摘要
目的 :用正交实验法优选半枝莲提取工艺。方法 :以浸膏得率、总黄酮和野黄芩苷提取率为评价指标 ,选择乙醇浓度 (% )、加醇量 (倍 )、提取时间 (h)为考察因素 ,利用正交试验L9(34)确定了醇提取半枝莲的工艺。结果 :最佳工艺条件为 75 %乙醇 10倍量提取 2 .0h ,共提取 2次。结论 :平均乙醇浸膏得率为 13.6 % ,总黄酮和野黄芩苷提取率分别为91.7%和 78.4 % (n =3)。
Objective:To study the optimum ethanol extraction process. Methods: The extraction rate of extractum and total flavonoids as well scutellarin was choosen as the assessment index. The optimum ethanol extraction process was selected with the orthogonal design. Results: The optimum ethanol extraction process conditions follow as: adding 10 fold of 75% ethanol, extracting for 2.0h and twice in all. Conclusion: The average extraction rate of extractum and total flavonoids as well scutellarin was 13.6%, 91.7%, 78.4%(n=3), respectively.
出处
《中成药》
CAS
CSCD
北大核心
2003年第7期530-532,共3页
Chinese Traditional Patent Medicine
基金
中国科学院兰州化物所"知识创新工程"重大基础性研究项目基金资助。
关键词
半枝莲
浸膏
总黄酮
野黄芩苷
正交试验
Scutellaria barbata
extractum
total flavonoids
scutellarin
orthogonal design
