葛根和粉葛高效液相色谱指纹图谱及化学模式识别_李生茂
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DOIʒ10.13192/j.issn.1000-1719.2016.05.048
葛根和粉葛高效液相色谱指纹图谱及化学模式识别
李生茂1,刘琳2,谭睿3,甄汉深
4
(1.川北医学院药学院,四川南充637000;2.川北医学院附属医院内分泌科,
四川南充637000;3.西南交通大学医学院,四川成都610031;4.广西中医药大学,广西南宁530001)
摘要:目的:建立并比较葛根和粉葛的高效液相色谱(HPLC )指纹图谱,为其质量控制提供依据。方法:采用
HPLC 法,色谱柱为Kromasil C 18(4.6mm ˑ200mm ),流动相为乙腈-0.03mol /L 醋酸铵溶液(梯度洗脱),流速为0.9mL /min ,柱温为40ħ,检测波长为250nm ,进样量为20μL 。收集16批次的葛根和粉葛样品进行测定,采用《中药色谱指纹图谱相似度评价系统2004A 版》软件进行相似度评价,采用聚类分析和主成分分析对指纹图谱进行化学模式识别研究。结果:16批葛根和粉葛药材的指纹图谱有6个共有峰,经对照指认出葛根素、大豆苷、大豆苷元和染料木素的色谱峰。相似度分析结果显示葛根和粉葛的相似度较高,均在0.910以上;聚类分析将葛根和粉葛样品分别归为两类;主成分分析提取得到8个主成分,累计方差贡献率达到93.548%,前3个主成分得分投影结果与聚类分析基本一致。结论:葛根和粉葛所含化学成分既有一定的相似性,也存在一定差异,该方法可作为葛根和粉葛的质量控制及临床应用的依据。
关键词:葛根;粉葛;HPLC 指纹图谱;聚类分析;主成分分析
中图分类号:R284文献标志码:A 文章编号:1000-1719(2016)05-1034-04HPLC Fingerprint and Chemical Pattern Recognition of Pueraria lobata and Pueraria thomsonii
LI Shengmao 1,LIU Lin 2,TAN Rui 3,ZHEN Hanshen 4
(1.School of Pharmacy ,North Sichuan Medical College ,Nanchong 637000,Sichuan ,China ;2.Department of Endocrinology ,Affiliated Hospital of North Sichuan Medical College ,Nanchong 637000,Sichuan ,China ;3.Southwest Jiao Tong University ,College of Medicine ,Chengdu 610031,Sichuan ,China ;4.Guangxi University of Chinese Medicine ,Nanning 530001,Guangxi ,China )
Abstract :Objective :To establish and compare HPLC fingerprints of Pueraria lobata and Pueraria thomsonii .Methods :HPLC was used to analyze16batches of samples.The determination was performed on Kromasil C 18column with mobile phase consisted of acetonitrile -0.03mol /L ammonium acetate with gradient elution at the flow rate of 0.9mL /min.The detection wavelength was 250nm and column temperature was set at 40ħ.The sample size was 20μL.TCM fingerprint evaluation software (2004edi-tion )was used to evaluate the similarity of 16batches of samples.Hierarchical cluster analysis (HCA )and principal component analysis (PCA )were applied to chemical pattern recognition.Results :There were 6common peaks of fingerprints of Pueraria lo-bata and Pueraria thomsonii .Four components were identified as Puerarin ,Daidzin ,Daidzein and Genistein.The similarities of 16batches of samples were proved to be higher than 0.910.Sixteen batches of Pueraria lobata sample and Pueraria thomsonii ware classified into two groups (Pueraria lobata sample and Pueraria thomsonii sample )based on HCA.Eight principal components (PC )were observed via PCA and the values of 8principal components accounted for 93.548%of the total variance.The classifi-cation result according to PCA was consistent with the HCA.Conclusion :The components of Pueraria lobata and Pueraria thomso-nii are different.The method can be used for identification and quality evaluation of Pueraria lobata and Pueraria thomsonii .
Keywords :Pueraria lobata ;Pueraria thomsonii ;HPLC fingerprint ;HCA ;PCA
收稿日期:2015-12-09
基金项目:2012年四川省教育厅科研项目(12ZB216)
作者简介:李生茂(1981-),男,四川成都人,
讲师,博士,研究方向:中药药效物质基础及质量标准化研究。
通讯作者:谭睿,教授,博士,研究方向:中药、民族药及复方药效物质基
础及质量标准化研究,
E -mail :93230430@qq.com 。葛根和粉葛分别来源于豆科葛属植物野葛[
Puer-aria lobata (Willd.)ohwi ]和甘葛藤(Pueraria thomso-nii Benth.)的干燥根[1],长期以来两者均作为葛根药
材使用[2-4]
,具有解肌退热,生津止渴,透疹,升阳止
泻,通经活络,解酒毒之功效[1]
。现代研究显示,
葛根和粉葛均含有葛根素、大豆苷和大豆苷元等异黄酮类活性成分,但由于基源的不同,两者所含化学成分及药
理作用存在一定差异
[5-8]
,《中华人民共和国药典》从2005年版开始也将葛根和粉葛分别单列。目前,有关葛根和粉葛化学成分比较的研究大多采用紫外光谱法
[9-11]、红外光谱法[12]、薄层色谱法[13-14]
、高效液相色谱法
[5-6,10-11,15-19]
等对二者的总黄酮等大类成分或部分活性成分的定性或定量的对比,未能更深入对葛根和粉葛药材化学成分异同进行系统比较分析。因于此,本实验采用高效液相色谱法建立葛根和粉葛的指