Q：What’s the structure of soluble soy polysaccharides?

A：Structure of soluble soy polysaccharides: The backbone consists of a long chain of polyglucone galacturonic acid (GN) and a short chain of polygalacturonic acid (RG). The neutral side chain consists of a homogalactosyl group and an arabinose group. The arabinose is located in the side chain of the poly-rhospose galacturonic acid backbone. The polygalacturonic acid short chain is modified by arabinose, xylose, trehalose and glucose. The feature is that the side chains are long and the main chain is short. The overall structure is shown below:

Q：How does soluble soy polysaccharides stabilize protein matters?

A：The main principle of soluble soy polysaccharides to wrapped around the casein, and the steric hindrance formed by the adsorption of the thick layer is the main factor for stabilizing casein, and then the protein is further stabilized by electrostatic repulsion.