Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 48, Issue 5, Pages 1799-1802Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf990660r
Keywords
2-furanmethanethiol; Petit manseng; red Bordeaux wines; Vitis vinifera; barrel; Maillard reaction
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The chemical compound 8-furanmethanethiol (2FM), with a strong roast coffee aroma, has been identified in sweet white wines made from the Petit manseng grape variety, and in certain red Bordeaux wines (made from the Merlot, Cabernet franc, and Cabernet sauvignon grape varieties). This was done by extracting specific volatile thiols using p-hydroxymercuribenzoate. The 2FM has also been found in toasted oak used in barrel-making. All the Petit manseng sweet white wines and some of the red Bordeaux wines analyzed contained between a few ng/L and several dozen ng/L of 2FM. Taking into account its very low perception threshold (0.4 ng/L in a model hydro alcoholic environment), 2FM could therefore contribute to the roast coffee aroma. of certain wines.
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