High sugar/polysaccharide glasses: resolving the role of water molecules in structure formation

Int J Biol Macromol. 2002 Oct 1;30(5):279-82. doi: 10.1016/s0141-8130(02)00034-x.

Abstract

Small-deformation dynamic oscillation and differential scanning calorimetry were used to ascertain the role of water molecules in high sugar/polysaccharide glasses. Increasing replacement of water with sugar affects adversely tahe degree of order in the polysaccharide network to such an extent that at level of solids >90% structure formation is no longer possible. Depending of the polymeric ability to form a network, the rheological T(g) can be up to 30 degrees higher than the calorimetric T(g).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calorimetry, Differential Scanning
  • Carbohydrate Conformation
  • Carbohydrates / chemistry*
  • Glass
  • Polysaccharides / chemistry*
  • Thermodynamics
  • Water*

Substances

  • Carbohydrates
  • Polysaccharides
  • Water