Changes in proximate composition
Changes in proximate composition of Indian mackerel upon
freezing and during subsequent frozen storage are given in Table 1.
The proximate composition did not show any significant differences
(P < 0.05) in both the freezing methods. However, moisture
and protein contents showed a decreasing trend. The decrease in
the moisture content could be attributed to the dehydration and
thaw drip, whereas the decrease in protein could be due to the loss
of soluble protein in thaw drip. Upon freezing fat decreased in both
the methods and during the subsequent storage period, it showed
an increasing trend, which could be attributed to the changes in
moisture content.