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One ton of iris root produces two kilos of essential oil, also referred to as orris root butter or butter of iris, and it is the most expensive substance used in the fragrance industry. [7] Its fragrance has been described as tenaciously flowery, heavy and woody (paraphrasing Pavia , Dutch translation, page 40).
Irones are a group of methylionone odorants used in perfumery, derived from iris oil, [1] e.g. orris root. The most commercially important of these are: (-)-cis-γ-irone, and (-)-cis-α-irone; Irones form through slow oxidation of triterpenoids in dried rhizomes of the iris species, Iris pallida. Irones typically have a sweet floral, iris ...
It is also grown to produce orris-root, a scented substance used in perfumes, soaps, tooth cleanser, and clothes washing powder. Medicinally it was used as an expectorant and decongestant. It is made from the rhizomes of Iris florentina, Iris germanica and Iris pallida. The flower is commonly attributed with the fleur-de-lis.
The rhizomes (roots) must be stored in a cool, dry location for three years to develop the scent. [1] The fresh rhizomes are almost odorless. The distilled oil solidifies in the receiver as a wax-like and cream-colored mass known as orris concrete. It is solid because of the high content of myristic acid (85%), a white stearin-like substance. [1]
Perfume (UK: / ˈ p ɜː f j uː m /, US: / p ər ˈ f j uː m / ⓘ) is a mixture of fragrant essential oils or aroma compounds (fragrances), fixatives and solvents, usually in liquid form, used to give the human body, animals, food, objects, and living-spaces an agreeable scent. [1]
The root system is deep on peach trees and the roots of peach trees continue to grow during the winter season. [5] [9] Twigs on peach trees have a smooth, hairless surface, the bark is usually red, but may be green on the sides not exposed to the sun. [10] As they become older branchlets weather to gray in color. [11]
Iris is a flowering plant genus of 310 accepted species [1] with showy flowers.As well as being the scientific name, iris is also widely used as a common name for all Iris species, as well as some belonging to other closely related genera.
An aroma compound, also known as an odorant, aroma, fragrance or flavoring, is a chemical compound that has a smell or odor. For an individual chemical or class of chemical compounds to impart a smell or fragrance, it must be sufficiently volatile for transmission via the air to the olfactory system in the upper part of the nose.