What Is The Difference between An Ultrasonic Homogenizer And High-speed Mechanical Mixer?

An ultrasonic homogenizer is a powerful tool for blending and homogenizing solid-liquid and liquid-liquid suspensions. Ultrasonic homogenization is a mechanical process that reduces the particles in a liquid, making them uniformly small and evenly distributed. When ultrasonic homogenizers are used for applications such as mixing, dispersing, and emulsifying, the goal is to reduce small particles or liquid droplets in the liquid or slurry to improve the uniformity and stability of the mixture. These particles (dispersed phase) can be either solid or liquid. The reduction in the average particle diameter increases the number of individual particles, leading to a decrease in the average particle distance and an increase in particle surface area. Surface area and average particle distance affect the rheological properties of the liquid. The uniformity of the mixture can affect the stability of the dispersed phase if there is a difference in density between the particles and the liquid. If most particles have similar sizes, the tendency for aggregation during settling or rising processes decreases because similar particles have similar rates of ascent or descent.

Utilizes ultrasonic waves to disrupt particles and create a homogenized mixture. This method is effective for breaking down cells, dispersing particles, and emulsifying liquids at a microscopic level. It is particularly useful for applications where fine particle size and distribution are crucial.

Ultrasonic homogenizers are primarily used in the fields of biology, chemistry, pharmaceuticals, and more, with the following applications:

Cell disruption: Ultrasonic homogenizers can rapidly break down cells, releasing their internal contents. In biopharmaceutical cell cultures and genetic engineering, ultrasonic homogenizers are commonly used to break down and separate samples such as DNA and proteins.

Mixing and homogenizing: Ultrasonic homogenizers can quickly mix and homogenize two or more liquids, commonly used in the production and research of pharmaceuticals, health products, cosmetics, and food.

Suspension and dispersion: Ultrasonic homogenizers can disperse samples like powders and nanomaterials in liquids for subsequent experiments and applications.

Advantages: Best mixing effect for two liquid substances.

Disadvantages: High power consumption, low output, prone to malfunctions, and high maintenance costs.

High-speed mixers are mainly used for simple mixing tasks where the materials do not require refinement but only basic blending. Relies on mechanical agitation or rotation to blend or mix substances. While it can effectively mix materials that do not require fine homogenization, it may not achieve the same level of uniformity and dispersion as an ultrasonic homogenizer, especially when dealing with very small particles or achieving nano-scale dispersion.

High-speed mixers find applications in various industries such as food, pharmaceuticals, chemicals, pesticides, coatings, and more:

1. Food industry: Mixers are widely used in food processing for making bread, cakes, biscuits, chocolates, soy milk, juices, and other food products. In these processes, mixers work on ingredients to thoroughly blend or crush them to achieve production goals.

2. Pharmaceutical industry: Mixers are essential equipment in pharmaceutical manufacturing for drug preparation and subsequent production processes. For instance, they can mix raw materials and transform powdered drugs into forms like capsules or tablets.

3. Chemical industry: Mixers play a crucial role in chemical production, used in manufacturing products like coatings, resins, dyes, rubber, and paints. Additionally, they are employed in processes for producing calcium carbonate, silicates, and more for mixing and blending.

Advantages: Most penetrating mixing method, high output, widely applicable.

Disadvantages: Lack of shearing and refining action on materials, limited to simple mixing tasks.

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The process begins with fat extraction to first extract the active substances dissolved in fat. Subsequently, the residue after fat extraction undergoes high-pressure combined with ultrasonic extraction techniques. The application of high pressure can induce changes in internal and external pressure differentials within the raw materials, altering cell structures. When combined with ultrasonic-assisted extraction, the cavitation effect of ultrasound can facilitate the release of target components from the material being extracted, enabling rapid and efficient extraction of active substances from biological sources, significantly increasing the yield. Finally, the active substances extracted through fat and ethanol extraction are combined, dried, and stored at low temperatures, greatly improving the extraction efficiency of active substances.