## Abstract __p__‐Hydroxymercuribenzoic acid (pHMB), reacts reversibly with thiols. Using this principle, an extraction method of the thiols present in wines has been established. Injecting the extracts from __Vitis vinifera__ L. var. Sauvignon wines on to a gas‐chromatographic column using the pur
First Identification of 4- S -Glutathionyl-4-methylpentan-2-one, a Potential Precursor of 4-Mercapto-4-methylpentan-2-one, in Sauvignon Blanc Juice
✍ Scribed by Fedrizzi, Bruno; Pardon, Kevin H.; Sefton, Mark A.; Elsey, Gordon M.; Jeffery, David W.
- Book ID
- 127079925
- Publisher
- American Chemical Society
- Year
- 2009
- Tongue
- English
- Weight
- 554 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0021-8561
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A very odorous compound, 4-mercapto-4-methylpentan-2-one has been identi®ed in the box tree, Buxus sempervirens L., and in broom, Sarothamnus scoparius (L.) Koch by a selective extraction of volatile thiol compounds. Although the concentration varied depending on weather and the places where samples
## Abstract 4‐Methyl‐4‐sulfanylpentan‐2‐one (**1**; 4MSP) provides a characteristic aroma compound of wines made from __Vitis vinifera__ L. cv. Sauvignon blanc. 4MSP has a strong box‐tree odor with a very low perception threshold and is derived from the cysteinylated precursor __S__‐(1,1‐dimethyl‐3