Development and Evaluation of Models for Predicting Chemical Contaminant Migration in Foods

Abstract: 
Polyethylene bags have become very popular for wrapping ready food or during cooking. Polythene materials are known to contain a wide range of potential migrants such as residues from the polymerisation process, degradation compounds and additives, many of which are toxic. There is need therefore to assess the potential danger posed to humans by migration of chemicals from polyethylene. Analysis of migrants in food is expensive and time consuming because of low concentrations of migrated substances and the complexity of the food matrix. Therefore, dependable models that accurately predict the progress of chemical contaminant migration in food is needed. This research therefore aims to develop, simulate and validate models capable of predicting the migration of chemical contaminants by identifying and, quantifying plastic bag contaminants so as to contribute to understanding of contaminant migration, organoleptic changes, contaminant diffusion and dispersion in “posho”
Les sacs en polyéthylène sont devenus très populaires pour l’emballage des aliments préparés ou pendant la cuisson. Les matériaux en polyéthylène sont reconnus de contenir un grand nombre de migrants potentiels, tels que les résidus du procédé de polymérisation, les produits de dégradation et les additifs, dont beaucoup d’entre eux sont toxiques. Il est donc nécessaire d’évaluer le danger potentiel pour l’homme par la migration de produits chimiques de polyéthylène. L’analyse des migrants dans les aliments est coûteuse et prend du tempsà cause de faibles concentrations de substances migrées et la complexité de la matrice alimentaire. Par conséquent, les modèles fiables qui puissent prédire avec exactitude l’état d’avancement de la migration des contaminants chimiques dans les aliments,sontnécessaires. Cette recherche vise donc à développer, simuler et valider des modèles capables de prédire la migration des contaminants chimiques par l’identification et la quantification des contaminants des sacs en plastique afin de contribuer à la compréhension de la migration des contaminants, des modifications organoleptiques, de la diffusion des contaminants et leur dispersion dans le “posho”.
Language: 
Extended abstracts submitted under Food Science and Value Addition
Date of publication: 
2012
Country: 
Region Focus: 
East Africa
Collection: 
RUFORUM Conferences and Workshops
Agris Subject Categories: 
Licence conditions: 
Open Access
Access restriction: 
Form: 
Printed resource
Publisher: 
Notes: 

The 2012 RUFORUM Biennial Conference is the third in the series. The main objective of the Biennial conferences is to provide a platform for agricultural research for development stakeholders in Africa and beyond to actively exchange findings and experiences, while at the same time learning lessons towards improving performance of the agricultural sector and ultimately people’s livelihoods. The biennial conference is RUFORUM’s most comprehensive meeting for the diversity of stakeholers in agriculture. It is especially dedicated to graduate students and their supervisors, grantees in RUFORUM member universities and alumni. It is a platform for peer review, quality control, mentorship, networking and shared learning. The third Biennial Conference was attended by 657 participants.This record contains an extended abstract accepted under the theme of Food Science and Value Addition