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Properties of Novel Hydroxypropyl Methylcellulose Films Containing Chitosan Nanoparticles

Authors

  • M.R. De Moura,

    1. Author de Moura is with Chemistry Dept. of UFSCar, São Carlos/SP, Brazil. Authors Avena-Bustillos and McHugh are with Agricultural Research Service, Western Regional Research Center, Albany, CA, U.S.A. Author Krochta is with Dept. of Food Science and Technology, Univ. of California, Davis, CA, U.S.A. Authors de Moura and Mattoso are with Natl. Nanotechnology Lab. for Agriculture, EMBRAPA-CNPDIA, São Carlos/SP, Brazil. Direct inquiries to author Mattoso (E-mail: mattoso@cnpdia.embrapa.br).
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  • R.J. Avena-Bustillos,

    1. Author de Moura is with Chemistry Dept. of UFSCar, São Carlos/SP, Brazil. Authors Avena-Bustillos and McHugh are with Agricultural Research Service, Western Regional Research Center, Albany, CA, U.S.A. Author Krochta is with Dept. of Food Science and Technology, Univ. of California, Davis, CA, U.S.A. Authors de Moura and Mattoso are with Natl. Nanotechnology Lab. for Agriculture, EMBRAPA-CNPDIA, São Carlos/SP, Brazil. Direct inquiries to author Mattoso (E-mail: mattoso@cnpdia.embrapa.br).
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  • T.H. McHugh,

    1. Author de Moura is with Chemistry Dept. of UFSCar, São Carlos/SP, Brazil. Authors Avena-Bustillos and McHugh are with Agricultural Research Service, Western Regional Research Center, Albany, CA, U.S.A. Author Krochta is with Dept. of Food Science and Technology, Univ. of California, Davis, CA, U.S.A. Authors de Moura and Mattoso are with Natl. Nanotechnology Lab. for Agriculture, EMBRAPA-CNPDIA, São Carlos/SP, Brazil. Direct inquiries to author Mattoso (E-mail: mattoso@cnpdia.embrapa.br).
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  • J.M. Krochta,

    1. Author de Moura is with Chemistry Dept. of UFSCar, São Carlos/SP, Brazil. Authors Avena-Bustillos and McHugh are with Agricultural Research Service, Western Regional Research Center, Albany, CA, U.S.A. Author Krochta is with Dept. of Food Science and Technology, Univ. of California, Davis, CA, U.S.A. Authors de Moura and Mattoso are with Natl. Nanotechnology Lab. for Agriculture, EMBRAPA-CNPDIA, São Carlos/SP, Brazil. Direct inquiries to author Mattoso (E-mail: mattoso@cnpdia.embrapa.br).
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  • L.H.C. Mattoso

    1. Author de Moura is with Chemistry Dept. of UFSCar, São Carlos/SP, Brazil. Authors Avena-Bustillos and McHugh are with Agricultural Research Service, Western Regional Research Center, Albany, CA, U.S.A. Author Krochta is with Dept. of Food Science and Technology, Univ. of California, Davis, CA, U.S.A. Authors de Moura and Mattoso are with Natl. Nanotechnology Lab. for Agriculture, EMBRAPA-CNPDIA, São Carlos/SP, Brazil. Direct inquiries to author Mattoso (E-mail: mattoso@cnpdia.embrapa.br).
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Abstract

ABSTRACT:  In this study, chitosan nanoparticles were prepared and incorporated in hydroxypropyl methylcellulose (HPMC) films under different conditions. Mechanical properties, water vapor and oxygen permeability, water solubility, and scanning and transmission electron microscopy (SEM and TEM) results were analyzed. Incorporation of chitosan nanoparticles in the films improved their mechanical properties significantly, while also improving film barrier properties significantly. The chitosan poly(methacrylic acid) (CS-PMAA) nanoparticles tend to occupy the empty spaces in the pores of the HPMC matrix, inducing the collapse of the pores and thereby improving film tensile and barrier properties. This study is the first to investigate the use of nanoparticles for the purpose of strengthening HPMC films.

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