Bibliographic citations
Cabrejos, G., (2019). Determinación de la migración específica del plomo en simulante a por contacto prolongado con dos envases celulósicos para alimentos [Tesis, Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/4010
Cabrejos, G., Determinación de la migración específica del plomo en simulante a por contacto prolongado con dos envases celulósicos para alimentos [Tesis]. : Universidad Nacional Agraria La Molina; 2019. https://hdl.handle.net/20.500.12996/4010
@misc{renati/242834,
title = "Determinación de la migración específica del plomo en simulante a por contacto prolongado con dos envases celulósicos para alimentos",
author = "Cabrejos Hurtado, Gerson Martín",
publisher = "Universidad Nacional Agraria La Molina",
year = "2019"
}
The objective of this research was to determine the specific migration of lead from two samples of cellulose containers manufactured in Perú to simulant A, under conditions of prolonged contact and at a temperature of 50 °C, the origin of the cellulose are Chile and Brazil, and its structures of 2 sheets of 90-80 g/m2, and 3 sheets of 70 g/m2 respectively. The method of gravimetric analysis for the determination of the total migration used was that proposed by Resolution N° 12/95 on the total migration test of MERCOSUR's packaging and cellulose equipment. Results were obtained for the sample of Chile between 0.84-6.89 mg/dm2, being statistically the average no greater than the maximum limit established by MERCOSUR (8 mg/dm2); for the Brazilian sample between 10.95-23.25 mg/dm2, being statistically the average greater than the maximum limit established by MERCOSUR. The method of spectrometric analysis for the determination of the specific migration of lead used was the one proposed by the APHA (Standard Methods for the Examination of Water and Wastewater, Direct Air-Acetylene Flame Method-3111 B). Results were obtained for the Chilean sample between 0.0020-0.0129 mg /l and for the Brazilian sample between 0.0037-0.0171 mg/l, being statistically the average no greater than the maximum limit established by Decree N° 55871 of ANVISA Brazil (2 mg/l), for both samples. According to the results of specific migration in simulant A, the safety of the two cellulose containers can be ensured with respect to the chemical agent lead, under conditions of prolonged contact and a temperature of 50 °C. The mathematical models of the lead migration kinetics obtained were: Chile (Y = 0.113 + 1.386X1 - 0.085X2) and Brazil (Y = -55.864 - 0.304X1 + 9.173X2), the independent variables being: the total migration (X1) and the contact area (X2). Only the Brazilian model was statistically adequate, with its correlation coefficient (R2) of 0.8991, so it will be useful for packaging manufacturers and consumers in forecast calculations.
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