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Preparation and characterization of starch-based composite films reinfoced by polysaccharide-based crystals

Lookup NU author(s): Professor David XieORCiD

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).

Abstract

Starch-based films, reinforced by two types of polysaccharide-based crystals, were prepared and compared. The films were transparent, and their surface was smooth in appearance. Addition of crystals increased the Young's modulus and tensile strength of starch-based materials and decreased elongation at break. Scanning electron microscopic observation indicated good compatibility between the starch matrix and the reinforcing fillers due to the same chemical unit (glucose). Cellulose crystals have higher thermal stability than that of starch crystals; this provides better processibility and superior mechanical properties to starch films filled with cellulose crystals. On the other hand, starch films filled with starch crystals demonstrated higher protection against UV radiation. Since all the components used in this work belong to food sources, the prepared films are biodegradable, safe for food packaging and can also be used to develop edible films (such as wrappers for candies) and medicinal capsules (both soft and hard capsules).

Publication metadata

Author(s): Ali A, Xie F, Yu L, Liu H, Meng L, Khalid S, Chen L

Publication type: Article

Publication status: Published

Journal: Composites Part B: Engineering

Year: 2018

Volume: 133

Pages: 122-128

Print publication date: 15/01/2018

Online publication date: 08/09/2017

Acceptance date: 08/09/2017

Date deposited: 23/05/2023

ISSN (print): 1359-8368

ISSN (electronic): 1879-1069

Publisher: Elsevier

URL: https://doi.org/10.1016/j.compositesb.2017.09.017

DOI: 10.1016/j.compositesb.2017.09.017

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