147038 20260217205604.0 doi 10.1007/s10924-024-03409-z sideral 140375 ART-2024-140375 eng Paiva, Robert Volatile compounds and off-odors analysis of recycled pla for packaging applications: an essential factor for ensuring food safety and quality 2024 Recent European guidelines support the use of recycled and biodegradable packaging for food applications. The approval of such packaging must not alter food’s taste or be harmful to health. In this work, PLA pellets were subjected to a post-consumer contamination procedure, washing process, and mechanical recycling, under common conditions of the recycling industry. HS-SPME-GC-MS and HS-SPME-GC-O-MS methods were used to detect volatile compounds and off-odor profiles. 33 different volatile compounds were identified in all samples. Intentionally added and non-intentionally added substances (IAS and NIAS) were identified, including benzaldehyde, benzyl alcohol, and dimethyl-1,4-dioxane-2,5-dione. The relationship between the formation of different NIAS and the PLA recycling process steps was determined. 14 different odor compounds such as benzyl alcohol, benzaldehyde, nonanal, decanal, dodecanal, 2,3-dimethylnaphthalene and 2,4-di-tert-butylphenol were detected and classified into 4 aroma groups (Toasted, Flower, Green and Chemical). The results obtained are essential for the food safety of recycled plastic material for food contact. info:eu-repo/grantAgreement/ES/DGA/T53-23R info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 5.0 2024 POLYMER SCIENCE 18 / 94 = 0.191 2024 Q1 T1 ENGINEERING, ENVIRONMENTAL 30 / 83 = 0.361 2024 Q2 T2 0.865 2024 Environmental Engineering 2024 Q1 Polymers and Plastics 2024 Q1 Materials Chemistry 2024 Q1 10.3 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Wrona, Magdalena Universidad de Zaragoza (orcid)0000-0003-2052-3012 Nerín, Cristina Universidad de Zaragoza (orcid)0000-0003-2685-5739 Gavril, Georgiana-Luminita Cruz, Sandra Andrea 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica J POLYMER ENVIRON JOURNAL OF POLYMERS AND THE ENVIRONMENT 1566-2543 957197 http://zaguan.unizar.es/record/147038/files/texto_completo.pdf Versión publicada 2316263 http://zaguan.unizar.es/record/147038/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:147038 articulos driver 2026-02-17-20:46:00 ARTICLE