Chionanthus virginicus L.: Phytochemical analysis and quality control of herbal drug and herbal preparations

  • Boyer L
  • Baghdikian B
  • Bun S
 et al. 
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Abstract

Root barks of Chionanthus virginicus L. are used in homeopathic medicines in the treatment of icterus and hepatitis. The objective of this study is to identify novel secoiridoids and lignans and to develop a simple and reliable HPLC method for the determination of oleuropein, phillyrin, total secoiridoids and total lignans for quality control and stability studies of C. virginicus herbal drug and preparations. Secoiridoids and lignans were purified by preparative HPLC. Compounds previously described were identified by HPLC according to their retention times and UV spectra. Structures of new compounds were determined by NMR. Two compounds namely excelside B and acetoxypinoresinol-4″-O-β-D-glucoside are described for the first time in the drug. HPLC separation was performed on Symmetry C18 (Waters) by gradient elution using acetonitrile and 0.2% aqueous phosphoric acid. The method was validated for specificity, linearity, precision, accuracy, limits of detection and quantification for simultaneous determination of secoiridoids and lignans in herbal drug and herbal preparations as mother tinctures. The proposed HPLC method is linear in the range studied (r 2 ≥ 0.9989) for all the analytes. The method is precise with intra- and inter-day variations of less than 4%. The mean recoveries of the analytes range from 99.65 to 102.81%. The method is successfully applied to the quantification of nine compounds belonging to secoiridoids and lignans and for the stability studies of these compounds. The study allowed completing the phytochemical knowledge of C. virginicus. This simple developed assay could be used as tools for routine quality control of C. virginicus herbal drug and herbal medicinal products.

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Authors

  • Laurent Boyer

  • Béatrice Baghdikian

  • Sok-Siya Bun

  • Khalil Taoubi

  • Ana Diaz-Lanza

  • Riad Elias

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