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:宋明明[1] 尚志春[1] 周辉 付晓雪[1] 史丽颖[1] 唐玲[1] 于大永[1] 王永奇[1]
机构地区:[1]大连大学药物研究所,辽宁大连116622 [2]广西钦州市农业机械学校,广西钦州535000
出 处:《中国实验方剂学杂志》2013年第21期150-154,共5页Chinese Journal of Experimental Traditional Medical Formulae
摘 要:目的:测定黄杞叶不同提取物中主要化学成分的含量。方法:分别以芦丁、没食子酸和齐墩果酸为对照品,采用分光光度法测定黄杞叶95%乙醇提取物及水提物中总黄酮、总多酚以及总皂苷的含量。结果:黄杞叶95%乙醇提取物中总黄酮含量为48.01%、总多酚含量为34.01%、总皂苷含量为20.91%;黄杞叶水提物中总黄酮含量为42.04%、总多酚含量为33.25%、总皂苷含量为17.84%。结论:方法简便、准确、稳定性好、重复性好,可用于黄杞中三大类化学成分的含量测定。Objective: To determine the quality of chemical compositions in the different extracts of Engelhardtia roxburghlana leaves. Method: Rutin, gallic acid and oleanolic acid were used as the control samples. Speetrophotometry was used to determine the content of total flavonoids, total polyphenol and total saponins in the 95% alcohol extract and water extract of the leaves of E. roxburghiana. Result: The 95% alcohol extract content of total flavonoids, total polyphenols and total saponins were 48.01% , 34.01% and 20.09% respectively. The content of water extract was 42.04% , 33.25% and 17.84% respectively. Conclusion: This method is simple, accurate and reliable, which could be used to determine the quality of the three major chemical compositions in E. roxburghiana.
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:18.222.175.173