Linalool orange

Nerol, geraniol and linalool Orange flower Sweet Fiano Genovese et al. (2007)... 

Of the 10 constituents which represent nearly half the oil of neroH, only linalool (10) can be said to contribute direcdy to the characteristic aroma of orange flower oil. In 1977, IFF chemists performed an in-depth analysis of this oil and identified three simple terpenic compounds, each present at less than 0.01%, a-terpenyl methyl ether [1457-68-0] (31), geranyl methyl ether [2565-82-4] (32), andhnalyl methyl ether [60763-44-2] (33) (11). The latter two compounds possess green floral-citms aromas and have been known to perfumery for some time a-terpenyl methyl ether (31) has been called the orange flower ether by IFF chemists owing to its characteristic odor. 

Orange Flower. Extraction of freshly picked flowers of the bitter orange tree, dims aurantium (subspecies amard) for the production of concrete is carried out mainly ia Morocco and Tunisia. Most of this material is processed further to give orange flower absolute, one of the most important absolutes used ia perfumes after rose and jasmine. It is highly valued ia perfumery, even when used at low levels, for its long-lasting, rich, warm, yet dehcate and fresh floralcy. The material is a complex mixture, to which methyl anthranilate [134-20-3] linalool (3), methyl jasmonate (15), and iadole (16) are important odor contributors. 

The enantiomeric differentiation of linalool is useful in the quality control of essential oils and oleoresins, as it was found to provide an important indication of the authenticity of many herbs and spices. The enantiomeric composition of linalool has been determined in many essential oils, including basil, bergamot, rosemary, lavandin, lavender, balm, coriander, mace. Pelargonium, rose, Cymbopogon, lemon, mandarin, Osman-thus, davana, jasmine, Lippia alba and orange, as well as in many fruit... 

Linalool is a major component in essential oils such as those of coriander, palmarosa, mace, petitigrain, Lippia alba and sweet orange flowers. (3i )(—)-Linalool is a main component in the oils of Ocimum species, including sweet basil, and in the oils of neroli, linaloe, bergamot, lavender and others. Linalool enantiomers in... 

Arey, J., S. B. Corchnoy, and R. Atkinson, Emission of Linalool from Valencia Orange Blossoms and Its Observation in Ambient Air, Atmos. Environ., 25A, 1377-1381 (1991b.)... 

Petitgrain oil Paraguay is obtained from an acclimatized variety of the bitter orange tree. Citrus aurantium L. subsp. aurantium, which is grown in Paraguay. It is pale yellow liquid with a characteristic, strong, pleasant odor, reminiscent of linalool and linalyl acetate. 

Monoterpenes, 10-carbon-containing terpenoids, are composed of two isoprene units, and found abundantly in plants, e.g. (+)-limonene from lemon oil, and (—)-linalool from rose oil. Many monoterpenes are the constituents of plant volatile oils or essential oils. These compounds are particularly important as flavouring agents in pharmaceutical, confectionery and perfume products. However, a number of monoterpenes show various types of bioactivity and are used in medicinal preparations. For example, camphor is used in liniments against rheumatic pain, menthol is used in ointments and liniments as a remedy against itching, bitter-orange peel is used as an aromatic bitter tonic and as a remedy for poor appetite and thymol and carvacrol are used in bactericidal preparations. 

Citrus reticulata Blanco C. reticulata Blanco, var. chachiensis Jiu Hong, Chen Pi (Orange) (external layer of pericarp) Citral, geraniol, linalool, methylanthranilate, stachydrine, putrescine, apyrocatechol, naringin, poncirin, hesperidin, neohespiridin, nobiletin.33 Expectorant, antitussive, treat indigestion, an antiemetic agent. 

This is obtained from the peel of the fruit of Citrus aurantium (var. dulcis) and is a golden-yellow liquid with an odour of oranges and a sweetish, aromatic taste. It contains limonene (about 90%), linalool, terpineol, nonyl alcohol, decyl aldehyde and esterified caprylic acid. If adulterated with bitter orange cal (q.v.), the latter is detectable by determinations of the sp. gr. at 15°, rotatory power and residue on evaporation (see Oil of Lemon) and by fractional distillation. 

A high-pressure circulation-type apparatus was designed and constructed to investigate the vapor-liquid equilibria (VLE) of systems containing limonene, linalool and supercritical carbon dioxide. VLE data of binary and ternary systems of these compounds can be determined in the ranges of pressure and temperature of interest for the deterpenation of cold-pressed orange oil. The preliminary results obtained for the binaries CC -linalool and C02-limonene were compared to data already published with acceptable accuracy and well correlated by a modified Soave-Redlich-Kwong (SRK) equation of state. 

A common practice to study each citrus oil is to consider it as a binary synthetic mixture of its two more important components [4, 5, 6, 7]. For instance, the cold-pressed orange oil is usually treated as a mixture of limonene and linalool, representing the terpene and the oxygenated fractions, respectively. 

Limonene (3) a//3-Pinene (4, 5) Linalool (6) Menthol (7) Geraniol (8) Sweet orange (R) Pine wood ((+)-aa, (-)-ff) Ho (R), rosewood ( ) Japanese mint (-) Palmarosa Citronellol (9) Citronellal (10) 1,8-Cineole (1) Citral (11) Eugenol (2) Geranium (S) Eucalyptus (E citriodora, ), citronella (R) Eucalyptus (E globulus) Lemongrass, Litsea cubeba Glove... 

Sweet orange Citrus sinensis (S)-Linalool, octanal, decanal, a//3-sinensal (65, 66) 95,96... 

PROP Expressed from the peels of Dancy and related varieties of Citrus reticulata Blanco. The components include d-limonene, n-octylaldehyde, n-decylaldehyde, citral, linalool, citronella, cadinene, terpenes, aldehydes, alcohols, and esters (FCTXAV 16,637,78). Red-orange to brown-orange liquid orange-like odor. Sol in fixed oils, mineral oil sltly sol in propylene glycol insol in glycerin. 

An interesting variability is observed in plants from Rutaceae family. In bergamot (Citrus auranthium Bergamia), neroli and petitgrain (Citrus auranhtium ssp. amara), and lime oils (Citrus aurantifolia) the prevalence of (-)-linalool has been found. In orange (Citrus sinensis) and tangerine (Citrus reticulata) (+)-linalool is the dominant enantiomer, while in lemon (Citrus limon) and grapefruit (Citrus paradisi) the enantiomeric ratio of linalool is close to racemate [31,40]. 

Of all citrus oils, orange oil possesses the highest number of terpene hydrocarbons. It constitutes the best natural source of R(+)-limonene, a highly valued natural solvent. The typical orange flavour is characterised by the presence of aldehydes C8-C12, linalool, a- and p-sinsenal. 

Linalool lavender, orange, bergamot, coriander to identify botanical origin discrimination syn. a. botanical origin [230, 317, 351, 352]... 

Nevertheless, under the conditions of good manufacturing practice (GMP) the chirality evaluation of linalool has proved to be a reliable indicator in the authenticity control of lavender, bergamot, and orange oils. This fact will be of considerable importance in the quality assurance for the flavour and fragrance industry. 

When designing SFE, the most important factor to consider is the solubility of the desired compound in supercritical carbon dioxide. Because of the benign (noninteracting) molecular nature of carbon dioxide, solubilities are usually small. Nonetheless, with the recycle of CO2, multiple passes can be used to achieve the desired extraction. For illustration, solubilites of two compounds in orange skin, linalool, and limonene are shown in Figs. 4 and 5. The solubility is highly dependent on the pressure and temperature of the supercritical carbon dioxide. 

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