Abstract
The aim of present study was to investigate the effect of different ultrasound power on physicochemical property and functional performance of chicken actomyosin (CAM). The treated CAM had the lowest particle size and the highest absolute zeta potential at 150 W. The conformation changes of treated CAM exhibited the reduction in α-helix as well as the improvement of fluorescence intensity. Ultrasound power at 150 W could significantly increase protein hydrophobicity and reactive SH groups compared to the others (P < 0.05). The disappearance of specific peaks and lower endothermic peaks implied that the treated CAM became thermally instable. The microstructure of CAM revealed small and homogeneous sub-bunches treated by 100–150 W. Furthermore, the solubility and emulsion property of CAM was significantly increased at 150 W (P < 0.05). These results demonstrated that ultrasound treatment at the power of 100–150 W may be an appropriate range to modify CAM for enhancing its functional properties.
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