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Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
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Related Experiment Video

Updated: May 26, 2026

Applications of Liquid-Chromatography Tandem Mass Spectrometry in Natural Products Research: Tropane Alkaloids as a Case Study
09:36

Applications of Liquid-Chromatography Tandem Mass Spectrometry in Natural Products Research: Tropane Alkaloids as a Case Study

Published on: March 8, 2024

Alkaloids from Papaver coreanum.

Dong-Ung Lee1, Jong Hee Park, Ludger Wessjohann

  • 1Division of Bioscience, Dongguk University, Gyeongju 780-714, Republic of Korea.

Natural Product Communications
|January 10, 2012
PubMed
Summary
This summary is machine-generated.

The alkaloid profile of Papaver coreanum, an endemic plant, was analyzed for the first time. Researchers identified eight alkaloids, including protopine and allocryptopine as major compounds.

Related Experiment Videos

Last Updated: May 26, 2026

Applications of Liquid-Chromatography Tandem Mass Spectrometry in Natural Products Research: Tropane Alkaloids as a Case Study
09:36

Applications of Liquid-Chromatography Tandem Mass Spectrometry in Natural Products Research: Tropane Alkaloids as a Case Study

Published on: March 8, 2024

Area of Science:

  • Phytochemistry
  • Natural Product Chemistry
  • Pharmacognosy

Background:

  • Papaver coreanum Nakai (Papaveraceae) is an endemic plant species.
  • Understanding the chemical constituents of endemic plants is crucial for biodiversity and potential applications.

Purpose of the Study:

  • To determine the alkaloid pattern of Papaver coreanum for the first time.
  • To identify and characterize the major and minor alkaloids present in the plant.

Main Methods:

  • Liquid Chromatography/Electrospray Ionization-Mass Spectrometry/Mass Spectrometry (LC/ESI-MS/MS)
  • High-resolution mass spectrometry

Main Results:

  • Eight alkaloids were identified in Papaver coreanum.
  • Protopine and allocryptopine were identified as the main alkaloid components.
  • Other identified alkaloids include norsanguinarine, sanguinarine, dihydrosanguinarine, oxysanguinarine, lincangenine, and cryptopine. Trace amounts of unknown alkaloids were also detected.

Conclusions:

  • This study provides the first comprehensive analysis of the alkaloid content in Papaver coreanum.
  • The identified alkaloid profile contributes to the chemotaxonomic understanding of the Papaveraceae family.
  • Further research is needed to elucidate the structures of the unknown trace alkaloids.