Ultrasonic degassing is among the first potential applications of acoustic cavitation
In particular, acoustic cavitation
involves sending sound waves in the ultrasonic frequency range (>20 kHz) through a liquid medium.
It employs the acoustic cavitation
of microbubbles to enhance delivery of these large molecules.
The extraction process was assisted by sonication which is based on the sonochemical phenomenon associated with acoustic cavitation
 that helps the disruption of cell walls and facilitate the release of contents .
The sonochemical effect of the acoustic cavitation
in liquid causes a significant shortening between the range of chemical transformation and a continuous formation, growth and explosive collapse of the bubbles.
produced by US exposure is believed to be the main physical mechanism caused by US exposure [20, 21].
As the bubbles violently collapse, they release tiny shock waves, a phenomenon called acoustic cavitation
Surface acoustic cavitation
understood via nanosecond electrochemistry.
It is generally accepted that ultrasonic irradiation affects chemical reactions through acoustic cavitation
in the reaction medium [1, 2].
This acoustic cavitation
can produce intra-bubble temperatures approaching l0,000[degrees]C.
Researchers knew then that collapsing bubbles could create high temperatures and pressures, a phenomenon known as acoustic cavitation
This type of cavitation is known as acoustic cavitation
, (Franc, 2004).