Mucilages are useful in medicine as vehicles for various insoluble and other drugs, and in the arts as thickeners (in calico-printing, dyeing, &c.).
They are odourless and tasteless, and some yield clear aqueous solutions - the real gums - while others swell up and will not percolate filter paper - the vegetable mucilages.
Very many seeds, roots, &c., when infused in boiling water, yield mucilages which, for the most part, consist of bassorin.
The British pharmacopoeia contains the mucilages of acacia and tragacanth.
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