Method for extracting triterpenoids from sabia japonica

The invention belongs to the technical field of extraction of natural plants, and particularly relates to a method for extracting triterpenoids from sabia japonica. The extraction method comprises the following steps: S1, mixing an extraction agent and sabia japonica, and sequentially carrying out ultrasonic extraction and centrifugation to obtain a crude extract; and S2, adsorbing the crude extract by using macroporous resin, eluting by using an ethanol aqueous solution with the volume fraction of 50-80% as an eluent, and collecting the eluent to obtain the triterpenoids. The extraction method is high in extraction efficiency, the obtained triterpenoids are high in purity, damage to the structures of the triterpenoids is small, the pharmacodynamic activity of the triterpenoids can be kept easily, the operation process is simple, the method can be used for industrial production, and the production cost is low. 本发明属于天然植物的提取技术领域，具体涉及一种清风藤中三萜类化合物的提取方法。该提取方法包括以下步骤：S1、将萃取剂和清风藤混合，依次经超声提取、离心，得到粗提液；S2、将粗提液用大孔树脂吸附，以体积