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Xanthan Gum in Chemical Applications
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Xanthan Gum in Chemical Applications
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From Silverson Machines, Inc.
Xanthan gum is a polysaccharide widely used for its thickening and stabilizing effect on emulsions and suspensions, particularly in the Food industry. It is also used in many chemical applications such as adhesives, ceramic glazes, drilling muds, foundry compounds, latex emulsions, lubricants, paints and coatings, paper, pesticides, textiles etc.
Xanthan gum can be dispersed into hot or cold systems, and many grades are available, including some designed for easy dispersion. Xanthan gum powders have a strong tendency to form lumps when added to water and a number of dispersion and hydration methods are used to try to overcome this. These vary according to the scale of production, other ingredients used etc. but include:
• Slow addition of the powder into the vortex in an agitated vessel. Once dispersed mixing continues to allow the product to hydrate.
• Xanthan gum may be premixed with other powdered ingredients which reduces the formation of agglomerates by separating the particles.
• Similarly the gum may be dispered into non-aqueous phase liquids such as oils, alcohols or glycols. This is then added to the aqueous phase allowing the gum to hydrate
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Topics of Interest
Ingredients such as gums, starches, alginates etc. are found in many soft drinks including fruit juices, concentrated juice drinks, flavored milks and carbonated drinks. These “functional” ingredients...
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Yogurts (and other cultured milk desserts) are produced by fermentation of milk by the addition of certain types of bacteria, e.g. Streptococcus thermophilus and Lactobacillus bulgaricus. Generally a...
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Most tinned dog and cat food is based on a slurry of meat or meat derivatives and cereals. Some products also contain fish. The slurry, which may be extruded, rolled or pressed into chunks, is then...
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Flavor Emulsions are used in a wide range of foods, carbonated soft drinks and dairy products. A typical flavor emulsion contains water, essential oils and emulsifiers and stabilizers such as gum...
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