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定義
本品は、マンダリンオレンジ Citrus reticulata の葉から得られる精油である。[Citrus nobilis]
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化粧品の成分用途
皮膚コンディショニング剤、香料
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化学的特性
Petitgrain oil Paraguay is obtained from an acclimatized variety of the bitter
orange tree, C. aurantium L., which is grown in Paraguay. It is pale yellow liquid
with a characteristic, strong, pleasant odor, reminiscent of linalool and linalyl acetate.
d2020 0.882–0.893; n20D 1.455–1.463; α20D ?5 ° to ?1 °; solubility: 1 vol in 4 vol of
70% ethanol at 20 ℃; acid number:max. 1; ester number: 122–190, corresponding
to an ester content of 39–67% (calculated as linalyl acetate). The main constituents
are linalool (15–30%) and linalyl acetate (40–60%). A number of trace constituents contribute essentially to the odor.
Annual production in Paraguay is nearly 200 t.
Petitgrain oil bigarade is derived from the bitter orange tree C. aurantium L.,
grown in France, Italy, Spain, and North Africa, see also bitter orange oil, p. 199.
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物理的性質
Petitgrain Bigarade Oil: An Italian product, petitgrain bigarade oil is a pale-yellow to amber
liquid. Paraguay Petitgrain Oil: A South American product, Paraguay petitgrain oil is a yellow to brownish-yellow liquid. It is
soluble in most fixed oils and mineral oil (with opalescence and turbidity). It is relatively insoluble in glycerin.
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使用
petitgrain oil is widely used in pharmacy and perfumery for its therapeutic and tonic effect. Its fragrance is fresh, invigorating, and slightly floral with a bitter note. Like neroli, real petitgrain (or petitgrain biguarade) is obtained by distilling the leaves of the bitter orange tree. Petitgrain bergamot, petitgrain lemon, and petitgrain mandarin are also produced. It may be irritating to the skin.
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精油の成分
The main constituents of the essential oils include l-linalyl acetate, linalool, terpineol, and geranyl and
nerol esters. The petitgrain oil (reference sample France) contains terpenic alcohols (linalool 12 to 24%, terpineol 2 to 5%, nerol <1%
and geraniol 1 to 2%), terpenic ester (linalyl acetate 51 to 71%, neryl acetate 1 to 2%, geranyl acetate 1 to 3%) and terpenic hydrocarbons
(myrcene <1.5%, β-ocimene 0.2 to 2.2%, β-pinene 0.3 to 2.7% and limonene 0.4 to 8%) (CoE, 2000).
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安全性プロファイル
Low toxicity by ingestion and skincontact. A combustible liquid. When heated todecomposition it emits acrid smoke and irritating vapors.
