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The husks and fruits of  Zanthoxylum  species (Rutaceae) are the popular pungent and spicy ingredients of foods and the traditional medicines in many countries. Three  Zanthoxylum  species,  Z .  bungeanum ,  Z .  schinifolium , and  Z .  piperitum , are distributed and intermixed with each other as “Zanthoxyli Pericarpium” in Korean markets. In the present study, we analyzed the ethyl acetate-soluble and nonpolar fractions of  Zanthoxylum  samples by  1 H NMR spectrometry and performed a multivariate analysis for finding the discriminant markers between three species. Xanthoxylin was identified as the metabolic marker for the discrimination of  Zanthoxylum  species and quantified by the qNMR approach.

The Rapid Discrimination and Quality Assessment of Three Zanthoxylum Species Using 1H NMR Spectrometry

The Rapid Discrimination and Quality Assessment of Three Zanthoxylum Species Using ¹H NMR Spectrometry