The effects of different concentrations gallic acid (0 mg/g, 1 2 4 and 6 mg/g) on the physicochemical properties Lateolabrax japonicas myofibrillar protein were studied with 400 W ultrasound. results showed that decreased particle size, total sulfhydryl group, carbonyl dimer tyrosine content Ca 2+ -ATPase activity (P<0.05) protein, however, increased zeta potential. Ultrasonic wave could coo...