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KMID : 0616120090400040357
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Korean Journal of Pharmacognosy
2009 Volume.40 No. 4 p.357 ~ p.364
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Effects of Citronellol and Thymol on Cell Membrane Composition of Candida albicans
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Lim Sook
Shin Seung-Won
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Abstract
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Phospholipids are crucially important in a cell membrane function and could thereby influence antibiotic susceptibility.
In order to investigate the antifungal mechanism the total lipid was extracted from C. albicans treated with citronellol
or thymol in concentration of their minimum inhibiting concentration and the changes in phospholipids composition were analyzed using ketoconazole as control. The cell growth and total lipid synthesis in cell walls of C. albicans were inhibited by treatment with citronellol. The levels of total lipids were decreased by 35.85% compared to the control. They also showed a significant decrease in the contents of phospholipid, phosphatidylcholine(PC), phosphatidyl ethanolamine(PE) and phosphatidylinositol(PI). As the result of GC assay for total fatty acid methyl esters of PC, PE and PI in C. albicans treated with citronellol, it was found that the major fatty acid composed of three phospholipid were palmitic acid, stearic acid and oleic acid. Moreover, the pattern of the fatty acid compositions of PC, PE and PI were changed by the oil. Based on the results, the anti-Candida mechanism of citronellol or thymol might be closely associated with disrupting the permeability barriers of the fungal cell wall composition or construction.
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KEYWORD
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Candida albicans, cell membrane, citronellol, thymol, mechanism
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