食品科学 ›› 2007, Vol. 28 ›› Issue (9): 449-452.

• 分析检测 • 上一篇    下一篇

红车轴草提取物中异黄酮成分的分析

 常平, 张颍, 夏开元, 金宗濂   

  1. 北京联合大学生物活性物质与功能食品北京市重点实验室; 北京中医药大学; 北京联合大学生物活性物质与功能食品北京市重点实验室 北京100083; 北京100083;
  • 出版日期:2007-09-15 发布日期:2011-11-22

Analysis of Isoflavone in Extract of Trifolium pratense L.

 CHANG  Ping, ZHANG  Ying, XIA  Kai-Yuan, JIN  Zong-Lian   

  1. 1.Beijing Laboratory of Bioactive Substances and Functional Food,Beijing Union University,Beijing 100083,China;2.Beijing University of Chinese Medicine,Beijing 100083,China
  • Online:2007-09-15 Published:2011-11-22

摘要: 目的:以高效液相色谱法对红车轴草中四种主要异黄酮物质(大豆黄素、染料木素、鹰嘴豆芽素B和鹰嘴豆芽素A)的含量进行测定。方法:高效液相色谱法的条件:反相C18柱(250mm×4.6mm),MeOH-CH3CN-H2O(3.7:1.3:5,V:V:V)为流动相,流速1.0ml/min,进样量20μl,柱温为室温,检测波长为260nm。样品前处理方法:称取一定量的红车轴草提取物样品加盐酸甲醇溶液(42:500,V:V)40ml,于85℃水浴中回流水解2h,冷却后用甲醇定容到50ml,匀后用0.45μm滤膜过滤,取滤液。结果:经高效液相色谱法测定,以保留时间定性,以峰面积定量,得出红车轴草(1#)中四种主要异黄酮物质的含量分别为:大豆黄素(0.43%)、染料木素(0.35%)、鹰嘴豆芽素B(4.79%)和鹰嘴豆芽素A(1.32%);而红车轴草(2#)中四种主要异黄酮物质的含量分别为:大豆黄素(0.60%)、染料木素(0.64%)、鹰嘴豆芽素B(9.29%)和鹰嘴豆芽素A(2.63%)。

关键词: 红车轴草, 异黄酮, 高效液相色谱

Abstract: Objective:High performance liquid chromatography(HPLC)was used for separation and determination of four isoflavone compounds(daidzein,genistein,formononetin,and biochanin A)in Trifolium pretense L.Methods:HPLC quantitated the quanitity of the four main isoflavones in Trifolium pretense L.The qualification of HPLC:C18 column(250 mm ×4.6 mm):the mobile phase MeOH-CH3CN-H2O(3.7:1.3:5,V:V:V),the flow rate 1.0 ml/min,the filling amount 20μl,the column temperature room temperature,UV-detection performed at 260 nm.Methods about treating with the sample:the sample was prepared by dissolving in 40 ml solution of the HCl methanol(42:500,V:V)at 85 ℃ hot-water for 2 hours.After the sample was cool,it was added methanol to reach the volume 50 ml in all.After the 0.45μm membrane was used to filtrate the sample and the filtrate was analyzed by HPLC.Results:According HPLC analysis,in Trifolium pretense L.(1#),the quantity of the four main isoflavones:formononetin(4.79%),and biochanin A(1.32%),daidzein(0.43%),genistein(0.35%);in Trifolium pretense L.(2#),the quantity of the four main isoflavones:daidzein(0.60%),genistein(0.64%),formononetin(9.29%),and biochanin A(2.63%).

Key words: Trifoloum pretense L., isoflavones, HPLC