Wine color practice of saignée (exposing wine to red grape skins for only a short period of time in order to give it a lighter feel closer to that of white wine) or by blending a white wine with a red wine. The presence of a complex mixture of anthocyanins and procyanidins can increase the stability of color in wine. As it ages, the wine undergoes chemical autoxidation reactions involving acetaldehyde of its pigments molecules. The newly formed molecules are more stable to the effect of pH or sulfite bleaching. The new compounds include pyranoanthocyanins like vitisins (A and B), pinotins and
Algerian wine France filled the void. An influx of winemakers from the German wine region of Baden brought with them more modern winemaking techniques and helped to increase the overall quality of Algeria wine. Even after the French resumed normal levels of wine production, Algerian wine was still widely used in regions like the Languedoc as a blending component that added color and strength to the wines. The high point of the Algerian wine industry came in the late 1930s when over was producing more of wine. By the 1950s, together with Tunisia and Morocco, Algerian wine accounted for nearly two thirds