Mechanical and structural properties of solution-cast high-amylose maize starch films

Abstract

Environmental issues have forced the introduction of sustainable solutions such as annually renewable resources being used as a raw material for packaging and disposables. This paper examined the effects of time and temperature during manufacturing and plasticiser content on the molecular structure of high-amylose maize starch films. It also analysed how manufacturing conditions, plasticiser content and molecular structure of the films affected their material properties. It was found that increased time or temperature increased the degradation of amylose and of amylopectin, which in turn negatively affected film cohesiveness. However, neither time nor temperature had any effect on tensile properties. (C) 2009 Elsevier B.V. All rights reserved.

Keywords

High-amylose maize starch films; Solution casting; Molecular structure; Mechanical properties; Iodine staining; Plasticisation

Published in

International Journal of Biological Macromolecules
2010, volume: 46, number: 1, pages: 13-19
Publisher: ELSEVIER SCIENCE BV

SLU Authors

• Koch, Kristine

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Andersson, Roger

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Biochemistry and Molecular Biology

Publication identifier

• DOI: https://doi.org/10.1016/j.ijbiomac.2009.10.002

Permanent link to this page (URI)

https://res.slu.se/id/publ/60565