Advantages and disadvantages of plant extraction methods and plant extraction.

Ultrasonic cavitation accelerates the leaching of effective components from plants.

Advantages: short extraction time, simple extraction method, high extraction rate and low extraction temperature, avoiding the damage of effective components by high temperature and high pressure.

Disadvantages: high container requirements, noise, equipment amplification and other problems.

2. Microwave extraction

In the microwave field, materials have different microwave absorption abilities, and some components can be selectively heated and extracted.

Advantages: short extraction time, simple equipment and less investment.

Disadvantages: the extraction mechanism is unknown.

3. Supercritical extraction

Supercritical fluid is used instead of traditional organic solvent for extraction and separation. Commonly used in volatile components, fat-soluble substances, highly heat-sensitive substances and precious medicinal materials.

Advantages: low temperature, retention of effective components, no solvent residue, high purity and simple operation.

Disadvantages: high-voltage equipment, large one-time investment and high operating cost.

4. Membrane separation

Advantages: good separation effect, low energy consumption, no phase change, working temperature close to room temperature, pure physical process, simplified process and continuous operation.

Disadvantages: Membrane pollution needs to be replaced regularly.