000144948 001__ 144948
000144948 005__ 20250923084440.0
000144948 0247_ $$2doi$$a10.1016/j.chroma.2024.465348
000144948 0248_ $$2sideral$$a139832
000144948 037__ $$aART-2024-139832
000144948 041__ $$aeng
000144948 100__ $$0(orcid)0009-0003-6592-6306$$aPérez-Bondía, Estela$$uUniversidad de Zaragoza
000144948 245__ $$aEvaluation of new safety decontamination approaches at lab scale for recycled highdensity polyethylene (rHDPE) intended for food contact
000144948 260__ $$c2024
000144948 5060_ $$aAccess copy available to the general public$$fUnrestricted
000144948 5203_ $$aBackground
The increasing use of plastic packaging materials generates concerns related to the environmental problem generated by their waste. As a result, the search for new recycling methodologies to extend the lifecycle of plastic packaging is becoming more important, without forgetting to ensure the safety of these materials. Currently, the use of recycled polyolefins as food contact materials is not widespread yet. This is because the decontamination processes currently available are insufficient to produce clean, safe materials suitable for such applications. This work is focused on the evaluation of the safety of recycled high-density polyethylene (rHDPE), and the search for strategies to achieve its decontamination.
Results
To this end, three batches of flakes and three batches of pellets of rHDPE coming from the mechanical recycling of post-consumer milk bottles were analyzed. The analysis of the volatile and semi-volatile compounds present in the samples was carried out using gas chromatography-mass spectrometry (GC–MS), finding a total of 67 compounds. The strategy to achieve the decontamination of flakes and pellets of this material has been based on the application of high temperature and vacuum at lab scale, obtaining a clear decrease in volatile compounds, below 50% of the initial value in most cases when applying 120 °C during 5 h. The migration test performed in the samples (treated and untreated) to different food simulants (10 % ethanol and 3 % acetic acid, 95 % ethanol) revealed also a clear decrease of concentrations of volatiles.
Significance
The findings are highly encouraging, demonstrating substantial progress toward the safe and effective use of rHDPE in specific food packaging applications. This indicates a significant step forward in the potential uses of rHDPE. Nevertheless, the lack of toxicity data for many migrants necessitates additional toxicological testing to obtain a more precise risk assessment.
000144948 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FSE/T53-20R$$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-128089OB-I00
000144948 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000144948 590__ $$a4.0$$b2024
000144948 592__ $$a0.731$$b2024
000144948 591__ $$aBIOCHEMICAL RESEARCH METHODS$$b17 / 86 = 0.198$$c2024$$dQ1$$eT1
000144948 593__ $$aAnalytical Chemistry$$c2024$$dQ1
000144948 591__ $$aCHEMISTRY, ANALYTICAL$$b28 / 111 = 0.252$$c2024$$dQ2$$eT1
000144948 593__ $$aMedicine (miscellaneous)$$c2024$$dQ2
000144948 593__ $$aOrganic Chemistry$$c2024$$dQ2
000144948 593__ $$aBiochemistry$$c2024$$dQ2
000144948 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000144948 700__ $$0(orcid)0000-0001-8893-0963$$aDomeño, Celia$$uUniversidad de Zaragoza
000144948 700__ $$0(orcid)0000-0003-2685-5739$$aNerín, Cristina$$uUniversidad de Zaragoza
000144948 700__ $$0(orcid)0000-0002-0759-9170$$aAznar, Margarita$$uUniversidad de Zaragoza
000144948 7102_ $$12009$$2750$$aUniversidad de Zaragoza$$bDpto. Química Analítica$$cÁrea Química Analítica
000144948 773__ $$g1736 (2024), 465348 [13 pp.]$$pJ. chromatogr. A$$tJournal of Chromatography A$$x0021-9673
000144948 8564_ $$s2819241$$uhttps://zaguan.unizar.es/record/144948/files/texto_completo.pdf$$yVersión publicada
000144948 8564_ $$s2491484$$uhttps://zaguan.unizar.es/record/144948/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000144948 909CO $$ooai:zaguan.unizar.es:144948$$particulos$$pdriver
000144948 951__ $$a2025-09-22-14:50:12
000144948 980__ $$aARTICLE