Glass transition temperature of honey as a function of water content as determined by differential scanning calorimetry

J Agric Food Chem. 1999 Jun;47(6):2327-30. doi: 10.1021/jf981070g.

Abstract

The glass transition of pure and diluted honey and the glass transition of the maximally freeze-concentrated solution of honey were investigated by differential scanning calorimetry (DSC). The glass transition temperature, of the pure honey samples accepted as unadulterated varied between -42 and -51 degrees C. Dilution of honey to 90 wt % honey content resulted in a shift of the glass transition temperature by -13 to -20 degrees C. The concentration of the maximally freeze-concentrated honey solutions, as expressed in terms of honey content is approximately 102-103%, i.e., slightly more concentrated in sugars than honey itself. The application of DSC measurements of and in characterization of honey may be considered, but requires systematic study on a number of honeys.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calorimetry, Differential Scanning / methods
  • Freezing
  • Glass
  • Honey / analysis*
  • Solutions
  • Water / analysis*

Substances

  • Solutions
  • Water