Bound Water in Starch Hydrogels with High Dispersed Silica

Authors

  • V. V. Turov
  • A. A. Novza
  • R. Leboda
  • J. Skubisewska-Zieba
  • M. Szesniak
  • K. V. Turov

Keywords:

starch, silica, interfacial water, 1H NMR spectroscopy

Abstract

Gel-like colloid starch solutions and the effect of high dispersed silica on their phase state were studied using the method ofliquid phase layered freezing-out with 1H NMR recording of unfrozen water signal. Interphase energy of “biopolymer-water†system was established to increase from 65 to 194 J/g during starch gel dilution. Silica greatly affects the phase state of starch gel. Secondary structure of amylopectin chains is disintegrated in its presence and the stable “starch-silica†complexes are formed. Concentration of bound water in such complexes is lower than in starch gels and greatly depends on starch-silica concentration ratio. Interphasewater energy in “starch-water-silica†systems makes 21-103 J/g.

Author Biographies

V. V. Turov

Institute of Surface Chemistry of the National Academy of Sciences of Ukraine, Kiev

A. A. Novza

Institute of Surface Chemistry of the National Academy of Sciences of Ukraine, Kiev

R. Leboda

Marie Sklodowska-Curie University, Lublin, Poland

J. Skubisewska-Zieba

Marie Sklodowska-Curie University, Lublin, Poland

M. Szesniak

Marie Sklodowska-Curie University, Lublin, Poland

K. V. Turov

Institute of Surface Chemistry of the National Academy of Sciences of Ukraine, Kiev

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Published

2005-12-25

How to Cite

Turov, V. V., Novza, A. A., Leboda, R., Skubisewska-Zieba, J., Szesniak, M., & Turov, K. V. (2005). Bound Water in Starch Hydrogels with High Dispersed Silica. Problems of Cryobiology and Cryomedicine, 15(3), 636–644. Retrieved from https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1213

Issue

Vol. 15 No. 3 (2005): Problems of Cryobiology

Section

Theoretical and Experimental Cryobiology

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