It is generally expected that in the coming decades the worldwide demand for protein will grow strongly. This is a result of the growth of the world population and of a change in diet in upcoming economies. In the western world a switch can be observed from animal protein (meat) towards more “green”, plant-based, proteins and meat replacers. This is partly due to environmental and animal well-being concerns in relation to meat production, but also part of life-style changes. These trends towards more vegans, vegetarians and “flexitarians” result in an increasing market demand for new plant-based proteins for human food products. Plant-based proteins with functionalities that emulate animal proteins (such as egg-white protein and whey protein) in formulated food products have a strong commercial advantage and added value.