Ultrasonic extraction is a technology that utilizes the cavitation effect of ultrasonic waves. Ultrasonic waves vibrate 20000 times per second, increasing the dissolved microbubbles in the medium, forming a resonant cavity, and then instantly closing to form a powerful micro impact. By increasing the movement speed of medium molecules and increasing the permeability of the medium, the effective components of substances are extracted. At the same time, the micro jet generated by strong ultrasonic vibration can directly penetrate the cell wall of plants. Under the action of strong ultrasonic energy, plant cells collide violently with each other, promoting the dissolution of effective ingredients on the cell wall.
The unique physical properties of ultrasound can promote the breaking or deformation of plant cell tissues, making the extraction of effective ingredients in herbs more comprehensive and improving the extraction rate compared to traditional processes. Ultrasound enhanced extraction of herbs usually takes 24-40 minutes to obtain the optimal extraction rate. The extraction time is greatly reduced by
more than 2/3 compared to traditional methods, and the processing capacity of raw materials for medicinal materials is large. The optimal temperature for ultrasonic extraction of herbs is between 40-60 ℃, which has a protective effect on the active ingredients in medicinal materials that are unstable, easily hydrolyzed or oxidized when exposed to heat, while greatly saving energy consumption;
Post time: Dec-11-2024