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Merck

G1128

Tragacanth

Synonym(s):

Gum tragacanth

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About This Item

CAS Number:
UNSPSC Code:
12352201
EC Number:
232-552-5
NACRES:
NA.25
MDL number:
Technical Service
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biological source

plant (Astragalus gummifer)

Quality Level

form

powder

color

beige

solubility

H2O: 20 mg/mL

storage temp.

room temp

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.

Other Notes

A complex mixture of polysaccharides including tragacanthin and bassorin.
To gain a comprehensive understanding of our extensive range of Polysaccharides for your research, we encourage you to visit our Carbohydrates Category page.


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Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Setareh Ghorban Shiroodi et al.
The Journal of dairy research, 79(1), 93-101 (2012-11-23)
In this study, the physicochemical properties of a low-fat dried yogurt paste (kashk) were determined, and the effects of different concentrations (0, 0·1, 0·3 and 0·5% w/w) of gum tragacanth exudates from Astragalus gossypinus on the stability and texture of
Cesar A Tischer et al.
Carbohydrate research, 337(18), 1647-1655 (2002-11-09)
The polysaccharide obtained by ethanol precipitation from an aqueous solution of gum tragacanth contained arabinogalactan and tragacanthic acid, as well as starch ( approximately 0.6%). GC-MS, NMR, and ESI-MS analyses showed the structure of the arabinogalactan to be even more
R Koppang et al.
The Journal of prosthetic dentistry, 73(5), 486-491 (1995-05-01)
An in vitro test is described that simulates the in vivo fate of a denture adhesive, namely destruction, dilution, and dissolution of the adhesive, by repeated measurement of tensile bond strength for the adhesive in isotonic saline over time. The