Gum tragacanth is one of the most widely used natural emulsifiers and thickeners available to the food, drug, and allied industries. The high viscosity imparted to water by the gum makes it useful for preparing aqueous suspensions of insoluble substances. Gum tragacanth has the food additive E number E413. Gum tragacanth is the dried gummy exudation of several species of Astragalus (family Leguminosae).
Usage of Gum tragacanth:
Gum tragacanth is widely used in many industries because of its stability in the presence of heat and acidity and because it is an effective emulsifying agent with an extremely long shelf-life.
Gum tragacanth is widely used in the preparation of:
- salad dressings,
- relishes,
- sauces,
- condiment bases,
- sweet pickle liquors,
- soft jellied products such as gefilte fish,
- thick broths,
- beverage and bakery emulsions,
- ices and sherbets,
- bakery toppings and fillings,
- and confectionery cream centres.
Condiments and sauces are important product groups in which acid stability and long shelf-life are important. Vinegar is usually a primary ingredient and gum tragacanth acts as an emulsion stabiliser and thickener of the aqueous phase for such ingredients as spice flavourings and natural flavour extracts.
Gum tragacanth is used to stabilise bakery emulsions and fillings in which whole fruit is suspended in thick jelly, giving clarity, brilliance, and improved texture.
Gum tragacanth has been used as a stabiliser in ice cream mixes at concentrations of 0.2–0.35%, giving smooth body and texture. It is also used with frozen fruits that are to be suspended in the ice cream.
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