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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

The Antimicrobial Activity of Extracts of the Lichen Cladonia foliacea and Its (–)-Usnic Acid, Atranorin, and Fumarprotocetraric Acid Constituents

  • Meral Yılmaz , Ayşen Özdemir Türk EMAIL logo , Turgay Tay and Merih Kıvanç

The antimicrobial activity of the chloroform, diethyl ether, acetone, petroleum ether, and ethanol extracts of the lichen Cladonia foliacea and its (-)-usnic acid, atranorin, and fumarprotocetraric acid constituents against 9 bacteria and fungi has been investigated. The extracts and pure compounds alone were found active against the same bacteria and the same yeasts. Bacillus cereus, Bacillus subtilis, Staphylococcus aureus, Streptococcus faecalis, Proteus vulgaris, Listeria monocytogenes, Aeromonas hydrophila, Candida albicans, and Candida glabrata growth were inhibited. In addition, the MICs of the extracts, (-)-usnic acid, atranorin and fumarprotocetraric acid were determined.

Received: 2003-8-8
Revised: 2003-9-17
Published Online: 2014-6-2
Published in Print: 2004-4-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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