1. Laboratory of Mathematical Chemistry, University “Prof. As. Zlatarov”, 8010 Bourgas, Bulgaria, Safety and Environmental Assurance Centre (SEAC), Unilever Colworth, Sharnbrook, Bedford MK44 1LQUK, United Kingdom, and Danish Institute for Food and Veterinary Research, 19 Mørkhøj Bygade, DK-2860 Søborg, Denmark