진도 의신 해역의 해수 및 전복(Haliotis discus hannai)에 대한 세균학적 위생 안전성 평가
Assessment of Bacteriological Sanitary Safety of the Seawater and Abalone Haliotis discus hannai, in the Jindo Uisin Area, Korea
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초록
This study evaluated the bacteriological safety of seawater and abalone produced in Uisin-myeon, Jindo-gun from September 2020 to December 2022 and calculated the effect of inland pollution sources on seawater and abalone. We surveyed 33 stations for seawater, 4 stations for abalone, and 7 stations for discharge water of major inland pollutants. We analyzed the coliform group, fecal coliform and Escherichia coli (E. coli) as bacteria indicators. In 924 seawater samples, the geometric mean of the coliform group and fecal coliform were <1.8–5.6 MPN/100 mL and <1.8–2.7 MPN/100 mL, respectively. The estimated 90th percentile range for the coliform group and fecal coliform were <1.8– 42 MPN/100 mL and <1.8–8.4 MPN/100 mL, respectively. The fecal coliform and E. coli levels for 107 abalone were <18–460 MPN/100 g and <18–78 MPN/100 g respectively. Moreover, the analyzed standard plate count was <30–7,700 CFU/g. The fecal coliform level and diffusion area in 7 inland pollutants were <1.8–3,300,000 MPN/100 mL and 2–2,500 m, respectively. The bacteriological safety of seawater and abalone in Uisin-myeon, Jindo-gun, was demonstrated to be a designated area according to Korean standards, a conditionally approved area per US standards, and Class A according to EU standards.
Abstract
This study evaluated the bacteriological safety of seawater and abalone produced in Uisin-myeon, Jindo-gun from September 2020 to December 2022 and calculated the effect of inland pollution sources on seawater and abalone. We surveyed 33 stations for seawater, 4 stations for abalone, and 7 stations for discharge water of major inland pollutants. We analyzed the coliform group, fecal coliform and Escherichia coli (E. coli) as bacteria indicators. In 924 seawater samples, the geometric mean of the coliform group and fecal coliform were <1.8–5.6 MPN/100 mL and <1.8–2.7 MPN/100 mL, respectively. The estimated 90th percentile range for the coliform group and fecal coliform were <1.8– 42 MPN/100 mL and <1.8–8.4 MPN/100 mL, respectively. The fecal coliform and E. coli levels for 107 abalone were <18–460 MPN/100 g and <18–78 MPN/100 g respectively. Moreover, the analyzed standard plate count was <30–7,700 CFU/g. The fecal coliform level and diffusion area in 7 inland pollutants were <1.8–3,300,000 MPN/100 mL and 2–2,500 m, respectively. The bacteriological safety of seawater and abalone in Uisin-myeon, Jindo-gun, was demonstrated to be a designated area according to Korean standards, a conditionally approved area per US standards, and Class A according to EU standards.
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