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ABSTRACT

A β-cyclodextrin polymer was used to remove the bitter substances limonin and naringin from aqueous solution and from filtered orange and grapefruit juices using batch and continuous flow column treatments. Other components such as naringenin 7β-rutinoside, coumarins and flavonoids were removed, but the total soluble solids (°Brix), total acidity and ascorbic acid content of the juice were unchanged. The polymer could be regenerated by extraction with an organic solvent.