Estudio preliminar de las propiedades físicas y antibacteriales de películas de almidones modificados de avena mezclados con quitosano

Autores/as

  • Juan Manuel Tirado-Gallegos Autonomous University of Chihuahua image/svg+xml
  • Paul Baruk Zamudio Flores Centro de Investigación en Alimentación y Desarrollo
  • Juan Carlos Bustillos-Rodríguez Centro de Investigación en Alimentación y Desarrollo image/svg+xml
  • Carlos Horacio Acosta-Muñiz Centro de Investigación en Alimentación y Desarrollo image/svg+xml
  • Rogelio Calderón-Loera Centro de Investigación en Alimentación y Desarrollo image/svg+xml
  • Miguel Ángel López-Mata Departamento de Ciencias de la Salud
  • Glenda Pacheco-Vargas Instituto Politécnico Nacional image/svg+xml
  • María Hernández-González Universidad Autónoma Agraria Antonio Narro image/svg+xml
  • Haydeé Yajaira López-De la Peña Universidad Autónoma Agraria Antonio Narro image/svg+xml
  • Adalberto Ortega-Ortega Autonomous University of Chihuahua image/svg+xml
  • Gilber Vela-Gutiérrez Universidad de Ciencias y Artes de Chiapas image/svg+xml
  • Vicente Espinosa-Solis Autonomous University of San Luis Potosí image/svg+xml

DOI:

https://doi.org/10.18633/biotecnia.v26.2072

Palabras clave:

Películas degradables, autoclaveado, lintnerización, propiedad antibacterial, permeabilidad al vapor de agua, solubilidad

Resumen

Se realizó una modificación física (autoclaveado) y cinco modificaciones químicas (lintnerización, entrecruzamiento, acetilación, hidroxipropilación y oxidación) al almidón nativo de avena. Los almidones se mezclaron con quitosano (Q) y plastificante (glicerol) para elaborar películas. Las soluciones formadoras de película (SFP) se caracterizaron reológicamente. En las películas se evaluaron las propiedades físicas (color, grosor, humedad y solubilidad), la permeabilidad al vapor de agua y al oxígeno (10 y 25 °C) y las propiedades mecánicas. La actividad antibacterial se evaluó durante 21 días contra Eschericia coli, Staphylococcus aureus y Listeria monocytogenes por difusión en agar mediante el conteo de coliformes aerobios totales y fecales. Todas las SFP presentaron comportamiento pseudoplástico. La adición de Q aumentó la tensión a la fractura (TF) y disminuyó el porcentaje de elongación (%E) en todas las películas; siendo la formulación Oxidado-Q la que presentó el mayor incremento ( 200 %) en TF y la menor disminución (38 %) en %E. Todas formulaciones con Q presentaron actividad antibacterial, la cual fue mayor en la película Oxidado-Q y disminuyó con el tiempo de evaluación. En general, los resultados indicaron que la película Oxidado-Q puede representar una formulación conveniente como envase antibacteriano con adecuadas propiedades físicas, mecánicas y de barrera. 

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2024-04-08

Cómo citar

Tirado-Gallegos, J. M., Zamudio Flores, P. B., Bustillos-Rodríguez, J. C., Acosta-Muñiz, C. H., Calderón-Loera, R., López-Mata, M. Ángel, … Espinosa-Solis, V. (2024). Estudio preliminar de las propiedades físicas y antibacteriales de películas de almidones modificados de avena mezclados con quitosano. Biotecnia, 26, e2072. https://doi.org/10.18633/biotecnia.v26.2072

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