Analysis and evaluation of the nutrient content of Mytella strigata
Alien species are a"double-edged sword",which has a significant impact on the local ecological environment and social economy.The accurate evaluation of the nutritional value of alien species is an important segment to exert its economic benefits.Mytella strigata is an alien species that has invaded the southeast coast of China in recent years.On the one hand,it threatens the survival of the local species such as Perna viridis,and on the other hand,it has been sold and eaten as a seafood in Hainan,Fujian,and other areas.In this context,we determined the routine nutritional indicators of the soft parts to analyze and evaluate the nutritional value of M.strigata according to the relevant national food safety testing standards.The results showed that the content of moisture,ash,crude protein,and crude fat(wet weight)in the soft parts of M.strigata accounted for 83.20%,2.00%,12.09%and 0.60%,respectively.A total of 16 amino acids were detected,accounting for 84.53%of the total crude protein.Among them,there are 7 essential amino acids,accounting for 35.23%of the total amino acids.The EAAI score was 76.24 and the first limiting amino acid was cysteine+methionine.There were 18 kinds of fatty acids detected,including 7 kinds of SFAs(43.71%),4 kinds of MUFAs(11.05%),and 7 kinds of PUFAs(45.27%).The content of DHA and EPA accounted for 19.85%and 13.32%of the total fatty acid,respectively.The soft parts of M.strigata are rich in mineral elements,and the contents of trace elements such as Ca,Fe,Zn and Mn are high.The results showed that the amino acid ratio of M.strigatawas consistent with the ideal protein pattern of FAO/WHO.M.strigatahas the potential to become a high-quality health food because of its high protein nutritional value,high UFA content,and rich mineral element content.
NETL
NSTL
万方数据
