Hordein find gluten free beer which either uses ingredients that do not contain gluten, or otherwise has the amounts of gliadin or hordein present controlled to stated limits. Hordein Hordein is a prolamin glycoprotein, present in barley and some other cereals, together with gliadin and other glycoproteins (such as glutelins) coming under the general name of gluten. Some people are sensitive to hordein due to disorders such as celiac disease or gluten intolerance. Along with gliadin (the prolamin gluten found in wheat), hordein is present in many foods and also may be found in beer. Hordein is usually the main problem
Prolamin disease in genetically predisposed individuals. Prolamin Prolamins are a group of plant storage proteins having a high proline content and found on plant materials mainly like in the seeds of cereal grains: wheat (gliadin), barley (hordein), rye (secalin), corn (zein), sorghum (kafirin) and as a minor protein, avenin in oats. They are characterised by a high glutamine and proline content and are generally soluble only in strong alcohol [70-80%] solutions, light acids, and alkaline solution. They do not coagulate in heat. They hydrolyse into prolin and ammonia. Some prolamins, notably gliadin, and similar proteins found in the tribe Triticeae (see