130859 20240201151018.0 doi 10.1016/j.chroma.2017.04.006 sideral 98971 ART-2017-98971 eng Aznar, M. Universidad de Zaragoza (orcid)0000-0002-0759-9170 Fabric phase sorptive extraction as a reliable tool for rapid screening and detection of freshness markers in oranges 2017 A simple, fast and sensitive analyte extraction method based on fabric phase sorptive extraction (FPSE) followed by gas chromatography-mass spectrometry (GC–MS) and ultra-performance liquid chromatography-quadrupole time of flight mass spectrometry (UPLC–QTOF–MS) analysis was developed for the analysis of 12 volatile compounds that represent most of the principal chemical families possessing different polarities and volatilities. Five FPSE media coated with different sol-gel sorbent chemistries having different polarities and selectivities were studied: long chain poly(dimethylsiloxane) (PDMS), short chain poly(tetrahydrofuran) (PTHF), Carbowax 20M (CW20M), short chain poly(dimethyl siloxane) (SC PDMS) and polyethylene glycol-polypropylene glycol-polyethylene glycol triblock copolymer (PEG-PPG-PEG). CW20M coated FPSE media was found to be the most efficient extraction media for the analytes of interest in the intended study. The developed methodology was applied to the analysis of orange juice obtained from fresh oranges and oranges after storing at 5 °C for two months in order to identify the best chemical markers, both volatiles and non-volatiles, attributed to the freshness of orange. For this purpose, aliquots of the same juice extracts were analysed by GC–MS as well as by UPLC–QTOF–MS. Monoterpenes and terpenoids, such as terpinene, citronellal or estragole were among the volatile compounds that endured the biggest decrease after the extended storage period. Three non-volatile compounds including one amide (subaphyllin) and two flavanoids (tangeretin and nobiletin) also showed a clear decrease in signal intensity (>70%) after orange stored for two months. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MINECO/AGL2015-67362-P 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/ 3.716 2017 CHEMISTRY, ANALYTICAL 12 / 78 = 0.154 2017 Q1 T1 BIOCHEMICAL RESEARCH METHODS 18 / 77 = 0.234 2017 Q1 T1 1.378 2017 Analytical Chemistry 2017 Q1 Organic Chemistry 2017 Q1 Medicine (miscellaneous) 2017 Q1 Biochemistry 2017 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Úbeda, S. Universidad de Zaragoza (orcid)0000-0002-9804-8699 Nerin, C. Universidad de Zaragoza (orcid)0000-0003-2685-5739 Kabir, A. Furton, K.G. 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 1500 (2017), 32-42 J. chromatogr. A Journal of Chromatography A 0021-9673 2683258 http://zaguan.unizar.es/record/130859/files/texto_completo.pdf Postprint 680306 http://zaguan.unizar.es/record/130859/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:130859 articulos driver 2024-02-01-14:34:59 ARTICLE