Juice deacidification (Acidity adjusment)
In some cases, the acid content of a beverage is too high. In this case, specific weak base anionic resins can be used to reduce the acid content of this beverage.
The process is rather simple by passing the liquid through a resin bed, removing almost all free acidity and blending back the beverage to the level of acidity desired. In case the liquid is turbid, the column should have 50% free space for efficient backwash or an external backwash tower to remove the solids from the resin.
These organic acids can be recovered eventually by selective elution of the resin bed with another acid or salt.