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Reducing temperature variability through vertically ventilated pallet systems: kiwifruit as a case study.

Author(s) : TANNER D. J., SMALE N. J., AMOS N. D.

Summary

Packaging design plays an important role in regulating the rates of cooling and preventing weight loss during storage and transport of horticultural produce. Respiratory heat can create problems in these systems, causing the cartons in the centre of a pallet to be significantly warmer than those on the outside of the pallet. This temperature variability can cause variable quality at out-turn and can lead to difficulties in the market. A traditional approach to this problem has been the design of cartons with direct ventilation through cartons, but unfortunately these vents can contribute to loss of package strength, and the high airflow rates used in marine transport systems can contribute to product dehydration and quality issues such as shrivel. Packaging systems integrating vertical channels offer an alternative method of increasing cooling rates (through more rapid respiratory heat removal) and reducing temperature variability during transport without dehydrating the produce. This concept relies on forming vertical channels between packages in a pallet; thereby allowing refrigerated air better access to the central regions of the pallet. Testing of three packaging systems integrating the vertical channel concept will be presented in this investigation: both single pallet assessments and full-scale simulated shipments with 20 pallets of kiwifruit loaded in a 40' refrigerated container.

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Pages: ICR07-D2-234

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Details

  • Original title: Reducing temperature variability through vertically ventilated pallet systems: kiwifruit as a case study.
  • Record ID : 2008-0921
  • Languages: English
  • Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Publication date: 2007/08/21

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