Soluble soybean polysaccharides(SSPs) were extracted with subcritical water and their rheological properties and viscosity were studied under varying conditions of concentration,metal ion addition,pH and sucrose addition.The results showed that SSPs solution was pseudoplastic fluid.The fluid type did not change with concentration,pH and the presence of Na+ and Ca2+.Both metal ions had little effect on the viscosity of SSPs solution,which revealed an increase with increasing concentration,sucrose addition an...