硝酸酸化殿粉に関する研究 (第4報)

酸化殿粉のアルカリ処理によるグルクロン酸の生成

抄録

Starch oxidized with nitric acid was neutralized with alkali and boiled, from which formation of glucuronic acid was detected. This reaction was found to progress even at room temperature by the use of excess alkali. The solution after alkali treatment does not indicate increased formation of glucuronic acid even after acid hydrolysis and this fact suggests that oxidized starch undergoes complete change by alkali treatment. The amount of glucuronic acid formed by the action of alkali was larger in oxidized starch which was considered to contain greater degree of oxo structure by secondary oxidation. Consequently, formation of glucuronic acid by alkali treatment was found to be closely related to intramolecular structure, especially oxo structure.