As an example, representative volume-weighted distributions in SDS (A) and in water (B) are reported for mix (Fig. 1) and ice cream (Fig. 2) samples with 8% fat content, but similar behaviours were also found for the systems with 5% fat content. In the mixes (Fig. 1) the fat globule distribution changed with the dispersing medium used. In fact, it can be noted that the particle size distribution in SDS of the UNH sample was characterised by a bimodal distribution with a main group of particles at about 1000 nm and a second group at about 200 nm. On the other hand, monomodal distributions were observed in the CH and HPH samples. Similar behaviour in SDS were also observed and discussed in a previous paper (Innocente et al., 2009). In the UNH samples the main group was attributed to the fat globules derived from milk and milk cream, and the second group to casein micelles. The latter was suggested to disappear in the CH and HPH mix samples as a result of disaggregation by the homogenisation treatment and/or of adsorption to the newly formed fat globule membrane (Innocente et al., 2009). Moreover, all the mixes (UNH, CH and HPH) showed monomodal distributions when diluted in water and a shift of the peak towards higher diameter values with respect to the corresponding samples dispersed in SDS.