What is the production process of Astragalus membranaceus extract ?

The production process of Huangqi extract is a complex and refined process, mainly including raw material preparation, pretreatment, extraction, purification, drying, and finished product preparation. The following is an overview of a typical production process for Astragalus membranaceus extract:
1、 Raw material preparation
Material selection: Select high-quality Astragalus membranaceus (Fisch.) Bge. as the raw material to ensure the quality and active ingredient content of the raw material.
2、 Preprocessing
Cleaning: Clean Huangqi to remove surface dirt, impurities, etc.
Drying: Dry the cleaned Astragalus membranaceus to reduce moisture content and facilitate subsequent crushing and extraction.
Crushing: Grind the dried Astragalus membranaceus to a certain particle size (such as powder), so that the effective ingredients can be more fully dissolved during the extraction process.
3、 Extract
Water extraction method:
Soaking: Mix the crushed astragalus powder with water in a certain proportion and soak for a period of time.
Heating extraction: Heating is used to dissolve the active ingredients in Huangqi in water. This process may need to be repeated multiple times to improve extraction efficiency.
Merge extraction solution: Combine the extraction solutions obtained from multiple extractions.
Concentrate: Remove most of the water from the extract by evaporation or other methods to obtain a concentrated solution.
Other extraction methods: In addition to water extraction, ethanol reflux extraction, ultrasonic extraction, supercritical fluid extraction, and other methods can also be used for the extraction of Huangqi. These methods each have their own advantages and disadvantages, and can be chosen according to actual needs.
4、 Purification
Alcohol precipitation method: Adding organic solvents such as ethanol to the concentrated solution to precipitate active ingredients such as astragalus polysaccharides. Multiple alcohol precipitation operations can remove low molecular impurities and other impurities, improving the purity of the product.
Other purification methods: Ion exchange, membrane separation, and other methods can also be used to purify Huangqi extract.
5、 Dry
The purified astragalus extract is dried. Generally, spray drying, vacuum drying and other methods are used to remove water to obtain solid powder astragalus extract.
6、 Finished product preparation