Decreases in yield, drip loss in thawing and drip loss after chilled storage were observed in samples from whey proteins sonicated 60min in relation to those sonicated 15 min.
The ultrasound treatment of whey proteins did not modify the colour of frozen and
thawed fillets but increased L* and whiteness of cooked samples in comparison with untreated whey protein coated samples.
All whey protein coatings decreased the lipid oxidation of fish fillets.