期刊
出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/02652030410001717821
关键词
trimellitic acid; epoxy anhydride coatings; can coatings; food simulants; regulation through starting materials
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 mug kg(-1). This far exceeds the 50 mug 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.
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