Triticeae glutens causing them to stretch out in solution. Deamidation of 20% of glutamine side chains to glutamate suffices to generate a soluble product. This renders gluten soluble enough without alcohol to mix with other products like milk. Individuals who suffer from gluten-sensitive enteropathy/coeliac disease have an adverse reaction to the gluten in cultivars of Triticeae when eaten. In addition to bread wheat, rye and barley (which have similar glutens) are known to cause symptoms in coeliacs. Between 2 and 10% of gluten sensitive individuals are also sensitive to oats, but it is not clear how much of this is due to
Rye bread upon this mixing of grains. Use of high-gluten wheat flour also makes possible multigrain breads, such as the "rye and Indian" bread of the American colonies, which combined rye and wheat with cornmeal in one loaf. Rye bread contains phenolic acids and ferulic acid dehydrodimers. Pure rye bread contains only rye flour, without any wheat. German-style pumpernickel, a dark, dense, and close-textured loaf, is made from crushed or ground whole rye grains, usually without wheat flour, baked for long periods at low temperature in a covered tin. Rye and wheat flours are often used to produce a rye bread with