Study on removal of coloured impurity in soybean oligosaccharides extracted from sweet slurry by adsorption resins
文献类型： 外文期刊
第一作者： Ying, Tiejin
作者： Ying, Tiejin;Wang, Qiushuang;Jahangir, Muhammad Muzammil;Jiang, Tianjia
作者机构：
关键词： soybean oligosaccharide;coloured impurity;adsorption isotherm
期刊名称：JOURNAL OF FOOD ENGINEERING （ 影响因子：5.354； 五年影响因子：5.144 ）
ISSN：
年卷期：
页码：
收录情况： SCI
摘要： The dark colour of soybean oligosaccharides extract from sweet slurry, a byproduct of soybean sheet pro-duction limits its full utilisation in the food industry. Adsorption resins were performed to remove the coloured impurity. The effects of operation parameters on decolourisation efficiency and adsorption iso-therm were investigated. The experimental results revealed that more than 70% of the coloured impurity was removed in final products by macroporous resin DM-130 after 24 h contact. Temperature had signif-icant influence on adsorption. The adsorption process and the thermodynamic data indicated that the process was possibly exothermic and spontaneous. The optimum ratio of resin mass/oligosaccharides solution was approximately 0.13 g/ml. The adsorption isotherm agreed with Freundlich model, indicating that the adsorption process was monolayer and heterogeneous. Adsorption kinetics fitted the pseudo-second-order kinetic model. The second step of intra-particle diffusion would be the rate-controlling step.
分类号： TS2
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