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http://dx.doi.org/10.3746/jkfn.2006.35.2.212

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

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)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.35, no.2, 2006 , pp. 212-218 More about this Journal
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.
Keywords
paralytic shellfish poison (PSP); toxicity; blue mussel; HPLC; STX; GTX; detoxification;
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