Corn starch 80:20 "waxy":regular, "native" and phosphated, as bio-matrixes for edible films

Films made from starches are colorless, tasteless, non-toxic, biodegradable, and economical, besides having a low permeability to oxygen. Moreover, the cross-linking modification (phosphatation) could improve its physicochemical properties by reinforcing the hydrogen links inside the granules. The g...

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Detalhes bibliográficos
Autores: Gutiérrez Carmona, Tomy José, Morales Mendoza, Noe Javier, Tapia, Maria Soledad, Pérez, Elevina
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2015
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositório:CONICET Digital (CONICET)
Idioma:inglês
OAI Identifier:oai:ri.conicet.gov.ar:11336/77212
Acesso em linha:http://hdl.handle.net/11336/77212
Access Level:Acceso aberto
Palavra-chave:Starch
Chemical Modification
Corn
Edible Films
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
Descrição
Resumo:Films made from starches are colorless, tasteless, non-toxic, biodegradable, and economical, besides having a low permeability to oxygen. Moreover, the cross-linking modification (phosphatation) could improve its physicochemical properties by reinforcing the hydrogen links inside the granules. The goals of this study were to elaborate and characterize starch corn films 80:20 ?waxy?:regular, from native and modified (cross-linked), to define their potential application. Results showed, that films with modified starch had highest hydrophilic properties which increased its thickness, permeability and solubility, and with mayor stability in acidic and alkaline medium. Finally, physicochemical properties and water vapor barrier data of the films denote the strong interaction phosphated starch-plasticizer.