Rice protein has been considered to have a high biological value
and low hypoallergenic characteristics. However, the use of rice
protein as an ingredient in foods has been limited, due to its poor
functional properties, such as solubility. Whole rice grains contain
different types of proteins which have been isolated and characterised.
Over 80% of rice proteins are glutelins, which have low solubility
at neutral pH. With low solubility the presence of other
functional properties, such as foaming, gelling and emulsifying,
are also limited (Agboola, Ng, & Mills, 2005).