Understanding the Unique Scents and Compounds in Four Types of Angelica Plants

Jenn Hoskins
3rd January, 2025

Understanding the Unique Scents and Compounds in Four Types of Angelica Plants

Graphical Abstract from study.

Image adapted from: Ji et al. / CC BY (Source)

Key Findings

  • The study by the Chinese Academy of Agricultural Sciences analyzed the chemical profiles of four Angelica species using advanced metabolomics
  • Researchers identified 698 volatile metabolites, revealing significant differences in the chemical compositions of the species
  • The study found that specific compounds like 7-hydroxycoumarin and Z-ligustilide were more abundant in Angelica sinensis, while bornyl acetate was less prevalent
  • The chemical profiles of the plants were closely related to their evolutionary relationships, supporting traditional medicinal uses and aiding in future applications
The genus Angelica, known for its traditional medicinal uses and commercial value, has been the subject of extensive research. The Chinese Academy of Agricultural Sciences recently conducted a study to analyze the metabolomic differences among four Angelica species: Angelica sinensis, Angelica biserrata, Angelica dahurica, and Angelica keiskei[1]. This study aimed to provide a comprehensive biochemical map to aid in the exploitation, application, and development of these species as medicinal plants or health-related dietary supplements. Angelica species have a rich history in traditional medicine, particularly in the treatment of various ailments such as malaria, gynecological diseases, fever, anemia, and arthritis[2]. Essential oils (EOs) from these plants are complex mixtures of low molecular weight compounds, including terpenoids, which contribute to their specific fragrances and biological properties. These EOs have demonstrated various biological activities, including antioxidant, anti-inflammatory, antimicrobial, immunotoxic, and insecticidal properties[2]. The recent study utilized widely targeted metabolomics based on gas chromatography-tandem mass spectrometry to analyze the metabolomes of the four Angelica species. Metabolomics is the scientific study of chemical processes involving metabolites, which are the intermediates and products of metabolism. This approach allows for the comprehensive analysis of the chemical profiles of organisms. In total, 698 volatile metabolites were identified and classified into fifteen different categories. The study found that 7-hydroxycoumarin and Z-ligustilide accumulated at significantly higher levels in Angelica sinensis, while bornyl acetate showed the opposite pattern. These findings are significant as they provide insights into the specific compounds that may contribute to the medicinal properties of these plants. Previous studies have highlighted the importance of various Angelica species in traditional medicine and their potential for drug development. For instance, Angelica species have been used as anti-inflammatory, diuretic, expectorant, and diaphoretic agents, and as remedies for colds, flu, hepatitis, arthritis, and other conditions[3]. The active principles isolated from these plants include coumarins, acetylenic compounds, chalcones, sesquiterpenes, and polysaccharides, which contribute to their bioactivities such as antimicrobial, anticancer, antitumor, analgesic, anti-inflammatory, hepatoprotective, and nephroprotective effects[3]. The recent study by the Chinese Academy of Agricultural Sciences also demonstrated a high correspondence between the dendrogram of metabolite contents and the phylogenetic positions of the four species. This means that the chemical profiles of the plants are closely related to their evolutionary relationships. This finding corroborates previous phylogenetic analyses which used nuclear ribosomal DNA internal transcribed spacer sequences to infer the relationships and historical biogeography of Angelica and its allies[4]. These analyses supported the monophyly (a group consisting of an ancestor and all its descendants) of Angelica and provided insights into the dispersal and vicariance (the geographical separation of a population) events that shaped the current distribution of these species[4]. In summary, the recent metabolomic study provides a detailed biochemical map of four Angelica species, revealing significant differences in their metabolite profiles. These findings enhance our understanding of the chemical diversity within the genus and support the traditional medicinal uses of these plants. By integrating metabolomic data with phylogenetic analyses, researchers can further explore the evolutionary relationships and potential applications of Angelica species in medicine and dietary supplements.

MedicineBiochemPlant Science

References

Main Study

1) Widely targeted metabolomics analysis reveals differences in volatile metabolites among four Angelica species.

Published 2nd January, 2025

https://doi.org/10.1007/s13659-024-00485-5

Related Studies

2) A Review of the Composition of the Essential Oils and Biological Activities of Angelica Species.

https://doi.org/10.3390/scipharm85030033

3) Natural medicine: the genus Angelica.

Journal: Current medicinal chemistry, Issue: Vol 11, Issue 11, Jun 2004

4) Molecular systematics of Angelica and allied genera (Apiaceae) from the Hengduan Mountains of China based on nrDNA ITS sequences: phylogenetic affinities and biogeographic implications.

https://doi.org/10.1007/s10265-009-0238-4


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