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The oxygen level in relation to oxygen supply and demand within modified atmosphere packages containing fresh plant produce.

Author(s) : PATTERSON B. D., FLODEN C., BOWER J. H.

Summary

In modified atmosphere packages, leafy salad vegetables can respire aerobically at partial pressures of oxygen somewhat less than 1 kilopascal, but anaerobic respiration is induced as oxygen pressures approach of 0.1 kilopascal. Providing low temperatures can be maintained, a partial pressure of 1 kilopascal is a useful lower limit for oxygen in modified atmosphere packages. Whether this is realized under practical conditions was investigated. Predicted values were less than 1 kilopascal, as were the measured values, which ranged from less than 0.1 to 0.3 kilopascal. The results are discussed and also how to achieve a target level of oxygen which is sufficiently low to delay senescence and yet not so low as to present a risk of anaerobic metabolism.

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Details

  • Original title: The oxygen level in relation to oxygen supply and demand within modified atmosphere packages containing fresh plant produce.
  • Record ID : 2000-1454
  • Languages: English
  • Source: 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
  • Publication date: 1999/09/19

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