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Scientists Discover Rare Compounds in Cannabis Leaves

Published on June 22, 2026, 1:26 p.m.
Scientists Discover Rare Compounds in Cannabis Leaves

Topic: Chemistry

Researchers at Stellenbosch University found 79 phenolic compounds in cannabis leaves, including 25 previously unknown ones. This discovery highlights the plant's potential for medical uses.

Cannabis is a complex plant with over 750 metabolites. Scientists have long known about its cannabinoids, which are responsible for its psychoactive effects. However, researchers at Stellenbosch University have now discovered a new group of compounds called flavoalkaloids in the leaves of cannabis plants.

These compounds were found using advanced analytical methods that combine comprehensive two-dimensional liquid chromatography with high-resolution mass spectrometry. The team analyzed three commercially grown cannabis strains from South Africa and identified 79 phenolic compounds, including 25 that had never been reported before.

The discovery is significant because flavoalkaloids are rare in nature and have potential medical uses. They can act as antioxidants, anti-inflammatories, and anti-carcinogens. The study's findings were published in the Journal of Chromatography A in 2025.

Why It Matters

This discovery is important because it highlights the potential for cannabis to be used in medicine beyond its psychoactive effects. It also shows that even parts of the plant often discarded, such as leaves, may hold valuable compounds with medical uses.

Key Facts

  • Researchers at Stellenbosch University found 79 phenolic compounds in cannabis leaves, including 25 previously unknown ones.
  • The team used advanced analytical methods to identify the compounds.
  • Flavoalkaloids are rare in nature and have potential medical uses as antioxidants, anti-inflammatories, and anti-carcinogens.
  • The study's findings were published in the Journal of Chromatography A in 2025.
  • Cannabis is a complex plant with over 750 metabolites.

Key Terms

Flavoalkaloids
A rare group of compounds found in cannabis leaves that have potential medical uses

Implications

This discovery is important because it highlights the potential for cannabis to be used in medicine beyond its psychoactive effects. It also shows that even parts of the plant often discarded, such as leaves, may hold valuable compounds with medical uses.


Source: https://www.sciencedaily.com/releases/2026/05/260501002156.htm

Journal Reference:

  1. Magriet Muller, André de Villiers. Comprehensive two-dimensional liquid chromatographic analysis of Cannabis phenolics and first evidence of flavoalkaloids in Cannabis. Journal of Chromatography A, 2025; 1754: 466023 DOI: 10.1016/j.chroma.2025.466023

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