| 何首乌中大黄素的提取方法研究 |
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| 引用本文： | 李义平,张胜春,杨广德. 何首乌中大黄素的提取方法研究[J]. 中成药, 2004, 26(4): 271-274 |
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| 作者姓名： | 李义平 张胜春 杨广德 |
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| 作者单位： | 1. 西安交通大学天然药物研究与工程中心,陕西,西安,710061
2. 北京同源医药科技有限公司,100027 |
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| 摘 要： | 目的:建立中药何首乌中大黄素的提取方法.方法:以何首乌中大黄素为指标,用高效液相色谱法进行分析测定,系统考察不同溶剂、不同提取方式对大黄素提取率的影响,并用正交试验法进一步优选提取条件.结果:用7倍量80%乙醇回流提取2次(2h/次)的提取方法可以获得较高的大黄素提取率.结论:溶剂种类和提取方式对何首乌中大黄素的提取效率有较大影响.
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| 关 键 词： | 何首乌 大黄素 HPLC法 提取方法 |
| 文章编号： | 1001-1528(2004)04-0271-03 |
Study on the extraction methods of emodin from Radix polygoni multiflori |
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| LI Yi ping,ZHANG Sheng chun ,YANG Guang de. Study on the extraction methods of emodin from Radix polygoni multiflori[J]. Chinese Traditional Patent Medicine, 2004, 26(4): 271-274 |
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| Authors: | LI Yi ping ZHANG Sheng chun YANG Guang de |
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| Affiliation: | LI Yi ping,ZHANG Sheng chun *,YANG Guang de |
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| Abstract: | AIM: To establish an extraction method of emodin from Radix polygoni multiflori . METHODS: Emodin in Radix polygoni multiflori was taken as an evaluating marker and determined by HPLC, the effects of different solvents and extraction models on extraction ratio of the emodin were systematically investigated. And also the orthogonal test was further used to optimize extracting conditions. RESULTS: The refluent extraction with 80% alcohol as much as seven times of the medicine amount for 2hs and twice was more effective. CONCLUSION: The kinds of solvent and models of extraction have a great influence upon the extracting efficiency of emodin. |
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| Keywords: | Radix polygoni multiflori emodin HPLC extraction method |
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