5-cysteine conjugates, aroma precursors

Peyrot des Gachons, C., Tominaga, T., Dubourdeiu, D. (2002a). Localization in the berry of S-cysteine conjugates, aroma precursors of Vitis vinifera L. cv. Sauvignon blanc grapes. The effect of skin contact on the aromatic potential of the musts. Am. J. Enol. Vitic., 53, 144-146. 

Recent studies have focused on cysteine-S-conjugates as varietal aroma precursors (see Baumes, 2009). Chemically, these odorless compounds are S-substituted derivatives of L-cysteine, differing in the attached to sulfur atom. During fermentation, extremely odorous volatile thiols are formed from these precursors (see Dubourdieu and Tominaga, 2009). One of these thiols, 3-sulfanylhexan-l-ol (3SH), is known as an important aroma... 

Tominaga, T, Masneuf, I., Dubourdieu, D. (1995) A S-cysteine conjugate precursor of aroma of white sauvignon. Journal International des Sciences de la Vigne et du Vin, 29, 227-232. 

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