Experimental and theoretical study of bisphenol A migration from polycarbonate into regulated EU food simulant
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The specific migration of [2,2-bis(4 hydroxyphenyl) propane] from polycarbonate films into ethanol 50 % food simulant was studied. A phenomenological model based on a resistances-in-series system was resolved through the regula falsi algorithm. The diffusion–convection model was not able to describe the BPA concentration change as a function of time after 40 h, since an equilibrium condition with a plateau is not achieved. BPA generation due to PC hydrolysis produces an increase in BPA concentration. The continuous generation of BPA can be described by a generation–diffusion–convection model, where BPA generation obeys to a pseudo-zero-order reaction.
KeywordsBisphenol A Migration Diffusion coefficient Food safety
The authors thank the National Commission for Scientific and Technological Research (CONICYT), for its financial support from the National Fund for Scientific and Technological Development, FONDECYT [Grant No. 1120368], FONDEF Project D09I1043, “Propuesta Científica de Normativa para el Desarrollo de Envases Plásticos Inocuos: Una Metodología Científica Tecnológica de Apoyo a Instituciones Públicas y Privadas para Fortalecer la Estrategia Nacional de Consolidación de la Industria Alimentaria”, and for its financial support of Basal Financing Program Science and Technological Centers of Excellence [Grant No. F0807].
Conflict of interest
Compliance with Ethics Requirements
This article does not contain any studies with human or animal subjects.
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