| 摘要 |
PROBLEM TO BE SOLVED: To suppress decrease in molecular weight when producing polyuronic acid salt by electrolytic oxidation of polysaccharide.SOLUTION: In a method of producing polyuronic acid salt, polysaccharide is electrolytically oxidized in hydrous electrolyte that contains: one or more mediator selected from N-oxyl compound, N-hydroxy compound, and nitroso compound; one or more salt selected from perchlorate, phosphate, and boron compound salt; and alkali metal chloride. |
