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The importance of the glass transition to the temperature dependence of the stability of frozen foods.

Author(s) : REID D. S., HSU J., JU J.

Summary

To demonstrate the applicability of the "glass dynamic" concepts of Levine and Slade to reaction rates in frozen systems, the authors have performed a series of kinetic evaluations in model frozen food systems. The results demonstrate that the temperature at which there is a significant increase in molecular mobility correlates well with the temperature dependence of reaction rates. The rates correlate with the difference between the temperature of storage (the reaction temperature) and the measured "mobility temperature". In systems of similar composition, but with different glass transition temperatures, the reaction rate changes according to the change in temperature difference.

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Pages: 331-338

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Details

  • Original title: The importance of the glass transition to the temperature dependence of the stability of frozen foods.
  • Record ID : 1996-0965
  • Languages: English
  • Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
  • Publication date: 1995/08/20
  • Document available for consultation in the library of the IIR headquarters only.

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