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Impact of additives on mechanical and barrier properties of starch-based films plasticized with deep eutectic solvents
West Pomeranian University Technolgy, Polen.
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences (from 2013).ORCID iD: 0000-0001-7368-7227
2017 (English)In: Starke (Weinheim), ISSN 0038-9056, E-ISSN 1521-379X, Vol. 69, no 11-12, article id UNSP 1700030Article in journal (Refereed) Published
Abstract [en]

The aim of this work was to prepare starch-based films plasticized with two and three-component deep eutectic solvents (DES) in the presence of different additives:aluminosilicates (sodium and calcium montmorillonite), microcrystalline cellulose, and tannin; and to investigate their influence on mechanical and barrier properties of the films. Mutual interactions between polysaccharide matrix, plasticizer, and additive were investigated by Fourier transform infrared (FTIR) spectroscopy. Two types of starches were used:native potato starch (TPS) and hydroxypropylated, oxidized potato starch (HOPS). The two-component DES CC:G consisted of choline chloride (CC) and glycerol (G), whereas the three-component DES with crosslinking activity CCit:U:G, included choline citrate (CCit), urea (U), and glycerol. For the TPS/CCit:U:G films an improvement of the mechanical and barrier properties was obtained after introduction of additives, whereas for TPS/CC:G only a slight decrease in water vapor transmission rate was observed, without any significant improvement in mechanical properties. Moreover, the mechanical test results, FTIR spectra, and the oxygen transmission rate values revealed that the clays interacted with plasticizer components, thereby hindering crosslinking reactions between plasticizer and starch.

Place, publisher, year, edition, pages
Wiley , 2017. Vol. 69, no 11-12, article id UNSP 1700030
National Category
Chemical Sciences
Research subject
Chemistry
Identifiers
URN: urn:nbn:se:kau:diva-65925DOI: 10.1002/star.201700030ISI: 000417019700011OAI: oai:DiVA.org:kau-65925DiVA, id: diva2:1177641
Available from: 2018-01-25 Created: 2018-01-25 Last updated: 2018-07-04Bibliographically approved

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Johansson, Caisa

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