- Title
- Characterization of starch films containing starch nanoparticles Part 1: Physical and mechanical properties
- Creator
- Shi, Aimin; Wang, Li-Jun; Li, Dong; Adhikari, Benu
- Date
- 2013
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/40295
- Identifier
- vital:5253
- Identifier
-
https://doi.org/10.1016/j.carbpol.2012.12.042
- Identifier
- ISSN:0144-8617
- Abstract
- We report, for the first time, the preparation method and characteristics of starch films incorporating spray dried and vacuum freeze dried starch nanoparticles. Physical properties of these films such as morphology, crystallinity, water vapor permeability (WVP), opacity, and glass transition temperature (Tg) and mechanical properties (strain versus temperature, strain versus stress, Young's modulus and toughness) were measured. Addition of both starch nanoparticles in starch films increased roughness of surface, lowered degree of crystallinity by 23.5%, WVP by 44% and Tg by 4.3 °C, respectively compared to those of starch-only films. Drying method used in preparation of starch nanoparticles only affected opacity of films. The incorporation of nanoparticles in starch films resulted into denser films due to which the extent of variation of strain with temperature was much lower. The toughness and Young's modulus of films containing both types of starch nanoparticles were lower than those of control films especially at <100 °C. © 2012 Elsevier Ltd. All rights reserved.; C1
- Relation
- Carbohydrate Polymers Vol. 96, no. 2 (2013), p. 593-601
- Rights
- Copyright Elsevier
- Rights
- This metadata is freely available under a CCO license
- Subject
- 0305 Organic Chemistry; 0908 Food Sciences; 0303 Macromolecular and Materials Chemistry; Corn starch film; Mechanical properties; Physical properties; Starch nanoparticles; Corn starch; Crystallinities; Degree of crystallinity; Physical and mechanical properties; Preparation method; Roughness of surface; Water vapor permeability; Elastic moduli; Film preparation; Nanoparticles; Opacity; Strain; Toughness; Starch; Zea mays
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