水産動物筋肉中の有機燐酸化合物に関する研究-3-

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Post-mortem changes in adenosine polyphosphate content occurring in carp muscle, which had been stored at various temperatures (16°C., 0°C., -8°C., liquid air), were studied by ion exchange chromatography. The results may be summarized as follows. (1) When carp muscle was held at 16°C., ATP and ADP were broken down rapidly and a large amount of decomposed compounds were accumulated in the fractions of adenine and adenosine (Fig. 1). (2) Held at 0°C., the changes in amounts of ATP and ADP were comparatively slow and the decomposed compounds were mainly in the fraction of AMP (Fig. 2). (3) Held at -8°C., and after 6 hrs. from start, muscle was completely solidified by freezing. The contents of ATP and ADP decreased markedly and the decomposed compounds, which will be considered as IMP, appeared in the fraction of AMP (Fig. 3). (4) In liquid air, rapid freezing occurred and the contents of ATP and ADP showed almost no changes (Table 1).
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