Journal of Food Hygiene and Safety (한국식품위생안전성학회지)

The Korean Society of Food Hygiene and Safety (한국식품위생안전성학회)
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Trace Metal Contents in Cultured and Wild fishes from the Coastal Area of Tongyeoung, Korea and their Safely Evaluations

통영연근해역 양식산 및 자연산 어류 중의 미량금속 함량 및 안전성 평가

  • Choi Jong-Duck (Division of Marine Bioscience/Institute of Marine Industry Gyeongsang national University) ;
  • Jeoung In-geon (Division of Marine Bioscience/Institute of Marine Industry Gyeongsang national University)
  • 최종덕 (경상대학교 해양생물이용학부/해양산업연구소) ;
  • 정인권 (경상대학교 해양생물이용학부/해양산업연구소)
  • Published : 2005.12.01
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Abstract

The content of the trace metals in the cultured and wild fishes were determined. The tested fishes were genuin porgy (Pagrus major) and black porgy (Acanthopogrus schlegeli). The samples of the cultured and wild fishes were collected from slices of raw fish in shops, during 2003 to 2004. The samples were digested with acids, then analyzed by ICP (inductively Coupled plasma Spectrometer) and AAS (Automic Absorption Spectrometer) for the content of lead (Pb), cadmium (Cd), arsenic (As), copper (Cu), manganese (Mn) and zinc (Zn). The content of mercury (Hg) was determined using mercury analyzer. The mean contents of trace metals in cultured and wild fish was 0.031,0.047mg/kg far total-mercury,0.321,0.407 for Pb, 0.048,0.063 for Cd, 1.006, 1.132 for As, 0.467,0.806 for Cu, 0.233, 0.293 for Cr, 9.69, 12.20 for Zn,0.798, 0.624 mg/kg far Mn, respectively. The content of all the trace metals except manganese in wild fish was more than that in cultured fish. The highest level of total-mercury, lead, cadmium, zinc, chromium and arsenic in the samples analyzed were all below the quarantine limit of Korean regulation and guideline established by the U.S. Food and Drug Administration f3r human consumption. The level of the trace metals in the samples was negligible, which could be endogenous. Our data obtained in this study showed that the average weekly intakes of lead, cadmium and mercury from cultured and wild fishes takes about $6\∼13\%$ of Un(Provisional Tolerance Weekley Intakes) that FAO/WHO Joint Food Additive and Contaminants Committee has set to evaluate their safeties.

2003년 3월부터 2004변 2월까지 통영 인근 연안에 서식하고 있는 양식산 및 자연산 어류의 부위별 미량금속의 함량을 분석하였다. 수은은 Cold-amalgam법에 의하여 직접 측정하없고,납,카드뮴,비소,구리,크롬, 아연, 망간 등은 습식분해 후 ICP 및 AAS로 분석하였다. 미량금속별로는 수은이 양식산에서 0.031, 자연산이 0.047,납은 0.321, 0.407, 카드뮴은 0.048, 0.063, 비소는 1.006, 1.132, 구리는 0.467, 0.506, 크롬은 0.233, 0.293, 아연은 9.69, 12.20, 망간은 0.798, 0.624 mg/kg으로 각각 분석되었다. 대부분의 미량금속은 망간을 제외하고 자연산이 높은 값을 나타내고 있었다. 부위별로는 수은, 납, 카드뮴, 구리 및 아연 등은 비장에서 높은 함량을 보였고, 비소는 쓸개와 간에서, 크롬은 껍질에서, 망간은 비장과 간에서 높은 함량을 나타내었다. 통영연근해 어류 중의 미량금속 함량은 우리나라의 중금속 허용기준치 및 미국의 중금속 권고치를 초과하지 않았으며 자연함유량 수준인 것으로 판단되었다. 또한 우리나라 국민이 어류를 통하여 섭취하는 납, 수은, 카드뮴 등의 미량금속 주간 섭취량이 FAO/WHO에서 미량 금속 안전성 평가를 위하여 제시한 PTWI $6.0\∼13.0\%$로 조사되었다.

Keywords

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