Promoting Effect of Ultrasound Pre-treatment on Protease Hydrolysis of Scallops
In order to improve the protein recovery rate of scallop protease hydrolysate,ultrasound was used for pre-treatment of scallops,followed by alkaline enzyme hydrolysis.Optimization of ultrasonic pre-treatment process parameters using single factor experiments and response surface methodology.The study results showed that the protein recovery rate of scallops treated with ultrasound was effectively improved under the same enzymatic hydrolysis conditions.The optimal process parameters for pre-treatment before ultrasound were ultrasound frequency of 60 kHz,ultrasound power of 310 W,ultrasound time of 24 minutes,ultrasound temperature of 47 ℃,material liquid mass ratio of 1∶5,and enzymatic hydrolysis using alkaline enzymes.The recovery rate of scallop protein was as high as 87.72%,which was 12.49%higher than that without pre-treatment.Using ultrasound for pre-treatment of scallops is an effective way to improve protein recovery rate.