Comparative analysis of muscle nutrients between cultured and wild Cynoglossus semilaevis
It has not been reported whether the nutritional value of cultured or wild Cynoglossus semilaevis is higher or lower.The national standard method was used to determine the contents of amino acids,fatty acids and minerals in muscle of cultured and wild C.semilaculatus in this study.The results showed that the total amino acid content of cultured C.semilaevis was obviously higher than that in wild fish.According to amino acid score(AAS)and chemical score(CS),the first limiting amino acid of cultured and wild C.semilaevis is tryptophan(Trp).The essential amino acid indexes(EAAI)of cultured and wild C.semilaevis were 72.45 and 62.7,respectively.The total amount of fatty acids in muscle of cultured C.semilaevis was higher than that of wild fish.The total amount of eicosapentaenoic acid(EPA)+ docosahexaenoic acid(DHA)was 7.6 times that of wild fish,in which EPA was 5.5 times and DHA was 9 times of wild fish.The muscle of C.semilaevis is rich in minerals.The selenium content of cultured fish was 4 times that of wild fish.The phosphorus content was 20%higher than that of wild fish,while the calcium content was 23%lower than that of wild fish.In conclusion,the overall nutrient composition and value of muscle in cultured C.semilaevis were higher than those of wild fish.
NETL
NSTL
万方数据
维普
