Abstract: Contents of ATP and its related compound, changes in AEC value in adductor muscle, K value and pH value, and contents of protein, glycogen and triglyceride in soft tissue were determined in Pacific oyster Crassostreagigas, from sea harvest, and land transportation, with body weight of(102.3±5.1)g covered with a wet towel storage at 4 ℃ for 4 day (group D) and in the oyster treated above rewatering for 1 h each day (group D-W) to investigate the influence of the post-harvest handing on the storage stability of Pacific oyster. The results showed that the contents of glycogen and triglyceride were decrease from 25.6 mg/g to 17.3 mg/g in the post-harvest oyster cooling by refresh water and from 10.0 mg/g to 7.5 mg/g in the post-harvest oyster by air exposure storage (0-6 h). The ATP content was also shown to be decreased in the adductor muscle. The oyster transported to the laboratory and treated with the sea water was recovered to 24.2 mg/g in glycogen and to 10.9 mg/g in triglyceride during the air exposure storage (6-24 h), with gradual declines in these parameters in the 24 hour storaeg. The ATP content was recovered from the initial content of 0.76 nmol/g to 1.15 nmol/g, and the stable AEC value and no change in pH value in the muscle were observed in the oyster in group D-W. Therefore, the post-harvested cleaning and coverage of fresh water ice in the transportation have the great impact on the storage stability of the oyster, and the re-water (wet) treatment in the air exposure storage process is conducive to improving the storage stability of the live oyster.
2019, Vol. 34 
