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Developing Water Stable Gliadin Films Without Using Crosslinking Agents

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Abstract

For the first time, gliadin films with excellent strength and water stability have been developed without using any crosslinking agents. So far, it has not been possible to obtain water stable gliadin films even after crosslinking. In this research, a novel method of using aqueous urea and ethanol has been developed to obtain highly water stable gliadin films without using crosslinking chemicals. The effects of concentrations of gliadin, urea and ethanol on the strength of the films and the stability of the films in water at high temperatures and various pH conditions has been studied. Gliadin films developed in this research have strength of about 30 MPa similar to the strength of previously reported gliadin films crosslinked with aldehydes and cysteine. Gliadin films obtained in this research were stable in pH 7.2 water at 50 °C for 20 days. The gliadin films did not dissolve in 70% ethanol which readily dissolves gliadin powder.

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Acknowledgements

This research was partially supported with funds from Nebraska Wheat Board, The Consortium for Plant Biotechnology Research, Inc by DOE prime agreement No. DE-FG36-02G012026, Archer Daniel Midland Company, USDA Hatch Act, the Agricultural Research Division at the University of Nebraska-Lincoln and by Multi State Research Project S-1026. The financial sponsors do not endorse the views expressed in this publication.

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Authors and Affiliations

  1. Department of Textiles, Clothing and Design, University of Nebraska-Lincoln, Lincoln, NE, 68583-0802, USA

    Narendra Reddy & Yiqi Yang

  2. Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68583-0802, USA

    Yiqi Yang

  3. Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, 234, HECO Building, East Campus, Lincoln, NE, 68583-0802, USA

    Yiqi Yang

Authors
  1. Narendra Reddy
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  2. Yiqi Yang
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Correspondence to Yiqi Yang.

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Reddy, N., Yang, Y. Developing Water Stable Gliadin Films Without Using Crosslinking Agents. J Polym Environ 18, 277–283 (2010). https://doi.org/10.1007/s10924-010-0193-0

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  • DOI: https://doi.org/10.1007/s10924-010-0193-0

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