Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Evaluation of the Chemical Compositions of Solar Salts Produced in Korea

국내 시판 천일염의 성분 조사

  • Seo, Ji-Hyun (The Center for Traditional Microorganism Resources(TMR), Keimyung University) ;
  • Kim, Hyun-Jeong (The Center for Traditional Microorganism Resources(TMR), Keimyung University) ;
  • Lee, Sam-Pin (The Center for Traditional Microorganism Resources(TMR), Keimyung University)
  • 서지현 (계명대학교 전통미생물자원 및 산업화연구센터) ;
  • 김현정 (계명대학교 전통미생물자원 및 산업화연구센터) ;
  • 이삼빈 (계명대학교 전통미생물자원 및 산업화연구센터)
  • Received : 2012.04.05
  • Accepted : 2012.06.15
  • Published : 2012.08.30
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Abstract

To evaluate the effect of aging on solar salts produced in Korea, the chemical compositions of the solar salts, including their heavy metal contents, were analyzed after they were aged for one-year (OA) and for three years (TA). The average contents of the components were: sodium chloride; 81.4% (OA) and 90.9% (TA), chloride; 57.7% (OA) and 65.0% (TA), moisture content; 4.7% (TA) and 12.0% (OA), insoluble solids; 0.03% (OA) and 0.04% (TA), and $SO_4$ ions; and 0.57% (TA) and 0.85% (OA). No significant difference was found, however, in the heavy metal contents. Heavy metals such as As, Pb, and Hg were detected with values far below the maximum permissible limit, and Cd was not detected in the salts. The TA solar salts showed higher values of sodium chloride, chloride, and insoluble solids than the OA solar salts, but the TA solar salts had lower moisture and $SO_4$ values. These results clearly indicate that the levels of heavy metals in the OA and TA solar salts that are produced in Korea are safe.

국내에서 주로 시판되고 있는 1년산 및 3년산 천일염의 일반 성분 및 As, Pb, Cd, Hg 등 유해 중금속 함량 등의 차이를 비교 분석하였다. 총 24종 천일염의 식염함량은 1년산 천일염의 경우 81.4%, 3년산은 90.9%로 나타났으며, 총 염소 함량은 1년산이 57.7%, 3년산은 65.0%이었고, 수분함량은 1년산이 12.0%, 3년산이 4.7%이었다. 또한 불용분 함량은 1년산이 0.03%, 3년산이 0.04%이었고, 황산이온함량은 1년산이 0.85%, 3년산은 0.57%이었다. 모든 천일염에서 As는 기준치 0.5 mg/kg이하로 나타났으며, Pb은 1년산이 0.12 mg/kg, 3년산은 0.09 mg/kg이었고, Cd는 모든 천일염에서 0.00 mg/kg으로 나타났으며, Hg는 1년산이 0.02 mg/kg 으로 3년산은 0.03 mg/kg으로 검출되었다. 따라서 국내 생산되는 천일염의 일반성분의 함량은 시료별 다소의 차이는 있었으나, As, Pb, Cd, Hg 등의 중금속함량은 식품규격 기준치 이하로 매우 적은 함량을 나타내어 중금속오염이 식품규격에 안전한 수준인 것으로 평가되었다.

Keywords

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