To provide a method for reducing sodium concentration in a desalted plum juice which has excellent safety as a food production method and high recovering efficiency of organic acids as active components.
The method for reducing sodium concentration in a plum juice includes a step of preparing a dialyzer for ion exchange membrane electrodialysis divided into multiple chambers by an ion exchange membrane configuration at least partly having an arrangement AKKA [in the arrangement, A is an anion exchange membrane and K is a cation exchange membrane], a step of introducing an acid solution to a chamber between A and K and closer to an anode in the dialyzer and introduce the desalted plum juice prepared from plum vinegar to a chamber between K and K, and a step of performing ion exchange membrane electrodialysis.
KANAYAMA HIROSUKE
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Takuji Yamada
Muneo Yamamoto
Masaishi Nishishita