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Articles

The determination of monomers and oligomers from polyester-based can coatings into foodstuffs over extended storage periods

, , , , , , & show all
Pages 1200-1213 | Received 22 Nov 2017, Accepted 02 Feb 2018, Published online: 26 Feb 2018
 

ABSTRACT

The polymeric coating used in metal packaging such as cans for foods and beverages may contain residual amounts of monomers used in the production of the coating, as well as unreacted linear and cyclic oligomers. Traditionally, although designed for use with plastic food contact materials, food simulants have been used to determine the migration of monomers from coatings into foodstuffs. More recently, food simulants have also been used to determine oligomeric species migrating from can coatings. In the work reported here, the migration of both monomers and oligomers from polyester-based can coatings into food simulants and foodstuffs, some of which were towards the end of their shelf-life, is compared. The concentrations of monomers and selected oligomers in canned foods at the end of their shelf life were found to be significantly lower than those in food simulants, which in turn was lower than those in the extraction solvent acetonitrile.

Disclosure statement

No potential conflict of interest was reported by the authors.

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