بررسي تغييرات هيستامين و بار باكتريايي در ماهي هامور معمولي Epinephelus coioides نگهداري شده در يخ

A study on histamine and bacterial changes in orange-spotted grouper, Epinephelus coioides during ice storage

In this study changes in histamine, mesophilic and psychrophilic bacteria as quality control indices in orange-spotted groper, Epinephelus coioides during ice storage were investigated. Histamine as chemical quality indices at first day was not detected, however histamine initially increased during storage period, but since 15th day, it showed significant decrease, that was going on until the end of the period. There was a significant difference between histamine concentration at first and last day of storage (P < 0.05). Mesophilic and psychrophilic bacteria were increased during storage, whereas mesophilic bacteria count decreased at day 15 of storage. Microbiologcal indices at first and last day of storage showed significant difference (P < 0.05). At end of the storage days psychrophilic bacteria count reached above 7/72 log cfu/g. These value showed that fishes become inconsumable for human at day 18th when total psychrophilic bacterial count reached above the limit determined by ICMSF.