Abstract
A dielectric study, using time domain spectroscopy, of model water-in-triglyceride emulsions with and without added NACl in the frequency interval 10 MHz to 10 GHz is reported. It is shown that the static permittivities can be explained from a model permitting a slight flocculation of the aqueous droplets. The relaxation times were interpreted by means of a Maxwell—Wagner—Sillars mechanism which was verified by the salinity dependence. The experimental findings in the model systems were also reproduced in samples of real liquid margarines.
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