Demineralization of soybean oligosaccharides extract from sweet slurry by conventional electrodialysis
文献类型： 外文期刊
作者： Wang, Qiushuang 2 ; Ying, Tiejin 1 ; Jiang, Tianjia 1 ; Yang, Dongmei 3 ; Jahangir, Muhammad Muzammil 1 ;
作者机构： 1.Zhejiang Univ, Dept Food Sci & Nutr, Hangzhou 310029, Zhejiang, Peoples R China
2.Guangdong Acad Agr Sci, Tea Res Inst, Guangzhou 510640, Guangdong, Peoples R China
3.GanSu Agr Univ, Dept Food Sci & Engn, Lanzhou 730070, Peoples R China
关键词： ED;sweet slurry;demineralization;lon-exchange membrane
期刊名称：JOURNAL OF FOOD ENGINEERING （ 影响因子：5.354； 五年影响因子：5.144 ）
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收录情况： SCI
摘要： The high salt concentration of soybean oligosaccharides extract from sweet slurry, a byproduct of soybean sheet production limits its full utilization in the food industry. Conventional electrodialysis (ED) demineralization of the extract was performed to reduce the ion content. The effects of operation parameters on efficiency of desalination and oligosaccharides retention in the sweet slurry extract were investigated. The experimental results showed that high desalination efficiency and oligosaccharides retention couid be achieved under optimal conditions of 20 V working voltage with 60 l/h flow rate, which resulted in a reduction of the total ion concentration from 5.022 mg/ml to about 0.26 mg/ml (94% reduction), and more than 80% of oligosaccharides retention in the dilute compartment. The result showed that ion-exchange membrane mediated electrodialysis was feasible for desalination of oligosaccharides extract from the sweet slurry.
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