The present work evaluated the effect of high pressure homogenization
(HPH) on the rheological properties of a fruit juice serum
model. The serum model was chosen and designed to be similar to
tomato serum, and showed Newtonian behaviour. Product viscosity
decreased with increasing homogenization pressure, and could
be modelled well using two different functions (exponential and
sigmoidal). Based on the results obtained, the expected behaviour
of the fruit juice was discussed. The results obtained are potentially
useful for future studies on product and process development