1. Human Nutrition Unit, Department of Public Health, University of Parma, Via Volturno 39, 43100 Parma, Italy
2. Antioxidant Research Laboratory, Unit of Human Nutrition, National Institute for Food and Nutrition Research, Via Ardeatina 546, 00178 Rome, Italy
3. Department of Biochemistry and Molecular Biology, University of Parma, Parco Area delle Scienze 23/A, 43100 Parma, Italy
4. Department of Inorganic, Physical and Analytical Chemistry, University of Parma, Parco Area delle Scienze 17/A, 43100 Parma, Italy