Interfacial Properties between Aqueous and Organic Phases in AOT Reversed Micellar System for Lysozyme Extraction

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

YASUHIRO NISHII²  KATSUROKU TAKAHASHI¹  SUSUMU NII¹  TAKUMI KINUGASA²  KAZUHISA OKADA¹ 

[1] Department of Chemical Engineering, Nagoya University;Department of Applied Chemistry and Biotechnology, Niihama National College of Technology

关键词: Interfacial Tension;    Reversed Micelles;    Lysozyme;    Extraction;    Hydration;   

DOI  :  10.1252/jcej.34.501

来源: Maruzen Company Ltd

【 摘 要 】

References(17)Cited-By(5)The interfacial tensions of several solutions of reversed micellar systems used in lysozyme extraction were measured by drop weight and pendant drop methods. The organic phase was 2,2,4-trimethylpentane containing sodium bis(2-ethylhexyl)sulfosuccinate (AOT), and the aqueous phase was a solution of lysozyme and KCl, NaCl or CaCl2. The effects of salt concentration and salt type on the interfacial tension were studied. The hydration of cation associated with AOT affects interfacial properties to some extent. At the same ionic strength, the interfacial flexibility decreased with type of salt, NaCl > CaCl2 > KCl. This order corresponds to that of the cation's hydration number. Overall mass-transfer coefficients of lysozyme were also measured under various salt concentrations of three salt systems and were expressed by a single curve when plotted against interfacial tension.

【 授权许可】

Unknown