main application
The earliest application of ultrasound in biochemistry should be the use of ultrasound to smash the cell wall to release its contents. Subsequent studies have shown that low-intensity ultrasound can promote biochemical processes, such as irradiation of liquid nutrients with ultrasound can increase the growth rate of algae cells, thereby increasing the amount of protein produced by these cells by a factor of three.
The energy density of the ultrasonic sound field is expanded by a trillion times compared with the energy density of the cavitation bubble, causing a huge concentration of energy; the sonochemical phenomenon and sonoluminescence caused by the extreme high temperature and high pressure generated by the cavitation bubble Is a unique form of energy and material exchange in sonochemistry. Therefore, ultrasonic on chemical extraction, biodiesel production, organic synthesis, treatment of microorganisms, degradation of toxic organic pollutants, chemical reaction rate and yield, catalyst catalytic efficiency, biodegradation treatment, ultrasonic anti-scaling and descaling, biological cell comminution, dispersion And coagulation, and acoustic chemical reactions have an increasing role.