Effect of Electrostatic Interaction on Reverse Micellar Extraction of Large Molecular Weight Proteins

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Yoshinobu Kawano²  Isao Komasawa¹  Koichiro Shiomori²  Ryoichi Kuboi¹ 

[1] Department of Chemical Science and Engineering, Graduate School of Engineering Science, Osaka University;Department of Applied Chemistry, Miyazaki University

关键词: Reverse Micelles;    Extraction;    Protein;    Electrostatic Interaction;    AOT;   

DOI  :  10.1252/jcej.33.800

来源: Maruzen Company Ltd

【 摘 要 】

References(10)Cited-By(10)Reverse micellar extraction of various proteins of large molecular weight and oligomeric proteins, as well as small ones, was carried out using conventional AOT reverse micellar extraction systems at various pH values. The conformational change of the proteins by electrostatic interaction with AOT was also measured using a CD spectrum. Extraction behavior and conformational change of the proteins were discussed from their electric charge properties and electrostatic interaction between protein and AOT. Most of the proteins were effectively extracted into the reverse micellar phase at around zero surface net charge. Formation of aggregates and denaturation of proteins were observed in the region of positive net charge higher than 10.

【 授权许可】

Unknown