Листя туї

НатуральнийЗЕЛЕНІ НОТИ, ТРАВИ Й ФУЖЕРНІ АКОРДИдеревний · свіжий · зелений
Ноти серцяПіраміда
3/5Сила
—Стійкість
2Походження
Зразок
Листя туї як парфумерна сировина
Ноти серця
Thuja occidentalis L.
Визначення

Sharp, camphoraceous green — the smell of crushing arborvitae foliage between damp fingers. Not cedar heartwood at all: brighter, more terpenic, with an almost medicinal bite from thujone.

Herbacé
95
Vert
71
Frais
77
Aromatique
41
Boisé
59
Terreux
23
Cedar needles, Cedar foliage
Type
Складник
Olfactive family
Ароматичні
Source
foliage
Chemical class
complex natural (essential oil)
Інструменти
Піраміда
ВВерхні ноти
СНоти серця
ББазові ноти
3/5Сила
Середня
інтенсивність запаху
Країни-виробники
Канада Сполучені Штати

Запах

Green, sharp, and immediately camphoraceous — nothing like the dry warmth of cedarwood. The opening is terpenic and bright, close to juniper or cypress but with a particular medicinal edge from thujone. Drier than fir needle, less resinous than pine, more herbaceous than either. A cool brightness sits underneath, like crushed sage mixed with turpentine. On paper, the thujone ketone note persists longest.

Теруар і переробка

Докладно

Cedar leaf oil comes from Thuja occidentalis — the eastern white cedar or arborvitae — not from true cedars (Cedrus). The distinction matters. Where cedarwood smells dry, pencil-shaving warm, cedar leaf is green, coniferous, sharp. The volatile profile is dominated by alpha-thujone (38–65% depending on cultivar and provenance), fenchone (9–13%), sabinene (2–6%), and bornyl acetate. The overall impression: camphoraceous brightness threaded with an herbal-medicinal edge.

The oil is distilled from the foliage and young twigs of trees at least fifteen years old, primarily in Quebec. Small family operations account for most production; roughly 80% is exported to the United States. Yield runs 0.6–1.0% by steam distillation. The ketone content — thujone plus fenchone — typically exceeds 60% of total composition, which accounts for the sharp character and also the toxicity that limits dosage in fragrance formulas.

In composition, cedar leaf provides a green-coniferous accent in the top-to-heart transition. It is not a standalone note but a modifier: it lifts woody bases, sharpens lavender-fougere accords, and gives specificity to generic ‘forest’ constructions. Used sparingly — a few tenths of a percent — it adds documentary realism to aromatic-woody compositions. Higher concentrations risk a medicinal harshness. The oil may be redistilled to reduce thujone content, which changes the olfactory profile toward something softer and less particular.

—

Related: Alpha Pinene · Angelica · Angelica Root · Angelica Root Oil · Artemisia · Barrenwort · Beachheather · Behini Tree

Отримання й хімія

Спосіб отримання

Steam distillation of fresh foliage and young twigs of Thuja occidentalis (eastern white cedar). Trees must be at least 15 years old. Leafy branches are cut, dried briefly, then loaded into a distillation tank. Extraction proceeds under high-pressure steam; vapors are condensed in an indirect-contact heat exchanger, then separated in a Florentine vase. Yield: 0.6–1.0% by weight. The crude oil contains 60–70% total ketones (alpha-thujone + fenchone). Some commercial grades undergo redistillation to reduce thujone content for IFRA compliance, which modifies the olfactory character. Major production: Quebec, Canada, with approximately 80% exported to the United States.

Формула
Complex — key component: alpha-Thujone (C₁₀H₁₆O, up to 65%), Fenchone (C₁₀H₁₆O)
CAS
8007-20-3 (Thuja occidentalis leaf oil)
Ботанічна назва
Thuja occidentalis L.
Зовнішній вигляд
Pale yellow to amber liquid
Сила запаху
Середня
Синоніми
Cedar needles, Cedar foliage
Статус IFRA
Обмежено

Restricted — thujone content subject to IFRA Amendment 49 (Standard 102). Maximum thujone levels per product category apply. Used in small quantities due to neurotoxicity.

Фізичні властивості
Температура спалаху
~50°C
Відносна густина
0.910–0.930 @ 25°C
Показник заломлення
1.456–1.460 @ 20°C

У парфумерії

Top-to-heart modifier providing green-coniferous specificity. The high thujone and fenchone content gives cedar leaf a character distinct from any cedarwood material — sharper, greener, more volatile. Functions primarily as a lifting agent and naturalizer in aromatic and fougere compositions, where it bridges lavender and coumarin with woody hearts. At low dosages (0.1–0.5%), it adds textural realism to forest and outdo or accords without drawing attention to itself. At higher levels, the medicinal-camphoraceous quality dominates. Cedar leaf partners well with juniper berry, lavender, geranium, pine needle, and clary sage. In woody-aromatic masculine structures, it sharpens cedarwood or vetiver bases. IFRA restricts thujone-containing materials — cedar leaf oil must be dosed with attention to total thujone exposure across the formula.

Роль у формулі
01модифікатор
02фірмова нота
03компонент піднесення
04сполучний компонент
05натуралізатор
06формувач об’єму
Форми випуску
ефірна олія абсолют

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