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Why can ion exchange improve the flavor and storage time of pineapple juice and wine?
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ion-exchange reaction
Figure 1: Chemical structure of cation exchanger. The exchangeable ions are marked +. The whole structure is permeated by solvent molecules, usually water (not shown).
Ion exchange improves the flavor and storage time of pineapple juice and wine by removing trace amounts of heavy metals from these beverages. These heavy metals are undesirable because they not only negatively affect the flavor but also act as catalysts for oxidation, which can degrade the quality and stability of the products over time. By utilizing ion-exchange resins to extract these metallic impurities, the overall shelf life and sensory profile of the juices and wines are enhanced.1