Related Experiment Video
Updated: Sep 29, 2026

Preparation of High-Quality Fermented Fish Product
Published on: August 23, 2019
Possible mechanism for involvement of cysteine in aroma production in wine
Stéphanie Marchand1, Gilles de Revel, Joseph Vercauteren
1Faculté d'OEnologie, Unité Associée INRA/Université Victor Segalen Bordeaux 2, 351 Cours de la Libération, F-33405 Talence Cedex, France.
Abstract:
Under conditions close to those of wine, that is, low pH, aqueous medium, and low temperatures, this work describes N-(2-sulfanylethyl)-2-oxopropanamide (1), a new intermediate in the formation of 2-acetylthiazole from methylglyoxal and cysteine. 1 was characterized by MS, derivatization MS, and (1)H and (13)C NMR and was synthesized from 2-sulfanylethanamine and ethyl pyruvate. A formation pathway for 2-acetylthiazole from methylglyoxal and cysteine is proposed, in which 1 is a new intermediate in Maillard-type reactions in systems under mild conditions.
Related Concept Videos
Microbes in Beverage Production
Electrophilic Aromatic Substitution: Sulfonation of Benzene
Acid Halides to Esters: Alcoholysis
Sulfur Assimilation
Amino Acid Biosynthetic Pathways
Radical Autoxidation

