LOWERING OF POLYCYCLIC AROMATIC-HYDROCARBONS CONCENTRATION IN A LIQUID SMOKE FLAVOR BY SORPTION INTO POLYETHYLENE PACKAGING

The liquid smoke flavour UTP-1 was spiked with polycyclic aromatic hyd rocarbons (PAHS) at a level of total concentration 45.6 mug/kg and fil led into bottles made of low-density polyethylene. The concentration o f PAHs was followed for 14 days. During this time the concentration of PAHs dropped roughly by two orders-from 45.6 mug/kg to 0.73 mug/kg, w hen an inverse dependence between PAHs concentration and time of stora ge was observed. As demonstrated in the experiment, the lowering of PA Hs concentration in the liquid smoke flavour UTP-1 was due to the sorp tion of PAHs on packaging material, in which PAHs were found at the en d of the experiment.