1. Department of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
2. University of Belgrade, Faculty of Chemistry, Studentski trg 12-16, 11158 Belgrade, Serbia
3. Institute of Pharmaceutical Analysis, University of Szeged, Somogyi u. 4, 6720 Szeged, Hungary
4. Bioresource Department, National Research Institute for Chemical Technology (NARICT), Zaria, 1052, Nigeria
5. Institute of Biochemistry and Molecular Medicine, University of Bern, Bühlstrasse 28, 3012 Bern, Switzerland
6. HUN-REN-USZ Biologically Active Natural Products Research Group, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary