Abstract:

In this study, extracts of Cetraria islandica (L.) Ach. were prepared with Ethyl acetate, Acetone, Chloroform and Ethanol and antimicrobial activities of these extracts were examined on test microorganisms as follows: Escherichia coli ATCC 11230, Enterobacter aerogenes CCM 2531, Staphylococcus aureus 6538P, Staphylococcus epidermidis, Bacillus subtilis La2114, Bacillus cereus var. mycoides, Bacillus sphaericus, Bacillus thurigiensis, Bacillus megaterium, Mycobacterium smegmatis RUT, Salmonella thyphimurium, Candida utilis La991, Candida albicans CCM314, Aspergillus flavus, Aspergillus oryzae, Aspergillus fumigatus, Trichophyton rubrum, Botrytis cineriae, Fusarium oxysporium, Streptomyces murinus ISP 5091 and Nocardia cornea IFO 14403 by Disc Diffusion Methods. As a result of study, we have found that Cetraria islandica (L.) Ach. revealed antimicrobial activity againts some Gram (+) bacteria, but had no antimicrobial activity against Gram (-) bacteria, fungi and actinomycetes used in the study.

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