柔魚内臓の生化学的研究-II : 肝臟エキスの窒素化合物について

概要

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In the previous paper it was reported that liver is the largest organ in cuttle-fish, holding 60-70% of the viscera, and contains crude protein as much as its meat. It was reported by KITABAYASHI2) that about half amount of nitrogen contained in the liver was extracted by hot water. It has often been observed that more than 50% of nitrogen contained in cuttlefish viscera is dissolved in hot water3). In order to clear up physiological function and way of utilization of these organs, it is important to be determined the chemical constituents of these organs. Accordingly, in this paper the author investigated the distribution of nitrogenous compounds in hot water extract of the liver (Tables 1 and 2), and moreover detected 13 kinds of free amino acids in the extract, such as cystine, serine, glutamic acid, tyrosine, lysine, histidine, arginine, proline, leucine, valine, aspartic acid, glycine, alanine.
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