TY - JOUR
T1 - Rheological Behaviour of the Urea Denatured Soybean Protein
AU - Jun-Fen Wu, Rui-Min Zhang, Yun Chen & Cui-Yu Yin
JO - Journal of Fiber Bioengineering and Informatics
VL - 3
SP - 158
EP - 161
PY - 2009
DA - 2009/02
SN - 2
DO - http://doi.org/10.3993/jfbi12200903
UR - https://global-sci.org/intro/article_detail/jfbi/4999.html
KW - Soybean protein
KW - urea
KW - denaturation
KW - rheological properties
AB - 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.