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纳滤对低聚壳聚糖制备液的纯化研究

作者：
韩永萍林强

单位：纳滤膜；纯化；低聚壳聚糖

关键词： TQ028.8

DOI号：

分类号：

出版年,卷(期):页码： 2012,32(4):75-80

摘要：

对低聚壳聚糖制备液进行了纳滤纯化研究。试验确定纳滤的最佳操作条件为35~40℃、操作压力为1.0Mpa，制备液在纳滤之前还应稀释2.5倍，间歇恒容渗滤过程的每一运行周期的最优浓缩倍数为1.5倍。在该条件运行下，制备液中的单糖和大部分二糖及一价盐离子被脱出，高活性低聚壳聚糖的纯度高达92%，料液体积被浓缩了接近2倍。

In this paper, the experimental research was made for the desalination and purification Chiitooligosaccharides (COS) solution with nano-filtration (NF). The optimal operation conditions of NF purified COS solution were obtained as follow: 35~40℃, 1.0MPa operation pressure, COS solution diluted 2.5 times to be the feed solution of NF, and the optimal solution volume concentration factor of a period of the batch constant volume diafiltration process was 1.5. Under this conditions, the monosaccharide and most of disaccharide and monovalent salts were removed from COS solution by NF, and the purity of high biological activity COS was up to 92%, at the same time the volume was condensed to half of the initial feed solution.

基金项目：

作者简介：

韩永萍(1971- ), 女, 山东人, 副教授, 博士. E-mail:hypyyt @163.com

参考文献：

[1] Jeno Y J, Kim S K. Preparation of chitin and chitosan oligosaccharides and their application in physiological functional foods [J]. Food reviews international,2000,16(2):159~176
[2] 陈欢林.新型分离技术[M].北京:化学工业出版社,2005,p17
[3] Elina S, Mika M, Marianne N, et al. Separation of xylose from glucose by nanofiltration from concentrated monosaccharide solutions[J]. J Membr Sci.，2007, 292: 106-115.
[4] 王泽俊, 崔丽英, 张秋跃等. 离子色谱法测定地下水中的乙酸根含量[J].化学分析计量.2004,13(1): 46-47.
[5] 林颖,吴簌敏,吴雯等.天然产物中的多糖含量测定方法正确性研究[J]. 天然产物研究与开发.1996, 8(3):5-8.
[6] Bouchoux A, Balmann H R, Lutin F. Nanofiltration of glucose and sodium lactate solutions variations of retention between single- and mixedsolute solutions[J]. J Membr. Sci., 2005,258: 123~132

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