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J Sep Sci

Title:		Validation of a headspace trap gas chromatography and mass spectrometry method for the quantitative analysis of volatile compounds from degraded rapeseed oil
Author(s):		Sghaier L; Cordella CB; Rutledge DN; Watiez M; Breton S; Sassiat P; Thiebaut D; Vial J;
Address:		"Lesieur, R&D Center, Coudekerque-Branche, France. Department of Analytical, Bioanalytical Sciences and Miniaturization (LSABM), Institute of Chemistry, Biology and Innovation (CBI) - ESPCI ParisTech, PSL* Research University, Paris, France. AgroParisTech, UMR1145 GENIAL Analytical Chemistry Laboratory, Paris, France. INRA, UMR1145 GENIAL Analytical Chemistry Laboratory, Paris, France"
Journal Title:		J Sep Sci
Year:		2016
Volume:		20160428
Issue:		9
Page Number:		1675 - 1683
DOI:		10.1002/jssc.201501364
ISSN/ISBN:		1615-9314 (Electronic) 1615-9306 (Linking)
Abstract:		"Due to lipid oxidation, off-flavors, characterized by a fishy odor, are emitted during the heating of rapeseed oil in a fryer and affect the flavor of rapeseed oil even at low concentrations. Thus, there is a need for analytical methods to identify and quantify these products. To study the headspace composition of degraded rapeseed oil, and more specifically the compounds responsible for the fishy odor, a headspace trap gas chromatography with mass spectrometry method was developed and validated. Six volatile compounds formed during the degradation of rapeseed oil were quantified: 1-penten-3-one, (Z)-4-heptenal, hexanal, nonanal, (E,E)-heptadienal, and (E)-2-heptenal. Validation using accuracy profiles allowed us to determine the valid ranges of concentrations for each compound, with acceptance limits of 40% and tolerance limits of 80%. This method was then successfully applied to real samples of degraded oils"
Keywords:		Gas Chromatography-Mass Spectrometry Rapeseed Oil/*chemistry Volatile Organic Compounds/*analysis Accuracy profile Gas chromatography Headspace Trap / Rapeseed oil Volatile compounds;
Notes:		"MedlineSghaier, Lilia Cordella, Christophe B Y Rutledge, Douglas N Watiez, Mickael Breton, Sylvie Sassiat, Patrick Thiebaut, Didier Vial, Jerome eng Validation Study Germany 2016/03/19 J Sep Sci. 2016 May; 39(9):1675-83. doi: 10.1002/jssc.201501364. Epub 2016 Apr 28"