Paper Title:
The Use of Aqueous Urea as Chemical Denaturant in Processing CGM into a Biodegradable Polymer Material
  Abstract

Corn gluten meal (CGM) has potential as a bioderived polymer for use in composite materials. Previous work to improve the processability of CGM has focused on the use of plasticisers including water, polyethylene glycol, glycerol and octanoic acid, however, a common problem is that these leach from the material subsequent to processing [1]. It has been raised that a certain degree of denaturation must occur in order to make proteins processable [2]. The current work explores the use of aqueous urea as chemical denaturant in processing CGM into a biodegradable polymer material. Consolidated materials were obtained which showed increased resistance to cracking with higher urea concentration. FTIR analysis revealed that processing CGM with increased concentrations of aqueous urea resulted in the progressive transformation of the protein secondary structure from an ordered, clustered conformation to that of extended chains. Aqueous urea is assumed to promote protein-solvent interactions which stabilise the extended chain conformations.

  Info
Periodical
Advanced Materials Research (Volumes 29-30)
Edited by
Deliang Zhang, Kim Pickering, Brian Gabbitas, Peng Cao, Alan Langdon, Rob Torrens and Johan Verbeek
Pages
181-184
DOI
10.4028/www.scientific.net/AMR.29-30.181
Citation
C. Viljoen, C.J.R. Verbeek, K.L. Pickering, "The Use of Aqueous Urea as Chemical Denaturant in Processing CGM into a Biodegradable Polymer Material ", Advanced Materials Research, Vols. 29-30, pp. 181-184, 2007
Online since
November 2007
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$32.00
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