Analysis and evaluation of nutritional composition of Mytilus coruscus in Zhoushan sea area

By using routine methods, we evaluated the nutritional components in soft part of Mytilus coruscus to evaluate the nutritional and dietary value as well as developmental prospects in its breeding. Results show that the content of water, crude protein, crude fat andash in soft part of M.coruscus is 74.20%, 11.12%, 3.10% and 1.70%, respectively; seventeen common amino acids are detected in its muscle, including 7 essential amino acids required for human body (37.2%) and 4 delicious amino acids (37.9%). The first limiting amino acids areIle and Thr; the essential amino acid index (EAAI) is 45.27; the constituent ratio of essential amino acids meets the FAO/WHO pattern. For mineral elements, the content of Na is the highest, followed by K and Ca. For trace elements, the content of Zn is the highest, followed by Fe. The ratioamong Cu, Fe and Zn is reasonable. The results indicate that M.coruscus is a kind of marine mollusca with relatively high nutritional and dietary value, broad breeding prospects and market developmental potential.