Abstract:

The aerobic plate counts of mackerel meat during cold storage at fixed temperatures were enumerated and the
acquired data were used to establish a microbial growth kinetics model based on Baranyi model. The Baranyi model was
modified to develop a microbial growth kinetics model for cold storage at changing temperatures and the new model was
validated by simulation experiments with a bias factor of 1.23 and an accuracy factor of 1.12. These results showed that the
microbial growth kinetics model could fit the change of microbes in mackerel at fluctuating temperatures.

Key words: mackerel, growth kinetic model, fluctuating temperature