Evaluation of Nutritive Quality and Nutritional Components in Ongchostoma sima

Nutritional components in the muscle of 10 pond-cultured Ongchostoma sima individuals were analyzed with conventional methods.The contents of crude protein,crude fat,moisture,ash and carbohydrates of fresh muscle samples were 17.15%,4.30%,76.36%,1.59%,and 0.60%,respectively.The dry samples of muscle contained 19 amino acids,of which 8 were essential for human health.The total content of amino acids was 64.12% and the content of essential amino acids was 28.19%,accounting for 43.96% of the total.The constitutional rate of the essential amino acids accorded,in the main,with the FAO/WHO standard.According to nutrition evaluation in amino acids score(AAS) and chemical score(CS),Try(tryptophan) was found to be the limiting amino acid in O.sima muscle.The essential amino acid index(EAAI) was 64.85.In the dry samples,the quality score of four tasty amino acids was 22.50%.The contents of EPA and DHA in fatty acids of O.sima were higher than those of some other economic fishes,being 5.28% and 30.07%,respectively.