Principle and Application of Low Temperature Ultrasonic Extraction Instrument

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Date: 2024-05-31Read: 3

Low temperature ultrasonic extractor is a method based on the mechanical vibration generated by ultrasound in liquid, which extracts target substances from solid or liquid matrices through the action of mechanical vibration. This method has the advantages of being environmentally friendly, efficient, fast, and selective, and is therefore widely used in the extraction process of food, medicine, cosmetics, and other fields.

Principle of Low Temperature Ultrasonic Extraction Instrument Low temperature ultrasonic extraction instrument is an ultrasonic extraction method carried out under normal or low temperature conditions. Its principle mainly includes mechanical vibration effect, resonance effect, and microemulsification effect. Mechanical vibration effect refers to the mechanical vibration wave generated by ultrasound in liquid, which increases the interaction force between solute particles and solvent molecules in the liquid, thereby promoting the dissolution of substances and the release from the matrix. The resonance effect refers to the maximum vibration amplitude and energy transfer when the interaction force between solute particles and solvent molecules reaches the resonance frequency, further enhancing the dissolution and release effect of the substance. Microemulsion effect refers to the formation of small emulsion clusters between solute particles and solvent molecules, which makes the dissolution and release of substances from the matrix more efficient.

Low temperature ultrasonic extractors are mainly used in the following industries:

1. Food extraction: Low temperature ultrasonic extractor can be used to extract natural pigments, spices, antioxidants and other bioactive substances from food. For example, low-temperature ultrasonic extractors can be used to extract anthocyanins from grape skins in red wine, or naringin from orange skins for the production of food additives.

2. Drug extraction: Low temperature ultrasonic extractors are also widely used in drug extraction. For example, low-temperature ultrasonic extractors can be used to extract active ingredients from plants for the development of raw materials in the pharmaceutical industry. In addition, low-temperature ultrasound can also be used for the extraction of traditional Chinese medicine and the extraction of hops during brewing.

3. Cosmetics extraction: Low temperature ultrasonic extraction can extract natural essential oils, plant extracts, etc. from plants for the production of cosmetics. For some plants that are difficult to extract raw materials, low-temperature ultrasonic extraction technology can improve the extraction efficiency and provide high-quality raw materials.

4. Pollutant detection: Low temperature ultrasonic extractors can also be used in the field of environmental monitoring, with high sensitivity and accuracy for the extraction and analysis of some organic pollutants. For example, the low-temperature ultrasonic extraction method can be used to extract organic pollutants from groundwater from soil, and then evaluate environmental pollution.

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