Chemical | |
Description | Gum Tragacanth is an exudate gum from species of Astragalus trees mainly grown in Iran and Turkey. Tragacanth finds applications as an effective emulsifying and thickening agent in the food and pharmaceutical industries. The gum is a slightly acidic salt consisting of two fractions namely the water soluble tragacanthin and the fraction bassorin which swells in water to form a gel. Water soluble tragacanthin is reported as a branched arabiogalactan which is soluble in 70% ethanol. The acidic bassorin has a chain of (1-4)-linked α-D-galacturonic acid units some of which are substituted at O-3 with β-D-xylopyranosyl units and some of these being terminated with galactose or fucose. |
Dextra于1989年在英国雷丁成立,旨在为科研界提供碳水化合物的合成和分析服务。从那时起,该公司因其用于医学研究,诊断和制药应用的稀有糖,寡糖和手性分子的供应而享誉全球。Dextra的活动已成功通过ISO9001:2008注册。