大孔吸附树脂对库尔勒香梨果汁脱色的研究

Macroporous Resin for Decolorization of Korla Pear Juice

摘要:

以可溶性固形物以及脱色率为考察指标，利用静态吸附实验对7种大孔树脂进行考察，并通过静态吸附和动态吸附的单因素影响实验，对筛选树脂的最佳脱色和再生工艺条件进行考察。结果表明：SA-900C大孔树脂的脱色效果最好，脱色率为80.37%，透光率为95.3%。最佳脱色条件为：流速为3.8 mL/min，温度40 ℃，可溶性固形物12.5 Brix，最佳再生条件：4%的NaOH溶液为再生剂，洗脱再生流速为3.3 mL/min。

Abstract:

Seven kinds of macroporous resin were selected by studying the soluble solids and the decolorization rate. Through the static and dynamic separateness factor experiments，the optimum conditions of decoloration of stevioside and resin regeneration were obtained. The results showed that LSA-900C macroporous resin was the best resin with decolorization rate being of 80.37% and transmission rate being of 95.3%. The best decoloration technology conditions were: the flow rate 3.8 mL/min, the temperature 40 ℃, and soluble solids 12.5 Brix. The best regeneration technology conditions were: 4.0% NaOH eluent as the regenerates and flow rate of 3.3 mL/min.