The role of the cationic surfactants in concentrated emulsions stabilized with globular protein

被引：7

作者：

Derkach, S. R. ^{[1
]}

Kuhkushkina, A. N. ^{[1
]}

Levachov, S. M. ^{[2
]}

Matveenko, V. N. ^{[2
]}

机构：

[1] Murmansk State Tech Univ, Dept Chem, Sportivnaya 183010, Murmansk, Russia

[2] Moscow MV Lomonosov State Univ, Colloid Chem Dept, Fac Chem, Moscow 119992, Russia

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2011年 / 391卷 / 1-3期

基金：

俄罗斯基础研究基金会;

关键词：

Rheology; Emulsions; Visco-elasticity; Cationic surfactant; Protein; YIELD-STRESS; RHEOLOGICAL PROPERTIES; DROPLET SIZE; FOAMS; ELASTICITY; INTERFACES; BEHAVIOR; MODEL;

D O I：

10.1016/j.colsurfa.2011.09.010

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The rheology of highly concentrated emulsions stabilized with bovine serum albumin and the same protein with the addition of two different cationic surfactants was studied. These materials demonstrate non-Newtonian behavior with zero-shear-rate Newtonian viscosity and rather abrupt decrease of viscosity in a narrow shear stress range. Emulsions also possess elastic properties and storage modulus does not depend on frequency. The addition of low-molecular-mass surfactant leads to the modification of all theological properties: the viscosity, storage modulus, and yield stress decrease. Variation of the added surfactant in a very wide range shows that there is its threshold concentration, at which a surfactant substitutes protein in the interfacial layers. It was supposed that some peculiarities of emulsions under study are explained by their wide size distribution. As a result, these emulsions are possibly not "compressed" and their elasticity is mainly due to interlayer interactions rather than interfacial tension. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：105 / 111

页数：7

共 38 条

[1]

Abduraghimova L. A., 1955, KOLLOID ZH, V17, P184

[2]

Ananthapadmanabhan K.P., 1993, INTERACTIONS SURFACT, P319, DOI DOI 10.1080/01932699408943565

[3]

Babak VG, 2001, PROG COLL POL SCI S, V118, P216

[4]

Barnes HA, 2007, APPL RHEOL, V17

[5] The rheological and microstructural characterisation of the non-linear flow behaviour of concentrated oil-in-water emulsions [J].

Bower, C ;

Gallegos, C ;

Mackley, MR ;

Madiedo, JM .

RHEOLOGICA ACTA, 1999, 38 (02) :145-159

[6] Rheology of emulsions stabilized by solid interfaces [J].

Bressy, L ;

Hébraud, P ;

Schmitt, V ;

Bibette, J .

LANGMUIR, 2003, 19 (03) :598-604

[7] Viscoelasticity of concentrated emulsions stabilized by bovine serum albumin in the presence of a nonionic surfactant [J].

Derkach, S. R. ;

Levachev, S. M. ;

Kukushkina, A. N. ;

Novoselova, N. V. ;

Kharlov, A. E. ;

Matveenko, V. N. .

COLLOID JOURNAL, 2007, 69 (02) :152-158

[8] Non-Newtonian behavior of concentrated emulsions stabilized with globular protein in the presence of nonionic surfactant [J].

Derkach, S. R. ;

Levachev, S. M. ;

Kukushkina, A. N. ;

Novoselova, N. V. ;

Kharlov, A. E. ;

Matveenko, V. N. .

COLLOID JOURNAL, 2006, 68 (06) :700-706

[9] Rheology of emulsions [J].

Derkach, Svetlana R. .

ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2009, 151 (1-2) :1-23

[10] Rheological properties of concentrated emulsions stabilized by globular protein in the presence of nonionic surfactant [J].

Derkatch, S. R. ;

Levachov, S. M. ;

Kuhkushkina, A. N. ;

Novosyolova, N. V. ;

Kharlov, A. E. ;

Matveenko, V. N. .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2007, 298 (03) :225-234

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