检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:孙四海[1] 王晓莉[1] 刘芳[1] 李占芳[1]
出 处:《中国药物评价》2015年第1期8-11,共4页Chinese Journal of Drug Evaluation
摘 要:目的:优选复方槐花颗粒中槐花和侧柏叶总黄酮最佳提取工艺。方法:采用超声浸提法对复方槐花颗粒中槐花和侧柏叶总黄酮进行提取,以乙醇体积分数、超声功率、超声时间和料液比为考察因素,通过单因素试验和正交优选,确定较优提取工艺,并与常规的热回流提取法进行比较研究。结果:超声浸提法最佳提取工艺条件为:用60%乙醇,在料液比1∶10和超声功率40 k Hz条件下超声波辅助连续提取2次,15 min/次,槐花和侧柏叶总黄酮提取率可达93.31%。结论:该工艺研究为复方槐花颗粒中槐花和侧柏叶总黄酮共提提供一种新的方法和思路,具有耗时短、能耗低、溶剂用量少和提取效率高等优势。Objective: To investigate an optimum extraction process of total flavonoids from flos sophorae and leaves of platycladus orientalis in compound granules of flos sophorae. Methods: One-factor-at-a time and orthogonal array design methods were used to optimize the conditions for ultra-wave soaking extraction of total flavonoids from flos sophorae and leaves of platycladus orientalis in the compound granules of flos sophorae,and compared with the hot reflux method. Results: The optimal conditions for extracting total flavonoids from flos sophorae and leaves of platycladus orientalis in compound granules of flos sophorae were 60% ethanol as the extraction solvent,solid /liquid ratio 1∶ 10,ultrasonic power 40 k Hz,extraction time 15 min / time,2 times,resulting in the extraction of total flavonoid rate was93. 31%. Conclusion: The method is simple and feasible,which provided an optimum extraction process of the total flavonoids from flos sophorae and leaves of platycladus orientalis in the compound granules of flos sophorae.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.28