Effect of superchilling in slurry ice on the preservation of farmed large yellow croaker(Pseudosciaena crocea)

The use of slurry ice as a new prechilling and preservation method for farmed Pseudosciaena crocea was evaluated. The results showed that the time of chilling large yellow croaker to 0 ℃ was only 45 min,half of flack ice,and the terminal temperature was-1 ℃,which was in the ice temperature state. Compared with flack ice,large yellow croaker in slurry ice significantly(p <0.05) slowed down the biochemical(TVB-N,TMA-N,K-value) and microbiological(as estimated by aerobic plate count) degradationt,the storage time of slurry ice was extended for 6 days. Although progressive increase of the Na Cl content in fish muscle with storage time(reached 0.87% in the end),it had little deleterious effect on sensory analyses. Thus,the application of slurry ice was a rapid and efficient method for chilling and storage of large yellow croaker.