1. Mountain Research Centre, Portugal.
2. Grupo de Investigación en Polifenoles (GIP-USAL), Facultad de Farmacia, Universidad de Salamanca, Spain
3. Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Volos, Greece
4. Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Lemesos, Cyprus
5. University of the Peloponnese, Department of Agriculture, Kalamata, Greece