- Xanthan gum is soluble in cold water, and it exhibits very high viscosity at low shear rate range and relatively low viscosity at high shear rate range.
- 20 Â°C
- cream coloured powder
- Yields, on the dried basis, not less than 4.2% and not more than 5.4% of carbon dioxide (CO2), corresponding to between 91.0% and 117.0% respectively of xanthan gum.
- 311.00 Â°C. @ 760.00 mm Hg
- Xanthane, Polysaccharide Xanthane, Xanthan, Xanthomonas campestris
- cream-colored powder
- 100 %
Xanthan gum is a sugar-like compound made by mixing aged (fermented) sugars with a certain kind of bacteria. It is used to make medicine. Xanthan gum is used for lowering blood sugar and total cholesterol in people with diabetes. It is also used as a laxative.
Xanthan gum Specification
Xanthan gum (CAS NO.11138-66-2) is a polysaccharide secreted by the bacterium Xanthomonas campestris used as a food additive and rheology modifier. It can produce a large increase in the viscosity of a liquid by adding a very small quantity(one percent) of gum In foods, it is most often found in salad dressings and sauces. It helps to prevent oil separation by stabilizing the emulsion, although it is not an emulsifier.
Preparation of Xanthan gum: The Xanthan gum is prepared by inoculating a sterile aqueous solution of carbohydrate(s), a source of nitrogen, dipotassium phosphate, and some trace elements. The medium is well-aerated and stirred, and the polymer is produced extracellularly into the medium. The final concentration of xanthan produced will vary greatly depending on the method of production, strain of bacteria, and random variation. After fermentation that can vary in time from one to four days, the polymer is precipitated from the medium by the addition of isopropyl alcohol, and the precipitate is dried and milled to give a powder that is readily soluble in water or brine.
Uses of Xanthan gum: Xanthan gum is used to prepare water gels usually in conjunction with bentonite clays, and used in oil-in-water emulsions to help stabilise the oil droplets against coalescence. It is also used in frozen foods and beverages, xanthan gum helps create the pleasant texture in many ice creams, along with guar gum and locust bean gum. It also helps thicken commercial egg substitutes made from egg whites to replace the fat and emulsifiers found in yolks. In cosmetics, xanthan gum is used to prepare water gels usually in conjunction with bentonite clays.
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