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The xanthan gum jelly aqueous solution has a high viscosity under static or low shear action. Under high shear action, the viscosity drops sharply, but the molecular structure does not change. When the shearing force is eliminated, the original viscosity will be restored immediately. The relationship between shear force and viscosity is completely plastic. The pseudoplasticity of xanthan gum jelly is very prominent, and this pseudoplasticity is extremely effective in stabilizing suspensions and emulsions.
Xanthan gum jelly has a good suspension effect on insoluble solids and oil droplets. Xanthan gum sol molecules can form super-bonded ribbon-like spiral copolymers, forming a fragile glue-like network structure, so it can support the shape of solid particles, droplets and bubbles, showing strong emulsification stabilization and high suspension ability.
Xanthan gum jelly solution has the characteristics of low concentration and high viscosity (the viscosity of 1% aqueous solution is equivalent to 100 times that of gelatin), and it is an efficient thickening agent.
Xanthan gum jelly can quickly dissolve in water with good water solubility. Especially it can dissolve in cold water, which saves complicated processing and is convenient to use. However, due to its strong hydrophilicity, if the water is added directly and the stirring is not sufficient, the outer layer will absorb water and expand into a micelle, which will prevent water from entering the inner layer, thereby affecting its function. Therefore, it must be used correctly. After mixing the dry powder of xanthan gum or with salt, sugar and other dry powder auxiliary materials, slowly add it to the stirring water to make a solution for use.
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