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个人信息Personal Information
副教授
博士生导师
硕士生导师
性别：男
毕业院校：中国协和医科大学
学位：博士
所在单位：生物工程学院
学科：生物化工. 微生物学. 微生物与生化药学
办公地点：辽宁省大连市高新园区凌工路2号大连理工大学西部校区生物工程学院309室
联系方式：辽宁省大连市高新园区凌工路2号大连理工大学生物工程学院
电子邮箱：yshdong@dlut.edu.cn
Extraction and purification of IgG by hydrophilic organic solvent salting-out extraction
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论文类型：期刊论文
发表时间：2016-02-15
发表刊物：JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
收录刊物：SCIE、EI、PubMed
卷号：1012
页面范围：137-143
ISSN号：1570-0232
关键字：Active retention; Immune globulin; Purification; Recovery; Salting-out extraction systems; Structural constant
摘要：The distribution of IgG in different salting-out extraction systems (SOESs), including ethanol/K2HPO4, Na2CO3, and trisodium citrate, was investigated. The SOESs that were composed of 20% K2HPO4 (w/w)-14% ethanol (w/w), 19% Na2CO3 (w/w)-13% ethanol (w/w) and 25% trisodium citrate (w/w)-19% ethanol (w/w) showed satisfactory results, with IgG recovery rates as high as 97.4%, 93.1%, and 90.2%, respectively. ELISA, CD and IR analyses confirmed the active retention and structural constant of IgG in the K2HPO4-ethanol system. An optimized system that consisted of 14% ethanol (w/w)-20% K2HPO4 (w/w) (pH 7.0) was selected for extracting active plasma proteins directly from pig plasma. As a result, recovery rates as high as 95.7% for IgG and 93.0% for albumin were achieved. In addition, some contaminating proteins were also removed by this system, which may provide a new alternative method for the separation and purification of immunoglobulin. (C) 2016 Elsevier B.V. All rights reserved.