Publicação: Effect of modified clays on the structure and functional properties of biofilms produced with zein
Nenhuma Miniatura disponível
Data
2012-04-01
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Soc Brasileira Ciência Tecnologia Alimentos
Tipo
Artigo
Direito de acesso
Acesso aberto
Resumo
The purpose of this study was to evaluate changes in the structure and some functional properties of biofilms added with modified clays (Cloisite (R) 15A and Cloisite (R) 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.
Descrição
Palavras-chave
Idioma
Inglês
Como citar
Ciência e Tecnologia de Alimentos. Campinas: Soc Brasileira Ciência Tecnologia Alimentos, v. 32, n. 2, p. 314-322, 2012.
