Physicochemical and Engineering Properties of Nanocomposite Films Based on Chitosan and Pseudoboehmite Alumina

Chitosan-based nanocomposite plastic films were developed by adding 0, 1, 3, and 5 % boehmite alumina (BAH) nanoparticles as a percentage of chitosan powder weight. The films were cast via solution. The effect of BAH content on the physicochemical and engineering properties of the resultant films we...

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Bibliographic Details
Published inFood and bioprocess technology Vol. 7; no. 8; pp. 2423 - 2433
Main Authors Shittu, T. A, Jayaramudu, J, Sivakumar, D, Sadiku, E. R
Format Journal Article
LanguageEnglish
Published Boston Springer-Verlag 01.08.2014
Springer US
Springer Nature B.V
Subjects
activation energy
Agriculture
Aluminum oxide
Biodegradability
Biodegradation
Biotechnology
Boehmite
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Chitosan
engineering
Food Science
fresh produce
Microbial degradation
Microorganisms
Nanocomposites
Nanoparticles
Original Paper
Permeability
physicochemical properties
Polymer films
regression analysis
Regression models
Relative humidity
temperature
thermal properties
Water vapor
Chitosan
Engineering properties
Alumina
Nanocomposite film
Water vapor permeability
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Summary:Chitosan-based nanocomposite plastic films were developed by adding 0, 1, 3, and 5 % boehmite alumina (BAH) nanoparticles as a percentage of chitosan powder weight. The films were cast via solution. The effect of BAH content on the physicochemical and engineering properties of the resultant films were determined. The swelling, water vapor adsorption capacity, and transparency were significantly reduced with increased BAH content. The stability of the films against microbial degradation under high relative humidity also increased with BAH content. The water vapor permeability (WVP) reduced with increased temperature giving rise to negative activation energy values, which ranged between 2.08 and 3.36 kJ/mol. However, at constant temperature, inclusion of BAH did not have significant effect on water vapor permeability (WVP). WVP was predicted to high accuracy (r ² = 0.984) using a full quadratic regression model. All the films had similar tensile and thermal behaviors. The implications of the findings are discussed based on prospective applications of the biodegradable film especially for fresh produce packaging.
Bibliography:http://dx.doi.org/10.1007/s11947-014-1305-y
ISSN:1935-5130
1935-5149
DOI:10.1007/s11947-014-1305-y