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

• 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, K, as an index for the effectiveness of progressive freeze-concentration, is defined by the ratio of solute in ice and liquid phase. K 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, K₀, corresponds to K at the infinitesimal ice crystal growth rate and/or infinite mass transfer at the interface. K₀ is an important process parameter for progressive freeze-concentration. A method is proposed for determining K₀ experimentally for a tubular ice system. K0 increased with increase in the concentration of solute, which suggests that K₀ 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

  公益社団法人 日本食品科学工学会

キーワード

• progressive freeze concentration
• scale-up
• tubular ice system
• limiting partition coefficient

詳細情報

• CRID: 1390001204455618944
• NII論文ID: 10021185292
• NII書誌ID: AA11320122
• DOI: 10.3136/fstr.14.249
• ISSN: 18813984
• ISSN: 13446606
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可