Abstract
The decoloration method for Inulin from Jerusalem artichoke with activated carbon andmacroporous resin was investigated in this manuscript. Six resins (D113, D301, 001×7, 201×7,DA201-C and activated carbon) with same diameter were studied through static experiments.Meanwhile, the decoloration duration and resin dosage were also determined. Macroporous resinadsorption method was better than the traditional activated carbon adsorption method. The resultsalso suggested that the polar and ionogenic properties significantly affected the decoloration rate. The001×7-201×7 type resin which are strongly polar resin offered the better decolorizing effect. Most ofpigment impurities were successfully removed from inulin solutions with 1:10 resin dosage and 40min decoloration process. Moreover, the decoloration rate and inulin loss rate were 82.29% and 12.67%respectively. This study would provide a potential approach for large-scale production of inulin forits wide applications in dietary supplements.
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