Triticeae glutens proteins and the level of subcomponents, with bread wheat having the highest protein content and a complex mixture of proteins derived from 3 grass species ("Aegilops speltoides", "Aegilops tauschii strangulata", and "Triticum monococcum"). Triticeae seed proteins fall into four groups: Of these proteins the last two, prolamin (in wheat – gliadin) and glutelin (in wheat – glutenin) form the classically defined gluten components in wheat. Triticeae glutens are primarily important to a developing definition 'gluten-free' in dietary treatments for gluten sensitivity which are intended to exclude pathogenic proteins from the diet of susceptible individuals (namely coeliac disease). The poisonous motifs
Rye bread "maslin" (or variants of the name) was the bread of the better-off peasants for hundreds of years, in contrast to the white manchet bread eaten by the rich, and the horsebread eaten by the poorer peasants, which was made of cheaper grains including oats, barley and pulses. Wheat-rye breads, particularly light rye (sissel) and American pumpernickel, but also a combination known as "marble rye", are very closely associated with Jewish-American cuisine, particularly the delicatessen. The bulk of the flour is white wheat flour (often a less-refined form known as "first clear"), with a substantial portion of rye mixed in for