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中国农学通报 ›› 2023, Vol. 39 ›› Issue (29): 129-136.doi: 10.11924/j.issn.1000-6850.casb2023-0360

• 食品·营养·检测·安全 • 上一篇    下一篇

基于HPLC结合多元统计方法分析不同产地覆盆子药材中有机酸的差异

吕伯龙1(), 李国柱2()   

  1. 1 国检测试控股集团(安徽)拓维检测服务有限公司,安徽宣城 242000
    2 阿拉尔市食品药品检验所,新疆阿拉尔 843300
  • 收稿日期:2023-05-10 修回日期:2023-07-03 出版日期:2023-10-15 发布日期:2023-10-11
  • 通讯作者: 李国柱,男,1988年出生,安徽颍上人,实验师,硕士,主要从事食品和药品检验方面的工作。通信地址:843300 新疆维吾尔自治区阿拉尔市军垦大道西1205号,Tel:0997-4620221,E-mail:liguozhu1975@126.com。
  • 作者简介:

    吕伯龙,男,1989年出生,安徽宣城人,研究方向:中药材质量检测。通信地址:242000 安徽省宣城市经济技术开发区日新路18号,Tel:0563-3399304,E-mail:

Differential Analysis of Organic Acids in Different Origins of Raspberry based on HPLC Combined with Multivariate Statistical Methods

LV Bolong1(), LI Guozhu2()   

  1. 1 CTC (Anhui) Topway Testing Service Co., Ltd, Xuancheng, Anhui 242000
    2 Alar Institute for Food and Drug Control, Alar, Xinjiang 843300
  • Received:2023-05-10 Revised:2023-07-03 Published-:2023-10-15 Online:2023-10-11

摘要:

为了探讨不同产地覆盆子中8种有机酸的差异,建立HPLC同时测定8种有机酸含量的方法,以期为覆盆子的部分酸味物质提供理论依据。以同一采收期的覆盆子药材为研究对象,通过高效液相色谱法(HPLC)建立其8种有机酸组分的定量方法,并结合聚类分析(CA)、主成分分析(PCA)和正交偏最小二乘-判别分析(OPLS-DA)对其差异进行分析比较。结果表明,有机酸在浓度0.001~2.00 mg/mL范围内线性关系良好,检测限(LOD)为0.326~1.114 μg/mL,定量限(LOQ)为1.060~3.604 μg/mL,加标回收率为97.40%~101.58%,标准偏差RSD为1.23%~2.34%。该方法测定不同产地覆盆子药材中有机酸的含量存在差异,聚类分析和判别分析均能有效将部分产地根据省份进行区分,且判别分析效果更好,最终能聚为7类:浙江、安徽、江苏、福建、江西、四川和湖南。PCA结果表明,草酸、酒石酸、苹果酸、莽草酸、柠檬酸、琥珀酸和乙酸是覆盆子药材中的主要有机酸。研究首次建立了HPLC同时分析覆盆子药材中8种有机酸的含量差异,且产地来源覆盖面广,结果可靠,可用于不同产地覆盆子药材中有机酸类成分的质量评价和初步区分。

关键词: 覆盆子, 不同产地, 多元统计, 有机酸, HPLC

Abstract:

To investigate the differences of eight organic acids in raspberry from different origins, a method for measuring the content of eight organic acids at the same time by HPLC was established, in order to provide a theoretical basis for some sour substances in raspberry. The raspberry herb of the same harvesting period was taken as the research object, the quantitative methods of eight organic acid components were established by HPLC, and the differences were analyzed and compared by cluster analysis (CA), principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA). The results showed that the linear relationship of organic acids in the concentration range of 0.001-2.00 mg/mL was good, the limit of detection (LOD) were 0.326~1.114 μg/mL, the limit of quantification (LOQ) were 1.060~3.604 μg/mL, the average recovery rates were 97.40%-101.58%, and the relative standard deviation (RSD) were 1.23%-2.34%. This method determines the content of organic acids in raspberry of different origins, both cluster analysis and OPLS-DA can effectively distinguish some production areas according to provinces, and the effect of OPLS-DA is better than CA, the origins can be clustered into 7 categories according to the province: Zhejiang, Anhui, Jiangsu, Fujian, Jiangxi, Sichuan and Hunan. The PCA results showed that oxalic acid, tartaric acid, malic acid, shikimic acid, citric acid, succinic acid, and acetic acid were the main organic acids in raspberry herbs. HPLC was established to analyze the differences on the content of eight organic acids in raspberry at the first time, and the origins are wide, the results are reliable, which could be used for the quality evaluation and preliminary differentiation of organic acid components in raspberry of different origins.

Key words: raspberry, different origins, multivariate statistics, organic acids, HPLC