经乙醇提取后的药渣,滤出浸出液,继续加水进行提取,加水量据其药渣中所含乙醇浓度而定,使乙醇浓度达18～20%,提取时间为2.5小时,实验数据证明,甲醇提取物含量为46%,收率为2.08%。而刺五加膏的质量指标主要以甲醇提取物含量高低为依据。18～20%乙醇提取液中主要成分为蒽 The dregs after ethanol extraction, leach filtrate out, continue to add water for extraction, the amount of water added according to the concentration of ethanol contained in the dregs, the ethanol concentration of 18 to 20%, the extraction time of 2.5 hours, the experimental data show that The methanol extract content was 46% and the yield was 2.08%. The quality index of Acanthopanax senticosus cream is mainly based on the content of methanol extract. The main component in 18 to 20% ethanol extract is