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Evaluation of nutritive quality and nutritional components in Hemibarbus maculates Bleeker muscle

GU Ruo-bo,WEN Hai-bo,XU Gang-chun (Key Open Laboratory for Genetic Breeding of Aquatic Animals and Aquaculture Biology,Ministry of Agriculture,Freshwater Fisheries Research Center,Chinese Academy of Fishery Science,Wuxi 214081,China)  
Nutritional components in the muscle of Hemibarbus maculates Bleeker were analyzed with routine methods.The results show that contents of crude protein,crude fat,moisture and ash in muscles were(17.5%),2.8%,78.4% and 1.2%,respectively.In muscles,the total content of 18 common amino acids in muscle was 15.46%,while 88.34% in crude protein;the content of 8 essential amino acids was 6.14%,while 39.69% in total amino acids.It was apparent that the constitutional rate of the essential amino acids accorded with the FAO/WHO Standard fundamentally.According to nutritional evaluation in amino score(AAS) and chemical score(CS),the first limited amino acids were(Met + Cys),the essential amino acid index(EAAI) was 69.02.The content of poyunsaturated fatty acid(PUFA) in fatty acids was 23.6%,which was higher than that in other economic fishes. It was indicated that Hemibarbus maculates Bleeker is one of freshwater fishes with better nutritive value.
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