Crystallization of Sodium Salt of Organic Acid as Example for Neutral Salt Recovery of Bio Acids.

The optimization of an organic acid production process downstream of fermentation is presented. Sodium salt solution of the organic acid (Na salt) solution is the product in the industrial fermentation process for the organic acid production and until today, it has not been attempted to directly crystallize/isolate the Na salt under these circumstances. Evaporation crystallization of Na salt directly from the solid-free fermentation broth without purification can be realized with high product purity.