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In vitro inhibition of Candida albicans growth by plant extracts and essential oils
Faculty
Science
Year:
2001
Type of Publication:
Article
Pages:
757-759
Authors:
Ezzat, SM
DOI:
10.1023/A:1012934423019
Journal:
WORLD JOURNAL OF MICROBIOLOGY \& BIOTECHNOLOGY KLUWER ACADEMIC PUBL
Volume:
17
Research Area:
Biotechnology \& Applied Microbiology
ISSN
ISI:000172385500016
Keywords :
antimicrobial, Candida albicans, essential oils, Eucalyptus occidentalis, Foeniculum vulgare Miller, Mentha piperita, plant extracts, Thuja species
Abstract:
The opportunistic Candida albicans yeast strain ATCC 10261 grows at 37 degreesC and gives germ tubes after 3 h on corn meal agar and blood plasma. It produces chlamydospores and assimilates sucrose, dextrose, galactose, maltose, trehalose and xylose among the tested carbon sources. Other growth characters were also investigated. The agar diffusion cut plug technique revealed that 200 mul of Foeniculum vulgare Miller (fennel), Mentha piperita L. (peppermint) and Citrus limon (lemon) essential oils showed inhibitory actions. Fumigation test of the three essential oils had complete inhibition on the growth. The essential oil of Eucalyptus occidentalis End1 (eucalyptus, eucalypt) had no influence on C. albicans growth by the two tests. Meanwhile, methanol extracts of both leaves and male cones of the conifer Thuja orientalis (eastern thuya) had an inhibitory influence on the growth by two tests (cut plug and filter paper disc assay). In comparative tests the antibiotics mycostatin and dermatin had an inhibitory activity on C. albicans at the concentrations of 50-80 mug per hole. Crude methanol extract of leaves of eastern thuya (10-80 mug/ml) reduced C. albicans growth and intercellular protein nitrogen on liquid media.
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