Why the scientific study of natural substances is important
Professor Valeria Costantino
University of Naples Federico II,
Naples, Italy

Professor Olga Gortzi
University of Thessaly, Volos, Greece

Professor Luigi Milella
University of Basilicata, Potenza, Italy

Professor Jaroslava Ovesná
Crop Research Institute, Prague, Czech Republic

Professor Carmen Rubio-Armendáriz
University of La Laguna, Tenerife, Spain

Professor Dunja Šamec
University North, Koprivnica, Croatia

Professor Giovanni Scapagnini
University of Molise, Campobasso, Italy

Professor Miguel Tato Diogo
University of Porto, Porto, Portugal

Professor Nikolay T. Tzvetkov
Bulgarian Academy of Sciences, Sofia, Bulgaria

Professor Patrícia Valentão
University of Porto, Porto, Portugal

Professor Christian Zidorn
University of Kiel, Kiel, Germany