Modelling the growth of Pseudomonas fluorescens as a function of temperature and carbon dioxide.

Summary

Pseudomonas fluorescens was chosen as an indicator microorganism for spoilage of ready-to-eat or Grade IV leafy vegetables. The effect of the extrinsic storage conditions (temperature and carbon dioxide concentration) upon the growth in a model system were studied. The bacterial growth curve was described with the Logistic and Gompertz equation. In a temperature range of 4 to 12 deg C the lag time of P. fluorescens showed an exponential dependence with temperature, whereas a linear relationship of the maximum absolute growth rate with temperature was observed. Relations of concentration of CO2 and Pseudomonas growth are described.

Details

  • Original title: Modelling the growth of Pseudomonas fluorescens as a function of temperature and carbon dioxide.
  • Record ID : 1996-2914
  • Languages: English
  • Source: The post-harvest treatment of fruit and vegetables. Modified atmosphere packaging. Proceedings COST 94.
  • Publication date: 1992/10/01
  • Document available for consultation in the library of the IIR headquarters only.

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