Xanthan, Gellan, Pullulan & Curdlan are produced by biotechnology. Xanthan gum is a heteropolysaccharide produced by fermentation using the bacterium Xanthomonas campestris. Gellan gum is the generic name for extra polysaccharide elaborated by Pseudomonas elodea. Pullulan is a natural polysaccharide produced from starch by cultivating a lack yeast called Aureobasidium pullulans. While Alcaligenes faecalis varmyxogenes micro-organism produced a polysaccharide gum called Curdland.

Xanthan gum serves as a thickener as well as suspening agent while Gellan is able to produce gels. The hardness of the gel will depend on whether the polysaccharide is cultured in substituted or unsubstituted form. You can find excellent & unique film formality & adhesive properties in Pullulan. Curdlan is capable of forming a gel when heated in an aqueous suspension.

Applications
· Salad dressings · Sauces · Toothpaste · Cosmetics
· Paints · Beverage · Coating agent · Meat products
· Surimi-based products · Edible film · Fruit Juices