Dispersions are obtained using the following procedure. Batches
of 20 L are prepared in a cylindrical mixing vessel Powders of WPI and xanthan are dispersed in water,
at a controlled temperature (40 C) and at pH 7, by the addition of
0.1 M NaOH solution, for better protein solubilization . Stirring is carried
out at low speed (50 rpm) to prevent formation of foam, during five
hours, and then the batches are kept at 4 C to ensure complete
hydration of the polymers