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Basil (linalool CT)

Húng quế

Ocimum basilicum

European basil, French basil, Sweet basil (culinary)

Lamiaceae · Lá · Leaves · Steam-distilled

Botanical illustration of Ocimum basilicum, whose leaves yield Basil (linalool CT) essential oil
Basil (linalool CT) essential oil, extracted from the leaves of Ocimum basilicum. Botanical illustration, Lê Mai Library.

Safety

Skin sensitization · Low risk

Low risk of skin sensitization. Oxidation products of linalool may sensitize, but eugenol and 1,8-cineole in this oil are antioxidants.

No specific contraindications.

Maximum dermal use level 3.3 percent, based on 15.2 percent eugenol and a limit of 0.5 percent for eugenol.

Although it contains estragole, this oil shows antimutagenic activity and induces glutathione. No specific limit for carcinogen risk.


Usage guidelines

Maximum dermal level
3.3 percent
Basis
Eugenol 15.2 percent
Storage
Dark, sealed, refrigerated; add BHT or α-tocopherol

Chemistry

Volatile constituents
Linalool53.7 – 58.3 %
Eugenol9.4 – 15.2 %
1,8-Cineole6.0 – 6.7 %
(E)-α-Bergamotene2.0 – 3.8 %
Germacrene D2.0 – 3.0 %
T-Cadinol2.6 – 3.0 %
Estragole0.2 – 2.0 %
α-Bulnesene1.3 – 1.8 %
β-Elemene0.9 – 1.5 %
δ-Cadinene0.9 – 1.4 %
(E)-β-Ocimene1.0 – 1.3 %
Bornyl acetate0.8 – 1.2 %
Methyleugenoltr, 0.1 %

Botanical source

The linalool chemotype of Ocimum basilicum is produced primarily in Europe, North America and parts of North Africa. This is the basil most familiar in European cuisine, named 'sweet basil' in cookbooks.

The oil is steam-distilled from the leaves. May be adulterated by addition of synthetic linalool.

Family Lamiaceae. Same species as the estragole chemotype, but with markedly different chemistry.


Quality

May be adulterated by addition of synthetic linalool. Request a GC-MS certificate of analysis from the supplier.


Notes

An absolute (solvent-extracted) form is also produced, containing 34.4 percent linalool, 33.7 percent eugenol, and 9.7 percent linoleic plus linolenic acids.