PMID: 11311721Apr 20, 2001Paper

Solid-like mechanical behaviors of ovalbumin aqueous solutions

International Journal of Biological Macromolecules
S Ikeda, K Nishinari

Abstract

Flow and dynamic mechanical properties of ovalbumin (OVA) aqueous solutions were investigated. OVA solutions exhibited relatively large zero-shear viscosity values under steady shear flow and solid-like mechanical responses against oscillating small shear strains, that is, the storage modulus was always larger than the loss modulus in the examined frequency range (0.1--100 rad s(-1)). These results suggest that dispersed OVA molecules arranged into a colloidal crystal like array stabilized by large interparticle repulsive forces. However, marked solid-like mechanical behaviors were detected even when electrostatic repulsive forces among protein molecules were virtually absent, which could not be explained solely on the basis of conventional Derjaguin--Landau--Verwey--Overbeek (DLVO) theory. Large non-DLVO repulsive forces seem to stabilize native OVA aqueous solutions.

References

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Citations

Jul 20, 2006·Journal of the Royal Society, Interface·Katherine M N OatesRalph H Colby
Dec 6, 2011·Annual Review of Food Science and Technology·Shinya Ikeda, Qixin Zhong
May 13, 2017·International Journal of Biological Macromolecules·Zhouyi XiongQi Xu
Jun 11, 2021·The Journal of Physical Chemistry. B·Rachel B HutchinsonSilvia Cavagnero
Aug 25, 2004·Langmuir : the ACS Journal of Surfaces and Colloids·Qixin ZhongOrlin D Velev

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