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From common to rare Zingiberaceae plants - A metabolomics study using GC-MS
Gina B Barbosa1, Nirupama S Jayasinghe2, Siria H A Natera2
1Chemistry Department, College of Arts and Sciences, Central Mindanao University, University Town, Musuan, Maramag, Bukidnon, 8710, Philippines.
Phytochemistry
|May 13, 2017
Summary
This study compared the metabolites in leaves and rhizomes of common and rare Zingiberaceae (ginger) plants. Rare ginger leaves and rhizomes show potential for new uses, with distinct chemical profiles.
Area of Science:
- Metabolomics
- Phytochemistry
- Plant Science
Background:
- Zingiberaceae (ginger) plants are widely used for medicinal and culinary purposes.
- Many Zingiberaceae species remain scientifically under-investigated, with research focused primarily on rhizomes.
- Untargeted metabolite profiling offers a comprehensive approach to explore plant chemical diversity.
Purpose of the Study:
- To compare the metabolic profiles of leaves and rhizomes from common and rare Zingiberaceae species.
- To identify potential chemical markers for differentiating Zingiberaceae species.
- To assess the potential of under-investigated Zingiberaceae plants, particularly rare species.
Main Methods:
- Untargeted metabolite profiling using Gas Chromatography-Mass Spectrometry (GC-MS).
- Analysis of six Zingiberaceae species: Zingiber officinale (ZO), Curcuma longa (CL), Etlingera elatior (EE), Amomum muricarpum (AM), Etlingera philippinensis (EP), and Hornstedtia conoidea (HC).
- Principal Component Analysis (PCA) for chemical differentiation and marker identification.
Main Results:
- Significant chemical differentiation was observed among the Zingiberaceae species.
- Leaves of AM, CL, EE, EP, and HC showed higher chlorogenic acid levels than ZO.
- Rhizomes of EP and HC had higher amino acid content than ZO; ZO generally had lower sugars and organic acids.
Conclusions:
- Metabolite profiling reveals distinct chemical profiles in Zingiberaceae leaves and rhizomes.
- Etlingera philippinensis (EP) leaves and Amomum muricarpum (AM) rhizomes show metabolic similarity to common gingers, suggesting potential for broader utilization.
- This study highlights the value of untargeted metabolomics for exploring under-investigated plants like AM, EP, and HC.
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