“…The submicelle model was proposed by Slattery and Evard (1973), Schmidt and Payens (1976) and further developed by Schmidt (1980Schmidt ( , 1982 and Walstra (1990Walstra ( , 1999. The basic concept of the model is that the casein micelles consist of an aggregate of discrete spherical subunits (10-20 nm) called submicelles, contained in the interstitial liquid.…”