Chemical composition and antimicrobial activity of Boswellia serrata oleo-gum-resin essential oil extracted by superheated steam

Oleo-gum-resin is a complex mixture of essential oils, polysaccharides, and resin acids. The objectives of the present study were to evaluate the variation in chemical components and antimicrobial activity of essential oils extracted by superheated steam at various temperatures. The optimum essentia...

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Bibliographic Details
Published in:Natural product research 2023-07, Vol.37 (14), p.2451-2456
Main Authors: Ayub, Muhammad Adnan, Hanif, Muhammad Asif, Blanchfield, Joanne, Zubair, Muhammad, Abid, Muhammad Amin, Saleh, Muhammad Tahir
Format: Article
Language:English
Subjects:
Anti-Bacterial Agents
Antifungal activity
Antifungal Agents - pharmacology
Antimicrobial activity
Boswellia - chemistry
Chemical composition
Diffusion plating
Dilution
Essential oils
Fungicides
Oils, Volatile - chemistry
p-Cymene
Polysaccharides
Resins
Resins, Plant - chemistry
Sabinene
Saccharides
Steam
Thujone
α-Pinene
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Summary:Oleo-gum-resin is a complex mixture of essential oils, polysaccharides, and resin acids. The objectives of the present study were to evaluate the variation in chemical components and antimicrobial activity of essential oils extracted by superheated steam at various temperatures. The optimum essential oil yield was obtained at the highest superheated steam temperature (210 °C). In total, twenty-one compounds were quantified by GC-MS with α-pinene as the major compound, followed by α-thujene, -verbenol, β-thujone, -cymene, -cymene, and sabinene. Antimicrobial activity was performed by disc diffusion, resazurin microtitre-plate and micro-dilution broth susceptibility assays in which essential oil extracted at 150 °C and 180 °C revealed the highest antibacterial and antifungal activity, respectively. It is concluded that superheated steam is an effective method for the isolation of essential oil from oleo-gum-resin that improves the recovery of essential oil as well as antimicrobial activity.
ISSN:1478-6419
1478-6427
DOI:10.1080/14786419.2022.2044327