The ultrasonic Chinese medicine extraction equipment is composed of an ultrasonic transducer, a shell, an amplitude bar, a tool head (probe) and a driving power supply. The ultrasonic transducer is equipped with a fan to cool down, ensuring that it can work efficiently for a long time.
Ultrasonic extraction is a technology that uses the mechanical effect, cavitation effect and thermal effect of ultrasonic (frequency >20KHz) to extract the effective component of the material (Chinese Medicine) by increasing the velocity of the medium molecules and increasing the penetration force of the medium.
1. mechanical effect
The propagation of ultrasonic wave in the medium can cause the vibration of the medium particle in its propagation space, thus strengthening the diffusion and mass transfer of the medium, that is the mechanical effect of the ultrasonic.
Ultrasonic propagation: 1. radiation pressure - tissue cell deformation, vegetable protein degeneration.
2. molecular friction -- biological molecular depolymerization
2. cavitation effect
The micro bubbles dissolved in the medium increase under the action of ultrasound, forming a resonant cavity, and then close in an instant, that is, the cavitation effect of ultrasound.
3. thermal effect
In the process of ultrasonic wave propagation, the sound energy is continuously absorbed by the medium, and all or most of it is converted into heat energy, which causes the temperature of the medium itself and the medicinal materials to rise and the dissolution of the effective components. This is the thermal effect of the ultrasonic.
Ultrasonic (traditional Chinese Medicine) extraction advantages:
1. the extraction efficiency is high: the unique physical characteristics of ultrasonic wave can cause the plant cell tissue to break down or deform, make the extraction of effective components of Chinese medicine more fully, and the extraction rate is up to 50 - 500% compared with the traditional technology.
2. the extraction time is short: the best extraction rate can be obtained from 24 to 40 minutes by ultrasonic enhancement of traditional Chinese medicine. The extraction time is greatly shortened by 2 / 3 compared with the traditional method.
3. the extraction temperature is low: the optimum temperature of ultrasonic extraction of Chinese medicinal materials is 0 - 60 degrees centigrade, and it has protective effect on the effective components in the medicinal materials, which are unstable, hydrolyzed or oxidized, and the energy consumption is greatly saved. The extraction temperature is 40 - 60 C, and the effective component is protected.
4. wide adaptability: ultrasonic extraction of Chinese medicinal materials is not restricted by the polarity and molecular weight of components, and is suitable for the extraction of most kinds of Chinese medicinal materials and various components.
5. there is less impurity in the extract, and the effective components are easy to separate and purify.
6. the extraction process has low operating cost and remarkable comprehensive economic benefits.
7. the operation is simple and easy, and the equipment is easy to maintain and maintain.
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