1. Faculty of Health Sciences, Department of Nutrition and Dietetics, Gümüşhane University, Gümüşhane, Turkey,
2. Department of Chemistry and Chemical Processing Technologies, Biochemistry Programme, Maçka Vocational School, Karadeniz Technical University, Trabzon, Turkey, and
3. Polo Scientifico, Laboratorio di Chimica Bioinorganica, Università degli Studi di Firenze, Florence, Italy