Petitgrain Oil

Химические свойства

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; n²⁰_D 1.455–1.463; α²⁰_D ?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.

Физические свойства

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.

Использование

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.

Cостав эфирных масел

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).

Профиль безопасности

Low toxicity by ingestion and skincontact. A combustible liquid. When heated todecomposition it emits acrid smoke and irritating vapors.