Developments in the science of zein, kafirin, and gluten protein bioplastic materials

Show simple item record Taylor, Janet Anyango, Joseph Ochieng Taylor, J.R.N. (John Reginald Nuttall) 2013-12-12T07:22:12Z 2013-12-12T07:22:12Z 2013-07
dc.description.abstract Despite much research, there are very few commercial prolamin bio-plastics. The major reason, apart from their high cost, is that they have inferior functional properties compared to synthetic polymer plastics. This is because the prolamins are complex, each consisting of several classes and sub-classes and the functional properties of their bio-plastics are greatly affected by water. Prolamin bio-plastics are produced by protein aggregation from a solvent or by thermoplastic processing. Recent research indicates that protein aggregation occurs by polypeptide self-assembly into nanostructures. Protein secondary structure in terms of α- helical and β-sheet structure seems to play a key, but incompletely understood role in assembly. Also, there is inadequate knowledge as to how these nanostructures further assemble and organize into the various forms of prolamin bio-plastics such as films, fibres, microparticles and scaffolds. Some improvements in bio-plastic functionality have been made by better prolamin solvation, plasticization, physical and chemical cross-linking, derivatization and blending with other polymers. The most promising area of commercialization is the biomedical field where the relative hydrophilicity, compatibility and biodegradability of particularly zein and kafirin are advantageous. With regard to biomedical applications, “supramolecular design” of prolamin bio-plastics through control over interand intramolecular weak interactions and SS/SH interchange between and within polypeptides appears to have considerable potential. en_US
dc.description.librarian hb2013 en_US
dc.description.sponsorship University of Pretoria doctoral bursary en_US
dc.description.uri en_US
dc.identifier.citation Taylor, J, Anyango, JO & Taylor, JRN 2013, 'Developments in the science of zein, kafirin, and gluten protein bioplastic materials', Cereal Chemistry, vol. 90, no. 4, pp.344-357. en_US
dc.identifier.issn 0009-0352 (print)
dc.identifier.other 10.1094/CCHEM-12-12-0165-IA
dc.language.iso en en_US
dc.publisher American Association of Cereal Chemists en_US
dc.rights © 2013 AACC International, Inc. en_US
dc.subject Biomedical en_US
dc.subject Bio-plastic en_US
dc.subject Cross-linking en_US
dc.subject Film en_US
dc.subject Microparticle en_US
dc.subject Prolamin en_US
dc.subject Scaffold en_US
dc.subject Secondary structure en_US
dc.subject Self-assembly en_US
dc.title Developments in the science of zein, kafirin, and gluten protein bioplastic materials en_US
dc.type Preprint Article en_US

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