Whey protein concentrates WPC. 85% protein.
were obtained from EURIAL Tours, France.. WPC
were obtained by ultrafiltration of casein serum. The
composition of the product is: Nx 6.38: 85%; fat: 3%;
mineral salts: 4%; water content: 4%; pH 6.5"0.2.
The proteins are soluble on all the range of pH, and
are good emulsifier at pH-7. Sunflower oil was pur-
chased from LESIEUR France.. Distilled water was
filtered using 0.2-mm filters.