GELLAN GUM Gellan gum is a kind of microbial polysaccharide which is made up of two β-D-Glucose,one β-D-Glucuronic Acid,one α-L-Rhamnose,and it is one of the best microbial polysaccharide recently.Gellan gum has been used as suspension agent,thickener,gelling agent,clarifier,emulsifier,stabilizer,film former,lubricant,tissue cu--lture medium,etc in more than 20 fields,such as food,cosmetics,washing,petroleum explorati-on,medical,ceramics,etc. Our company can produce two kinds of Gellan gum: High-acyl Gellan gum(Natural Gellan gum) and Low-acyl Gellan gum. It is the main difference of this two gum as follows: The gel which is formed by High-acyl Gellan gum is soft and elastic,and has a good adhesive ability; Low-acyl Gellan gum is a product which can be gotten after the high-acyl Gellan gum is specially treated.The gel which is formed by low-acyl Gellan gum is hard,fragile,high-intensity,and the gelling temperature is lower. Low-acyl Gellan gum is mostly used in industry. This two Gellan gum above can be mixed according to different proportion,and more high-acyl Gellan gum is ,better the spring and keeping water of the mixed gum is,and the gelling temperature of this mixed gum is higher than low-acyl Gellan gum. This two kinds of Gellan gum can be respectively used in food and medical.