Properties of β-Glucan Films from Intact and Disintegrated Saccharomyces cerevisiae Cells

Authors

  • Miroslav Novák Department of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague
  • Andriy Synytsya Department of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague
  • Gordon K. Gomba Department of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague
  • Anna Hejlová Department of Mathematics, Czech University of Life Sciences, Prague
  • Jiří Blahovec Department of Physics, Czech University of Life Sciences, Prague
  • Ondřej Gedeon Department of Glass and Ceramics, Institute of Chemical Technology, Prague
  • Petr Slepička Department of Solid State Engineering, Institute of Chemical Technology, Prague
  • Jaroslav Maixner Central Laboratories, Institute of Chemical Technology, Prague
  • Jana Čopíková Department of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague

Keywords:

β-glucan, yeast Saccharomyces cerevisiae, films, structure, mechanical properties

Abstract

Insoluble polysaccharide fractions containing β-glucans as the main component were isolated from intact and disintegrated cells of yeast Saccharomyces cerevisiae. Films prepared from both these crude glucans as well as raw materials themselves were analysed by FTIR spectroscopy and structure, thermal and mechanical properties of the films were investigated using SEM, AFM, XRD, XRF, DSC and tensile tests. β-Glucan preparations from disintegrated cells had less amount of α-glucans than those obtained from intact cells. Films originated from disintegrated cells were more homogeneous, while crystallinity was more pronounced at films from intact cells. Glass transition of the both types of films underwent at the same temperature. Films from disintegrated cells were less thermo stable, stronger and less elastic than those prepared from intact cells.

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Published

2011-12-15

How to Cite

Novák, M., Synytsya, A., Gomba, G. K., Hejlová, A., Blahovec, J., Gedeon, O., Slepička, P., Maixner, J., & Čopíková, J. (2011). Properties of β-Glucan Films from Intact and Disintegrated Saccharomyces cerevisiae Cells. Chemické Listy, 105(12), 955–960. Retrieved from http://ww-w.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/1065

Issue

Vol. 105 No. 12 (2011)

Section

Articles

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