HPLC测定槐花药材不同部位芦丁和槲皮素含量
发布时间:2019-08-28 来源: 美文摘抄 点击:
摘要:目的 比较槐花不同部位(槐花、槐米及枝梗)中芦丁和槲皮素的含量。方法 采用高效液相色谱法进行测定,Ultimate XB-C18色谱柱(4.6 mm×250 mm,0.45 ?m),水-甲醇为流动相梯度洗脱,流速1 mL/min,柱温35 ℃,检测波长256 nm,进样量20 ?L。结果 芦丁含量为槐米>槐花>枝梗;槲皮素含量整体较低,且槐花>槐米>枝梗。结论 槐花各部位芦丁含量较高,且含量差别不大。槐花中的槲皮素含量明显高于槐米及其枝梗。
关键词:槐花;不同部位;芦丁;槲皮素;含量比较
DOI:10.3969/j.issn.1005-5304.2012.12.016
中图分类号:R284.1 文献标识码:A 文章编号:1005-5304(2012)12-0043-03
Content Determination of Rutin and Quercetin in Different Parts of Sophora Japonica L. Medicinal Materials by HPLC DU Yu-ran1, HE Fu-yuan1,2,3, ZHOU Yi-qun1, XIE Xiang-gui1, SHI Ji-lian1,2 (1.Department of Pharmaceutics, Hunan University of Chinese Medicine, Changsha 410208, China;2.Property and Pharmacodynamic Key Laboratory of Chinese Matria Medica, State Administration of Chinese Medicine, Hunan University of Chinese Medicine, Changsha 410208, China;3.Pharmaceutical Preparation Technology and Evaluation Laboratory of Chinese Matria Medica, Hunan University of Chinese Medicine, Changsha 410208, China)
Abstract:Objective To compare rutin and quercetin content of different parts (flower, bud and pedicel) of Sophora Japonica L.. Methods HPLC method was used with Ultimate XB-C18 column (4.6 mm×250 mm, 0.45 ?m), water and methanol as solvent system with gradient elution. The flow rate was 1 mL/min, column temperature was 35 ℃, detection wavelength was set at 256 nm, and injection volume was 20 ?L. Results The content of rutin was bud>flower>pedicel. The content of quercetin was low on the whole, and in sequence of flower>bud>pedicel. Conclusion In the different parts of Sophora Japonica L., rutin content is high with little difference. Quercetin content of flower is significantly higher than in bud and pedicel.
Key words:Sophora japonica;different parts;rutin;quercetin;comparison of content
槐花为豆科植物槐Sophora japonica L.的干燥花及花蕾,前者称“槐花”,后者称“槐米”,具有凉血止血、清肝泻火的功效[1]。现代研究表明,其黄酮类主要成分芦丁和槲皮素均具有多种药理作用[2]。近年来,随着医药工业的发展及保健品的开发,槐花作为黄酮类的提取原料,其需求量逐年递增。但因栽种局限性、生长半野生化及环保限制采收等原因使槐花产量减少[3]。市售槐花药材中除了槐花和槐米外,还含有大量的枝梗,在炮制过程中常常被作为非药用部位而除去[4]。本研究采用高效液相色谱法(HPLC)同时测定、比较分析同一来源的槐花药材中的槐花、槐米及其枝梗所含芦丁及槲皮素的含量,探讨槐花同一来源不同部位有效成分的差异性,为槐花药材的净制加
基金项目:国家自然科学基金(81173558);湖南省“十二五”重点学科中药学(1008);湖南省“十二五”重点学科药学(1007)
通讯作者:石继连,Tel:0731-88458242,E-mail:hnsjl@163. com
工、资源利用及质量标准提供依据。
1 仪器与试药
Waters高效液相色谱仪(含1525工作泵及2487检测器);Adventurer-AR1140型电子分析天平。芦丁对照品(中国药品生物制品检定所,批号100080-200707),槲皮素对照品(中国药品生物制品检定所,批号100081-200907);槐花药材购于湖南长沙高桥药材大市场,经湖南中医药大学周日宝教授鉴定为豆科植物槐Sophora japonica L.的干燥花、花蕾及其枝梗;甲醇为色谱纯,其余试剂为分析纯;液相色谱用水为超纯水(自制,0.45 ?m滤膜滤过)。
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