The Chemical Composition and Anti-mycobacterial Activities of Trachyspermum copticum and Pelargonium graveolens Essential Oils

Author(s): Jalil Kardan-Yamchi, Mohaddese Mahboubi, Hossein Kazemian, Gholamreza Hamzelou, Mohammad M. Feizabadi*

Journal Name: Recent Patents on Anti-Infective Drug Discovery

Volume 15 , Issue 1 , 2020

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Abstract:

Background: Microbial resistance to antibiotics and their adverse effects related to these antibiotics are a matter of global public health in the 21th century. The emergence of drug-resistant strains, has gained the interest of the scientists to discover new antimicrobial agents from the essential oil of medicinal plants.

Methods: Anti-mycobacterial effects of Trachyspermum copticum and Pelargonium graveolens essential oils were determined against multi-drug resistant clinical strains of Mycobacterium tuberculosis, Mycobacterium kansasii, Mycobacterium fortuitum and standard strain of Mycobacterium tuberculosis H37Rv by a Broth micro-dilution method. Pelargonium graveolens plant named Narmada was discovered by Kulkarni R.N et al. (Patent ID, USPP12425P2) and a formulation comprising thymol obtained from Trachyspermum is useful in the treatment of drug-resistant bacterial infections (Patent ID, US6824795B2). The chemical composition of hydro-distilled essential oils was determined by GC and GC-MS.

Results: Minimum Inhibitory Concentration (MIC) values for T. copticum essential oil against tested isolates were ranged from 19.5 µg/mL to 78 µg/mL. The least minimum inhibitory concentration of P. graveolens extract against M. Kansasii and MDR-TB was 78 µg/ml.

Conclusion: The results of the present research introduced T. copticum and P. graveolens essential oils as a remarkable natural anti-mycobacterial agent, but more pharmacological studies are required to evaluate their efficacy in animal models.

Keywords: Trachyspermum copticum, Pelargonium graveolens, essential oil, antimycobacterial activity, Mycobacterium tuberculosis, chemical composition.

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Article Details

VOLUME: 15
ISSUE: 1
Year: 2020
Page: [68 - 74]
Pages: 7
DOI: 10.2174/1574891X14666191028113321

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