C. Kiesner et al., MULTISTAGE PRESSURE REDUCTION DURING HOMO GENIZATION OF CREAM, Kieler Milchwirtschaftliche Forschungsberichte, 49(3), 1997, pp. 197-206
Multistage pressure reduction (three-or two stages) leads to a marked
decrease in viscosity of the homogenized cream compared with one-stage
pressure reduction. In this connection larger fat globule diameters o
f d(43) have, however, to be accepted when applying total pressures of
less than 200 bar. With cream containing 10% fat higher total pressur
es along with multistage pressure reduction allow the fat globule diam
eter to be kept at the same level and even to reduce it markedly in th
e case of cream with 20%. Thus, application of multistage pressure red
uction has an advantage over one-stage reduction. In particular as reg
ards cream with 20% application of three-stage pressure reduction offe
rs further advantages over two-stage pressure reduction which is alrea
dy frequently used in practice. Here, the pressure reduction combinati
on 250/150/50 bar has proven to be the best by far.