Identification of Potential Migrants in Polyethylene Terephthalate Samples of Ecuadorian Market

Polyethylene terephthalate (PET) is the plastic packaging material most widely used to produce bottles intended for contact with food and beverages. However, PET is not inert, and therefore, some chemical compounds present in PET could migrate to food or beverages in contact, leading to safety issue...

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Autores principales:	Karina Marín-Morocho, Sandra Domenek, Rómulo Salazar
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	polyethylene terephthalate PET chemicals compounds migration additives bottles Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/790aba089eea42a1a78140abca7ba478
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spelling	oai:doaj.org-article:790aba089eea42a1a78140abca7ba4782021-11-11T18:46:55ZIdentification of Potential Migrants in Polyethylene Terephthalate Samples of Ecuadorian Market10.3390/polym132137692073-4360https://doaj.org/article/790aba089eea42a1a78140abca7ba4782021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3769https://doaj.org/toc/2073-4360Polyethylene terephthalate (PET) is the plastic packaging material most widely used to produce bottles intended for contact with food and beverages. However, PET is not inert, and therefore, some chemical compounds present in PET could migrate to food or beverages in contact, leading to safety issues. To evaluate the safety of PET samples, the identification of potential migrants is required. In this work, eight PET samples obtained from the Ecuadorian market at different phases of processing were studied using a well-known methodology based on a solvent extraction followed by gas chromatography–mass spectrometry analysis and overall migration test. Several chemical compounds were identified and categorized as lubricants (carboxylic acids with chain length of C12 to C18), plasticizers (triethyl phosphate, diethyl phthalate), thermal degradation products (p-xylene, benzaldehyde, benzoic acid), antioxidant degradation products (from Irgafos 168 and Irganox), and recycling indicator compounds (limonene, benzophenone, alkanes, and aldehydes). Additionally, overall migration experiments were performed in PET bottles, resulting in values lower than the overall migration limit (10 mg/dm<sup>2</sup>); however, the presence of some compounds identified in the samples could be related to contamination during manufacturing or to the use of recycled PET-contaminated flakes. In this context, the results obtained in this study could be of great significance to the safety evaluation of PET samples in Ecuador and would allow analyzing the PET recycling processes and avoiding contamination by PET flakes from nonfood containers.Karina Marín-MorochoSandra DomenekRómulo SalazarMDPI AGarticlepolyethylene terephthalatePETchemicals compoundsmigrationadditivesbottlesOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3769, p 3769 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	polyethylene terephthalate PET chemicals compounds migration additives bottles Organic chemistry QD241-441
spellingShingle	polyethylene terephthalate PET chemicals compounds migration additives bottles Organic chemistry QD241-441 Karina Marín-Morocho Sandra Domenek Rómulo Salazar Identification of Potential Migrants in Polyethylene Terephthalate Samples of Ecuadorian Market
description	Polyethylene terephthalate (PET) is the plastic packaging material most widely used to produce bottles intended for contact with food and beverages. However, PET is not inert, and therefore, some chemical compounds present in PET could migrate to food or beverages in contact, leading to safety issues. To evaluate the safety of PET samples, the identification of potential migrants is required. In this work, eight PET samples obtained from the Ecuadorian market at different phases of processing were studied using a well-known methodology based on a solvent extraction followed by gas chromatography–mass spectrometry analysis and overall migration test. Several chemical compounds were identified and categorized as lubricants (carboxylic acids with chain length of C12 to C18), plasticizers (triethyl phosphate, diethyl phthalate), thermal degradation products (p-xylene, benzaldehyde, benzoic acid), antioxidant degradation products (from Irgafos 168 and Irganox), and recycling indicator compounds (limonene, benzophenone, alkanes, and aldehydes). Additionally, overall migration experiments were performed in PET bottles, resulting in values lower than the overall migration limit (10 mg/dm<sup>2</sup>); however, the presence of some compounds identified in the samples could be related to contamination during manufacturing or to the use of recycled PET-contaminated flakes. In this context, the results obtained in this study could be of great significance to the safety evaluation of PET samples in Ecuador and would allow analyzing the PET recycling processes and avoiding contamination by PET flakes from nonfood containers.
format	article
author	Karina Marín-Morocho Sandra Domenek Rómulo Salazar
author_facet	Karina Marín-Morocho Sandra Domenek Rómulo Salazar
author_sort	Karina Marín-Morocho
title	Identification of Potential Migrants in Polyethylene Terephthalate Samples of Ecuadorian Market
title_short	Identification of Potential Migrants in Polyethylene Terephthalate Samples of Ecuadorian Market
title_full	Identification of Potential Migrants in Polyethylene Terephthalate Samples of Ecuadorian Market
title_fullStr	Identification of Potential Migrants in Polyethylene Terephthalate Samples of Ecuadorian Market
title_full_unstemmed	Identification of Potential Migrants in Polyethylene Terephthalate Samples of Ecuadorian Market
title_sort	identification of potential migrants in polyethylene terephthalate samples of ecuadorian market
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/790aba089eea42a1a78140abca7ba478
work_keys_str_mv	AT karinamarinmorocho identificationofpotentialmigrantsinpolyethyleneterephthalatesamplesofecuadorianmarket AT sandradomenek identificationofpotentialmigrantsinpolyethyleneterephthalatesamplesofecuadorianmarket AT romulosalazar identificationofpotentialmigrantsinpolyethyleneterephthalatesamplesofecuadorianmarket
_version_	1718431710293524480

Identification of Potential Migrants in Polyethylene Terephthalate Samples of Ecuadorian Market

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