On the other hand, a phenomenological model based on a resistances-in-series which was resolved through the Regula Falsi algorithm according to a routine that considers the income of the structural parameters of the system and experimental conditions in which migration testing was performed. Diffusion coefficients of 1-1076 in LOPE were ranged between 8.0E10-14 and 1.2E10-12 (m(2) s(-1)) for temperatures of 28 to 60 degrees C, respectively. The coupled effect of mass transfer and thermodynamical aspects was analyzed through the parameter Bi/K-p/Fs proposed in this work, estimated in order to identify the combined contribution of the transport rate and the availability of the migrant compound in the food phase. (C) 2011 Elsevier Ltd. All rights reserved.