ビターオレンジ葉/小枝エキス 化学特性,用途語,生産方法
定義
本品は、ビターオレンジ Citrus aurantium amara の葉及び小枝のエキスである。
解説
ネロリ油，橙花(とうか)油ともいう．ダイダイや苦ダイダイなどの花を蒸留すると得られる芳香性の精油．無色で特有の苦みをもち，空気や日光にさらすと変質しやすい．主成分はリナロール，酢酸リナロール，ゲラニオール，ネロールおよびそれらのエステル類およびテルペン類など．香水やオーデコロンなどに用いられる．
化粧品の成分用途
皮膚コンディショニング剤、香料
説明
Neroli bigarade is a product obtained by processing flowers of the bitter orange tree. The blossoming flowers are the only part used. Neroli bigarade has a very powerful floral odor with a bitter flavor.
The essential oil is obtained in ca 0.1% yields by steam distillation of the flowers. The distillation waters, rich in dissolved essence, are used as is in perfumery, cosmetics, and sweets. Neroli bigarade essential oil, or simply neroli oil, has slightly different physical- chemical properties depending on its origin. Italian neroli oil, qualitatively equal to the French product of much larger production, is a pale-yellow to amber liquid, slightly fluorescent, with an intense, suave, flowery aroma.
The main constituents include pinene, camphene, dipentene, lina-lool, ι-linalyl acetate, α-terpineol, geraniol, nerol, nerolidol, methyl anthranilate, indole, farnesol, and phenylacetic acid esters.
The derivatives are concrete and absolute. Orange flower concrete is obtained in 0.24 to 0.28% yields by extracting freshly picked flowers with a solvent (usually petroleum ether). Treatment of the concrete with ethanol produces the orange flower absolute in approximately 50% yields. The absolute is a yellow-red liquid with an extremely suave odor typical of the flower.
化学的特性
Neroli oil and orange flower absolute are obtained from the blossoms of the
bitter orange tree, C. aurantium L., which is grown in the Mediterranean region. Neroli oil is produced by steam distillation and is a pale yellow to
amber-colored liquid, with a slight blue fluorescence and a characteristic sweet,
spicy, bitter odor of orange blossom.
d
2020 0.863–0.876/0.870–0.880; n
20D 1.464–1.474/1.465–1.472; α
20D +2 ° to +12 °/+2 ° to +11 °; solubility: 1 vol in not more than 3.5 vol of 85% ethanol at
20 ℃; acid number: max. 2.0; linalool content by GC 26–48%/26–55% (oils of Tunisia and Morocco/Egypt).
After separation of neroli oil, the aqueous layer of the steam distillate, known
as orange blossom water, is extracted with suitable solvents (e.g., petroleum
ether). Evaporation gives orange flower water absolute (absolue de 1’eau de
fleurs d’oranger), which is a dark brown-red liquid. It contains less terpene hydrocarbons and correspondingly more polar compounds than neroli oil.
Orange flower absolute is obtained from the blossoms by solvent extraction via the concrete. It is a dark brown liquid with a warm, spicy, bitter odor.
Themain volatile constituent of all three products is linalool. Their typical flavor is created by a number of nitrogen-containing trace constituents, such as indole
and derivatives of anthranilic acid.
物理的性質
Neroli bigarade essential oil has slightly different physical chemical properties depending on
its origin. Italian neroli oil, qualitatively equal to the French product of much larger production, is a pale-yellow to amber liquid,
slightly fluorescent
天然物の起源
Found in the blossoms of C. aurantium L. (Fam. Rutaceae) (Guenther, 1949).
使用
neroli oil is a fragrance. It is used in skin care preparations to stimulate cell regeneration. given its sedative and soothing properties, it is indicated for sensitive and delicate skin. However, neroli oil appears beneficial for all skin types. True neroli is extracted from bitter orange blossom. This is one of the most expensive oils and, therefore, is widely adulterated with the distillation of other citrus blossoms such as sweet orange, lemon, and mandarin.
製造方法
By distillation of the blossoms of C. aurantium (Poucher, 1974).
存在
ネロリ油フランス、イタリア、スペイン、モロッコなどに産するミカン科ダイダイの新鮮な花を水蒸気蒸留すると収油率0.1％で得られる無色の香油で、橙花(とうか)油ともいう。日光や空気に触れると変質する。この精油成分はl‐リナロール、酢酸リナリル、ネロリドール、リモネンなどである。
ダイダイは花からネロリ油、葉からはプチグレン油、果実皮からはオレンジ油、マーマレードが製造され利用価値が高い。果実は苦橙(くとう)bitter orangeといって生果として利用されないから、花から採油が行われるのである。水蒸気蒸留でネロリ油を製造する際、香成分中、水に溶けるものがあり、この蒸留水はオレンジフラワーオイル（橙花水）として利用されている。用途はフローラル調調合香料、オーデコロン、化粧水である。
精油の成分
The main constituents include pinene, camphene, dipentene, linalool, l-linalyl acetate, α-terpineol, geraniol,
nerol, nerolidol, methyl anthranilate, indole, farnesol and phenylacetic acid esters (Burdock, 1997). Neroli essential oil has been
reported to contain terpenic hydrocarbons (mainly limonene 9 to 18%, β-pinene 7 to 17%, α-pinene <2%, myrcenel), terpenic alcohols
and esters (linalool 28 to 44%, α-terpineol 2 to 5.5%, nerolidol 1 to 5%, farnesol 1 to 4%, linalyl acetate 3 to 15%, neryl acetate
<2.5%, geranyl acetate 1 to 5%) (CoE, 2000).
一般的な説明
Clear golden, fluorescent liquid with a very intense and pleasant odor.
空気と水の反応
Insoluble in water.
反応プロフィール
FEMA 2771 turns brown on exposure to light.
火災危険
FEMA 2771 is probably combustible.
ビターオレンジ葉/小枝エキス 上流と下流の製品情報
原材料
準備製品