Identification of odor impact compounds of tagetes minuta L. essential oil: Comparison of two GC-olfactometry methods
| Autor: | Uwe J. Meierhenrich, J. L. Berdague, Pascal Tournayre, Hugues Brevard, Daniel Joulain, Katharina Breme, Xavier Fernandez |
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| Přispěvatelé: | Université de Nice Sophia-Antipolis (UNSA), Qualité des Produits Animaux (QuaPA), Institut National de la Recherche Agronomique (INRA), Robertet S.A., Partenaires INRAE |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Chromatography
Gas 01 natural sciences Gas Chromatography-Mass Spectrometry law.invention food Tagetes law Olfactometry VIDEO-SNIFF [SDV.IDA]Life Sciences [q-bio]/Food engineering Oils Volatile Plant Oils AEDA Aroma Essential oil Tagetes minuta Volatile Organic Compounds Chromatography biology 8W-GC-O 010405 organic chemistry Chemistry 010401 analytical chemistry food and beverages General Chemistry biology.organism_classification food.food 0104 chemical sciences Smell Butyrates Odor GC-OLFACTOMETRY Odorants Gas chromatography Propionates General Agricultural and Biological Sciences TAGETES |
| Zdroj: | Journal of Agricultural and Food Chemistry Journal of Agricultural and Food Chemistry, American Chemical Society, 2009, 57 (18), pp.8572-8580. ⟨10.1021/jf9016509⟩ ResearcherID |
| ISSN: | 0021-8561 1520-5118 |
| DOI: | 10.1021/jf9016509⟩ |
| Popis: | International audience; Odor impact compounds of Tagetes minuta L. essential oil were studied by gas chromatography (GC)-olfactometry using aroma extract dilution analysis (AEDA) and vocabulary-intensity-duration of elementary odors by sniffing (VIDEO-Sniff). AEDA was conducted by direct injection and revealed the presence of 43 odorant zones. Highest flavor dilution (FD) values were obtained for ethyl 2-methylpropanoate, ethyl 3-methylbutanoate, (E)-ocimenone, two tentatively identified thiols, and two yet unknown compounds. VIDEO-Sniff was realized by dynamic headspace sampling (D-HS) combined with 8W-GC-olfactometry where eight sniffers simultaneously detect volatile compounds obtained from a single chromatographic separation and revealed the presence of 42 odorant zones. Odorant trace compounds detected by GC-O that were present in quantities inferior to the GC-qMS system’s detection limit and those subject to coelutions were identified by GC×GC-time-of-flight mass spectrometry (TOFMS). A total amount of 37 odorant components could be identified by VIDEO-Sniff, and the strong influence of the fruity notes of numerous esters stood out. Highest olfactory signals were obtained for ethyl 2-methylpropanoate, ethyl 2- and 3-methylbutanoate, and oct-1-en-3-one. Both methods hence come to the conclusion that ethyl 2-methylpropanoate and ethyl 2- and 3-methylbutanoate are among the main odorants in Tagetes minuta L. essential oil. Differences, advantages, and drawbacks of both GC-O methods are discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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