ELEVAGE Glu

Elevage Glu is a refining agent used to preserve the most delicate varietal aromas and to prevent the occurrence of post fermentation reduction and pinking by regulating the redox potential in wine. It is composed of yeast cell walls that have been selected due to their high glutathione levels. The tendency of a wine to oxidise is proportional to the ratio between cinnamic acids and glutathione. Low glutathione levels in wine results in higher tendency to browning with loss of freshness and aromatic intensity. Moreover lack of glutathione results in higher formation of quinones that behave as free radicals and quickly release their oxidative power in the media. Elevage Glu protects the wine by naturally introducing glutathione into solution which acts on quinones, binding with them in a stable form.