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| Rheological Behaviour of the Urea Denatured Soybean Protein |
| Jun-Fen Wu, Rui-Min Zhang, Yun Chen, Cui-Yu Yin |
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Abstract This paper reports the study of rheological properties of the urea denatured soybean protein in concentrations of 10 % after 0 mol L-1 ～ 10 mol L-1 urea treatment using a programmable control revolving viscometer (Brookfield RVDV-II+/SSA-SCL27). A theoretical foundation is provided in this paper to study the exploitation and application of soybean protein. The results show that after urea denaturation the soybean protein solution was a typical pseudoplastic fluid while before it was a Bingham character fluid. The viscosity of both decreased with shear rates and increased with urea contents. The change was much obvious at the urea concentration of 4 mol L-1～6 mol L-1. After urea denaturation, the non-Newtonian index of soybean protein solution increased from 0.17 to 0.3 ~ 0.4 at 20°C, which was still fairly low. The stabitily of fluids was pretty bad. The viscosity dropped with temperature significantly.
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| Cite this article: |
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Jun-Fen Wu,Rui-Min Zhang,Yun Chen, et al. Rheological Behaviour of the Urea Denatured Soybean Protein[J]. Journal of Fiber Bioengineering and Informatics, 2009, 2(3): 158-161.
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2009, Vol. 2 
