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Respiration rate model and modified atmosphere packaging of fresh cauliflower.

Author(s) : RATTI C., RAGHAVAN G. S. V., GARIEPY Y.

Type of article: Article

Summary

In the first part, the respiraton rate of fresh cauliflower was measured in sealed containers at different temperatures. An enzymatic reaction was then used to model the respiration activity as a function of gas concentrations and temperature. An Arhenius relationship was used in the model to account for the effects of temperature. Predictions derived from the model were in good agreement with the experimental data. In the second part, the ability of air-diffusion channels to maintain the desired modified atmosphere compositions (O2: 2.5-3.5%; CO2: 0%) in storage chambers was assessed. Fresh cauliflowers were stored at 2.5 deg C for 21 days in laboratory chambers equipped with channels of 0, 0.3, 0.6 and 1 m in length, and for 33 days in chambers equipped with 0, 0.05, 0.15 and 0.25 m diffusion channels. The results have indicated that diffusion channels can be used to maintain modified atmosphere conditions and that they could accomodate for some fluctuations in the air temperature.

Details

  • Original title: Respiration rate model and modified atmosphere packaging of fresh cauliflower.
  • Record ID : 1997-1591
  • Languages: English
  • Source: J. Food Eng. - vol. 28 - n. 3-4
  • Publication date: 1996/05
  • Document available for consultation in the library of the IIR headquarters only.

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