The target of this work was to investigate the response of low intensity ultrasound on different structure changes in food and to evaluate the capability of the ultrasound in food systems. For this purpose, the gelation of hydrocolloids, milk and milk components, the denaturation of α-lactalbumin as a protein in pure form and egg proteins in a complex mixture as well as the lactose hydrolysis in milk serum were investigated using ultrasound and established reference methods. In summary, a linear correlation between ultrasonic and established methods was found for the determination of gelation point, degrees of aggregation of α-lactalbumin and degree of hydrolysis of lactose. The ultrasonic method is a very sensitive to the hydration of molecules. Enzymatic reactions such as the rennet reaction can be monitored more sensitively than using rheometry.
«
The target of this work was to investigate the response of low intensity ultrasound on different structure changes in food and to evaluate the capability of the ultrasound in food systems. For this purpose, the gelation of hydrocolloids, milk and milk components, the denaturation of α-lactalbumin as a protein in pure form and egg proteins in a complex mixture as well as the lactose hydrolysis in milk serum were investigated using ultrasound and established reference methods. In summary, a linear...
»