The apparent diffusion coefficient and equilibrium distribution coefficient of sodium chloride in Chinese water chestnut were determined for salt solution concentrations between 5% and 10% and at temperatures in the range 25-80 degrees C. Equilibrium distribution coefficient values were close to 1.0 and did not depend on salt concentration or temperature. The apparent diffusion coefficient of salt in water chestnut is not dependent on the concentration of the salt solution and significantly increased with temperature (p = 0.001) following the Arrhenius equation. (C) 2007 Elsevier Ltd. All rights reserved.