The invention provides a
honeysuckle extract and a preparation method for extracting chlorogenci acid. The method has the advantages of good
repeatability and good stability; by using the method, the content of an
active component can be improved, a large amount of impurities are removed, raw materials are high in yield and low in cost; and the method is suitable for industrial production. The percentage of the main
active component chlorogenci acid in the
honeysuckle extract is 30%. The preparation process of the
honeysuckle extract comprises the following steps: adding water the volume of which is 8-20 times as large as that of taken honeysuckle medicinal material in the taken honeysuckle medicinal to extract for 2-4 times for 0.5-1.5 hours each time; regulating the pH value of the extract to 1-6; and on a
large pore absorption resin column, eluting impurities with water firstly, then eluting with 10-70%
ethanol, colleting
ethanol eluent, recovering the
ethanol, concentrating, regulating the pH value of a concentrated liquid to 1-6, adding
ethyl acetate for extraction, recovering the
ethyl acetate, concentrating and
drying. By using the method, the content of the
active component in the extract is improved, the
curative effect is improved, a large amount of impurities are removed, the problem of large
moisture absorption commonly occurring in
Chinese patent medicines is solved, and side effects are reduced.