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Pertes de masse de pêches pendant le transport.

La perdita di peso delle pesche durante il trasporto.

Auteurs : PANOZZO G., GHIOTTO V., MINOTTO G., et al.

Résumé

The authors summarise the basis of mass transfer, then review the results of experimental transport of a load of peaches in a small refrigerated truck. All peach boxes were placed directly on the truck floor. Some of them were covered with a polyethylene sheet, others were put into plastic bags with various gases (mainly nitrogen and carbon dioxide). The authors describe the experimental conditions and results. The behaviour was very different from one box to another. This can be partly explained by imperfections in the experimental procedures. The conclusions of this experiment cannot be generalised. The relatively low weight losses can be explained by the low air velocity which was particularly low in boxes covered with polyethylene. The peaches put in plastic bags did not lose less water than the others, because water condensed on the inside surface of the bags. Due to the low air velocity, the temperature of the peaches remained relatively high throughout this (short) transport. The authors conclude that fruit precooling (hydro-cooling, vacuum cooling or air blast) is absolutely necessary before transport.

Détails

  • Titre original : La perdita di peso delle pesche durante il trasporto.
  • Identifiant de la fiche : 2000-2636
  • Langues : Italien
  • Source : Le ultime tecnologie del freddo e del condizionamento./ Latest technologies in refrigeration and air conditioning.
  • Date d'édition : 18/06/1999
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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