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Identification of odor impact compounds of Tagetes minuta L. essential oil: comparison of two GC-olfactometry methods.
J Agric Food Chem. 2009 Sep 23; 57(18):8572-80.JA

Abstract

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 x 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.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Breme K
LCMBA UMR CNRS 6001, Universite de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France.
Tournayre P
No affiliation info available
Fernandez X
No affiliation info available
Meierhenrich UJ
No affiliation info available
Brevard H
No affiliation info available
Joulain D
No affiliation info available
Berdagué JL
No affiliation info available

MeSH

ButyratesChromatography, GasGas Chromatography-Mass SpectrometryOdorantsOils, VolatilePlant OilsPropionatesSmellTagetesVolatile Organic Compounds

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19694437

Citation

Breme, Katharina, et al. "Identification of Odor Impact Compounds of Tagetes Minuta L. Essential Oil: Comparison of Two GC-olfactometry Methods." Journal of Agricultural and Food Chemistry, vol. 57, no. 18, 2009, pp. 8572-80.
Breme K, Tournayre P, Fernandez X, et al. Identification of odor impact compounds of Tagetes minuta L. essential oil: comparison of two GC-olfactometry methods. J Agric Food Chem. 2009;57(18):8572-80.
Breme, K., Tournayre, P., Fernandez, X., Meierhenrich, U. J., Brevard, H., Joulain, D., & Berdagué, J. L. (2009). Identification of odor impact compounds of Tagetes minuta L. essential oil: comparison of two GC-olfactometry methods. Journal of Agricultural and Food Chemistry, 57(18), 8572-80. https://doi.org/10.1021/jf9016509
Breme K, et al. Identification of Odor Impact Compounds of Tagetes Minuta L. Essential Oil: Comparison of Two GC-olfactometry Methods. J Agric Food Chem. 2009 Sep 23;57(18):8572-80. PubMed PMID: 19694437.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Identification of odor impact compounds of Tagetes minuta L. essential oil: comparison of two GC-olfactometry methods. AU - Breme,Katharina, AU - Tournayre,Pascal, AU - Fernandez,Xavier, AU - Meierhenrich,Uwe J, AU - Brevard,Hugues, AU - Joulain,Daniel, AU - Berdagué,Jean Louis, PY - 2009/8/22/entrez PY - 2009/8/22/pubmed PY - 2010/1/29/medline SP - 8572 EP - 80 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 57 IS - 18 N2 - 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 x 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. SN - 1520-5118 UR - https://www.unboundmedicine.com/medline/citation/19694437/Identification_of_odor_impact_compounds_of_Tagetes_minuta_L__essential_oil:_comparison_of_two_GC_olfactometry_methods_ DB - PRIME DP - Unbound Medicine ER -
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