RT Journal Article SR Electronic T1 Yeast Autolysis During Champagne Aging JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 21 OP 28 DO 10.5344/ajev.1990.41.1.21 VO 41 IS 1 A1 M. J. Leroy A1 M. Charpentier A1 B. Duteurtre A1 M. Feuillat A1 C. Charpentier YR 1990 UL http://www.ajevonline.org/content/41/1/21.abstract AB The yeast autolysis in Champagne wine during three years of aging has been followed. Autolysis may be defined by a loss of dry matter, a decrease in the percentage of protein and nucleic acids in this dry matter, and by an intracellular proteolytic activity. The yeast strain and its preparation influence autolysis in wine. Some wine constituents have also been studied, in particular, nitrogenous compounds whose concentrations increase during aging.