The influence of emulsifier concentration on the rheological properties of an oil-in-water emulsion stabilized by an anionic soap

1968 ◽  
Vol 20 (6) ◽  
pp. 439-449 ◽  
Author(s):  
E. SHOTTON ◽  
S. S. DAVIS
2012 ◽  
Vol 28 (1) ◽  
pp. 109-113 ◽  
Author(s):  
Vahid Hoshyargar ◽  
Azam Marjani ◽  
Farzad Fadaei ◽  
Saeed Shirazian

Author(s):  
Oladayo Adeyi ◽  
Daniel Imwansi Ogiem Ikhu-Omoregbe ◽  
Victoria A. Jideani

The influence of vinegar concentrations on the rheological properties of 40% (w/w) sunflower oil-in-water emulsions stabilized with 7% (w/w) gelatinized bambara groundnut flour (BGNF) was investigated. The rheological properties of interest were steady shear, time dependent and viscoelastic characteristics. Rheological characterizations of the emulsions were carried out using a shear rate controlled rheometer. Both emulsions with and without vinegar were pseudoplastic, thixotropic and viscoelastic fluids. Vinegar however, significantly (p < 0.05) affected rheological properties of BGNF-stabilized emulsion. Presence of vinegar in the emulsion decreased extent of thixotropy, pseudoplasticity and viscoelasticity of BGNF-stabilized emulsions. The results indicated that the rheological properties of BGNF-stabilized emulsion can be controlled and manipulated using vinegar however, the presence of vinegar in BGNF-stabilized emulsion may be deleterious to the emulsion. The result provided the information to understand the influence of vinegar on the rheological properties of BGNF-stabilized emulsions for product and process development.


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