Extraction Method of Astragalus Polysaccharide —— Squeezing Method

Does the subject want to ask "what are the squeezing steps in the extraction method of Astragalus polysaccharides"?

1. First, grind the dried Astragalus granules with a grinder or stirrer to make them uniform.

2. Secondly, the crushed astragalus granules are soaked in boiling water for 2-3 hours, then filtered to obtain an extract, and the raw materials are repeatedly washed.

3. Then press the extract with a press to release polysaccharide components, and then collect the press liquid.

4. Finally, add the squeezed liquid into 95% ethanol, cool overnight, and collect the precipitate. After multi-step dissolution, filtration, concentration and recrystallization, pure astragalus polysaccharide can be obtained.