Abstract
A model for describing the rate of glucose diffusion through a dialysis membrane was developed. The diffusion coefficient of glucose in the dialysis membrane, D, was constant, regardless of the glucose concentration. The data on the diffusion rate of glucose both in the presence and absence of water-soluble dietary fibres were well described by the model, and the amounts of glucose adsorbed on different fibres were evaluated. The amount of adsorbed glucose increased linearly with an increase in the glucose concentration. A decrease in diffusion rate was caused by adsorption of glucose on water-soluble dietary fibre but not by viscosity. Since the rate of desorption of glucose from dietary fibres is slow enough, the amount of glucose adsorbed is considered to be kept almost constant during the dialysis experiment.
Published Version
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