Phytochemical study of medicinal smokes from Etlingera brevilabrum leaves

B. Mahdavi, Wan Yaacob Wan Ahmad, L. B. Din

Research output: Contribution to journalArticle

Abstract

The fresh and dried leaves of Etlingera brevilabrum were pyrolyzed and burned in a fluidized-bed reactor under atmospheric nitrogen and air, respectively, at different temperatures. The collected smoke from each experiment, which was condensed as a liquid, was analyzed using GC–MS. The chemical compositions of the smoke liquids were rich in phenolic compounds and carboxylic acids. Phenol, 2-methoxyphenol, 2,6-dimethoxyphenol, and p-cresol were the most abundant phenolic compounds. Mono-(2-ethylhexyl) phthalate and palmitic acid were the most abundant acidic compounds. The smoke liquids exhibited acceptable antioxidant activity including radical scavenging activity (RSA) and β-carotene bleaching (BCB). In the most cases, the antioxidant activity of the smoke liquids was more than those of the positive controls of BHT and α-tocopherol. The smoke liquids were found to be very active antimicrobial liquids. They prevented the growth of 14 out of 18 tested microorganisms, including Gram-positive and Gram-negative bacteria and also fungi. All the smoke liquids exhibited antifungal activities higher than that of the positive control, nystatin.

Original languageEnglish
JournalJournal of Herbal Medicine
DOIs
Publication statusAccepted/In press - 1 Jan 2018

Fingerprint

Phytochemicals
Smoke
Antioxidants
Guaiacol
Nystatin
Butylated Hydroxytoluene
Tocopherols
Palmitic Acid
Carotenoids
Carboxylic Acids
Phenol
Gram-Negative Bacteria
Gas Chromatography-Mass Spectrometry
Fungi
Nitrogen
Air
Temperature
Growth

Keywords

  • Antimicrobial activity
  • Antioxidant activity
  • Etlingerabrevilabrum
  • Medicinal smokes
  • Zingiberaceae

ASJC Scopus subject areas

  • Complementary and alternative medicine

Cite this

Phytochemical study of medicinal smokes from Etlingera brevilabrum leaves. / Mahdavi, B.; Wan Ahmad, Wan Yaacob; Din, L. B.

In: Journal of Herbal Medicine, 01.01.2018.

Research output: Contribution to journalArticle

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