タチウオ魚鱗箔に関する研究-II : 生箔中の尿酸の存在について

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The investigation on the nitrogenous compounds of lustrous particles was performed, with the following results. 1) The nitrogenous matter in the raw particles proved positive in both murexide reaction and reaction with uric acid reagent. The former reaction appeared to be due to the presence of guanine which was generally noticed as a chief constituent of the lustrous particles, but the latter was observed to be due rather to the presence of uric acid than that of guanine. 2) From the particle, uric acid and guanine were each isolated first with 1% borax solution and next with 4% sodium hydroxide solution, and identified by paper chromatographic and other analysis. It was, consequently, confirmed that uric acid of about 30% per guanine content was contained in the part cles.