Chemical composition, antioxidant, and antibacterial activities of essential oils from Etlingera brevilabrum valeton

Behnam Mahdavi, Wan Yaacob Wan Ahmad, Laily B. Din, Yook Heng Lee, Nazlina Ibrahim

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Essential oils from fresh parts of Etlingera brevilabrum Valeton (Zingiberaceae) including rhizome, stolon, stem, and leaves were hydrodistilled, and studied for their chemical composition, antioxidant, and antibacterial activity. Characterization by GC-FID and GC-MS showed monoterpene hydrocarbons dominated the oils of the leaves and stems (57.3 and 73.4%) with oxygenated monoterpenes were dominant in the stolon and rhizomes (40.4 and 53.6%). The major compounds of the rhizome oil were perilla aldehyde (19.6%) and bornyl acetate (17.6%); the stolon oil, β-pinene (30.6%) and p-cymen-7-ol (25.0%); the stem oil, δ-3-carene (43.2%) and α-thujene (17.7%); and the leaf oil, α-thujene (38.1%) and p-cymen-7-ol (8.0%). The rhizome oil showed the highest antioxidant effects with IC<inf>50</inf> = 1236.54±12.83 μg/mL in the DPPH radical scavenging activity, 22.76% inhibition in the β-carotene bleaching test at 1000 μg/mL, and IC<inf>50</inf> = 878±16.54 μg/mL in the ferrous ion chelating ability. Antibacterial activity demonstrated by disc diffusion assay showed that the rhizome, stem and leaf oils inhibited Staphylococcus aureus and MRSA but not Bacillus subtilis and Bacillus thuringiensis. For Gram negative bacteria, the rhizome oil prevented the growth of Proteus mirabilis; the stem oil inhibited Escherichia coli and Proteus vulgaris; and the leaf oil was active against E. coli, P. vulgaris, and P. mirabilis.

Original languageEnglish
Pages (from-to)22-31
Number of pages10
JournalRecords of Natural Products
Volume10
Issue number1
Publication statusPublished - 8 Jan 2015

Fingerprint

Etlingera
Volatile Oils
rhizomes
Oils
essential oils
Rhizome
leaf oils
Antioxidants
chemical composition
antioxidants
oils
Chemical analysis
stems
Proteus vulgaris
Proteus mirabilis
monoterpenoids
inhibitory concentration 50
Monoterpenes
Bacilli
bornyl acetate

Keywords

  • Antibacteria
  • Antioxidant
  • Essential oils
  • Etlingera brevilabrum
  • GC-FID and GC-MS analyses

ASJC Scopus subject areas

  • Organic Chemistry
  • Drug Discovery
  • Pharmacology
  • Plant Science

Cite this

@article{808d2a7602fa4e23bddb291cac1d623f,
title = "Chemical composition, antioxidant, and antibacterial activities of essential oils from Etlingera brevilabrum valeton",
abstract = "Essential oils from fresh parts of Etlingera brevilabrum Valeton (Zingiberaceae) including rhizome, stolon, stem, and leaves were hydrodistilled, and studied for their chemical composition, antioxidant, and antibacterial activity. Characterization by GC-FID and GC-MS showed monoterpene hydrocarbons dominated the oils of the leaves and stems (57.3 and 73.4{\%}) with oxygenated monoterpenes were dominant in the stolon and rhizomes (40.4 and 53.6{\%}). The major compounds of the rhizome oil were perilla aldehyde (19.6{\%}) and bornyl acetate (17.6{\%}); the stolon oil, β-pinene (30.6{\%}) and p-cymen-7-ol (25.0{\%}); the stem oil, δ-3-carene (43.2{\%}) and α-thujene (17.7{\%}); and the leaf oil, α-thujene (38.1{\%}) and p-cymen-7-ol (8.0{\%}). The rhizome oil showed the highest antioxidant effects with IC50 = 1236.54±12.83 μg/mL in the DPPH radical scavenging activity, 22.76{\%} inhibition in the β-carotene bleaching test at 1000 μg/mL, and IC50 = 878±16.54 μg/mL in the ferrous ion chelating ability. Antibacterial activity demonstrated by disc diffusion assay showed that the rhizome, stem and leaf oils inhibited Staphylococcus aureus and MRSA but not Bacillus subtilis and Bacillus thuringiensis. For Gram negative bacteria, the rhizome oil prevented the growth of Proteus mirabilis; the stem oil inhibited Escherichia coli and Proteus vulgaris; and the leaf oil was active against E. coli, P. vulgaris, and P. mirabilis.",
keywords = "Antibacteria, Antioxidant, Essential oils, Etlingera brevilabrum, GC-FID and GC-MS analyses",
author = "Behnam Mahdavi and {Wan Ahmad}, {Wan Yaacob} and Din, {Laily B.} and Lee, {Yook Heng} and Nazlina Ibrahim",
year = "2015",
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pages = "22--31",
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T1 - Chemical composition, antioxidant, and antibacterial activities of essential oils from Etlingera brevilabrum valeton

AU - Mahdavi, Behnam

AU - Wan Ahmad, Wan Yaacob

AU - Din, Laily B.

AU - Lee, Yook Heng

AU - Ibrahim, Nazlina

PY - 2015/1/8

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N2 - Essential oils from fresh parts of Etlingera brevilabrum Valeton (Zingiberaceae) including rhizome, stolon, stem, and leaves were hydrodistilled, and studied for their chemical composition, antioxidant, and antibacterial activity. Characterization by GC-FID and GC-MS showed monoterpene hydrocarbons dominated the oils of the leaves and stems (57.3 and 73.4%) with oxygenated monoterpenes were dominant in the stolon and rhizomes (40.4 and 53.6%). The major compounds of the rhizome oil were perilla aldehyde (19.6%) and bornyl acetate (17.6%); the stolon oil, β-pinene (30.6%) and p-cymen-7-ol (25.0%); the stem oil, δ-3-carene (43.2%) and α-thujene (17.7%); and the leaf oil, α-thujene (38.1%) and p-cymen-7-ol (8.0%). The rhizome oil showed the highest antioxidant effects with IC50 = 1236.54±12.83 μg/mL in the DPPH radical scavenging activity, 22.76% inhibition in the β-carotene bleaching test at 1000 μg/mL, and IC50 = 878±16.54 μg/mL in the ferrous ion chelating ability. Antibacterial activity demonstrated by disc diffusion assay showed that the rhizome, stem and leaf oils inhibited Staphylococcus aureus and MRSA but not Bacillus subtilis and Bacillus thuringiensis. For Gram negative bacteria, the rhizome oil prevented the growth of Proteus mirabilis; the stem oil inhibited Escherichia coli and Proteus vulgaris; and the leaf oil was active against E. coli, P. vulgaris, and P. mirabilis.

AB - Essential oils from fresh parts of Etlingera brevilabrum Valeton (Zingiberaceae) including rhizome, stolon, stem, and leaves were hydrodistilled, and studied for their chemical composition, antioxidant, and antibacterial activity. Characterization by GC-FID and GC-MS showed monoterpene hydrocarbons dominated the oils of the leaves and stems (57.3 and 73.4%) with oxygenated monoterpenes were dominant in the stolon and rhizomes (40.4 and 53.6%). The major compounds of the rhizome oil were perilla aldehyde (19.6%) and bornyl acetate (17.6%); the stolon oil, β-pinene (30.6%) and p-cymen-7-ol (25.0%); the stem oil, δ-3-carene (43.2%) and α-thujene (17.7%); and the leaf oil, α-thujene (38.1%) and p-cymen-7-ol (8.0%). The rhizome oil showed the highest antioxidant effects with IC50 = 1236.54±12.83 μg/mL in the DPPH radical scavenging activity, 22.76% inhibition in the β-carotene bleaching test at 1000 μg/mL, and IC50 = 878±16.54 μg/mL in the ferrous ion chelating ability. Antibacterial activity demonstrated by disc diffusion assay showed that the rhizome, stem and leaf oils inhibited Staphylococcus aureus and MRSA but not Bacillus subtilis and Bacillus thuringiensis. For Gram negative bacteria, the rhizome oil prevented the growth of Proteus mirabilis; the stem oil inhibited Escherichia coli and Proteus vulgaris; and the leaf oil was active against E. coli, P. vulgaris, and P. mirabilis.

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KW - Antioxidant

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