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中文摘要：
目的：考察树脂法对巴戟天低聚果糖中所含色素的脱除能力。方法：以脱色率、寡糖保留率为指标，筛选合适树脂对巴戟天低聚果糖进行脱色，采用单因素试验考察其静态及动态吸附工艺。HPLC—ELSD测定耐斯糖含量。结果：确定采用D941型树脂，其最佳工艺条件为室温（25℃）下，15g·L^-1巴戟天寡糖溶液（pH5．88）4BV，流速4BV·h^-1，径高比1：10。脱色率92．54％，寡糖保留率82．76％，耐斯糖质量分数由22．46％升高至29．94％。结论：D941型树脂对巴戟天低聚果糖具有良好的脱色能力。
英文摘要：
Objective： To study on elution property of pigment contained in fructo-oligofructose from Morinda officinalis suitable by resin adsorption. Method： With decolorization rate and retention rate of oligosaccharide as indexes, suitable resin was chosen, and static and dynamic adsorption tests were carried out to investigate decolorization effect of fructo-oligofructose from M. officinalis by single factor test. The content of nystose was determined by HPLC-ELSD. Result： D941 resin was chosen, optimum technology conditions were as follows： room temperature （25 ℃ ）, oligosaccharide solution 4 BV （pH 5.88, 15 g· L^-1-l）, flow rate 4 BV · h^-1, diameter high ratio 1：10. Under these conditions, decolorization rate and retention rate of oligosaccharide were 92.54% , 82.76% , respectively, and the content of nystose increased from 22.46% to 29.94%. Conclusion： D941 resin had good decolorization effect on fructo-oligofructose from M. officinalis.
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