Quantitative analysis of γ- and δ-lactones in wines using gas chromatography with selective tandem mass spectrometric detection.
BACKGROUND
Aroma relevant γ- and δ-lactones are important flavor compounds in various foodstuffs. Their quantitative determination is essential for evaluating food sensory properties as well as food authenticity studies.


METHODS
High-throughput head-space solid-phase microextraction as sample preparation, separation by capillary gas chromatography coupled with triple stage quadrupole mass spectrometry has been evaluated as the analytical method.


RESULTS
Monitoring selected reaction mass fragments allowed sub-µg/L quantification of γ- and δ-lactones in complex wine matrices.


CONCLUSIONS
Tandem mass spectrometry improves specific detection of γ- and δ-lactones, a prerequisite for reliable quantification at low-µg/L concentration levels in complex wine matrices.
Dienstleistungszentrum Ländlicher Raum (DLR) Rheinpfalz, Competence Center for Wine Research, Breitenweg 71, D-67435, Neustadt an der Weinstraße, Germany.
Johannes
J
Langen
Chen-Yin
CY
Wang
Petra
P
Slabizki
Kristina
K
Wall
Hans-Georg
HG
Schmarr