Dispersions are obtained using the following procedure. Batches
of 20 L are prepared in a cylindrical mixing vessel (Guedu, Lavergne,
France). 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 (Guimarães
Pelegrine and De Moraes Santos Gomes, 2008). 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