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Related Experiment Video

Updated: Nov 26, 2025

Lignin Down-regulation of Zea mays via dsRNAi and Klason Lignin Analysis
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Two new lignans from Zanthoxylum armatum.

Yan Sun1, Qing-Hong Zeng1, Hui-Qiang Lu1,2

  • 1College of Pharmaceutical Sciences, Southwest University, Chongqing, P.R. China.

Natural Product Research
|December 8, 2020
PubMed
Summary
This summary is machine-generated.

The peels of Zanthoxylum armatum contain bioactive compounds. Chemical analysis revealed two new lignans, zanthlignans A and B, and three known lignans with potential anti-inflammatory and anti-microbial properties.

Keywords:
LignanZanthlignans A and BZanthoxylum armatum

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Area of Science:

  • Natural Product Chemistry
  • Pharmacognosy
  • Organic Chemistry

Background:

  • Zanthoxylum armatum peels exhibit desirable flavor and possess significant bioactivities, including anti-inflammatory, anti-microbial, and anti-tumor properties.
  • Lignans are a diverse class of phenolic compounds known for their wide range of biological effects.

Purpose of the Study:

  • To isolate and characterize chemical constituents from the peels of Zanthoxylum armatum.
  • To identify novel lignan compounds and elucidate their structures.

Main Methods:

  • Silica gel column chromatography, ODS column chromatography, and preparative High-Performance Liquid Chromatography (HPLC) were employed for isolation.
  • Structure elucidation was performed using various spectroscopic techniques: Ultraviolet (UV), Infrared (IR), High-Resolution Electrospray Ionization Mass Spectrometry (HR-ESI-MS), Nuclear Magnetic Resonance (NMR), and Circular Dichroism (CD).

Main Results:

  • Two new lignans, designated as zanthlignans A (1) and B (2), were successfully isolated.
  • Three known lignans, (-)-asarinin (3), phylligenin (4), and planispine A (5), were also identified.
  • The structures of all isolated compounds were definitively established through comprehensive spectroscopic analysis.

Conclusions:

  • The chemical investigation of Zanthoxylum armatum peels led to the discovery of two new lignans and the identification of three known lignans.
  • These findings contribute to the understanding of the chemical diversity of Zanthoxylum species and may provide a basis for further pharmacological studies.