1. Department of Biology & Center for Environmental & Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal
2. Department of Chemistry & Organic Chemistry, Natural Products & Food Stuffs Research Unit (QOPNA), University of Aveiro, 3810-193 Aveiro, Portugal
3. Department of Chemistry & QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
4. Department of Organic & Macromolecular Chemistry, Ghent University, B-9000 Gent, Belgium