Document Detail


Migration of additives from polymers into food simulants: numerical solution of a mathematical model taking into account food and polymer interactions.
MedLine Citation:
PMID:  11811769     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The principle of a computing program describing precisely the migration of additives from a polymer into a food simulant is presented. As six parameters are used to fit the simulnnt sorption and additive extraction kinetics, the parameters have been determined by independent experiments. Owing to the complicated coupling between the liquid and additive diffusion processes, migration kinetics cannot be obtained by a mathematical resolution of kinetic equations, but they must be calculated by numerical analysis. The method is applied to a UV absorber in polypropylene migrating into glyceryl tripelargonate, a pure triglyceride, of which behaviour and average molecular weight are similar to official fatty food simulants. Properly designed experiments validate the model used to fit the migration kinetics. The possibility of erasing any parameters is also discussed.
Authors:
A Reynier; P Dole; A Feigenbaum
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies    
Journal Detail:
Title:  Food additives and contaminants     Volume:  19     ISSN:  0265-203X     ISO Abbreviation:  Food Addit Contam     Publication Date:  2002 Jan 
Date Detail:
Created Date:  2002-01-28     Completed Date:  2002-01-31     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8500474     Medline TA:  Food Addit Contam     Country:  England    
Other Details:
Languages:  eng     Pagination:  89-102     Citation Subset:  IM    
Affiliation:
INRA SQuAlE, Reims, France.
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MeSH Terms
Descriptor/Qualifier:
Computer Simulation
Food Contamination*
Food Packaging*
Humans
Models, Chemical
Polymers / chemistry*
Polypropylenes / chemistry
Chemical
Reg. No./Substance:
0/Polymers; 0/Polypropylenes

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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