Confocal laser microscopy was used to observe the microstructure
of formulated beverages. Fig. 8 shows the gross
morphology of the HPH treated formulations. Overall, all samples
showed a porous and heterogeneous microstructure, comprising of
dense aggregates of protein particles dispersed in a continuous
phase. Individual fat emulsions could not be observed in the
confocal analysis (Fig. 8) due to the presence of a highly dense
protein network. No differences in the microstructure and
morphology was observed between the different samples. During
HPH treatment, thermal and mechanical effects (shearing, turbulence
and cavitation) may disrupt the network, making it difficult to
detect with the adopted confocal methodology.