Composition analysis and nutritional evaluation of different parts of Decapterus maruadsi

The nutritional components of the bone, muscle, viscera (Decapterus maruadsi) were determined, and their nutritional value was synthetically evaluated. Results showed that there were differences incruding protein content from bone, muscle, viscera, and the muscle protein content was as high as 63.64%, which significantly higher than that in bone (54.96%) and viscera (43.79%) (p<0.05). 18 kinds of amino acids were detected, in which the essential amino acids accounted for 40%~43% of total amino acids. The content of glutamic acid was the top (8%~10%). The main limiting amino acids were methionine and cysteine, and essential amino acid index (EAAI) in viscera was 115.74, while the content of bone and muscle were 94.46 and 66.14, respectively. 18 kinds of fatty acids were found in Decapteru smaruadsi with the top content of palmitic acid (20%~24%), and the total content of eicosapentenoic acid (EPA) and docose hexaenoie acid (DHA) was 17%~23%. It was concluded that Decapterus maruadsi would be a kind of fish with the high quality economic, high protein, high nutritional value and high economic value which had great potential for comprehensive exploitation and utilization.