海水電解装置による漁港内海水の殺菌と漁獲物の衛生管理への応用

• Main Authors: 笠井, 久会, 吉水, 守
• Format: Journal Article
• Language: Japanese
• Published: 日本水産学会 = The Japanese Society of Scientific Fisheries 15.11.2003
• Subjects: 生菌数; 衛生管理; 電気分解; 電解水

Seawater in a fishing port was electrolyzed to induce hypochlorite up to approximately 1 mg/L for the reduction of viable bacterial count because disinfection of seawater is important for the prevention and control of hazards in seafoods. The number of viable bacteria in a fish holding tank was lowered from 10^4-10^5 mg/L to 10^0-10^1 mg/L after electrolization of seawater and the low level of viable bacterial count was kept for at least 3 hours. The reduction rate of chlorine concentration of the electrolyzed seawater in the fish holding tank was reduced by the addition of ice and by covering with a thermal insulating sheet. However, the chlorine concentration decreased when fish were put into the fish holding tank. In a fisher-boat tank, viable bacterial count remained less than 100 CFU/mL for at least 60 minutes when ice was present. It was also shown that electrolyzed seawater was useful for disinfection of deck or fishing equipment.