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Rheological performance of film-forming solutions made from plasma-modified starches with different amylose/amylopectin content.
Hernandez-Perez, Pablo; Flores-Silva, Pamela C; Velazquez, Gonzalo; Morales-Sanchez, Eduardo; Rodríguez-Fernández, Oliverio; Hernández-Hernández, Ernesto; Mendez-Montealvo, Guadalupe; Sifuentes-Nieves, Israel.
Afiliação
  • Hernandez-Perez P; Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Cerro Blanco No. 141, Col. Colinas del Cimatario, C.P. 76090, Santiago de Querétaro, Querétaro, Mexico.
  • Flores-Silva PC; Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Cerro Blanco No. 141, Col. Colinas del Cimatario, C.P. 76090, Santiago de Querétaro, Querétaro, Mexico.
  • Velazquez G; Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Cerro Blanco No. 141, Col. Colinas del Cimatario, C.P. 76090, Santiago de Querétaro, Querétaro, Mexico.
  • Morales-Sanchez E; Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Cerro Blanco No. 141, Col. Colinas del Cimatario, C.P. 76090, Santiago de Querétaro, Querétaro, Mexico.
  • Rodríguez-Fernández O; Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna No. 140, C.P. 25253, Saltillo, Coahuila, Mexico.
  • Hernández-Hernández E; Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna No. 140, C.P. 25253, Saltillo, Coahuila, Mexico.
  • Mendez-Montealvo G; Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Cerro Blanco No. 141, Col. Colinas del Cimatario, C.P. 76090, Santiago de Querétaro, Querétaro, Mexico. Electronic address: cmendez@ipn.mx.
  • Sifuentes-Nieves I; Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna No. 140, C.P. 25253, Saltillo, Coahuila, Mexico. Electronic address: israel.sifuentes@ciqa.edu.mx.
Carbohydr Polym ; 255: 117349, 2021 Mar 01.
Article em En | MEDLINE | ID: mdl-33436191
Normal and high amylose corn starches were modified using HMDSO plasma at different time treatments. Changes in functional properties of starch granule, film-forming solutions (FFS) and films were investigated. SEM analysis revealed HMDSO coating deposition on the granule surface, which limited the amylopectin leach out from the granules to the continuous matrix, affecting the rheological properties of the FFS. The amylopectin restriction resulted in a low reinforcement of the network decreasing the viscosity as indicated by n and k values. Also, a gel-like behavior (G' > G″) was observed when the amylose and time treatment increased, suggesting that the matrix becomes less elastic with softer entanglement. This behavior was confirmed by creep test and Burger model parameters. The plasma treatments allowed obtaining FFS with low viscosity, suitable for developing soft and hydrophobic films with low flexibility, as indicated by the decrease of the maximum stress, Hencky strain and permeance values.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Carbohydr Polym Ano de publicação: 2021 Tipo de documento: Article País de afiliação: México País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Carbohydr Polym Ano de publicação: 2021 Tipo de documento: Article País de afiliação: México País de publicação: Reino Unido