The effects of application of ultrasound and microwave treatments before the ultrafiltration
desalination of salted duck egg white protein were investigated in this work. The
desalination rate, color, microstructure, foaming capacity, emulsifying index and gelling
property were determined. The results showed that ultrasound and microwave pretreatments
increased about 10% and 3% desalination rate, respectively, compared to that without
any pretreatment sample, beside the product quality was also improved. The effect of ultrasound
pretreatment was better than that of microwave in terms of foaming capacity and
emulsifying index of the product.