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In Vitro antimicrobial activity of Zingiber cassumunar (Plai) oil and a 5% Plai oil gel
Author(s) -
Pithayanukul P.,
Tubprasert J.,
WuthiUdomlert M.
Publication year - 2007
Publication title -
phytotherapy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.019
H-Index - 129
eISSN - 1099-1573
pISSN - 0951-418X
DOI - 10.1002/ptr.2048
Subject(s) - antimicrobial , minimum bactericidal concentration , food science , essential oil , chemistry , bacteria , microbiology and biotechnology , agar diffusion test , zingiberaceae , minimum inhibitory concentration , microorganism , chromatography , biology , antibacterial activity , botany , genetics , rhizome
The essential oil of Zingiber cassumunar (Plai oil) exhibits antimicrobial activity against a wide range of Gram‐positive and Gram‐negative bacteria, dermatophytes and yeasts. Dermatophytes were found to be the most susceptible microorganisms followed by yeasts, whereas bacteria were the least susceptible. The mean diameter of the inhibition zone determined by the disc diffusion screening method increased with increasing Plai oil concentration between 6.25 and 50 vol %. The minimum bactericidal concentration (MBC) determined by the broth macrodilution method ranged from 0.62 to 2.5 vol % for Plai oil and from 52 to 79 mg/mL for the 5 wt % Plai oil gel, whereas the minimum fungicidal concentration (MFC) ranged from 0.31 to 1.25 vol % for Plai oil and from 13.8 to 39.5 mg/mL for the 5% Plai oil gel. Copyright © 2006 John Wiley & Sons, Ltd.