1. Department of Chemistry, Section of Organic Chemistry and Biochemistry; University of Ioannina; 45110 Ioannina Greece
2. Centre de Recerca en Sanitat Animal (CReSA); UAB Campus de la Universitat Autónoma de Barcelona; 08193 Bellaterra Barcelona Spain
3. Institut de Recerca i Tecnologia Agroalimentàries (IRTA); Barcelona Spain
4. Georg-Speyer-Haus; Institute for Biomedical Research; Paul-Ehrlich-Strasse 42-44 60596 Frankfurt Germany