The increasing cost of proteins from animal sources such as meat, egg and dairy products has encouraged the food industry to find alternative sources of proteins, for use as functional ingredients in formulated foods. In addition, it is becoming evident that protein sources, such as fish meal or soy protein that are often used as animal feed, are unsustainable or economically not viable. Plant proteins, such as soy, legume, canola and cereal proteins, are appealing as sources of food protein because their production is more sustainable (Pimentel & Pimentel, 2003).