The ultrasonic method utilizes the mechanical fragmentation and cavitation effects of ultrasonic waves to make plant cell tissues more easily fragmented, thereby accelerating the diffusion rate of tea polyphenol extracts from tea leaves to solvents.

Ultrasonic tea extraction equipment is a modern production line that integrates extraction and concentration. It is designed specifically for the extraction and concentration of effective ingredients such as tea polyphenols, theaflavins, and tea polysaccharides in tea, and meets GMP standards. It is widely used in the food, pharmaceutical, and health product industries, supporting laboratory trials to industrial production scenarios.

Our multifunctional extraction, concentration, and recycling pilot equipment is one of the devices sold in the market, especially suitable for use in scientific research institutions, colleges, and factories. It can be used for the extraction and concentration of valuable drugs or low-temperature extraction and concentration of fresh plant products. It has been successfully applied in factories. The equipment has successfully entered the foreign market due to its versatility, good performance, compact structure, and excellent processing.

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Ultrasonic extraction technology generates cavitation effect through high-frequency vibration, forming tiny bubbles in the liquid and instantly bursting, producing local high temperature and high pressure, accelerating the separation of target substances from the raw material. This process does not require high temperature and pressure, and can maximize the retention of active ingredients, especially suitable for the extraction of thermosensitive substances such as plant essential oils, biological enzymes, and CBD oil. Taking traditional Chinese medicine extraction as an example, the traditional water decoction method takes several hours, while the ultrasonic extraction equipment only takes 10-30 minutes. The extraction rate is increased by 20% -35%, and the residual solvent content is less than 0.1%, which meets the international pharmacopoeia standards.

In the food industry, ultrasonic extraction equipment is also widely used. For example, in tea polyphenol extraction, the equipment can shorten the extraction time from 4 hours in traditional processes to 1 hour, increase the purity of tea polyphenols to over 95%, and reduce the content of impurities such as caffeine. In the field of chemical engineering, ultrasonic extraction tanks can achieve complex processes such as dispersion of nanomaterials and demulsification of crude oil, with processing efficiency increased by more than 50% compared to traditional equipment.

working principle
Extraction stage: Based on the cavitation effect of ultrasound, high-frequency vibration destroys the cell wall of tea leaves, accelerating the dissolution of effective ingredients (same as the principle of ultrasound extraction)
Concentration stage: Vacuum depressurization concentration technology is used to reduce the boiling point of the solvent in a negative pressure environment, achieve low-temperature concentration, and protect the activity of thermosensitive components

Product features of Tea ultrasonic extraction unit  
The unit consists of an extraction tank, tubular heater, evaporating dish, condenser, oil separator, oil collector, pharmaceutical pump, metering tank, liquid storage tank, filter, vacuum pump, distribution cabinet, etc. Both the extraction tank and the top steam outlet of the evaporator are equipped with frothers. Units without steam heating can be equipped with a thermal oil system.
2. It can perform hot reflux cycle extraction, concentration, conventional extraction, concentration, water precipitation (alcohol precipitation), percolation and other operations.
3. Able to work under negative pressure, normal pressure, and positive pressure conditions. Can adapt to water extraction, alcohol extraction or solvent extraction, and meet the requirements of "GMP".
4. The unit has great advantages in multifunctionality, high efficiency, energy saving, and wide operating range. In terms of overall performance,. It is a pilot equipment for natural plant medicine extraction.
process flow
Raw material pretreatment → ultrasonic extraction → solid-liquid separation → vacuum concentration → solvent recovery → finished product
Core steps description:
Ultrasonic extraction: After the tea leaves are crushed, the effective components are extracted under the action of ultrasonic waves, and the extracted liquid enters the separation system

Solid liquid separation: Centrifuge or filter to remove tea residue, and the filtrate enters the concentration stage
Vacuum concentration: The extract enters the concentration tank with a vacuum degree of -0.05~-0.09MPa. The secondary steam is recovered by the condenser, and the condensate flows back to the extraction tank as a new solvent for recycling. Finally, it is concentrated to the target specific gravity (up to 1.4)
Solvent recovery: Equipped with a condensation recovery system, organic solvents can be reused multiple times, reducing production costs

Drying and molding: vacuum freeze drying or spray drying to obtain tea polyphenol powder (purity ≥ 95%)

Conduct a single factor experiment on extraction temperature, extraction time, solid-liquid ratio, and extraction stage settings, and conduct ultrasonic extraction based on the solid-liquid ratio, ultrasonic power, ultrasonic time, and extraction stage settings;

Advantages
Comparison of specific performance of advantage dimensions with traditional equipment
Integrated production extraction, concentration, and solvent recovery are completed in one step, following traditional methods
feature
Efficiency improvement: The work efficiency is increased by 60% -300% compared to ordinary extraction equipment
Extraction rate: The extraction rate of active ingredients has increased by more than 45% compared to traditional processes
Temperature control: Reduce the extraction temperature by 20-30 ℃ and concentrate at a low temperature throughout the entire process
Energy consumption cost: reduce energy consumption by 30%, high solvent recovery rate
Automation: PLC fully automatic control, touch screen dynamic monitoring

Industry application: Extracting experts covering multiple fields
1. In the field of biomedicine: In antibiotic extraction, ultrasonic extraction equipment can shorten the extraction time from 8 hours to 2 hours, increase the extraction rate to 95%, and reduce antibiotic degradation. The product purity meets the standards of the European Pharmacopoeia.
2. In the field of food processing: In plant protein extraction, equipment can achieve rapid extraction of soy protein isolate, with a protein content of over 90%, an increase of 15% compared to traditional processes, and a 20% reduction in energy consumption.
3. In the field of chemical materials: In the dispersion of nanomaterials, ultrasonic extraction tanks can disperse particles such as carbon nanotubes and titanium dioxide to the nanoscale with a dispersion uniformity of 99%, meeting the needs of high-end coatings and battery materials