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Molecular, Chemical and Microscopic Analysis of Medicinal Plant (Cymbopogon distans) from Its Adulterants

Received: 28 March 2018    Accepted: 27 April 2018    Published: 21 May 2018
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Abstract

Morphological resemblance among Cymbopogon distans species and their adulterants which are procured from different markets in the form of dried or fresh plant tissues represents a serious problem for quality and safety of medicinal plants, as it supports frauds for substitution. In order to assure the quality control of C. distans species, DNA barcode, microscopic identification and High Performance liquid chromatography (HPLC) fingerprint were synergistically used to discriminate C. distans from its adulterants. In this work, the internal transcribed spacer 2 (ITS2) was chosen for distinguishing C. distans from their usual adulterants from 5 provinces of China. Sequences were obtained after removal of the 5.8S and 28S sections. A multiple sequence alignment was finalized. Results exhibited that ITS2 performed well, with 100% of genera being accurately distinguished. Additionally, finding indicates that the upper epidermis in leaf of C. distans was composed of one layer of wide elongated cells called Bulliform cells whereas in C. distans the upper epidermis consist of one layer cell, thus these feactures are very important for the anatomy identification. The HPLC fingerprint method was also developed, the similarities of 6 batches of C. distans samples were all more than 0.93, indicating that the samples from different geographical origins shared similar HPLC fingerprints. And the similarities between C. distans, C. citratus, C. flexuosus and Imperata cylindrica were all less than 0.93, suggesting that there was significance difference between C. distans and its adulterants. Finally, it was concluded that the DNA barcode, HPLC fingerprint and microscopic methods could effectively authenticate the quality of C. distans from their adulterants and can provide accurate and reliable information to tackle the complex quality issue of C. distans in markets. This is the first report of detailed analysis of the C. distans for effective quality and safety.

Published in Journal of Diseases and Medicinal Plants (Volume 4, Issue 2)
DOI 10.11648/j.jdmp.20180402.11
Page(s) 35-47
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Internal Transcribed Spacer (ITS2), DNA barcode, Cymbopogon distans, High Performance Liquid Chromatography (HPLC)

References
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    Diana Kavidia Muyembe, Dou Rong Kun, Song Zhilei, Fang Jin, Xue Yuan, et al. (2018). Molecular, Chemical and Microscopic Analysis of Medicinal Plant (Cymbopogon distans) from Its Adulterants. Journal of Diseases and Medicinal Plants, 4(2), 35-47. https://doi.org/10.11648/j.jdmp.20180402.11

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    ACS Style

    Diana Kavidia Muyembe; Dou Rong Kun; Song Zhilei; Fang Jin; Xue Yuan, et al. Molecular, Chemical and Microscopic Analysis of Medicinal Plant (Cymbopogon distans) from Its Adulterants. J. Dis. Med. Plants 2018, 4(2), 35-47. doi: 10.11648/j.jdmp.20180402.11

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    AMA Style

    Diana Kavidia Muyembe, Dou Rong Kun, Song Zhilei, Fang Jin, Xue Yuan, et al. Molecular, Chemical and Microscopic Analysis of Medicinal Plant (Cymbopogon distans) from Its Adulterants. J Dis Med Plants. 2018;4(2):35-47. doi: 10.11648/j.jdmp.20180402.11

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  • @article{10.11648/j.jdmp.20180402.11,
      author = {Diana Kavidia Muyembe and Dou Rong Kun and Song Zhilei and Fang Jin and Xue Yuan and Piao Yang and Zou Jinjing and Mao Can Quan},
      title = {Molecular, Chemical and Microscopic Analysis of Medicinal Plant (Cymbopogon distans) from Its Adulterants},
      journal = {Journal of Diseases and Medicinal Plants},
      volume = {4},
      number = {2},
      pages = {35-47},
      doi = {10.11648/j.jdmp.20180402.11},
      url = {https://doi.org/10.11648/j.jdmp.20180402.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jdmp.20180402.11},
      abstract = {Morphological resemblance among Cymbopogon distans species and their adulterants which are procured from different markets in the form of dried or fresh plant tissues represents a serious problem for quality and safety of medicinal plants, as it supports frauds for substitution. In order to assure the quality control of C. distans species, DNA barcode, microscopic identification and High Performance liquid chromatography (HPLC) fingerprint were synergistically used to discriminate C. distans from its adulterants. In this work, the internal transcribed spacer 2 (ITS2) was chosen for distinguishing C. distans from their usual adulterants from 5 provinces of China. Sequences were obtained after removal of the 5.8S and 28S sections. A multiple sequence alignment was finalized. Results exhibited that ITS2 performed well, with 100% of genera being accurately distinguished. Additionally, finding indicates that the upper epidermis in leaf of C. distans was composed of one layer of wide elongated cells called Bulliform cells whereas in C. distans the upper epidermis consist of one layer cell, thus these feactures are very important for the anatomy identification. The HPLC fingerprint method was also developed, the similarities of 6 batches of C. distans samples were all more than 0.93, indicating that the samples from different geographical origins shared similar HPLC fingerprints. And the similarities between C. distans, C. citratus, C. flexuosus and Imperata cylindrica were all less than 0.93, suggesting that there was significance difference between C. distans and its adulterants. Finally, it was concluded that the DNA barcode, HPLC fingerprint and microscopic methods could effectively authenticate the quality of C. distans from their adulterants and can provide accurate and reliable information to tackle the complex quality issue of C. distans in markets. This is the first report of detailed analysis of the C. distans for effective quality and safety.},
     year = {2018}
    }
    

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  • TY  - JOUR
    T1  - Molecular, Chemical and Microscopic Analysis of Medicinal Plant (Cymbopogon distans) from Its Adulterants
    AU  - Diana Kavidia Muyembe
    AU  - Dou Rong Kun
    AU  - Song Zhilei
    AU  - Fang Jin
    AU  - Xue Yuan
    AU  - Piao Yang
    AU  - Zou Jinjing
    AU  - Mao Can Quan
    Y1  - 2018/05/21
    PY  - 2018
    N1  - https://doi.org/10.11648/j.jdmp.20180402.11
    DO  - 10.11648/j.jdmp.20180402.11
    T2  - Journal of Diseases and Medicinal Plants
    JF  - Journal of Diseases and Medicinal Plants
    JO  - Journal of Diseases and Medicinal Plants
    SP  - 35
    EP  - 47
    PB  - Science Publishing Group
    SN  - 2469-8210
    UR  - https://doi.org/10.11648/j.jdmp.20180402.11
    AB  - Morphological resemblance among Cymbopogon distans species and their adulterants which are procured from different markets in the form of dried or fresh plant tissues represents a serious problem for quality and safety of medicinal plants, as it supports frauds for substitution. In order to assure the quality control of C. distans species, DNA barcode, microscopic identification and High Performance liquid chromatography (HPLC) fingerprint were synergistically used to discriminate C. distans from its adulterants. In this work, the internal transcribed spacer 2 (ITS2) was chosen for distinguishing C. distans from their usual adulterants from 5 provinces of China. Sequences were obtained after removal of the 5.8S and 28S sections. A multiple sequence alignment was finalized. Results exhibited that ITS2 performed well, with 100% of genera being accurately distinguished. Additionally, finding indicates that the upper epidermis in leaf of C. distans was composed of one layer of wide elongated cells called Bulliform cells whereas in C. distans the upper epidermis consist of one layer cell, thus these feactures are very important for the anatomy identification. The HPLC fingerprint method was also developed, the similarities of 6 batches of C. distans samples were all more than 0.93, indicating that the samples from different geographical origins shared similar HPLC fingerprints. And the similarities between C. distans, C. citratus, C. flexuosus and Imperata cylindrica were all less than 0.93, suggesting that there was significance difference between C. distans and its adulterants. Finally, it was concluded that the DNA barcode, HPLC fingerprint and microscopic methods could effectively authenticate the quality of C. distans from their adulterants and can provide accurate and reliable information to tackle the complex quality issue of C. distans in markets. This is the first report of detailed analysis of the C. distans for effective quality and safety.
    VL  - 4
    IS  - 2
    ER  - 

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Author Information
  • School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, China

  • School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, China

  • School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, China

  • School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, China

  • School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, China

  • School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, China

  • School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, China

  • School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, China

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