Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Detection of Diarrhetic Shellfish Poisons by LC-MS/MS

설사성 패류독의 LC-MS/MS에 의한 분석

  • Yun, So-Mi (Division of Marine Life Science and Technology, Institute of Marine Industry, Gyeongsang National University) ;
  • Jang, Jun-Ho (Graduate School of Agricultural Science, Tohoku University) ;
  • Shin, Il-Shik (Faculty of Marine Bioscience & Technology, Kangnung National University) ;
  • Lee, Jong-Ok (Food Contaminants Team, Korea Food and Drug Administration) ;
  • Lee, Jong-Soo (Division of Marine Life Science and Technology, Institute of Marine Industry, Gyeongsang National University)
  • 윤소미 (경상대학교 해양생명과학부) ;
  • 장준호 (일본 동북대학 대학원 농학연구과) ;
  • 신일식 (강릉대학교 해양생명공학부) ;
  • 이종옥 (식품의약품안전청 식품오염물질팀) ;
  • 이종수 (경상대학교 해양생명과학부)
  • Published : 2007.07.30
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Abstract

Diarrhetic shellfish poisons (DSP) such as okadaic acid (OA), dinophysistoxin-1 (DTX1), pectenotoxin-1(PTX1), PTX2, PTX6 and yessotoxin (YTX) were determined simultaneously by LC-MS/MS and mouse bioassay in the shellfishes (oyster, mussel, Washington purple clam, ark shell, scallop and short necked clam) collected at Tongyeong, from March to September, 2006. Oyster and mussel were found to contain DSP (0.05${\sim}$0.1 MU/g) in March by mouse bioassay; however, no DSP components were detected on the LC-MS/MS. Also, a small amount of DTX1 (0.05 ${\mu}g/g$) in mussel (June) and OA (0.01${\sim}$0.02 ${\mu}g/g$) in 5 species of shellfishes(August) were determined by LC-MS/MS.

LC-MS/MS법에 의하여 설사성 패류독소 7종(okadaic acid, dinophysistoxin-1, -3, pectebotoxin-1, -2, -6, yessotoxin)의 동시 분석 조건을 확립하였고, 2006년 3월부터 9월까지 매월 5종의 이매패(굴, 진주담치, 반지락, 가리비, 개조개, 6월부터 9월까지는 가리비 대신 피조개)를 정기적으로 통영시장에서 구입하여 분석하였으며, 기존의 마우스 검사법과 비교하였다. 마우스 검사법으로는 총 35종 시료 중 3월의 굴과 진주담치에서 0.05${\sim}$0.1 MU/g의 독성을 나타내었으나, 이미 알려진 설사성 패류독소는 전혀 검출되지 않아 다른 성분에 의한 것으로 판단되었다. 한편, LC-MS/MS법에 의하여서는 6월 진주담치에서 dinophysistoxin-1(DTX1)이 0.05 ${\mu}g/g$ 검출되었으며, 8월의 모든 시료에서 okadaic acid(OA)가 0.01${\sim}$0.02 ${\mu}g/g$ 검출되었다. 이들은 외국의 기준치[0.05 MU/g(일본), OAs(OA+DTX1) 0.16 ${\mu}g/g$(EU)]보다 매우 낮은 함량으로 식품 위생상 안전하였다.

Keywords

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