Quantification of Volatile Metabolites Derived From Garlic (Allium sativum) in Human Urine

Language
en
Document Type
Article
Issue Date
2020-01-15
First published
2019-04-16
Issue Year
2019
Authors
Scheffler, Laura
Sharapa, Constanze
Buettner, Andrea
Editor
Publisher
Frontiers Media S.A.
Abstract

The consumption of garlic (Allium sativum) is widely known to (negatively) impact body odor, in particular breath and sweat, but also urine. Despite this common phenomenon, the underlying processes in the body that lead to the malodor are not yet fully understood. In previous studies we identified three volatile garlic-derived metabolites in human milk and urine, namely allyl methyl sulfide (AMS), allyl methyl sulfoxide (AMSO), and allyl methyl sulfone (AMSO2). In the present study, we monitored the excretion processes of these metabolites via human urine after consumption of garlic over time, whereby 19 sets of eight urine samples (one sample pre-ingestion and seven samples post-ingestion) were analyzed using two-dimensional high resolution gas chromatography-mass spectrometry/olfactometry (HRGC-GC-MS/O). The highest concentrations of these metabolites were detected in urine ~1–2 h after garlic ingestion, with a second increase observed after 6–8 h in the urine of some participants. Moreover, the highest observed concentrations differed between the individual participants or test series by up to one order of magnitude.

Journal Title
Frontiers in Nutrition
Volume
6
Citation
Frontiers in Nutrition 6 (2019). <https://www.frontiersin.org/articles/10.3389/fnut.2019.00043/full>
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