Determination of the 2H/1H and 15N/ 14N ratios of alkylpyrazines from coffee beans (Coffea arabica L. and Coffea canephora var. robusta) by isotope ratio mass spectrometry

Journal of Agricultural and Food Chemistry

Volumn 53, Issue 20, 2005, Pages 7925-7930

  Richling, Elke ^a   Preston, Christina ^a   Kavvadias, Dominique ^a   Kahle, Kathrin ^a   Heppel, Christopher ^a   Hummel, Silvia ^a   König, Thorsten ^b   Schreier, Peter ^a  

^a UNIVERSITY OF WÜRZBURG   (Germany)

^b Givaudan SA   (Switzerland)

Author keywords

15N 14N ratio; 2H 1H ratio; Alkylpyrazines; Coffee; HRGC C P IRMS; IRMS; Isotope ratio mass spectrometry

Indexed keywords

COFFEA ARABICA; COFFEA CANEPHORA; PHASEOLUS (ANGIOSPERM);

DEUTERIUM; NITROGEN; PROTON; PYRAZINE DERIVATIVE;

ARTICLE; CHEMISTRY; COFFEE; MASS SPECTROMETRY; METHODOLOGY; PLANT SEED;

COFFEA; DEUTERIUM; MASS SPECTROMETRY; NITROGEN; NITROGEN ISOTOPES; PROTONS; PYRAZINES; SEEDS;

EID: 27144525234     PISSN: 00218561     EISSN: None     Source Type: Journal    
DOI: 10.1021/jf0509613     Document Type: Article

References (19)

1. Flament, I.; Thomas-Bessière, I. Coffee Flavor Chemistry; Wiley: West Sussex, U.K., 2002.
2. Reichstein, T.; Staudinger, H. Improvements in a method for isolating the aromatic principle contained in roasted coffee. British Patent 246454, 1926.
3. Buffo, R. A.; Cardelli-Freire, C. Coffee flavour: An overview. Flavour Fragrance J. 2004, 19, 99-104.
4. Grosch, W. Key odorants of roasted coffee: Evaluation, release, formation. In Proceedings of the 18th International Scientific Colloquium on Coffee, Helsinki, 2-6 August 1999; Association Scientifique Internationale du Café: Paris, 2000; pp 17-26.
5. Grosch, W.; Czerny, M.; Wagner R.; Mayer, F. Studies on the aroma of roasted coffee. Spec. Publ.-R. Soc. Chem. 1996, 197, 200-205.
6. Wagner, R.; Czerny, M.; Biehlohradsky, J.; Grosch, W. Structure-odour activity relationship of alkylpyrazines. Eur. Food Res. Technol. 1999, 208, 308-316.
7. Schmidt, H.-L.; Rossmann, A.; Werner, R. A. Stable isotope ratio analysis in quality control of flavourings. In Flavourings; Ziegler, E., Ziegler, H., Eds.; Wiley-VCH: Weinheim, Germany, 1998; pp 539-594.
8. Schmidt, H.-L.; Weber, D.; Rossmann, A.; Werner, R. A. The potential of intermolecular and intramolecular isotope correlations for authenticity control. In Flavor Chemistry: 30 Years of Progress; Teranishi, R., Wick, E. L., and Hornstein, I., Eds.; Kluwer Academic/Plenum Publishers: New York, 1999; pp 55-61.
9. 18O measurements for water and volatile organic compounds by continuous-flow pyrolysis isotope ratio mass spectrometry. Anal. Chem. 1997, 69, 1530-1535.
10. Tobias, H. J.; Brenna, J. T. Online pyrolysis as a limitless reduction source for high-precision isotopic analysis of organic-derived hydrogen. Anal. Chem. 1997, 69, 3148-3152.
11. Hilkert, A. W.; Douthitt, C. B.; Schlüter, H. J.; Brand, W. A. Isotope ratio monitoring gas chromatography/mass spectrometry of D/H by high-temperature conversion isotope ratio mass spectrometry. Rapid Commun. Mass Spectrom. 1999, 13, 1226-1230.
12. Richling, E.; Heckel, F.; Schreier, P. Flavor authenticity studies. Progress in multi-element HRGC-IRMS techniques. Chimia 2003, 57, 39-41.
13. Ruff, C.; Hör, K.; Weckerle, B.; König, T.; Schreier, P. Authenticity assessment of estragole and methyl eugenol by on-line gas chromatography-isotope ratio mass spectrometry. J. Agric. Food Chem. 2002, 50, 1028-1031.
14. 12C isotope ratios of trans-anethole using gas chromatography-isotope ratio mass spectrometry. J. Agric. Food Chem. 2002, 50, 3935-3937.
15. Preston, C.; Richling, E.; Elss, S.; Appel, M.; Heckel, F.; Hartlieb, A.; Schreier, P. On-line gas chromatography combustion/pyrolysis isotope ratio mass spectrometry (HRGC-C/P-IRMS) of pineapple (Ananas comosus L. Merr.) volatiles. J. Agric. Food Chem. 2003, 51, 8027-8031.
16. 12C isotope ratios of cinnamaldehyde from different sources using gas chromatography isotope ratio mass spectrometry. Eur. Food Res. Technol. 2003, 217, 444-448.
17. 12C isotope ratios of (E)-methyl cinnamate from different sources using isotope ratio mass spectrometry. J. Agric. Food Chem. 2004, 52, 3065-3068.
18. 1H ratio determination using on-line gas chromatography pyrolysis isotope ratio mass spectometry. J. Agric. Food Chem. 2001, 49, 21-25.
19. Werner, R. A.; Schmidt, H.-L. The in-vivo nitrogen isotope discrimination among organic plant compounds. Phytochemistry 2002, 61, 465-484.