Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Heavy Metal Contents of Canned Seafoods Packed in Oil

수산물 기름 담금 통조림 식품의 중금속 함량

  • Heu, Min-Soo (Division of Marine Biosciene/Institute of Marine Industry, Gyeongsang National University) ;
  • Kim, Jin-Soo (Division of Marine Biosciene/Institute of Marine Industry, Gyeongsang National University)
  • 허민수 (경상대학교 해양생물이용학부/해양산업연구소) ;
  • 김진수 (경상대학교 해양생물이용학부/해양산업연구소)
  • Published : 2004.09.30
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Abstract

Specification and heavy metal contents of canned seafoods packed in oil were investigated. 30 species of canned tuna were classified by 4 groups as follow; group (sample codes, 1-10) composed of tuna and oil only, group (11-18) composed of tuna, vegetable and oil, group (19-27) composed of tuna, sauce and oil, and group (28-30) composed of tuna, vegetable, sauce and oil. Commercial canned shellfish packed in oil were mainly produced from sea mussel (sample codes, 31 and 32) and oyster (33-35). Can bodies of canned tuna were made by tin-plate, and used c-enamel or aluminium-paste as coating materials. In pH values of canned tuna, sample codes 1-10 (pH 5.55-5.69) and 19-27 (pH 5.17-5.85) were higher than sample codes 11-18 (pH 4.95-5.43) and 28-30 (pH 5.20-5.38). There was no difference in salinity (1.3-1.9%) and vacuum degree (15-18 mmHg) among canned samples. Heavy metal contents of canned seafoods ranged from 1.04-9.03 ppm for Sn, and 0.17-0.68 ppm for Pb. Those values are below the permitted range (less than 150 ppm for Sn and 2 ppm for Pb).

수산물 기름담금 통조림의 중금속 오염 영향 요인과 중금속 함량에 대하여 살펴보았다. 중금속 함량에 영향을 미칠 수 있는 요인 중의 하나인 내용물의 성상에 따라 참치 기름 담금 통조림을 분류하는 경우 크게 참치와 유지로 이루어진 그룹(sample codes: 1-10), 참치, 유지 및 야채로 이루어진 그룹(11-18), 참치, 소스 및 유지로 이루어진 그룹(19-27) 및 참치, 야채, 유지 및 소스로 이루어져 있는 그룹 (28-30)과 같이 4그룹으로 분류되었다. 또한 패류 통조림의 경우 굴과 유지로 이루어진 굴통조림과 홍합과 유지로 이루어진 홍합통조림과 같이 2그룹으로 분류되었다. 참치통조림의 관동은 주로 양철관을 사용하였고, 내면도료로 c-enamel 또는 알루미늄 paste를 사용하였다. 중금속 용출에 영향을 미치는 pH의 경우 참치 통조림은 sample codes 1-10 시료(pH 5.55-5.69)와 19-27 시료(pH 5.17-5.85)가 sample codes 11-18 시료(pH 4.95-5.43)와 28-30 시료(pH 5.20-5.38)에 비하여 높았다. 하지만 수산물 기름담금 통조림간에는 염도(1.3-1.9%)와 진공도(15-18 mmHg)에 있어 차이가 없었다. 수산물 기름담금 통조림의 중금속 함량은 주석의 경우 1.04-9.03 ppm 범위, 납의 경우 0.17-0.68 ppm 범위이었고, 이들은 식품위생법규에서 규정한 한계치(주석: 150 ppm 이하, 납: 2 ppm 이하)이하 이었다.

Keywords

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