| Popis: |
The kinetics of the hydrolysis of 1,2-rac-dicaprin monomolecular films were measured from the decrease in the film area and the simultaneous changes in the surface potential at a constant surface pressure. A new kinetic model, based on the rate of product desorption is described. The surface potential data were interpreted in the light of the hydrolytic products accumulated at the interface. The surface concentration of the lipolytic products transiently present at the interface and the characteristic solubilization time of the lipolytic products were estimated. At surface pressures of more than 10 mN m−1, the amount of lipolytic products accumulated at the interface was found to be negligible in line with the simple kinetic model first developed in 1973 by R. Verger et al. (R. Verger, M.C.E. Mieras, G.H. de Haas, J. Biol. Chem., 248 (1973) 4023). |
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