Processing Flow Chart

5.1 Undehusked Guar Splits

  The gum is commercially extracted from the seeds essentially by

  a mechanical process of roasting, differential attrition, sieving and polishing.

  The seeds are broken and the germ is separated from the endosperm.

  Two halves of the endosperm are obtained from each seed and are known as Undehusked Guar     Splits. 

5.2 Refined Guar Splits

Refined Guar Splits are obtained when the fine layer of fibrous material, which forms the husk, is removed

and separated from the endosperm halves by polishing. 

5.3 Guar Powder

The refined Guar Splits are then treated and finished into powders by a variety of routes and processing

techniques depending upon the end product 

5.4 Guar seed Extract

Guar seed consists of three parts, germ (43-47%), endosperm (35-42%) and the husk (1 17%). Extracts from Guar

seed include Guar Split/Gum (29%), Korma (30-35%) and Churi (35-40%). Guar split/gum is further refined to Guar

powder. The by-product of Guar Gum industry consisting of the outer seed coat and germ material is called

guar meal. The Guar meal after gum Extraction is a potential source of protein and contains about 42% crude

protein, which is one and a half times more than the level of protein in guar seed. 

5.5 Guar gum & Splits

Approximately 90% of total Guar produce is used for production of Guar Gum and rest is used for culinary

purposes and cattle feed etc. Guar gum, also called guaran, is a galactomanan. Guar gum is produced from

the endosperm, which is about 35-42 percent of the guar seed mass, and mainly consists of gum Poly groups of

monogalactoses (a type of sugar). Different grades are made based on purity and present viscosity of powers in

water. Guar gum has almost 8 times the thickening power as corn starch, and is used in dressings, sauces, milk

products, and baking mixes.

5.5. (a) Specifications of Guar Splits:

Attribute	Specification
Gum Content	80-85%
Dehusked Splits	90% Minimum
Protein	5% Maximum
Ether Extract	0.6% Maximum
Ash	1% Maximum
Moisture	10% Maximum
Crude Fibre	1.5% Maximum
Degree of refining	Double refined