High Quality Content by WIKIPEDIA articles! Rye bread is a type of bread made with various percentages of flour from rye grain. It can be light or dark in color, depending on the type of flour used and the addition of coloring agents, and is typically denser than bread made from wheat flour. It is higher in fiber than many common types of bread and is often darker in color and stronger in flavor. While rye and wheat are genetically close enough to interbreed (the resulting hybrids are known as triticale), there are some substantial differences in the biochemistry of wheat and rye that can drastically affect the breadmaking process. A key issue is amylases--while wheat amylases are generally not heat-stable and have no effect on the stronger wheat gluten, rye amylase remains active at substantially higher temperatures. Since rye gluten is not particularly strong, the main structure of the bread is based on complex polysaccharides, including rye starch and pentosans, and the amylases in the flour can break down the resulting structure, inhibiting the rise of the dough.

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