Details

Autor(en) / Beteiligte

• Breme, Katharina
• Guillamon, Nadine
• Fernandez, Xavier
• Tournayre, Pascal
• Brevard, Hugues
• Joulain, Daniel
• Berdagué, Jean Louis
• Meierhenrich, Uwe J

Titel

First Identification of O,S-Diethyl Thiocarbonate in Indian Cress Absolute and Odor Evaluation of Its Synthesized Homologues by GC-Sniffing

Ist Teil von

• Journal of agricultural and food chemistry, 2009-03, Vol.57 (6), p.2503-2507

Ort / Verlag

Washington, DC: American Chemical Society

Erscheinungsjahr

2009

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• Indian cress (Tropaeolum majus L.) absolute was studied by GC-olfactometry (VIDEO-Sniff method) in order to identify odor-active aroma compounds. Because of its fruity-sulfury odor note, a compound that has never been identified in plant extracts before stood out: O,S-diethyl thiocarbonate, present at 0.1% (percentage of the total GC/FID area) in the extract. GC×GC-TOFMS allowed for a clean mass spectrum to be obtained, and isolation by preparative GC followed by NMR studies allowed its identification. Here, we report on the first detection of O,S-diethyl thiocarbonate in Indian cress absolute by GC-olfactometry/VIDEO-Sniff and on its isolation and identification. The synthesis and odor evaluation of its homologues are presented.