The Developement Of Single-column Simulated Moving Bed Devices And Its Processing Technology In Starch Sugar Separation

In recent years, Starch sugar industry developed rapidly and the variety increasedContinuously, Starch sugars are widely used in food, chemical, pharmaceutical and otherindustries.As a new kind of edulcorant, Starch sugars are widely used in the food industry.They enhance the quality of the food industry, but also improve the health level of people.In the production of a starch sugar process, essential to have other miscellaneous sugarproduction, miscellaneous sugar will affect the nature and function of specific starch sugar.Therefore, to improve the purity of starch sugar is the common goal of researchers at homeand abroad. Especially the emergence of simulated moving bed technology and applicationin the sugar production industry, has aroused wide attention of researchers.This paper first explores the fixed bed chromatography and the effect of simulatedmoving bed chromatography separation of Fructose Syrup. Fixed bed chromatographyusing4specifications for501000mm column, using Calcium type strong acid cationresin as the stationary phase, deionized water as eluent, collecting the eluted anddetermining the purity of fructose and glucose. The HPLC analysis shows that, the eluentcomposition and raw material liquid composition or less, almost no separation effect. Incontrast, the single column SMB method, which is a specification for1210000mmPEcoil, with Calcium type strong acid cation resin as the stationary phase, constanttemperature to70℃, deionized water as eluent, collecting the eluted liquid anddetermination. Through4times of single column SMB cyclic feeding operation, separationof the glucose and fructose by HPLC detection, the purity reaches more than95%. The totalsugar recovery was91.30%, basically can achieve the separation of fructose and glucoseeffect.After determining the single-column SMB technology is available in the separationbetween fructose and glucose, this paper further explore the process parameters. Theinfluence of feed flow, temperature and flow rate on the separation effect is studied bycarring on single factor experiment, and the optimal values in range of the factors aredetermined. On this basis, this paper used orthogonal experiment of L9(33) method, tookglucose recovery rate as the target, three factor cross combination experiment was carried on. Through Statistical analysis of the experiment results, the optimum process parametersare: the separation temperature is50℃, feed flow for glucose and fructose solution is10g,the flow rate is3.6ml/min.Under the optimum process parameters, this paper explored the separation effect ofsimple device single column SMB on wheat syrup and the effect of removing glucose fromisomaltooligosaccharide. The results show that, through3single column SMB cyclicfeeding operation, the resulting glucose and maltose by HPLC detection, the purity reachesmore than95%. Total sugar recovery was66.55%, the recovery rate of glucose is78.82%,the recovery rate of maltose is54.27%, basically can achieve the maltose and glucoseseparation effect. Proved by HPLC, the total content of oligosaccharides is enhanced from66%to92%and above, the glucose content is lower than2%.