(Format: 50 grs)
CAS Nº: 9000-30-0
EC Nº: 232-536-8
Synonyms: Goma jaguar. Guar flour. Guar galactomannan. Cyamopsis gum. E-412.
Molecular formula: (C6H12O6) n
Molecular Weight: Approx. 220.000
Physical-Chemical Data: beige fine powder. Soluble in water (gels), practically insoluble in ethanol.
Properties and Uses: It is obtained from the endosperm of the seeds of Cyamopsis tetragonolobus L. Taub. (Fam. Leguminosae), by grinding the endosperm followed by partial hydrolysis.
The main components are hydrocolloid polysaccharides consisting of D-galactose and D-mannose (galactomannans).
Guar gum is a non-absorbable polysaccharide, long chain, anionic, high molecular weight, having the ability to form hydrocolloids when mixed with water, and interferes with the processes of intestinal absorption of carbohydrates and fats .
It is an example of soluble fiber.
Gels are normally form low consistency. They are stable at pH 4.0 to 10.5. By having the great ability to absorb water and form a gel.
It is also used as suspending agent in oral and topical formulations, as a thickener to stabilize emulsions, binder and disintegrant as tablets.
As emulsion stabilizer: 1%.
As thickener emulsions: up to 2.5%
Incompatibility: Acetone, alcohol, tannins, acids and strong bases, borates. Gels may liquefy at pH <7.
Storage: in closed containers. PROTECT FROM LIGHT AND MOISTURE.