Extraction Of Polysaccharides

Ultrasonic Extraction of polysaccharides is the use of ultrasonic waves to produce high speed, strong cavitation effect and stirring effect, which makes the cell wall of traditional Chinese medicine plants easy to break, and is conducive to the dissolution of polysaccharide.To improve the extraction efficiency.

1. Pre-treatment: Clean fresh mushrooms, remove impurities such as roots and inedible parts, and then slice or crush them.

2. Ultrasonic assisted extraction: The pulverized mushroom powder is mixed with water in a certain proportion, and the ultrasonic assisted extraction equipment is used to extract at a set temperature (such as 60 ° C) and time (such as 30 minutes). The cavitation effect of ultrasonic waves helps to break down the cell walls of mushrooms and release polysaccharides.

3. Centrifugal separation: After ultrasonic extraction, the solid residue in the extraction liquid is separated by centrifugation.

4. Alcohol precipitation: Add an appropriate amount of ethanol or other organic solvents to the extraction solution after centrifugation for precipitation, and the polysaccharide is insoluble in ethanol, so that it can be separated by precipitation.

5. Washing: The precipitated polysaccharide is repeatedly washed by solvents such as ethanol, acetone or ether to remove impurities such as protein and pigment.

6. Drying: The washed polysaccharide is dried by freeze-drying or spray drying and other methods to obtain polysaccharide powder.

 

3.Low energy consumption: Compared with traditional thermal extraction methods, ultrasonic extraction can achieve similar or better extraction results at lower energy consumption.

4. Easy operation: ultrasonic extraction is simple and easy to control, and can achieve automation and large-scale production.

5. Mild conditions: Ultrasonic extraction can be carried out at lower temperatures, which is conducive to protecting the heat-sensitive active ingredients from being destroyed.

6. Improve the extraction rate: the mechanical vibration and cavitation of ultrasonic help to break the plant cell wall, so that the active ingredients are more easily dissolved out, thus improving the extraction rate.

7. Reduce the amount of solvent: ultrasonic assisted extraction can reduce the amount of solvent used and is friendly to the environment.

8. Ultrasonic extraction technology has been widely used in food, pharmaceutical and nutraceutical industries because of its high efficiency, speed and easy operation.

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