Mechanical Properties, Water Vapor Permeabilities and Solubilities of Highly Carboxymethylated Starch-Based Edible Films |
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| Authors: | KW Kim CJ Ko HJ Park |
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| Affiliation: | Author Kim is with the Graduate School of Biotechnology, Seoul 136-701, Korea. Author Ko is with the VIXXOL Corp., Kyonggi-Do 430-817, Korea. Author Park is with the Graduate School of Biotechnology, Seoul 136-701, Korea and the Dept. of Packaging Science, Clemson University, Clemson, SC 29634-0370, U.S.A. Direct inquiries to author Park (E-mail: ). |
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| Abstract: | ABSTRACT: Tensile strength (TS), elongation (E), water vapor permeabilities (WVP) and solubilities were determined for highly carboxymethylated starch (HCMS)-based edible films plasticized with sorbitol (S), xylitol (X), mannitol (M) and glycerol (G). TS and E of HCMS-based film increased as the concentration of plasticizer S, M or × increased. TS of the HCMS-based film containing combined plasticizers were higher than those of films containing single plasticizer. The WVP of HCMS-based films seemed to decreased as the concentration of M, X or G plasticizer increased. Increasing plasticizer concentrations in HCMS-based film resulted in decreasing solubility of the films. |
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| Keywords: | edible film highly carboxymethylated starch pullulan plasticizer solubility |
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