3.2. Microbial analysis
Changes of total mesophilic (TMC) and total psychrotrophic
bacteria (TPC) during refrigerated storage are shown in Figs. 2 and
3. The initial TMC and TPC in the fish flesh ranged from 3.36 ± 0.13
to 3.61 ± 0.31 and 3.27 ± 0.14 to 3.56 ± 0.21 log10 cfu/g, respectively.
Values of TMC and TPC increased gradually within each treatment
lot during the storage period. At the end of the storage period (day
12), the groups treated with Ch and Nch had significantly lower
(P < 0.05) TMC and TPC than the uncoated control (lot C) and the