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This paper deals with the proximate composition of the cultured sea mussel (Mytilus edulis) which are distributed along the whole coastline of Korea, particularly abundant in the southern coast Studies on seasonal variation in chemical constituents of the mussel at Northern Bay of Choongmu were carr...

This paper deals with the proximate composition of the cultured sea mussel (Mytilus edulis) which are distributed along the whole coastline of Korea, particularly abundant in the southern coast Studies on seasonal variation in chemical constituents of the mussel at Northern Bay of Choongmu were carried out from March to December 1968 and the results obtained are as follows: 1. Moisture content in mussel meat was $78.5\%$ on the average; the maximum amounted to $81.3\%$ during May-June, while the minimum was $77.8\%$ in September. 2. Crude protein was in the range of $10.9-13.7\%$; the maximum was In September-October, the minimum appeared in March, and the average value was $12.8\%$. 3. Lipids on the average was $2.5\%$ and there was no markable difference .between the high and low contents. 4. Total sugar was $5\%$ during September-October in its highest, while there appeared minor contents during winter season. 5. Crude ash on the average was $1.5\%$ the and maximum was in November-December. As for minerals in the ash, $963mg\%$ of phosphate, $82mg\%$ of calcium, and $188mg\%$ of iron were found respectively. 6. pH was in the range of 6.02-6.55, but it generally declined to acidity in the summer season. 7. In amino acid contents, there found 16 kinds; $710mg\%$ of glutamic acid, $696mg\%$ of aspartic acid, $383mg\%$ of Iysine, $225.4mg\%$ of valine, $225.1mg\%$ of proline, etc. 8. The amounts of Protein, lipids and total sugar are tend to increase from August to October, particularly in September.