Sumbul Root Resinoid

#### Sumbul Root Resinoid. Various extraction methods and solvents have been applied to produce tinctures, concrètes, resinoids, "oleo-resins", etc. from **Sumbul Root **because of technical difficulties in the distillation of the root with steam. Alcohol extraction directly on the comminuted root yields tinctures which are applicable in perfumery as good fixatives of comparatively little odor value. The root material is imported from the country of origin of the plant (see **Sumbul**** ****Root Oil**), and according to the author's knowledge, no extraction is carried out in the countries where the plant is grown. Benzene extraction will yield a so-called resinoid (a concrète extract) of sumbul root. This product is a dark brown, semi-solid, non-pourable mass of a pleasantly warm-woody, slightly sweet-balsamic odor. Hydrocarbon solvent extraction usually gives a much lower yield than alcohol extraction, but the odorous components and the resins are carried over into solution by both types of solvents. The alcoholic products are generally darker and more solid of texture. They may be preferable in colognes or weak alcoholic lotions where the oil-soluble, hydrocarbon-extracted products would not be clearly soluble. Due to the scarcity of true **Ferula**** ****Sumbul**** **roots or closely related species of **Ferula**, the **Sumbul**** ****Root Resinoid **remains a very rare perfume material which is not commercially available or regularly produced by the supply houses. The root is still imported by a few French, English and American perfume houses for use in "private" perfume compositions. The tinctures and resinoids find application as fixatives in the same types of perfume as those mentioned under **Sumbul Root Oil**.