
基本信息:
- 专利标题: 从血浆分离组分Ⅰ和Ⅲ中提取静注人免疫球蛋白的方法
- 专利标题(英):Method for extracting intravenous injection human immunoglobulin from plasma separation component I and plasma separation component III
- 申请号:CN201910625276.1 申请日:2019-07-11
- 公开(公告)号:CN110330565A 公开(公告)日:2019-10-15
- 发明人: 王月 , 方斌 , 彭良俊 , 韩韧 , 喻剑虹 , 李策生 , 刘莹 , 胡勇 , 刘琦 , 董天保 , 龚钦 , 岳胜兰 , 郑宵蓓 , 罗红 , 张云 , 杨丹丹 , 左林 , 梅峰
- 申请人: 国药集团武汉血液制品有限公司
- 申请人地址: 湖北省武汉市江夏区郑店黄金工业园路1号附1号
- 专利权人: 国药集团武汉血液制品有限公司
- 当前专利权人: 国药集团武汉生物制药有限公司
- 当前专利权人地址: 430207 湖北省武汉市江夏区郑店黄金工业园路1号附1号
- 代理机构: 北京市诚辉律师事务所
- 代理人: 范盈
- 主分类号: C07K16/06
- IPC分类号: C07K16/06
The invention relates to a method for extracting intravenous injection human immunoglobulin from a plasma separation component I and a plasma separation component III. The method comprises the steps of (1) precipitating F I+III components: dissolving F I+III precipitate in water for injection according to the concentration of 20%(wt), and precipitating impurity protein in F I+III components underthe condition of 50mM sodium caprylate and pH being 4.9; and (2) further refining IgG components by using ion exchange chromatography, wherein the step of further refining IgG components by using ionexchange chromatography comprises substeps of (a): performing Capto Q chromatography pretreatment on an IgG solution obtained in the step (1) to obtain an IgG solution 1; (b) performing Capto Q XP chromatography treatment on the IgG solution 1 so as to obtain an IgG solution 2; and (c) performing ultrafiltration and concentration on the IgG solution 2 so as to obtain IgG refined liquid.
公开/授权文献:
- CN110330565B 从血浆分离组分Ⅰ和Ⅲ中提取静注人免疫球蛋白的方法 公开/授权日:2021-07-30