The invention provides an extraction and purification process for total
phenolic acid in
chaenomeles speciosa. The extraction and purification process includes the following steps that the
chaenomeles speciosa raw medicinal material is smashed,
powder obtained after smashing is subjected to heating
reflux for 3-5 h with an
ethanol solution, and after filtering, filter liquor is collected; the filter liquor is concentrated to a constant weight, extract is obtained, and the content of total
phenolic acid in the extract is measured through the foline-
phenol method; the extract is dissolved with deionized water and then prepared into a
phenolic acid solution for use; the model of
macroporous resin in use is selected, the selected
macroporous resin is packed into a column, and after the resin is pretreated, the phenolic acid solution is subjected to dynamic sample loading adsorption; substances on the surface of the resin and part of water-soluble carbohydrates are washed off with deionized water; finally, the resin is eluted with ethyl
alcohol, phenolic acid adsorbed in the resin is desorbed, and collected eluate is total phenolic acid in
chaenomeles speciosa. According to the extraction and purification method, the process of performing
ethanol extraction and then resin purification is adopted, the extraction rate is high, and the extraction and purification method is suitable for industrial production.