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A probabilistic model for microbial growth during cold storage of foods.

Author(s) : NICOLAI B. M., IMPE J. F. van, MARTENS T., BAERDEMAEKER J. de

Summary

A probabilistic dynamic model is described for microbial growth during cold storage of foods. The physiological state of the micro-organism is modelled as a random variable. The mean model parameters are estimated from a collection of growth and inactivation curves of the organism Brochothrix thermosphacta in constant temperature conditions. The covariance matrix of the model parameters was estimated using the Monte Carlo method. The model is validated based on an independent set of growth-inactivation curves in dynamically changing temperature conditions. It is shown that the confidence bands of the predicted growth and inactivation curves can be very large.

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Pages: 232-239

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Details

  • Original title: A probabilistic model for microbial growth during cold storage of foods.
  • Record ID : 1996-0925
  • 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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