Purification of xylooligosaccharides from bamboo with non-organic solvent to prepare food grade functional sugars
Purification of xylooligosaccharides from bamboo with non-organic solvent to prepare food grade functional sugars
复制标题
非有机溶剂纯化竹低聚木糖制备食品级功能糖
DOI：
10.1016/j.rechem.2021.100153
复制
发表时间：
2021-01-01
影响因子：
2.3
通讯作者：
Lin, Lu
中科院分区：
文献类型：
--
作者：
Jiang, Yetao;Wang, Xiaoyu;Lin, Lu
食品级低聚木糖（XOS）具有很高的应用价值，但目前报道的XOS纯化方法大多采用有机溶剂，存在溶剂用量大、溶剂残留、溶剂回收困难等问题。此外，虽然有许多报道的分离和纯化方法，但缺乏对每个具体处理步骤的定量分析，如糖损失率，脱色率，蛋白质去除率和脱盐率。因此，本研究采用非有机溶剂法从竹材中提纯低聚木糖，制备食品级功能糖。并对各分离步骤进行了定量分析和优化，对指导实际生产具有重要意义。通过活性炭吸附、离子交换和膜过滤等综合处理，可从竹材中获得食品级低聚木糖，得率为7.5%，纯度为92.3%，总糖含量高达98.9%。
Food grade xylooligosaccharides (XOS) have a high application value, but most of the reported purification methods of XOS use organic solvents, which has significant problems such as large amount of solvent, residual solvent, and difficulty in solvent recovery. In addition, although there are many reported methods of separation and purification, quantitative analysis is lacking for each specific treatment step, such as sugar loss rate, decolorization rate, protein removal rate, and desalination rate. Therefore, purification of XOS from bamboo with non-organic solvent to prepare food grade functional sugars was presented by this study. What's more, quantitative analysis and optimization was made for each step of separation, which was of great significance for guiding the actual production. Overall, through activated carbon adsorption, ion exchange and membrane filtration comprehensive treatments, food grade XOS were obtained from bamboo with 7.5% yield, a purity of 92.3%, and a total sugar proportion as high as 98.9%.