水産動物筋肉のエキス成分-I : スルメイカ筋肉エキス中のアミノ酸,トリメチルアミン及びトリメチルアミンオキサイドについて

概要

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Seventeen amino acids in the alcoholic extracts of squid muscle were microbiologically determined before and after hydrolysis, and the results obtained are given in Table 1. Proline was most abundant and occupied about the half of total amino acids. Histidine, arginine, glycine and alanine were found to be present in a relatively high level. After hydrolysis, the most amino acids increased rather slightly, but the following amino acids, such as glycine, aspartic acid, glutamic acid, proline and lysine increased considerably. Trimethylamine (TMA) and trimethylamine oxide (TMO) in the same muscle were analyzed by Dyers method (Table 2). About fifty per cent of the extracted nitrogen have been accounted for as amino acid-N(25%), TMA-N (0.3%), and TMO-N (27.2%).