G1128

Sigma-Aldrich

Tragacanth

Synonym(s):
Gum tragacanth
CAS Number:
EC Number:
MDL number:
NACRES:
NA.25

Quality Level

biological source

plant (Astragalus gummifer)

form

powder

solubility

H2O: 20 mg/mL

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General description

Tragacanth is a gum commonly found in the sap of various Middle Eastern legumes. It is commonly used as freezing-embedding medium for tissue preservation.

Application

When mixed with water, tragacanth yields a colloidal hydrosol. The bassorin fraction (which consists of approx. 60-70% of the compound) swells to form a gel. This swelling gives the gum tragacanth the ability to form thick, viscous dispersions and pastes. It is an effictive emulsion stabilizer.

Packaging

1 kg in poly bottle
100, 500 g in poly bottle

Other Notes

A complex mixture of polysaccharides including tragacanthin and bassorin.

storage_class_code

13 - Non Combustible Solids

WGK Germany

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

T M Wieland et al.
Journal of animal science, 71(7), 1863-1868 (1993-07-01)
Four trials were conducted using 86, 24-h-old pigs to evaluate the utilization of medium-chain triglycerides (MCT). Effects of emulsification and amount of MCT fed were examined. After a 4-h period during which feed was withheld, pigs were force-fed MCT (containing...
Masoud Hatami et al.
International journal of biological macromolecules, 50(4), 1109-1115 (2012-03-13)
The aim of this study was to investigate the role of process conditions and system composition on the acid-induced gelation of a mixture of milk protein and gum tragacanth. This was studied by determining the effects of co-solute (lactose) addition...
Mohammad Amin Mohammadifar et al.
International journal of biological macromolecules, 38(1), 31-39 (2006-02-14)
Solution properties of tragacanthin (the water-soluble part of gum tragacanth) were studied by gel permeation chromatography (GPC) combined with multi-angle light scattering and viscometry at 25 degrees C. Photon correlation spectroscopy was used to determine the hydrodynamic radius. Ultrasonic degradation...
J Rahimi et al.
Journal of dairy science, 90(9), 4058-4070 (2007-08-19)
The effect of different concentrations of gum tragacanth on the textural characteristics of low-fat Iranian White cheese was studied during ripening. A batch of full-fat and 5 batches of low-fat Iranian White cheeses with different gum tragacanth concentrations (without gum...
A Hagiwara et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 30(8), 673-679 (1992-08-01)
Tragacanth gum was administered at dietary levels of 0 (control), 1.25 and 5.0% to groups of 50 male and 50 female B6C3F1 mice for 96 wk after which all animals were maintained on a basal diet without tragacanth gum for...

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