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Guar gum

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25 March 2016
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Guar gum, also called guaran, is a galactomannan. It is primarily the ground endosperm of guar beans. The guar seeds are dehusked, milled and screened to obtain the guar gum. It is typically produced as a free-flowing, off-white powder.

 Chemically, guar gum is a polysaccharide composed of the sugars galactose and mannose.It remains stable in solution over pH range 5-7 and Above 80° the final viscosity is slightly reduced.

 

The largest market for guar gum is in the food industry.  In Europe, guar gum has EU food additive code E412. Xanthan gum and guar gum are the most frequently used gums in gluten-free recipes and gluten-free products.

Applications include:

  • In baked goods, it increases dough yield, gives greater resiliency, and improves texture and shelf life; in pastry fillings, it prevents "weeping" (syneresis) of the water in the filling, keeping the pastry crust crisp. It is primarily used in hypoallergenic recipes that use different types of whole-grain flours. Because the consistency of these flours allows the escape of gas released by leavening, guar gum is needed to improve the thickness of these flours, allowing them to rise as a normal flour would.
  • In dairy products, it thickens milk, yogurt, kefir, and liquid cheese products, and helps maintain homogeneity and texture of ice creams and sherbets. It is used for similar purposes in plant milks.
  • For meat, it functions as a binder.
  • In condiments, it improves the stability and appearance of salad dressings, barbecue sauces, relishes, ketchups and others.
  • In canned soup, it is used as a thickener and stabilizer.
  • It is also used in dry soups, instant oatmeal, sweet desserts, canned fish in sauce, frozen food items, and animal feed.
  • The FDA has banned guar gum as a weight loss pill due to reports of the substance swelling and obstructing the intestines and esophagus

 

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