a film added with modified clays using the casting method, it was not possible to obtain intercalation or exfoliation in a nanocomposite, which would result in improved functional properties.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000200017&lng=en&tlng=enbiofilmeszeínaargilasmicrocompósitostactoides |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Luciana Lopes Tavares Crislene Barbosa de Almeida Ícaro Putinhon Caruso Marinônio Lopes Cornélio José Francisco Lopes Filho |
spellingShingle |
Luciana Lopes Tavares Crislene Barbosa de Almeida Ícaro Putinhon Caruso Marinônio Lopes Cornélio José Francisco Lopes Filho Effect of modified clays on the structure and functional properties of biofilms produced with zein Food Science and Technology biofilmes zeína argilas microcompósitos tactoides |
author_facet |
Luciana Lopes Tavares Crislene Barbosa de Almeida Ícaro Putinhon Caruso Marinônio Lopes Cornélio José Francisco Lopes Filho |
author_sort |
Luciana Lopes Tavares |
title |
Effect of modified clays on the structure and functional properties of biofilms produced with zein |
title_short |
Effect of modified clays on the structure and functional properties of biofilms produced with zein |
title_full |
Effect of modified clays on the structure and functional properties of biofilms produced with zein |
title_fullStr |
Effect of modified clays on the structure and functional properties of biofilms produced with zein |
title_full_unstemmed |
Effect of modified clays on the structure and functional properties of biofilms produced with zein |
title_sort |
effect of modified clays on the structure and functional properties of biofilms produced with zein |
publisher |
Sociedade Brasileira de Ciência e Tecnologia de Alimentos |
series |
Food Science and Technology |
issn |
1678-457X |
publishDate |
2012-06-01 |
description |
The purpose of this study was to evaluate changes in the structure and some functional properties of biofilms added with modified clays (Cloisite® 15A and Cloisite® 30B) prepared by the casting method. The analysis of the microstructure of the films, scanning electron microscopy (SEM), Optical microscopy (MO), and Infrared Spectroscopy (FTIR) indicated that the addition of clay in the films resulted in the formation of a heterogeneous microstructure, microcomposite or tactoid. Due to the formation of a microcomposite structure, functional properties of the films added with both clays such as opacity, solubility, and permeability to water vapor (PVA), were not better than those of the control film. Thus, it was concluded that although it is possible to produce a film added with modified clays using the casting method, it was not possible to obtain intercalation or exfoliation in a nanocomposite, which would result in improved functional properties. |
topic |
biofilmes zeína argilas microcompósitos tactoides |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000200017&lng=en&tlng=en |
work_keys_str_mv |
AT lucianalopestavares effectofmodifiedclaysonthestructureandfunctionalpropertiesofbiofilmsproducedwithzein AT crislenebarbosadealmeida effectofmodifiedclaysonthestructureandfunctionalpropertiesofbiofilmsproducedwithzein AT icaroputinhoncaruso effectofmodifiedclaysonthestructureandfunctionalpropertiesofbiofilmsproducedwithzein AT marinoniolopescornelio effectofmodifiedclaysonthestructureandfunctionalpropertiesofbiofilmsproducedwithzein AT josefranciscolopesfilho effectofmodifiedclaysonthestructureandfunctionalpropertiesofbiofilmsproducedwithzein |
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