1. Laboratory of Chemistry & Biochemistry; Department of Agricultural Development Democritus; University of Thrace; 193, Pantazidou str 68200 N. Orestiada Greece
2. Instituto de Ciencias Agrarias; CSIC; Serrano 115 28006 Madrid Spain
3. Laboratory of Synthesis of Natural Products and Bioorganic Chemistry; Institute of Nanoscience and Nanotechnology; NCSR “Demokritos”; P.O. Box 60228, GR-153 10 Ag. Paraskevi Athens Greece
4. Laboratory of Chemistry; Department of Food Science & Human Nutrition; Agricultural University of Athens; Iera Odos 75 11855 Athens Greece
5. R&D Dpt. Botanical Extracts, Kimitec; Santa Marta 13, Roquetas de Mar Almeria Spain