Application analysis of ultrasonic extractor equipment in the pharmaceutical field
(1) Accelerate the movement of medium particles. When ultrasonic waves with a sound frequency higher than 20 KHz propagate in a continuous medium (such as water), according to the Huygens wave principle, the medium particles (including the particles of the important effective components of medicinal materials) will move on the wavefront of its propagation. The movement of the medium particles obtains huge acceleration and kinetic energy. The acceleration of the particle is generally calculated to be more than two thousand times the acceleration of gravity. Because the particles of the medium act on the particles of the medicinal ingredients in the medicinal materials with ultrasonic energy, they obtain huge acceleration and kinetic energy, and quickly escape the medicinal material matrix and free in the water.
(2) Cavitation. The propagation of ultrasonic waves in the liquid medium produces a special "cavitation effect". The "cavitation effect" continuously generates countless microcavities with an internal pressure of thousands of atmospheres and continuously "blasts" to produce a powerful microscopic shock wave that acts on Chinese herbal medicines. , So that the medicinal ingredients are "bombarded" to escape, and the medicinal matrix is constantly eroded, and the medicinal ingredients that are not part of the plant structure are continuously separated. Speed up the leaching and extraction of plant active ingredients.
(3) The ultrasonic vibration homogenization makes all points in the sample medium have the same effect and makes the extraction of the whole sample more uniform. To sum up, under the action of ultrasonic field, the medicinal substances in Chinese medicinal materials not only obtain their own huge acceleration and kinetic energy as medium particles, but also obtain powerful external impact through the "cavitation effect", so they can be fully separated.
