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|Emulsifier, Thickener, Stabilizer, Filler, Binder
Xanthan gum has been accepted by many countries as a food additive. It has become an important stabilizer, suspending agent, emulsifier, thickener, binder and processing raw material with high added value and high quality in the fields of beverages, cakes, jelly, canned food, seafood and meat products processing. It can be summarized as the following aspects.
1) Food thickener stabilizer with acid and salt resistance
It is used in various foods such as fruit juice drinks, concentrated fruit juices, and seasonings (such as soy sauce, oyster sauce, salad dressing). The stabilizing effect of xanthan gum is significantly better than other gums, and it has strong thermal stability. General high-temperature sterilization will not affect it. It can be used in various fruit juice drinks, pulp drinks, vegetable protein drinks, etc., with a dosage of 0.08-0.3 . Xanthan gum's excellent salt resistance, acid and alkali resistance can completely replace the traditional thickener starch in soy sauce. It can overcome the shortcomings of starch precipitation, and can make soy sauce fine and uniform, improve wall-hanging and coloring properties, and extend shelf life . For jam, bean paste and other flavored sauces, xanthan gum is used as a thickening stabilizer to make the sauce uniform, good mixing, non-caking, easy to fill, and improve the taste.
2) Food emulsifier
Used as an emulsifier in various protein beverages and milk beverages to prevent oily water layer and improve protein stability, prevent protein precipitation, and also use its emulsifying ability as a foaming agent and foam stabilizer, such as beer manufacturing, etc. . After adding 0.02% xanthan gum to the emulsification system based on legume protein, the emulsification is obviously improved, and the mixed system has high shear rate and heat-induced high viscosity characteristics.
3) Food filler
As a stable high-viscosity filler, it can be widely used in the processing of all kinds of snacks, bread, biscuits, candies and other foods. Without changing the traditional flavor of the food, it can make the food have better shape retention and longer The shelf life and better taste are conducive to the diversification and industrial scale production of these foods. In the production of various frozen foods, xanthan gum has the functions of preventing its loss of water, delaying aging, and extending the shelf life.
4) Food emulsion stabilizer
Used as an emulsion stabilizer in frozen foods. In ice cream and ice cream, xanthan gum can adjust the viscosity of the mixture to make it have a uniform and stable composition, and the tissue is slippery. Due to the relationship between the viscosity of xanthan gum and temperature, it has plasticity and shear Therefore, the viscosity decreases and the resistance decreases during the processing operation, which is beneficial to the process. During the cooling and aging stage, the viscosity recovers, which is beneficial to increase the expansion rate, prevent the formation of large ice crystals in the ice cream tissue, and make the ice cream smooth and delicate. At the same time, the freeze-thaw stability of the product is improved, and the cream and water are evenly mixed during melting, and no slurry separation phenomenon occurs. The general aging time is 2～3h. The dosage is 0.2% to 0.4%.
5) Food adhesive
Xanthan gum can cross-link some water-soluble powder substances, such as sodium alginate, casein, methyl cellulose and polyethylene glycol cellulose sodium salt, to make a binder. This adhesive is used in food processing to improve texture and increase film-forming properties. This property of xanthan gum can be used to make granular pastes. Compared with traditional pastes, pastes made of xanthan gum have low dispersibility, high uniformity and solubility, good fluidity and filling performance, and excellent solid storage properties due to non-cohesiveness.