First, plant material is extracted with a hydrocarbon solvent, such as hexane, to yield concrete. The concrete is then extracted with ethanol. The ethanol extract is cooled (e.g., to −15 °C) to solidify waxes, and cold filtered to yield a liquid extract. When the ethanol evaporates, an oil—the absolute—is left behind.[1]
Traditionally, the absolute was obtained by enfleurage, where the resulting pommade was extracted with ethanol to yield the absolute.
^K. Hüsnü Can Başer; et al. (2013), "Essential Oils", in Arza Seidel; et al. (eds.), Kirk-Othmer Chemical Technology of Cosmetics, ISBN978-1-118-40692-2
^Nedeltcheva-Antonova D, Medarska Y, Stoyanova A, Nenov N, Slavov A, Antonov L (2021). "Chemical profile and sensory evaluation of Bulgarian rose (Rosa damascena Mill.) aroma products, isolated by different techniques". Journal of Essential Oil Research. 33 (2): 171–181. doi:10.1080/10412905.2020.1839583. S2CID 230534578.
^Nedeltcheva-Antonova D, Ivanova D, Antonov L, Abe I (2016). "Insight into the aroma profile of Bulgarian tobacco absolute oil". Industrial Crops and Products. 94: 226–232. doi:10.1016/j.indcrop.2016.08.047.
absolute, perfumery, used, perfumery, aromatherapy, absolutes, similar, essential, oils, they, concentrated, highly, aromatic, oily, mixtures, extracted, from, plants, whereas, essential, oils, produced, distillation, boiling, pressing, absolutes, produced, th. Used in perfumery and aromatherapy absolutes are similar to essential oils They are concentrated highly aromatic oily mixtures extracted from plants Whereas essential oils are produced by distillation boiling or pressing absolutes are produced through solvent extraction or more traditionally through enfleurage Jasmine Jasminum officinale absolute Contents 1 Production 2 Character and use 3 See also 4 ReferencesProduction editFirst plant material is extracted with a hydrocarbon solvent such as hexane to yield concrete The concrete is then extracted with ethanol The ethanol extract is cooled e g to 15 C to solidify waxes and cold filtered to yield a liquid extract When the ethanol evaporates an oil the absolute is left behind 1 Traditionally the absolute was obtained by enfleurage where the resulting pommade was extracted with ethanol to yield the absolute Character and use editSome raw materials are either too delicate or too inert to be steam distilled and can only yield their aroma through solvent extraction Examples of these are jasmine and beeswax Absolutes in demand include rose jasmine tuberose jonquil ylang ylang mimosa boronia lavender lavandin geranium clary sage violet oakmoss tonka bean Rose oil 2 jasmine absolute tuberose absolute tobacco absolute 3 orris root oil ambrette seeds oil angelica root oil and orange flower oil are valuable and expensive fragrance and flavor ingredients 4 Residual solvents may remain in the absolutes Therefore some absolutes are considered undesirable for aromatherapy citation needed See also editBalsam Concrete Enfleurage Extract Oleogumresin Oleoresin Pommade Resinoid TinctureReferences edit K Husnu Can Baser et al 2013 Essential Oils in Arza Seidel et al eds Kirk Othmer Chemical Technology of Cosmetics ISBN 978 1 118 40692 2 Nedeltcheva Antonova D Medarska Y Stoyanova A Nenov N Slavov A Antonov L 2021 Chemical profile and sensory evaluation of Bulgarian rose Rosa damascena Mill aroma products isolated by different techniques Journal of Essential Oil Research 33 2 171 181 doi 10 1080 10412905 2020 1839583 S2CID 230534578 Nedeltcheva Antonova D Ivanova D Antonov L Abe I 2016 Insight into the aroma profile of Bulgarian tobacco absolute oil Industrial Crops and Products 94 226 232 doi 10 1016 j indcrop 2016 08 047 Karl Georg Fahlbusch et al 2007 Flavors and Fragrances Ullmann s Encyclopedia of Industrial Chemistry 7th ed Wiley p 83 Retrieved from https en wikipedia org w index php title Absolute perfumery amp oldid 1214327345, wikipedia, wiki, book, books, library,
