Tragacanthin

This uronan (Stauffer, 1980 Whistler, 1993) contains a major neutral, insoluble albeit swellable component called bassorin and a minor water-dispersible, acidic component called tragacanthin. It is one of the more acid-and heat-stable, surfactant polysaccharides, and it has wide application in a miscellany of industries. The primary structures appear to be arabinogalac-tans and arabinogalacturonan methyl esters incorporating lesser quantities of xylose, rhamnose, and fucose. 

Fractionation of the major and minor components of gum tragacanth is achieved by a variety of techniques, e.g., filtration, centrifugation, fractional precipitation, etc. In this last technique, tragacanthin disperses in 3 1 ethanolrwater, while bassorin simultaneously precipitates as a gel. Acid hydrolysis of tragacanthin yields tragacanthic acid (Belitz and Grosch, 1987). 

Tragacanthin A complex mixture of polysaccharides containing some galacturonic acid residues The soluble component of the natural (plant origin) tragacanth gum Binder (in tablets) and demulcent... 

The gum consists of a mixture of water-insoluble and water-soluble polysaccharides. Bassorin, which constitutes 60-70% of the gum, is the main water-insoluble portion, while the remainder of the gum consists of the water-soluble material tragacanthin. On hydrolysis, tragacanthin yields L-arabinose, L-fucose, D-xylose, D-galactose, and D-galacturonic acid. Tragacanth gum also contains small amounts of cellulose, starch, protein, and ash. 

Tetrulose, h-glycero-, phenylosazone, 148 Thioaldonic acids, phenylhydrazides, 165 Thiogalaotonic acid, d-, phenylhydra-zide, 118-120, 122 Threaric acid, dl-, 178 Threonic acid, dl-, 179 —, 4-chloro-4-deoxy-DL-, 179 —, (-)-4-deoxy-, 180 —, 4-deoxy-D-, 171, 181 —, 4-deoxy-DL-, 180 —, 4-deoxy-L-, 171 Tragacanthin, 272, 279 Transformations, of carbohydrates, 65 Trehalose, 323... 

Other natural PS should be considered for the potential treatment of significant human infections caused by bunyaviruses. The mouse model of Punta Toro virus, a Phlebovirus member of the Bunyaviridae family, is a model for studying the treatment of Rift Valley fever infection. Tragacanthin PS from Astragalus brachycentrus and Astragalus echidnaeformis plants caused reduction in mortality, liver infection scores, liver and spleen virus titers, and serum transaminases in treated mice [131],... 

Tragacanth is somewhat unusual in its solubility characteristics. It is one of the hydrophilic colloids and with water it forms a thick viscous liquid. Actually, tragacanth is not a completely soluble gum. It consists of two parts or fractions, one of which, called tragacanthin or tragacanthic acid, makes up about 30 to 40% of the whole. This part dissolves in water to give a colloidal hydrosol. The other... 

Masuelli M. A., Takara A., Acosta A. 2013. Hydrodynamic properties of tragacanthin. Study of temperature influence./. Argent. Chem. Soc., 100,25-34. 

Gum tragacanth (Tragacanthin, tragacantic acid) Poly(methylene)... 

Complex mixt. of polysaccharides contains two primary constituents, water-sol. Tragacanthin and water-insol. Bassorin. Dried exudate from Astrala-gus gummifer and other Astralagus speciea Stabiliser, thickener and emulsifier in food manuf. 

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