Moisture sorption in mixtures of biopolymer, disaccharides and water

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The moisture sorption of ternary mixtures of biopolymer, sugar and water is investigated by means of the Free-Volume-Flory-Huggins (FVFH) theory. The earlier FVFH theory developed for binary mixtures of biopolymer/water and sugar/water has to be modified to account for two effects: 1) the change in the glass temperature due to the non-ideal mixing of biopolymer and 2) inhibition of self-association of the polymer if the mixture is quenched very fast into the glassy state. The modified FVFH theory forms a good basis for predicting moisture sorption for quaternary mixtures of biopolymers, di-, mono-saccharides and water - which can be viewed as a model for vegetables and fruits. (c) 2013 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)186-194
JournalFood Hydrocolloids
Issue number1
Publication statusPublished - 2013


  • glass-transition temperature
  • frozen state transitions
  • vapor sorption
  • poly(ethylene glycol)
  • amorphous mixtures
  • sucrose
  • behavior
  • prediction
  • polymers
  • crystallization

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