Limiting Partition Coefficient in a Tubular Ice System for Progressive Freeze-concentration

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著者

    • GU X.
    • Food Piezotechnology Laboratory, Food Engineering Division, National Food Research Institute
    • WATANABE M.
    • Department of Food Science and Technology, Tokyo University of Marine Science and Technology
    • SUZUKI T.
    • Department of Food Science and Technology, Tokyo University of Marine Science and Technology
    • MIYAWAKI O.
    • Department of Food Science, Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University

抄録

A tubular ice system is effective for the scale-up of progressive freeze-concentration. The effective partition coefficient, <I>K</I>, as an index for the effectiveness of progressive freeze-concentration, is defined by the ratio of solute in ice and liquid phase. <I>K</I> is dependent both on the ice crystal growth rate and the mass transfer coefficient at the ice-liquid interface, as described by the concentration polarization model. The limiting partition coefficient, <I>K<SUB>0</SUB></I>, corresponds to <I>K</I> at the infinitesimal ice crystal growth rate and/or infinite mass transfer at the interface. <I>K<SUB>0</SUB></I> is an important process parameter for progressive freeze-concentration. A method is proposed for determining <I>K<SUB>0</SUB></I> experimentally for a tubular ice system. K<I>0</I> increased with increase in the concentration of solute, which suggests that <I>K<SUB>0</SUB></I> is not determined by the equilibrium process but by the nonequilibrium process at the ice-liquid interface.

収録刊行物

  • Food science and technology research  

    Food science and technology research 14(3), 249-252, 2008-05-01 

    Japanese Society for Food Science and Technology

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各種コード

  • NII論文ID(NAID)
    10021185292
  • NII書誌ID(NCID)
    AA11320122
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    13446606
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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