The growing of guar on the Indo-Pakistan subcontinent can be traced back for centuries. Traditionally, guar has been used as a source of food and as a soil and crop improver. Guar remained a relatively obscure crop until its first industrial trial (in the 1940’s) as an additive in paper making.

Industrial usage of guar gum has grown extensively since that time. In 1954, the estimated consumption
was 2.5 million pounds in the United States. By 1984, that figure had increased to an estimated 75 million pounds (1). Guar’s many useful properties find application in a variety of industries. As a food additive, it emulsifies, binds water, prevents ice crystals in frozen products, moisturizes, thickens, stabilizes, and suspends many liquid-solid systems. It is used in ice cream, cake mixes, cheese spreads, fruit drinks, and dressings. In textile and carpet printing, guar gums thicken the dye solutions which allows more sharply printed patterns to be produced. Guar has been used in explosives for over 25 years as an additive to dynamite for waterblocking. In recent years, it has become the primary gelling agent in water-based slurry explosives. The production of paper is enhanced by an addition of small amounts of guar gum to the pulp. It serves as a fiber deflocculent and dry-strength additive.

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Industrial Applications of Guar

• Food
• Textile and Carpet Printing
• Explosives
• Paper
• Mineral Processing
• Fire Fighting

[spacer] In mineral processing, guar gum functions as a flocculation aid and as a slime depressant. It enhances the separation of the mineral solids from the ore, resulting in a cleaner floated concentrate. Guar is also used as a viscosifying agent in fire fighting retardants to maintain an even distribution f the retardant. The mixture is released from aircraft over a specific ground area for massive fire fighting operations.

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