Luo Ji, Zhong Hao-mei, Xiao Kai-jun, Yuan Liang, Shi Hao
Foshan Dezhong Pharmaceutical Co Ltd, Foshan, Guangdong 528000, China.
Zhongguo Zhong Yao Za Zhi. 2008 Sep;33(17):2108-12.
Multi-stage membranes processes, including ultrafiltration and nanofiltration are used in concentration of Biyankang extracts at room temperature, and the concentrations of main active ingredient in retentions after membrane processes were determined by HPLC. The results showed that the removal rate of water is about 45%, and the cost is only one fourth of the vacuum heating method. The retention rates of buddleoside and ephedrine hydrochloride are above 80% and 90% respectively, which meet the efficient concentration and energy-saving needs. The concentration method of Biyankang with multi-stage membranes processes provides some instructive theories and experimental foundations.
多级膜过程，包括超滤和纳滤，用于在室温下浓缩鼻炎康提取物，膜过程后截留物中主要活性成分的浓度通过高效液相色谱法测定。结果表明，水的去除率约为45%，成本仅为真空加热法的四分之一。连翘苷和盐酸麻黄碱的截留率分别高于80%和90%，满足高效浓缩和节能需求。多级膜过程浓缩鼻炎康的方法提供了一些有指导意义的理论和实验基础。
