Essential Oil - Exotic Basil
Essential Oil – Exotic Basil
Botanical Information
Exotic Basil (Ocimum basilicum) belongs to the Lamiaceae (Labiatae) family and is closely related to French basil. Although botanically classified as the same species, Exotic Basil is generally a larger plant with a stronger, harsher aroma and a distinctly different chemical composition. It is also commonly known as Sweet Basil, Comoran Basil, and Reunion Basil, depending on its origin and essential oil source.
Distribution and Traditional Uses
Exotic Basil essential oil is produced mainly in the Comoro Islands and is also processed in Madagascar. Several other basil species and chemotypes are cultivated worldwide for essential oil production. These include East Indian or shrubby basil (Ocimum gratissimum), grown in countries such as Morocco, Egypt, South Africa, Brazil, and Indonesia, which produces oils rich in either thymol or eugenol. Another related species, Hairy or Hoary Basil (Ocimum canum), native to East Africa and also found in India and South America, yields oils rich in methyl cinnamate or camphor.
Traditionally, Exotic Basil has been used in similar ways to French Basil, particularly in herbal medicine and culinary applications, although the French chemotype remains the preferred variety for therapeutic use.
Essential Oil and Characteristics
Exotic Basil essential oil is obtained through steam distillation of the leaves and flowering tops. The oil is typically yellow to pale green and possesses a sweet herbaceous aroma with a noticeable camphoraceous note. Compared with the delicate fragrance of French Basil, the scent of Exotic Basil is considered coarser and less refined.
Chemical Composition
The principal constituent of Exotic Basil essential oil is methyl chavicol (estragole), which comprises approximately 70–88% of the oil. Other important components include linalool, cineole, camphor, eugenol, limonene, and citronellol, all of which contribute to its characteristic aroma and properties.
Therapeutic Benefits
The therapeutic properties of Exotic Basil are generally similar to those of French Basil. However, because of its high concentration of methyl chavicol, this chemotype is not recommended for aromatherapy or therapeutic applications. As a result, French Basil essential oil is generally preferred when therapeutic benefits are desired.
Safety and Precautions
Exotic Basil essential oil should be used with great caution. Its high methyl chavicol content makes it moderately toxic and potentially irritating to the skin. There has also been concern regarding the possible carcinogenic effects of prolonged exposure to methyl chavicol. For these reasons, Exotic Basil essential oil is generally not recommended for therapeutic use and should be avoided during pregnancy.
Industrial Uses
Exotic Basil essential oil is widely used in the fragrance and flavour industries. It is incorporated into premium perfumes, soaps, and dental care products because of its distinctive herbaceous aroma. The oil is also extensively used as a flavouring agent in a variety of food products, particularly meat dishes, savoury foods, and processed seasonings.
