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    Identification of Three Kinds of Citri Reticulatae Pericarpium Based on Deoxyribonucleic Acid Barcoding and High-performance Liquid Chromatography-diode Array Detection-electrospray Ionization/Mass Spectrometry/Mass Spectrometry Combined with Chemometric Analysis

    Xiaoxue Yu1, Yafeng Zhang2, Dongmei Wang2, Lin Jiang2, Xinjun Xu2★★ Corresponding author

    1. 1Laboratory of Pharmaceutical Analysis and Quality Assessment, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
    2. 2Weinan Central Hospital, Weinan 714000, China.

    CORRESPONDENCE

    Xinjun Xu

    Weinan Central Hospital, Weinan 714000, China.

    xxj2702@sina.com

    Received: 25-12-2016; Revised: 01-02-2017; Accepted: 01-02-2017.

    Volume 14, Issue 53 · pp. 64–9 · PUBLISHED 20 February 2018 · DOI: 10.4103/pm.pm_581_16

    View on Pharmacogn. Mag. original site ↗

    ABSTRACT

    Background: Citri Reticulatae Pericarpium is the dried mature pericarp of Citrus reticulata Blanco which can be divided into “Chenpi” and “Guangchenpi.” “Guangchenpi” is the genuine Chinese medicinal material in Xinhui, Guangdong province; based on the greatest quality and least amount, it is most expensive among others. Hesperidin is used as the marker to identify Citri Reticulatae Pericarpium described in the Chinese Pharmacopoeia 2010. However, both “Chenpi” and “Guangchenpi” contain hesperidin so that it is impossible to differentiate them by measuring hesperidin. Objective: Our study aims to develop an efficient and accurate method to separate and identify “Guangchenpi” from other Citri Reticulatae Pericarpium. Materials and Methods: The genomic deoxyribonucleic acid (DNA) of all the materials was extracted and then the internal transcribed spacer 2 was amplified, sequenced, aligned, and analyzed. The secondary structures were created in terms of the database and website established by Jörg Schultz et al. High-performance liquid chromatography-diode array detection-electrospray Ionization/mass spectrometry (HPLC-DAD-ESI-MS)/MS coupled with chemometric analysis was applied to compare the differences in chemical profiles of the three kinds of Citri Reticulatae Pericarpium. Results: A total of 22 samples were classified into three groups. The results of DNA barcoding were in accordance with principal component analysis and hierarchical cluster analysis. Eight compounds were deduced from HPLC-DAD-ESI-MS/MS. Conclusions: This method is a reliable and effective tool to differentiate the three Citri Reticulatae Pericarpium.

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      Yu, X., Zhang, Y., Wang, D., Jiang, L., & Xu, X. (2018). Identification of Three Kinds of Citri Reticulatae Pericarpium Based on Deoxyribonucleic Acid Barcoding and High-performance Liquid Chromatography-diode Array Detection-electrospray Ionization/Mass Spectrometry/Mass Spectrometry Combined with Chemometric Analysis. Pharmacognosy Magazine, 14(53), 64–9. https://doi.org/10.4103/pm.pm_581_16