Journal
JOURNAL OF CEREAL SCIENCE
Volume 54, Issue 1, Pages 168-172Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jcs.2011.05.003
Keywords
Composite; Biodegradable; Gliadin; Particle-bonding
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In previous papers, a new technology that produces biopolymer composites by particle-bonding was introduced. During the manufacturing process, micrometer-scale raw material was coated with a corn (Zea mays L.) protein, zein, which was then processed to form a rigid material. The coating of raw-material particles with zein makes use of the unique property of this protein in aqueous ethanol solution. In this paper, it is shown that the behavior of a wheat (Triticum aestivum L.) protein, gliadin, is very similar to zein in aqueous ethanol. Size variation of aggregates in 45-65% aqueous ethanol was investigated with a turbidimeter in conjunction with Size Exclusion Chromatography. Confirming the resemblance of gliadin to zein in terms of aggregation behavior in aqueous alcohol, composites were fabricated by particle-bonding and their mechanical property was measured with a Universal Testing Machine. Test results showed that gliadin is a good substitute for zein in the production of composites. Published by Elsevier Ltd.
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