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Temperature- and hydration-dependence of molecular mobility in seeds

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Abstract

Broad-band ac dielectric relaxation spectroscopy (DRS) and various techniques of thermally stimulated currents (TSC) have been used to investigate molecular mobility in cereal and legume seeds, over wide ranges of water content and temperature. We focused our interest on the detailed study of the interactions between water and seed constituents. The results are quantitatively discussed, using various concepts dictated by the experimental techniques employed and in relation to the protein and carbohydrate contents of the seeds. In addition, the glass transition in the seeds, freezing and melting of water, and the protonic conduction process have been studied in some detail.

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Authors and Affiliations

  1. Department of Physics, National Technical University of Athens, 157 80, Athens, Greece

    P. Pissis & A. A. Konsta

  2. Center for Multidisciplinary Studies, University of Belgrade, Belgrade, Yugoslavia

    S. Ratkovič & S. Todorovič

  3. Maize Research Institute “Zemun Polje”, 11080, Zemun-Bel grade, Yugoslavia

    S. Ratkovič

  4. Institute of Physics, Charles University, Ke Karlovu 5, 12116, Prague 2, Czech Republic

    J. Laudat

Authors
  1. P. Pissis
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  2. A. A. Konsta
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  3. S. Ratkovič
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  4. S. Todorovič
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  5. J. Laudat
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Additional information

Financial support through the Greek Ministry of Industry, Energy and Technology (Secretariat of Research and Technology), the Czech Ministry of Education, Youth and Sport (Dept. of International Scientific and Technological Cooperation), and the Empirikos Foundation is gratefully acknowledged.

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Pissis, P., Konsta, A.A., Ratkovič, S. et al. Temperature- and hydration-dependence of molecular mobility in seeds. Journal of Thermal Analysis 47, 1463–1483 (1996). https://doi.org/10.1007/BF01992840

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