Home About Browse Search
Svenska


Improved material properties of solution-cast starch films: effect of varying amylopectin structure and amylose content of starch from genetically modified potatoes

Menzel, Carolin and Andersson, Mariette and Andersson, Roger and Vázquez Gutiérrez, José Luis and Daniel, Geoffrey and Langton, Maud and Gällstedt, Mikael and Koch, Kristine (2015). Improved material properties of solution-cast starch films: effect of varying amylopectin structure and amylose content of starch from genetically modified potatoes. Carbohydrate polymers. 130, 388-397
[Journal article]

[img]
Preview
PDF - Accepted Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

2MB

Official URL: http://dx.doi.org/10.1016/j.carbpol.2015.05.024

Abstract

High-amylose potato starches were produced through genetic modification resulting in changed granule morphology and composition, with higher amylose content and increased chain length of amylopectin. The increased amylose content and structural changes in amylopectin enhanced film-forming behavior and improved barrier and tensile properties in starch films. The molecular structure in these starches was related to film-forming properties. Solution-cast films of high-amylose starch revealed a homogeneous structure with increasing surface roughness at higher amylose content, possibly due to amylose aggregation. Films exhibited significantly higher stress and strain at break compared with films of wild-type starch, which could be attributable to the longer chains of amylopectin being involved in the interconnected network and more interaction between chains, as shown using transmission electron microscopy. The oxygen permeability of high-amylose starch films was significantly decreased compared with wildtype starch. The nature of the modified starches makes them an interesting candidate for replacement of non-renewable oxygen and grease barrier polymers used today. (C) 2015 Elsevier Ltd. All rights reserved.

Authors/Creators:Menzel, Carolin and Andersson, Mariette and Andersson, Roger and Vázquez Gutiérrez, José Luis and Daniel, Geoffrey and Langton, Maud and Gällstedt, Mikael and Koch, Kristine
Title:Improved material properties of solution-cast starch films: effect of varying amylopectin structure and amylose content of starch from genetically modified potatoes
Series/Journal:Carbohydrate polymers (0144-8617)
Year of publishing :2015
Depositing date:3 February 2016
Volume:130
Page range:388-397
Number of Pages:10
Publisher:Elsevier
ISSN:0144-8617
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Agris subject categories.:F Plant production > F30 Plant genetics and breeding
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 204 Chemical Engineering > Polymer Technologies
Agrovoc terms:potato starch, amylose, amylopectin, genetic improvement
Keywords:High-amylose potato starch, Film forming, Molecular structure, Chain-length, Amylopectin, Microscopy
URN:NBN:urn:nbn:se:slu:epsilon-e-3195
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-3195
Additional ID:
Type of IDID
Web of Science (WoS)000357244900047
DOI10.1016/j.carbpol.2015.05.024
ID Code:13014
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
NJ - Fakulteten för naturresurser och jordbruksvetenskap
S - Faculty of Forest Sciences
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
(NL, NJ) > Dept. of Food Science (until 161231)
(S) > Dept. of Forest Products
Deposited By: SLUpub Connector
Deposited On:03 Feb 2016 08:59
Metadata Last Modified:19 May 2016 23:15

Repository Staff Only: item control page