Quantification of volatile compounds released by roasted coffee by selected ion flow tube mass spectrometry

Rapid Communications in Mass Spectrometry : RCM
Kseniya DryahinaPatrik Spanel

Abstract

The major objective of this exploratory study was to implement selected ion flow tube mass spectrometry, SIFT-MS, as a method for the on-line quantification of the volatile organic compounds, VOCs, in the headspace of the ground roasted coffee. The optimal precursor ions and characteristic analyte ions were selected for real-time SIFT-MS quantification of those VOCs that are the most abundant in the headspace or known to contribute to aroma. NO+ reagent ion reactions were exploited for most of the VOC analyses. VOC identifications were confirmed using gas chromatography/mass spectrometry, GC/MS, coupled with solid-phase microextraction, SPME. Thirty-one VOCs were quantified, including several alcohols, aldehydes, ketones, carboxylic acids, esters and some heterocyclic compounds. Variations in the concentrations of each VOC in the seven regional coffees were typically less than a factor of 2, yet concentrations patterns characteristic of the different regional coffees were revealed by heat map and principal component analyses. The coefficient of variation in the concentrations across the seven coffees was typically below 24% except for furfural, furan, methylfuran and guaiacol. The SIFT-MS analytical method can be used to quanti...Continue Reading

References

Nov 24, 1999·Journal of Agricultural and Food Chemistry·M CzernyW Grosch
Mar 22, 2000·Journal of Agricultural and Food Chemistry·M Czerny, W Grosch
Dec 3, 2003·Rapid Communications in Mass Spectrometry : RCM·David SmithPatrik Spanĕl
Oct 21, 2004·Mass Spectrometry Reviews·David Smith, Patrik Spanel
Mar 25, 2011·The Analyst·David Smith, Patrik Spaněl
Sep 18, 2014·Journal of Mass Spectrometry : JMS·Sine YenerFranco Biasioli
Feb 24, 2016·International Journal of Food Science·Nahid Tamanna, Niaz Mahmood

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Citations

Nov 23, 2019·Rapid Communications in Mass Spectrometry : RCM·Regina Brůhová MichalčíkováPatrik Španěl
Sep 21, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Albert ChangYen-Ho Chu
Dec 19, 2020·Comprehensive Reviews in Food Science and Food Safety·M M Chayan MahmudRussell Keast
Oct 28, 2019·Environmental Science & Technology·Derek J PriceJose L Jimenez

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