| 摘要 |
PURPOSE: Provided is a process for purifying L-ascorbyl 2-monophosphate which is stable against thermal and oxidative degradation compared with L-ascorbic acid (vitamin C) and can be used as an additive for foodstuffs, animal feedstuffs, and cosmetic products. CONSTITUTION: The process comprises the steps of: passing an aqueous solution of a desalted mixture containing the desired L-ascorbyl 2-monophosphate through a column of a basic anion exchange resin, wherein the desalted mixture is obtained by desalting the products produced from the phosphorylation of an L-ascorbic acid salt under basic conditions; desorbing the L-ascorbyl 2-monophosphate from the resin by using an aqueous alkali metal hydroxide solution as an eluent; and collecting the fraction which contains the desired L-ascorbyl 2-monophosphate as a main dissolved component from the eluate.
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