Абсолют нарциса
Narcissus absolute is a perfumery material obtained from the flowers of Narcissus poeticus. Its odour is described as a green, intoxicating, rich, mellow narcissus floral character with hay and honey undertones.
- Type
- Складник
- Olfactive family
- Квіткові
- Source
- flower
- Chemical class
- absolute (natural mixture)
Запах
Докладно
Отримання й хімія
Спосіб отримання
Narcissus absolute is prepared from narcissus concrete, which is extracted from the flowers of Narcissus poeticus with petroleum ether. In general, plant material is extracted with a hydrocarbon solvent such as hexane to yield a concrete, and the concrete is then extracted with ethanol. The ethanol extract is cooled to solidify waxes and cold filtered to yield a liquid extract, and when the ethanol evaporates an oil, the absolute, is left behind. In reported studies the concrete (absolute plus waxes) from fresh flowers yielded 0.2-0.3% and 0.41-0.45% with hexane, and 0.2% with petroleum ether. The share of absolute in the concretes varied from 27 to 37%. Extraction of freeze-dried flowers with supercritical CO2 gave yields from 1.63% at 12 MPa to 3.12% at 48 MPa with 5% ethanol as co-solvent. These CO2 extracts contained all the main constituents identified in hexane extracts, although the yields of those constituents were significantly lower. The CO2 extracts contained a large fraction of waxes, which are not desirable in the production of higher quality fragrance ingredients.
- CAS
- 68917-12-4
- Ботанічна назва
- Narcissus poeticus
- Зовнішній вигляд
- Dark green brown oily liquid (est)
- Стійкість
- 400 hour(s) at 100.00 %
- Синоніми
- Narcissus flower absolute, Narcissus spp. absolute
No IFRA Standard for the material itself (51st Amendment)
- Температура спалаху
- 167.00 °F. TCC ( 75.00 °C. )
- Відносна густина
- 0.92400 to 0.99800 @ 25.00 °C.
У парфумерії
Narcissus oil is used as a principal ingredient in 11% of modern quality perfumes, as a floral concrete or absolute. The oil's fragrance resembles a combination of jasmine and hyacinth. A recommended usage level for narcissus flower absolute is up to 2.0% in the fragrance concentrate. It is not for flavor use.