• Production of acid reduced or deionised fruit juices and fruit sugar syrups according to customer’s specifications
  • Minimal processing cost
  • Fully automatic, PLC control and PC based operator interface

Bucher Unipektin Ion Exchange Systems with weak anion exchange resins are used to adjust the sugar/acid ratio of fruit juices (fruit acid reduction). If cation and anion exchange resins are applied it is possible to completely deionise juices and by-products for recovering the fruit sugars. By adding a polishing step with adsorption resins, colourless fruit sugar solutions can be produced.

Clarified juice is passed through selected combinations of ion exchange resins. Charged components are retained on the respective resin by ionic forces, releasing an equally charged ion (e.g. H+, OH-) into the product. When the deionising capacity of the resins is exhausted, the juice is displaced from the columns and the resins are independently regenerated with acids, bases or salts, preparing them for the next juice process cycle. Optional adsorptive polymer vessels can be added for improved colour and organic molecules reduction.

Plant sizes range from 500 to 50’000 litres/hr or more, depending on application. Multiple trains (parallel vessels) for continuous operation. Stainless steel construction throughout, custom built to local regulations. Specialist technical support available from our R&D and engineering teams.