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Detoxification and Paralytic Shellfish Poison Profile with Heating, Storage and Treatment of Alkaline in Blue Mussel, Mytilus edulis

알칼리 처리 및 가열, 저장에 따른 진주담치의 마비성 패류독 성분 특성 및 제독

  • Jang, Jun-Ho (Division of Marine Biosciences, Institute of Marine Industry, Gyeongsang National University) ;
  • Yun, So-Mi (Division of Marine Biosciences, Institute of Marine Industry, Gyeongsang National University) ;
  • Lee, Jong-Soo (Division of Marine Biosciences, Institute of Marine Industry, Gyeongsang National University)
  • 장준호 (경상대학교 해양생물이용학부) ;
  • 윤소미 (경상대학교 해양생물이용학부) ;
  • 이종수 (경상대학교 해양생물이용학부)
  • Published : 2006.02.01

Abstract

Changes of paralytic shellfish poison (PSP) contents, toxicity and toxin composition with pH and storing periods at different temperature in toxic blue mussel, Mytilus edulis, were tested by using fluorometric HPLC method. Toxicity at pH 3 was the highest as 14.1 MU/g $(100\%)$ and showed 12.9 MU/g $(92.1\%)$ at pH 5, 9.0 MU/g $(63.8\%)$ at pH 7, 3.6 MU/g $(25.5\%)$ at pH 9 and 0.8 MU/g $(5.7\%)$ at pH 10 which suggested PSP was unstable at alkaline conditions. The decrease in toxicity during storage days was depend on pH and temperature. The toxicity markedly decreased until during the first S day storage $(19.9\~65.3\%)$ at all pH (3, 5, 7, 9) and temperature (30, 5, $-20^{\circ}C$), but, slightly decreased after then till to 30 days. C group toxin (C1 and C2) was the major components and other toxins such as GTX 1,2,3,4, STX and dcSTX were detected. Among the 8 toxins, GTX1,4, dcSTX and STX were firstly decreased according to the decreasing the toxicity at all processing conditions. The toxicity in blue mussel (14.1 MU/g) were able to remove by heating over 10 minutes at pH higher than 7.

독화된 진주담치 (blue mussel, Mylilus edulis)를 pH 처리, 온도별 저장 그리고 가열에 의한 마비성 패류독의 독성과 독조성 특성 변화는 다음과 같다. pH 3으로 조절한 시료가 14.1 MU/g$(100\%)$으로 가장 높은 독성이 검출되었고, pH 5는 12.9 MU/g$(92.1\%)$, pH 7은 9.0 MU/g$(63.8\%)$으로 검출되었으나, 마비성 패류독은 독성이 불안정한 알칼리 조건인 pH 9에서는 3.6 Mu/g$(25.5\%)$, pH 10은 0.8 Mu/g$(5.7\%)$으로 독성 이 검출되었다. 저장기간 동안의 독성은 pH(3, 5, 7, 9) 그리고 온도(30, -5, $20^{\circ}C$)에서 5일$(19.9\~65.3\%)$까지 현저하게 감소하였으나, 5일 후부터 30일까지는 약간의 독성이 감소하였다. 그리고 더 높은 온도에서 저장에서는 독성이 더 빨리 감소하였다. 대부분의 성분인 C군(C1, C2)과 GTX1,2,3,4, STX 그리고 dcSTX으로 8개의 성분이 검출되었고, 8개의 독성분 중에서 GTX1,4, STX 그리고 dcSTX는 모든 가공 조건에서 독성이 감소함에 따라 제일 먼저 감소하였다. 독성이 기준 독성치(4 MU/g)보다 3배 이상이더라도 마쇄된 패류 육에 pH를 알칼리 (pH 7이상)로 처리하고, 10분의 가열에 의해 독성을 완전히 제거할 수 있었다.

Keywords

References

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