130871 20240201151019.0 doi 10.1016/j.foodchem.2019.05.069 sideral 112293 ART-2019-112293 eng Ubeda, S. Universidad de Zaragoza (orcid)0000-0002-9804-8699 Determination of volatile compounds and their sensory impact in a biopolymer based on polylactic acid (PLA) and polyester 2019 Polylactic acid (PLA) is one of the most commonly used biopolymers for manufacturing food packaging; its control is very important to ensure consumers’ health. In this work, a blend of PLA and polyester was studied and its volatile composition in the polymer and in the migration to food simulants was determined by gas chromatography–mass spectrometry (GC–MS) and atmospheric pressure gas chromatography–quadrupole-time of flight mass spectrometry (APGC–QTOF). The results showed that both techniques provided complementary information, to give complete information on the biopolymer''s composition. Some compounds such as lactide or cyclopentanone were detected only by GC–MS while others, such as the cyclic dimer [AA-BD] 2 (AA:adipic acid, BD:butanediol), were detected only by APGC–MS. In migration, lactide, AA-BD and [AA-BD] 2 were identified in ethanol 95%. A GC–olfactometry study was also carried out. Some compounds showed sensory impact on the polymer odor but not in migration. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA/T10 info:eu-repo/grantAgreement/ES/MINECO/AGL2015-67362-P info:eu-repo/grantAgreement/ES/MINECO/BES-2016-077159 info:eu-repo/grantAgreement/ES/MINECO/RYC-2012-11856 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 6.306 2019 CHEMISTRY, APPLIED 5 / 70 = 0.071 2019 Q1 T1 NUTRITION & DIETETICS 10 / 89 = 0.112 2019 Q1 T1 FOOD SCIENCE & TECHNOLOGY 6 / 138 = 0.043 2019 Q1 T1 1.775 2019 Analytical Chemistry 2019 Q1 Medicine (miscellaneous) 2019 Q1 Food Science 2019 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Aznar, M. Universidad de Zaragoza (orcid)0000-0002-0759-9170 Nerín, C. Universidad de Zaragoza (orcid)0000-0003-2685-5739 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 294 (2019), 171-178 Food chem. Food Chemistry 0308-8146 606059 http://zaguan.unizar.es/record/130871/files/texto_completo.pdf Postprint 1438906 http://zaguan.unizar.es/record/130871/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:130871 articulos driver 2024-02-01-14:36:24 ARTICLE