Gum Arabic (E414, also known as gum Arabic) has a complex molecular structure, mainly including aldose, galactose, glucuronic acid, etc. It is a kind of natural vegetable glue, which is obtained from a tree called Acacia, and is made by congealing the sap of the tree. Good quality gum arabic is amber in color, and the particles are large and round, mainly produced in Africa. At present, there is also powdered gum arabic obtained through the refining process, which is more convenient to use.