Abstract:

In order to establish a kinetic model for the quality change of large yellow croaker at variable temperatures which
permits accurate prediction of the shelf life in real cold chain, this study examined the change in total volatile base nitrogen
(TVB-N) at 0, 5, 10 and 20 ℃ and built a kinetic model describing the influence of temperature on changes in TVB-N. The
fitted kinetic model had a coefficient of determination (R2) of 0.984, bias factor (Bf) of 0.968, accuracy factor (Af) of 1.123,
and mean squared error (MSE) of 0.141. The model proved to predict accurately the shelf life of large yellow croaker during
processing and storage. Therefore it could provide a basis for cold-chain logistics improvement and implementation of
aquatic product traceability of large yellow croaker.

Key words: large yellow croaker, variable temperature, TVB-N, kinetic model, evaluation