摘要
本文通过对金不换甲醇提取、无水乙醇提取、氨性氯仿提取和酸性乙醇提取等提取方法的比较与筛选,确定溶剂用量、提取次数、pH值和提取时间为影响因素,并以L9(34)正交设计表安排试验.综合考虑各种因素,金不换总生物碱的最佳提取工艺为9倍量p=4.5 95%乙醇提取2次,每次2小时.
Extracting times, ethonal volume, pH and extracting time were screened and L9 (3^4) orthogonal test were applied. The optimal extraction conditions of Stephania delavayi Diels were as follows : refluxing and extracting with 9-fold 95 % alcohol (pH = 4.5) for two hours twice.
出处
《中央民族大学学报(自然科学版)》
2007年第2期172-175,共4页
Journal of Minzu University of China(Natural Sciences Edition)
关键词
金不换
总生物碱
正交试验
提取工艺
Stephania delavayi Diels
Total alkoloids
Orthogonal test
Pharmaceutical techonology