摘要
木二糖是低聚木糖的主要组份,是目前所发现的最强的双歧因子,因其具有的营养和医用的功能特性已经供不应求。为了能够实现工业化大规模生产,采用了重复性强、稳定性高的大孔树脂色谱法进行分离纯化。以木二糖含量为指标,研究了不同流速、温度、乙醇浓度对木二糖在大孔树脂上的静态吸附与解吸性能的影响。结果表明:最佳吸附条件:流速5 BV/h,温度60℃;最佳解吸条件:洗脱液为10%乙醇溶液,洗脱流速为3 BV/h。在此条件下分离得到木二糖总纯度达到4.66%,总得率达到28.65。最终得到的木二糖纯度和含量都较低,但是在工艺生产的效益方面来看,能够获得较高的利润,产量也得到很大的提升。
Xylobiose was the main product of xylan by xylooligosccharide hydrolysis. What has come to light in this moment shows that it is super-strength bifidogenic factor. Because of its nutritional and medical property, the supply of xylobiose falls short of demand now. Taking xylobiose as the index, study the effect on the property of adsorption through different flow rate, temperature and the ethanol concentration. The result showed the optimum column condition of adsorption was： the velocity of flow was 5 BV/h, and the temperature was 25℃. The optimum adsorption stripping was that eluate was 10% ethanol, and the velocity of flow was 3 BVPa. Under this condition 4.66% xylobiose purity quotient could be got, the yield rate was 28.65. The obtaining xylobiose was seldom, but in terms of benefit much higher economical characters and increase of production could be gained.
出处
《食品工业》
北大核心
2013年第1期106-109,共4页
The Food Industry
基金
黑龙江省科技厅攻关计划项目(5040299510104)
关键词
木二糖
静态吸附
动态吸附
柱分离
xybiose
static adsorption
dynamic adsorption
column separation and purification
