Physicochemical Characteristic of Concentrate Prepared by Puffer Muscle and Skin
2010
Kim, R.Y., Changshin College, Masan, Republic of Korea | Sung, N.J., Gyeongsang National University, Jinju, Republic of Korea | Kim, W.T., Changshin College, Masan, Republic of Korea | Park, J.H., Kyungnam University, Masan, Republic of Korea | Kim, Y.J., Changshin College, Masan, Republic of Korea | Ju, J.C., Changshin College, Masan, Republic of Korea
The objective of this study was about physicochemical characteristic of puffer muscle and skin to promote the utilization of puffer as fish protein. In proximate composition, crude protein of dried puffer muscle and skin powders were 89.5% and 82.7%, respectively. Skin powders had higher lipid contents than muscle powders. Ash contents of muscle powders were higher than those of skin powders. In nucleotides and their related compounds, the contents of nucleotides were in order of IMP and ADP. The contents of saturated fatty acid in puffer muscle (83.9%) was higher than skin powders (66.3%). Oleic acid, mono-unsaturated fatty acid, in skin powder (25.9%) was higher than in muscle powders. Seventeen kinds of composition amino acids were detected in muscle powders, while 16 kinds of amino acids were found in skin powders. Total contents of amino acid in muscle powders (83,739 ㎎/100 g) were higher than those of skin powders (75,361 ㎎/100 g). In the muscle powders of puffer, glutamic acid was the highest amino acid with the concentration of 13,707 ㎎/100 g, and was in order of aspartic acid, lysine, leucine, arginine, alanine, valine and glycine. In skin powders, glutamic acid was the highest content with 14,843 ㎎/100 g followed by proline, alanine and arginine. Twenty five kinds of free amino acids were detected in dried muscle powders, while 22 kinds of free amino acids were found in dried skin powders. Taurine of dried puffer muscle and skin powders was the highest free amino acid with the concentration of 554.4 ㎎/100 g and 153.6 ㎎/100 g, respectively. The contents of total free amino acids of dried muscle powders were higher than those of dried skin powders. Especially, cysteine was only detected in dried muscle with the content of 159.3±1.8 ㎎/100 g.
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