Abstract: In this study, ion exchange chromatography was used to separate fructose from fragrant pear. The deacidification resin and deacidification conditions were optimized. The optimal deacidification resin was obtained through ion exchange resin screening,dynamic adsorption experiments.The deacidification conditions were optimized through orthogonal experiment.The experimental results showed that the optimal ion exchange resin was LX-200;The optimized deacidification conditions for the extraction of fructose from fragrant pear juice were:11 brix as the density of fragrant pear juice,3.8 mL/min as the flow rate,35 ℃ as the extraction temperature.No-acid fructose products were obtained using the optimized deacidification conditions.

Key words: fragrant pear, fructose, deacidification