Characterization and Identification of the Components Extracted from 28 Lichens in Tunisia by High Performance Thin-Layer Chromatography (HPTLC), Morphologic Determination of the Species and Study of the Antibiotic Effects of Usnic Acid

Karima Tabbabi^* and Tijani Karmous

Laboratory of Natural Substances, Faculty of Sciences of Bizerte, University of Carthage, Bizerte, Tunisia

^*Corresponding Author: Karima Tabbabi, Laboratory of Natural Substances, Faculty of Sciences of Bizerte, University of Carthage, Zarzouna 7021, Bizerte, Tunisia, Tel: 0021652800776 Email: