醇溶蛋白（Prolamine／Prolamin）是一类蛋白质，多存在于禾本科作物的种子中，脯氨酸含量较高。一般不溶于水、盐溶液和无水乙醇，但溶于70～80％的乙醇。

• 玉米醇溶蛋白
• 小麦醇溶蛋白

Prolamins are a group of plant storage proteins having a high proline content and found 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 solutions. Some prolamins, notably gliadin, and similar proteins found in the tribe Triticeae (see Triticeae glutens) may induce coeliac disease in genetically predisposed individuals.