From a technological viewpoint, hydrating properties constitute a grou
p of major importance among the functional properties. Hydrating prope
rties depend, essentially, upon water-protein interaction and are also
affected by such factors as the nature of the protein or the physico-
chemical conditions of the medium. This article examines the basic cha
racteristics of solubility, viscosity and water holding capacity, all
of which are very important hydrating properties for technological fis
h transformation processes.