Oats (Avena sativa) are a rich source of human nutrients. The protein content of oat grain is the highest among the major cereals (Hoseney, 1994). Oat proteins have a relatively good balance in the amino acid profile. The major group of protein in oats, globulin, has poor solubility in water under neutral and slightly acidic pH condition (Loponen et al., 2007). Oat globulin has a very compact molecular structure and a denaturation temperature of 112 C that is higher than in most plant seed globulins (Marcone et al., 1998).