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Title of article :
Characterization of films made with chayote tuber and potato starches blending with cellulose nanoparticles
Author/Authors :
Aila-Suلrez، نويسنده , , Selene and Palma-Rodrيguez، نويسنده , , Heidi M. and Rodrيguez-Hernلndez، نويسنده , , Adriana I. and Hernلndez-Uribe، نويسنده , , Juan P. and Bello-Pérez، نويسنده , , Luis A. and Vargas-Torres، نويسنده , , Apolonio Gallegos-Cruz، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
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Abstract :
The aim of this study was to characterize chayotextle starch films reinforced with cellulose (C) and cellulose nanoparticle (CN) (at concentrations of 0.3%, 0.5%, 0.8% and 1.2%), using thermal, mechanical, physicochemical, permeability, and water solubility tests. C was acid-treated to obtain CN. The films were prepared by casting; potato starch and C were used as the control. The solubility of the starch films decreased with the addition of C and CN compared with its respective film without C and CN. No statistical difference (α = 0.05) was found in the films added with different concentrations of C and CN. In general, the mechanical properties were improved with the addition of C and CN, and higher values of tensile strength and elastic modulus were determined in the films reinforced with CN. The melting temperature and enthalpy increased with the addition of C and CN, and the values of both thermal parameters were higher in the films with CN than with C; the enthalpy value of the film decreased when the concentration of C or CN increased in the composite. Low concentration of C and CN is better distributed in the matrix film. The addition of C and CN in the starch films improved some mechanical, barrier, and functional properties.
Keywords :
Cellulose nanoparticle (CN) , Casting films , Thermal Properties , Chayotextle starch (CS) , Mechanical Test
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