Abstract: In order to verify the accuracy of AKTS-SML software in simulating the migration of organic additives from single-layer plastic film into fatty food, five kinds of plastic films were chosen, and experimental data were selected from a large number of research publications. AKTS-SML software was used to simulate the migration processes and a comparison between the experimental and simulated values was made. It was found that setting up the plastic material specific parameter AP’ value used to calculate diffusion coefficient DP through the Piringer formula had a significant influence on simulated migration values. The results of simulated migration showed that at low temperature, AP’ values of most plastic materials were closer to their mean values, whereas they were closer to their extreme high values at high temperature. As a consequence, under different migration conditions, appropriate AP’ values gave SML software simulated migration values closer to the experimental ones. In addition, the initial contents of organic additives in plastic films and the thickness of plastic films and degradation of organic additives during migration also had influences on the simulation results. By analyzing several sets of experimental data from the literature, we found that AKTS-MLS software could simulate the migration of organic additives from single-layer plastic films to food simulants well in most cases. However, when organic additives were degraded during the migration process and their initial contents in plastic films were too high, the results of AKTS-SML software simulation deviated from the experimental results. Thus, further improvement is needed.

Key words: AKTS-SML software, organic additives, plastic films, migration, mathematical simulation