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Plasticization of zein: A thermomechanical, FTIR, and dielectric study

Gillgren, T., Barker, S.A., Belton, P.S., Georget, D.M.R., Stading, M. (2009) Plasticization of zein: A thermomechanical, FTIR, and dielectric study. Biomacromolecules, 10 (5). pp. 1135-1139. ISSN 1525-7797. (doi:10.1021/bm801374q) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:78856)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
https://doi.org/10.1021/bm801374q

Abstract

Zein, the main seed storage protein of maize, has been widely studied as a possible source of material for the production of biodegradable plastic films. Plasticization of zein is critical to make functional films. While there have been a number of publications which report the behavior of systems with a wide variety of plasticizers, there have been few which attempt to examine the interactions of protein and plasticizer at the molecular level. In this paper, we report on the plasticizing effects of water, glycerol, and 2-mercaptoethanol, which were examined by a combination of spectroscopy (FTIR and dielectric) and thermomechanical methods. The results suggest that both water and glycerol are adsorbed onto the protein and form hydrogen bonds with the amide groups. The plasticizer then builds up in patches on the protein surface. 2-Mercaptoethanol only exhibited a weak plasticizing effect due probably to disulfide bond breaking.

Item Type: Article
DOI/Identification number: 10.1021/bm801374q
Uncontrolled keywords: 2-mercaptoethanol, Amide groups, Biodegradable plastics, Dielectric studies, Disulfide bonds, FTIR, Functional films, Molecular levels, Plasticizing effects, Protein surface, Seed storage proteins, Thermo-mechanical, Amides, Biopolymers, Fourier transform infrared spectroscopy, Functional polymers, Glycerol, Hydrogen, Hydrogen bonds, Plasticizers, Protective coatings, Reinforced plastics, Solvents, Thermomechanical treatment, Biodegradable polymers, glycerol, mercaptoethanol, plasticizer, water, zein, article, biodegradability, disulfide bond, hydrogen bond, infrared spectroscopy, maize, priority journal, protein analysis, protein interaction, Adsorption, Biocompatible Materials, Electric Conductivity, Glycerol, Hydrogen Bonding, Macromolecular Substances, Materials Testing, Mercaptoethanol, Plasticizers, Spectroscopy, Fourier Transform Infrared, Temperature, Water, Zein, Zea mays
Divisions: Faculties > Sciences > Medway School of Pharmacy
Depositing User: Susan Barker
Date Deposited: 27 Nov 2019 10:51 UTC
Last Modified: 27 Nov 2019 10:51 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/78856 (The current URI for this page, for reference purposes)
Barker, S.A.: https://orcid.org/0000-0003-4880-0253
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