Authors: Antonios E Goulas Elisavet Salpea Michael G Kontominas
Publish Date: 2007/04/04
Volume: 226, Issue: 4, Pages: 915-923
Abstract
Polyvinyl chloride PVC film containing di2ethylhexyl adipate DEHA plasticizer was used to wrap sea bream Sparus aurata and rainbow trout Oncorhynchus mykiss fillet samples with and without skin After wrapping the samples were stored at 2 ± 05 °C and analyzed for DEHA content at time intervals between 5 and 360 h of contact kinetic study Determination of DEHA was performed using a direct gas chromatography GC method Statistically significant differences p 005 in migration of DEHA were observed between the two fish fillet samples the mean equilibrium migration amount of DEHA in sea bream was 293 mg/dm2 film 919 mg/kg fillet corresponding to a loss of 190 w/w DEHA from PVC film while the mean equilibrium amount of DEHA in rainbow trout was 374 mg/dm2 1176 mg/kg corresponding to a loss of 239 w/w DEHA The above values for DEHA in sea bream are very close to the limit of 3 mg/dm2 of film surface set by the EU for DEHA while the corresponding migration values for rainbow trout exceeded this limit Diffusion coefficients for DEHA in the PVC film during contact with both fish fillets were calculated and found significantly different between two fish samples Furthermore the presence of skin on the fillet decreased migration of DEHA into the fish flesh by a factor of 24–28 Based on equilibrium migration values of DEHA it is concluded that for a 60kg adult a daily consumption of 150 g rainbow trout or 200 g sea bream fillet packaged in PVC film would result in a daily intake of DEHA close to the tolerable daily intake TDI of 03 mg/kg body weight set by the EU
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