Migration of trimellitic acid from epoxy anhydride can coatings into foods

Food Additives and Contaminants
A Fankhauser-Noti, K Grob

Abstract

The migration of trimellitic acid and its esters from epoxy anhydride coatings was determined in simulants as well as in canned foods. The most appropriate simulant was a combination of EC simulants B and C: 2% acetic acid/10% ethanol in water. The average migration into food was 900 microg kg(-1). This far exceeds the 50 microg kg(-1) for which the safety of trimellitic acid and its anhydride is ensured and the Swiss legal limit (QM(T) of 5 mg kg(-1) coating). Furthermore, much trimellitic acid migrated as (unidentified) esters, i.e. toxicological testing of free trimellitic acid is inadequate for the material that in reality migrates.

Citations

Apr 26, 2014·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Jocelyn Tillner, Koni Grob
Jun 20, 2017·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Koni Grob

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