Method for preparing icariin

Abstract

The invention relates to a method for preparing icariin, which comprises the following process steps: ethanol extraction, concentration, low-alcohol macroporous resin enrichment, polyamide separation and purification, and recrystalization. When the method is used for producing the icariin, the process is simple, the product yield is high, and the product purity is high. The process is also suitable for producing icariin of different content levels; and the product prepared by the process meets food and medical requirements.

Description

A kind of method for preparing icariin Technical field: The invention relates to a method for preparing icariin, in particular to a process for preparing high-purity icariin by combining macroporous resin and polyamide. Background technique: Epimedium is also called Epimedium arrow leaf, Epimedium heart leaf, fairy spleen, fairy api, scorpion grass, abandoned stick grass, three-branch nine-leaf grass, actinium silk grass, lung meridian grass, trigeminal, triangular Lotus, three-pointed wind, sheep's horn wind, ox horn flower, iron water chestnut, iron pestle, Coptis chinensis, dried chicken tendon, thousand taels of gold, etc. It is the stem and leaf of the Berberidaceae plant Epimedium, Epimedium cordifolia or Epimedium sagitta. Traditional Chinese medicine believes that Epimedium is sweet and warm in nature and taste, and has the effects of nourishing kidney and strengthening yang, and expelling wind and dampness. Epimedium stems and leaves contain icariin and volatile...

AI Technical Summary

Problems solved by technology

However, the adsorption effect of this type of resin in the low alcohol state is not ideal