1. Molise Innovazione Scientific and Technological Park, Via De Sanctis, 86100 Campobasso, Italy.
2. Corresponding author. Phone: +39 06 51494436. Fax: +39 06 51494550. E-mail: carcea@inran.it
3. National Institute for Research on Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy.
4. DISTAAM, University of Molise, Via De Sanctis, 86100 Campobasso, Italy.