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土茯苓中8个成分的含量测定及化学计量学分析                                                      Δ



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          邹惠亮 ,王新财 ,陈 柯 ,崔 虹 ,孟令杰 ,刘百联 ,陈 敏 (1.湖州市食品药品检验研究院,浙江 湖州
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          313000;2.遵义医科大学生命科学研究院,贵州 遵义 563000;3.暨南大学药学院中药及天然药物研究所,
          广州 510632)
          中图分类号  R917;R284.1      文献标志码  A      文章编号  1001-0408(2024)19-2378-05
          DOI  10.6039/j.issn.1001-0408.2024.19.10
          摘   要  目的  为土茯苓药材的质量控制提供依据。方法  采用超高效液相色谱法同时测定不同产地20批(编号S1~S20)土茯苓
          中5-O-咖啡酰基莽草酸、新落新妇苷、落新妇苷、新异落新妇苷、异落新妇苷、黄杞苷、白藜芦醇、异黄杞苷的含量。采用化学计量
          学方法对20批土茯苓样品进行评价,并筛选影响土茯苓质量的差异标志物。结果  所测8个成分在各自检测质量浓度范围内线性
          关系良好(r≥0.999 6);精密度、重复性和稳定性(24 h)试验的 RSD 均小于 2.00%(n=6);平均加样回收率为 97.60%~106.40%,
          RSD均小于2.00%(n=6)。聚类分析结果显示,浙江产(S1~S5)和江西产(S6~S10)样品聚为一类,湖南产(S11~S15)样品聚为
          一类,云南产(S16~S20)样品聚为一类;主成分分析结果显示,前2个主成分可反映土茯苓中8个成分85.60%的信息量;偏最小二
          乘-判别分析结果显示,5-O-咖啡酰基莽草酸、落新妇苷、异落新妇苷和新落新妇苷的变量重要性投影值均大于1。结论  不同产地
          土茯苓中上述8个成分含量存在差异,5-O-咖啡酰基莽草酸、落新妇苷、异落新妇苷和新落新妇苷可能是影响土茯苓质量的差异
          标志物。
          关键词  土茯苓;化学计量学;含量测定;超高效液相色谱法;5-O-咖啡酰基莽草酸;落新妇苷;异落新妇苷;新落新妇苷

          Content determination and chemometric analysis of 8 components in Smilax glabra
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          ZOU Huiliang ,WANG Xincai ,CHEN Ke ,CUI Hong ,MENG Lingjie ,LIU Bailian ,CHEN Min(1.  Huzhou
          Institute  for  Food  and  Drug  Control,  Zhejiang  Huzhou  313000,  China;2.  Institute  of  Life  Sciences,  Zunyi
          Medical  University,  Guizhou  Zunyi  563000,  China;3.  Institute  of  Traditional  Chinese  Medicine  and  Natural
          Products, College of Pharmacy, Jinan University, Guangzhou 510632, China)
          ABSTRACT    OBJECTIVE To provide reference for Smilax glabra quality control. METHODS UPLC method was established to
          simultaneously  determine  the  contents  of  5-O-caffeoylshikimic  acid,  neoastilbin,  astilbin,  neoisoastilbin,  isoastilbin,  engelitin,
          resveratrol  and  isoengelitin  in  20  batches  of  S.  glabra  from  different  areas (No.  S1-S20).  The  quality  evaluation  of  20  batches  of
          samples  was  performed  by  chemometrics;  the  differential  biomarkers  that  affected  the  quality  of  S.  glabra  were  screened.
          RESULTS  The  measured  8  components  had  good  linear  relationship  within  the  range  of  measured  concentration (r≥0.999  6).
          RSDs  of  precision,  repeatability  and  stability  tests (24  h)  were  all  lower  than  2.00% (n=6).  The  average  recoveries  varied
          between  97.60%  and  106.40% (RSDs  were  all  lower  than  2.00%,  n=6).  Cluster  analysis  showed  that  the  samples  produced  in
          Zhejiang (S1-S5)  and  Jiangxi (S6-S10)  were  clustered  into  one  category;  the  samples  produced  in  Hunan (S11-S15)  were
          clustered  into  one  category;  the  samples  produced  in  Yunnan (S16-S20)  were  clustered  into  one  category.  Principal  component
          analysis  showed  that  the  first  two  principal  components  could  represent  85.60%  information  of  8  components  in  S.  glabra.  Partial
          least  squares-discriminant  analysis  showed  that  variable  importance  projection  values  of  5-O-caffeoylshikimic  acid,  astilbin,
          isoastilbin  and  neoastilbin  were  all  greater  than  1.  CONCLUSIONS  There  are  differences  in  the  contents  of  the  above  8
          components  in  S.  glabra  from  different  origins;  5-O-caffeoylshikimic  acid,  astilbin,  isoastilbin  and  neoastilbin  may  be  differential
          markers affecting the quality of S. glabra.
          KEYWORDS     Smilax  glabra;  chemometrics;  content  determination;  UPLC;  5-O-caffeoylshikimic  acid;  astilbin;  isoastilbin;

          neoastilbin


              Δ 基金项目 湖州市科技计划项目(No.2020GZ12)                       土茯苓为百合科菝葜属植物光叶菝葜 Smilax gla‐
             *第一作者 主管中药师。研究方向:药品检验与质量控制。
                                                              bra Roxb. 的干燥根茎,具有除湿、解毒、通利关节的功
          E-mail:zouhuiliang@163.com
                                                                [1]
                                                                                                           [2]
                                                              效 。土茯苓主产于我国长江流域以南,为常用药物 。
              # 通信作者 副主任中药师。研究方向:药品检验与质量控制。
          E-mail:358162468@qq.com                             现代药理学研究表明,土茯苓具有抗炎、镇痛、抗氧化、
          · 2378 ·    China Pharmacy  2024 Vol. 35  No. 19                            中国药房  2024年第35卷第19期
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