Essential elements (Mn, Fe, Cu, Zu) in pork and duck liver paste produced in Spain

摘要

The contents of four essential elements, Mn, Fe, Cu, Zn, were determined in 152 samples of pork and duck Liver paste produced in Spain. The average concentra- Tion levels that were measured are 1.2 μg/g for Mn, 51.6 μg/g for Fe, 6.1 μg/g for Cu and 22.2 μg/g for Zn in pork liver pastes and 0.8 μμg/g for Mn, 32.3 μg/g for Fe, 2.7 μg/g for Cu and 12.9 μg/g for Zn in duck liver Pastes. The possible sources of these trace elements Were investigated: product formulation, technological Processing and packaging.