plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111elSSN : 2287-8815
Evaluation of Microbiological Safety and Artificial Depuration Systemfor Shellfish in the West Coast, Korea
김지윤·정연겸1·황진익·김영주·박보미2·오은경*
국립수산과학원 서해수산연구소, 1국립수산과학원 남해수산연구소, 2bioMérieux Korea Co., Ltd.
In this study, the hygiene indicator bacteria and pathogenic bacteria in shellfish (oysters and short-neck clams) produced on the West Coast were analyzed. In addition, this study aimed to secure the microbiological safety of distributed shellfish by reducing the number of microorganisms in the shellfish using an artificial relaying depuration system. Fecal coliforms and Escherichia coli of the shellfish examined ranged from <18 to 1,300 MPN/100 g and <18 to 700 MPN/100 g, respectively, with total aerobic bacteria ranging from <30 to 36,000 CFU/g. For Vibrio parahaemolyticus, <30 to 11,000 MPN/100 g was detected. V. vulnificus ranged from <30 to 230 MPN/100 g and V. cholerae ranged from <30 to 11,000 MPN/100 g. Salmonella spp. and Shigella spp. were not detected in this investigation. In the reduction study using the artificial relaying depuration system, E. coli of oysters decreased by more than 99% after 24 h of purification, and E. coli of short-neck clams decreased by more than 99.9% after 24 h. This study is expected to ensure the hygienic safety of shellfish and provide basic data for the research and development of microbial reduction technologies.
Depuration system, Microbiological safety, Oyster, Shellfish, Short-neck clam