sarnaneb kummiaraabikuga, kuid on eriti tugeva sidumisvõimega. Kasutatakse limainene ja emulsiooni tekitajana tekstiili- ja värvitööstuses ning farmaatsias.
many tropical plants produce the gum sap for this adhesive sizing ingredient. It comes in hard chip form, but will become gelatinous when mixed with water, a popular sizing agent
obtained from certain varieties of Astragalus
a ‘gum’ or mucilaginous substance obtained from several species ofAstragulus, by natural exudation or incision, in the form of whitish strings or flakes, only partially soluble in water. Used in medicine (chiefly as a vehicle for drugs) and in the industrial arts. Also a similar substance obtained from Sterculia Tragacantha of W. Africa.
leur solvatisation par l'eau rend facile l'utilisation des gommes suivantes:
Gum tragacanth is second in importance commercially; it is produced by several shrubs of the genus Astragalus, principally Astragalus gummifer, native to the arid regions of Iran, Asia Minor, and Greece. The exudate is produced spontaneously on the bark of the shrub, but the yield may be increased by making an incision and driving wooden wedges into it. One of the oldest drugs known, its use dates from pre-Christian times. Gum tragacanth is still used pharmaceutically as a demulcent (coating) and as a binding agent in pill manufacture. In processed foods it is used as an emulsifier and in sauces as a thickener.
