Stable isotope characterization of olive oils. I-Compositional and carbon-13 profiles of fatty acids

Autor:	C. Gerard, Norbert Naulet, M. Lees, A. Royer, G. J. Martin
Rok vydání:	1999
Předmět:	chemistry.chemical_compound Chromatography Triglyceride Chemistry Stable isotope ratio General Chemical Engineering Organic Chemistry Carbon-13 Composition (visual arts) Transesterification Gas chromatography Mass spectrometry Chemical composition
Zdroj:	Journal of the American Oil Chemists' Society. 76:357-363
ISSN:	0003-021X
Popis:	Nearly 200 olive oils produced in the Mediterranean basin, mainly in Greece, during 4 yr from 1993 to 1996, were studied by gas chromatography (GC) and on-line GC-isotope ratio mass spectrometry (GC-C-IRMS). The composition of the oils in the more abundant fatty acids (C16:0, C16:1, C18:0, C18:1, C18:2, and C18:3) was obtained by GC after transesterification of the triglycerides into methyl esters. Using the hyphenated GC-C-IRMS technique, the 13C contents of the three most abundant acids, C16:0, C18:1, and C18:2, were measured with satisfactory accuracy. The results, analyzed in terms of geographical, temporal, and botanical factors, provide new criteria for the authentication of olive oils.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::611286fafa3d3b3c3208586b4717f5fe https://doi.org/10.1007/s11746-999-0243-8 Zobrazit plný text záznamu Full text from SpringerLink Plný text