一、抗肝硬化成分提取:操作手续:取新鲜人胎盘称重,置2～4℃冰箱中,冰冻一周,取出绞碎,于沸水浴上加热提取60分钟,然后加入相当于其容积1/5的1N 盐酸,使混合物的 pH 值为1.8。再加入胃蛋白酶2克,置38℃恒温箱中酶解20小时,取出,用3000转/分的速度离心分离15分钟,取上清液,用阴离子交换树脂使其酸度 First, anti-cirrhosis composition extraction: Procedures: Take fresh human placenta weighing, set 2 ~ 4 °C refrigerator, frozen for a week, remove the minced, heat extraction in a boiling water bath for 60 minutes, and then add the equivalent of its volume 1 / 5 of 1N hydrochloric acid, so that the mixture has a pH of 1.8. 2 g of pepsin was added, and it was digested in a thermostatic chamber at 38° C. for 20 hours, removed, and centrifuged at 3,000 rpm for 15 minutes. The supernatant was taken and the acid was exchanged with an anion exchange resin.