Despite being vacuum
wrapped in plastic bags, along with storage time prolongation, both
kinds of samples dried out. The percentage of dry matter increased,
which generallywas reflected by a decrease inwater activity values.
Although the sonicated and control samples had different initial
values of both dry matter content and water activity, these
parameter changes occurred in a very similar way (Table 4),
resulting in samples obtained by osmotic dehydration with US
application having lower final moisture content than samples
pretreated without US.