Gum tragacanth: Gum tragacanth, also called tragacanth or dragon's gum, is an exudate obtained from the dried mucilaginous sap of about twenty species of plants of the genus Astragalus (formerly Astracantha), native to the south-east of Italy. Europe and Southwest Asia. It is produced mainly in Iran but also, on a smaller scale, in Turkey and Syria.
Chemical composition: this gum is a complex mixture of several polysaccharides. The two factions...
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