Predicting Gas Concentrations of Welsh Onion in Polymeric Film Packaging and Shipping Containers

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A theoretical model of the atmosphere within polymeric film and shipping containers was developed and validated by experiments with or without Welsh onion (<i>Allium fistulosum L.</i>). There were three processes in the model: respiration of fresh vegetables, permeability of gas in polymeric film and permeability of gas in the shipping container. The respiration rate of Welsh onion was expressed in a multiple regression equation. When empty packages were used, changes in carbon dioxide (CO<sub>2</sub>) and oxygen (O<sub>2</sub>) concentrations inside the unperforated polypropylene (OPP) film packaging and expanded polystyrene (EPS) containers agreed very well with the simulated data. These results indicate the suitability of the proposed model. Changes in CO<sub>2</sub> and O<sub>2</sub> concentrations in the EPS container were approximated when Welsh onion was placed in the film package. The predicted CO<sub>2</sub> and O<sub>2</sub> concentrations in the OPP film differed slightly from the experimental data obtained with a maximum of 1.5% and 1.2%, respectively, but gas correlated significantly with the model. Therefore, the simulation model may be useful for fresh vegetables wrapped with polymeric film and then encased in shipping containers.<br>

収録刊行物

  • Food science and technology research

    Food science and technology research 6(4), 340-343, 2000-11-01

    公益社団法人 日本食品科学工学会

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各種コード

  • NII論文ID(NAID)
    10013009091
  • NII書誌ID(NCID)
    AA11320122
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13446606
  • データ提供元
    CJP書誌  J-STAGE 
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