title: Study of the partition coefficients Kp/f of seven model migrants from LDPE polymer in contact with food simulants.
abstract: This study evaluated the influence of parameters such as temperature and type of low-density polyethylene (LDPE) film on the log Kp/f values of seven model migrants in food simulants. Two different types of LDPE films contaminated by extrusion and immersion were placed in contact with three food simulants including 20% ethanol, 50% ethanol and olive oil under several time-temperature conditions. Results suggest that most log Kp/f values are little affected by these parameters in this study. In addition, the relation between log Kp/f and log Po/w was established for each food simulant and regression lines, as well as correlation coefficients, were calculated. Correlations were compared with data from real foodstuffs. Data presented in this study could be valuable in assigning certain foods to particular food simulants as well as predicting the mass transfer of potential migrants into different types of food or food simulants, avoiding tedious and expensive laboratory analysis. The results could be especially useful for regulatory agencies as well as for the food industry.
authors.affiliation: a Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Pharmacy , University of Santiago de Compostela , Santiago de Compostela , Spain.
authors.forename: Rafael
authors.initials: R
authors.lastname: Paseiro-Cerrato
authors.affiliation: b Fraunhofer Institute for Process Engineering and Packaging (IVV) , Freising , Germany.
authors.forename: Chinawat
authors.initials: C
authors.lastname: Tongchat
authors.affiliation: b Fraunhofer Institute for Process Engineering and Packaging (IVV) , Freising , Germany.
authors.forename: Roland
authors.initials: R
authors.lastname: Franz
mesh_terms: D000272:Adipates / Q000032:analysis / Q000737:chemistry; D000465:Algorithms; D000475:Alkenes / Q000032:analysis / Q000737:chemistry; D001577:Benzophenones / Q000032:analysis / Q000737:chemistry; D001583:Benzoxazoles / Q000032:analysis / Q000737:chemistry; D001628:Beverages / Q000032:analysis; D002070:Butadienes / Q000032:analysis / Q000737:chemistry; D002951:Citrates / Q000032:analysis / Q000737:chemistry; D004058:Diffusion; D005506:Food Contamination / Q000517:prevention & control*; D018857:Food Packaging; D061353:Food Storage; D007700:Kinetics; D008422:Materials Testing; D008956:Models, Chemical; D008970:Molecular Weight; D010968:Plasticizers / Q000032:analysis / Q000737:chemistry*; D020959:Polyethylene / Q000032:analysis / Q000737:chemistry*; D020058:Styrene / Q000032:analysis / Q000737:chemistry; D013696:Temperature
chemical_list: C000613825:2,2'-(2,5-thienediyl)bis(5-(2-methyl-2-propanyl)-1,3-benzoxazole; D000272:Adipates; D000475:Alkenes; D001577:Benzophenones; D001583:Benzoxazoles; D002070:Butadienes; D002951:Citrates; D010968:Plasticizers; C014953:2-acetyltributylcitrate; C013966:dioctyl adipate; D020058:Styrene; C047723:benzophenone; D020959:Polyethylene; C012939:1,4-diphenylbutadiene; C037690:1-octene
keywords: Food-contact materials; food simulants; low-density polyethylene (LDPE); migration modelling; partition coefficients; temperature