文献类型：期刊文献

英文题名：Establishment of a nanofiltration rejection sequence and calculated rejections of available monosaccharides

作者：Liu, Hetian[1,2];Zhao, Liming[1,2];Fan, Liqiang[1,2];Jiang, Lihua[1];Qiu, Yongjun[1,2];Xia, Quanming[1];Zhou, Jiachun[1]

机构：[1]E China Univ Sci & Technol, R&D Ctr Separat & Extract Technol Fermentat Ind, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[2]Shanghai Collaborat Innovat Ctr Biomfg Technol SC, Shanghai 200237, Peoples R China

年份：2016

卷号：163

起止页码：319

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20161102110724);WOS:【SCI-EXPANDED(收录号:WOS:000374076700037)】；

基金：This work is financially supported by the National Natural Science Foundation of China (No. 31371725). It is also supported by the National High Technology Research & Development Program of China (863 Program) (No. SS2014AA021202).

语种：英文

外文关键词：Nanofiltration; Monosaccharide; Molecular shape; Spectrum of monosaccharide rejection

摘要：To evaluate the feasibility of mixed monosaccharide separation by nanofiltration (NF), a commercial membrane, Desal-5 DK1812, was selected to filter six monosaccharides, including glucose, fructose, man nose, sorbose, arabinose, and xylose. The experiments were performed under the same conditions in single batch of full cycle mode, and the sequence of monosaccharide nanofiltration rejections was obtained. Differences in NF rejections (R-obs) were analyzed by comparing the molecular structures of the monosaccharides, after which computational molecular sizes (r(s)) were calculated by a mathematical formula correlated with the 3D structures of the molecules. The Donnan steric pore model was used to obtain the rejections (R-cal) of the monosaccharides as a function of r(s). Concentration polarization was also taken into account to calculate R-real The results showed that the r(s) values of fructose, glucose, mannose, sorbose, arabinose, and xylose were 0.3235, 0.3156, 0.3113, 0.3012, 0.2748, and 0.2677 nm, respectively, and that their R-cal agreed well with their R-real. Therefore, differences in R-obs were mainly due to differences in the molecular structures of the monosaccharides, and calculating r(s) using molecular structural parameters is reasonable. The results indicated the extreme importance of amplifying rejection differences by regulating computational molecular sizes when separating mixed monosaccharides by NF. (C) 2016 Elsevier B.V. All rights reserved.