魚肉系におけるヌクレオチドの分解速度について

概要

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An attempt was made to determine the rate-constants for the decomposition of adenosine-phosphates (Adp), inosinic acids (IMP) and their combination, apparent IMP (App-IMP), in cold stored carp and yellow-tail muscle cubes. 1) Both the degradations of Adp and App-IMP were essentially of the first order and the degradation of IMP the consecutive first order. The rate-constants (k_a, k_i, and k_i’) could be estimated, using each rate-equation. 2) The rate-constants, k_a and k_i, varied with storage-temperature. Maximum values of IMP and the time required to reach them were also affected by the temperature. 3) The k_i’, rate-constant of App-IMP, was generally smaller than k_i, but the relative magnitude for different temperature in the former was approximated to that in the latter. Then, the application of above calculations may be of some use in discussing the relation of temperature to nucleotides-degradation.