摘要
目的:考察不同条件下白术挥发油中苍术酮的稳定性。方法:采用高效液相色谱法测定挥发油中苍术酮及白术内酯含量,以苍术酮及白术内酯的相对含量作为衡量苍术酮变化的指标。结果:白术挥发油纯品中的苍术酮在室温日光条件下,第6天分解率达到12%以上,在室温避光条件下基本不变。挥发油吐温-80溶液在室温避光条件下,苍术酮在第5天的分解率达到30%以上,在冷冻避光条件下基本不变。挥发油中的苍术酮在人工胃液及人工肠液中均不稳定,其变化符合一级动力学过程。结论:在不同条件下,白术挥发油中苍术酮的稳定性不同,稀溶液中48小时内比较稳定,苍术酮较其纯品稳定性好。
This study was aimed to explore the stability of atractylon in volatile oil of A tractylodes macrocephala Koidz. under various conditions. High performance liquid chromatography （HPLC） method was used to determine the atractylon content and atractylenolide content of volatile oils. And the relative percentages of atractylone and a-tractylenolide were selected as indexes to measure the change of atractylon. The results showed that the atractylon in atractylodes volatile oil was unstable with the rate of atractylon decomp osition up to 12% in natural conditions on the 6th day. The condition was almost not changed at room temperature and avoiding light. Atractylodes volatile oil in tween-80 solution was unstable with the rate of atractylon decomposition up to 30% at room temperature and avoiding light on the 5th day. The condition was almost not changed in the freezing temperature and avoiding light. The atracty-lon in volatile oil in artificial gastric juice and artificial intestinal juice were unstable, which were in conformity with the first order kinetics. It was concluded that the stability of atractylon of volatile oil was different. The atractylon of volatile oil was relatively stable in dilute solution within 48 hours. The atractylon in volatile oil was stable than its pure solution.
出处
《世界科学技术-中医药现代化》
北大核心
2014年第1期193-198,共6页
Modernization of Traditional Chinese Medicine and Materia Medica-World Science and Technology
基金
科学技术部国家重点基础研究计划("973计划")项目(2012CB107333):基于中药性(气)味科学内涵假说的利水功效中药的药性理论研究
负责人:匡海学
