Results of the present study showed that both chitosan and
nanochitosan coating were effective for the preservation of silver
carp fillets during refrigerated storage. However, nanochitosan
exhibited higher antimicrobial activity than chitosan during the
storage period. This could be due to the nanoparticle's larger surface
area and higher affinity with bacteria cells. Furthermore,
nanochitosan showed a stronger ability to inhibit the TVB-N content
than chitosan. Therefore, to extend the shelf life and delay the
deterioration of fresh silver carp fillets during refrigerated storage,
nanochitosan coating is more appropriate.