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指纹图谱结合化学计量法对葛根抗氧化活性部位的药效物质筛
选 Δ
2
2
2 #a
2
1,2 #b
2
庞会娜 1,2* ,范 琳 ,肖凤琴 ,于 倩 ,王海东 ,沈颖昕 ,韩荣欣 ,严铭铭 ,邵 帅 (1.长春中医药大学药
2
1,2
学院,长春 130117;2.吉林省中药保健食品科技创新中心,长春 130117)
中图分类号 R284.1 文献标志码 A 文章编号 1001-0408(2021)07-0839-06
DOI 10.6039/j.issn.1001-0408.2021.07.12
摘 要 目的:筛选葛根抗氧化活性部位的药效物质。方法:制备20批葛根抗氧化活性部位样品(S1~S20)。采用高效液相色谱
法(HPLC)法测定,色谱柱为 SepaxBio-C18,柱温为 25 ℃,检测波长为 250 nm,流动相为甲醇-水(梯度洗脱),流速为 0.6 mL/min。
采用《中药色谱指纹图谱相似度评价系统》(2012版)建立20批葛根抗氧化活性部位的HPLC指纹图谱并进行共有峰指认。结合
聚类分析法、主成分分析(PCA)法和正交偏最小二乘法判别分析(OPLS-DA)法,筛选葛根抗氧化活性部位的药效物质。结果:20
批葛根抗氧化活性部位 HPLC 指纹图谱共有 18 个共有峰,相似度均大于 0.99。共指认了 8 个共有峰,分别为 3′-羟基葛根素(峰
2)、葛根素(峰3)、3′-甲氧基葛根素(峰4)、大豆苷(峰5)、染料木苷(峰7)、芒柄花苷(峰11)、大豆苷元(峰13)、染料木素(峰16);经
聚类分析、PCA法分析发现,样品S1、S3、S4、S6、S8、S18、S19聚为一类,样品S2、S5、S7、S9~S17、S20聚为一类,对主成分1影响较
大的有峰2、峰3、峰10、峰11、峰13,对主成分2影响较大有峰8、峰9;经OPLS-DA分析发现,峰4、峰3、峰2、峰16、峰13、峰11对葛
根抗氧化活性部位质量的影响较大。结论:本研究建立了葛根抗氧化活性部位的HPLC指纹图谱,指认了8个成分,其中葛根素、
3'-羟基葛根素、大豆苷元和芒柄花苷可能为葛根抗氧化作用的药效物质基础。
关键词 葛根;抗氧化活性部位;高效液相色谱法;指纹图谱;化学计量法
Effective Component Screening in Antioxidant Active Fraction of Pueraria lobata by Fingerprint Combined
with Chemometrics
PANG Huina ,FAN Lin ,XIAO Fengqin ,YU Qian ,WANG Haidong ,SHEN Yingxin ,HAN Rongxin ,YAN
2
2
2
2
2
1,2
1,2
2
Mingming ,SHAO Shuai (1. School of Medicine,Changchun University of TCM,Changchun 130117,China;
1,2
2. Jilin Province Center for TCM Health Food Science and Technology Innovation,Changchun 130117,China)
ABSTRACT OBJECTIVE:To screen the effective component in antioxidant active fraction of Pueraria lobata. METHODS:The
antioxidant active fraction sample (S1-S20) of 20 batches of P. lobata were prepared. HPLC method was adopted. The
determination was performed on SepaxBio-C18 column with mobile phase consisted of methanol-water(gradient elution)at the flow
rate of 0.6 mL/min. The column temperature was set at 25 ℃,and detection wavelength was set at 250 nm. HPLC fingerprints of
20 batches of P. lobata were established by the Similarity Evaluation System of TCM Chromatographic Fingerprints (2012
edition),and common peaks were identified. Cluster analysis,principal component analysis(PCA)and orthogonal partial least
squares discriminant analysis(OPLS-DA)were used to screen the effective components in antioxidant active fraction of P. lobata.
RESULTS:There were 18 common peaks in HPLC fingerprints of 20 batches of antioxidant active fraction in P. lobata,and the
similarity was more than 0.99. Eight common peaks were identified,which were 3′-hydroxypuerarin(peak 2),puerarin(peak 3),
3′-methoxypuerarin(peak 4),daidzein(peak 5),genistein(peak 7),formononetin(peak 11),daidzein(peak 13)and genistein
(peak 16). The results of cluster analysis and PCA analysis showed that samples S1,S3,S4,S6,S8,S18 and S19 were clustered
into one category,and samples S2,S5,S7,S9-S17 and S20 were clustered into one category;peak 2,peak 3,peak 10,peak 11
and peak 13 had great influence on principal component 1;peak 8 and peak 9 had great influence on principal component 2.
OPLS-DA analysis showed that peak 4,peak 3,peak 2,peak 16,peak 13 and peak 11 had great influence on the quality of
antioxidant active fraction of P. lobata. CONCLUSIONS:
Δ 基金项目:吉林省科技发展计划项目(No.20180623041TC) HPLC fingerprint for active fraction of P. lobata is established
*硕士研究生。研究方向:药物化学。E-mail:1812622556@qq.
in the study and 8 components are identified;among them,
com
puerarin,3′-hydroxypuerarin,daidzein and formononetin may
#a 通信作者:教授,博士生导师,博士。研究方向:药物化学、中
be the material basis of antioxidant fraction of P. lobata.
药化学、新药及保健食品。E-mail:yanmm595@126.com
#b 通信作者:副教授,硕士生导师,博士。研究方向:药物化学、 KEYWORDS Pueraria lobata;Antioxidant fraction;HPLC;
中药化学及保健食品。E-mail:36038612@qq.com Fingerprint;Chemometrics
中国药房 2021年第32卷第7期 China Pharmacy 2021 Vol. 32 No. 7 ·839 ·