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Of the several methods proposed for decreasing toxicity of Paralytic shellfish poison(PSP) from intoxicated shellfish, heat treatment has been most popular, although a large percentage of the incidents of PSP illness have been related to the ingestion of cooked shellfish. The purpose of this study was to determine the kinetics of PSP destruction at various temperatures. The homogenate of intoxicated blue mussel(Mytilus edulis) was heated at temperature ranging from 90 to 121 and toxicities measured in samples heated for various time intervals. The rate constant(k) per second was 3X 10^(-4) at 90℃, 4.98X10^(-4) at 100℃, 7.38X10^(-4) at 116℃ and 8.38X10^(-4) at 121℃. By the Arrhenius equation, the decimal reduction time(D-value) was 121 min. at 90℃, 82 min, at 100℃, 58 min. at 116℃ and 53 min. at 121℃. The z-value, activation energy(E_a) and Q_(10) was 72℃, 3.9X10^7(J/kgmol) and 1.39, respectively.
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