Botanical Profile
Basil is an aromatic Lamiaceae herb with a long culinary and cultural history. Its essential-oil chemotypes range from linalool- and estragole-rich to eugenol- and citral-influenced forms.
Ocimum basilicum L. is an annual to short-lived perennial aromatic herb with opposite leaves, square stems and white to pinkish bilabiate flowers. The species probably originates from tropical and subtropical regions of South Asia and was spread via trade routes to the Mediterranean, Middle East and Europe. Numerous cultivars and cultivated forms exist within Ocimum basilicum, with differing leaf colours, leaf shapes and aromas, including Genovese basil, Thai basil, lemon basil and purple basil.
Phytochemistry
Basil shows pronounced chemical variability. Essential oils may contain linalool, methyl chavicol or estragole, eugenol, methyl cinnamate, citral, 1,8-cineole and other terpenes. Depending on chemotype, floral, anise-like, citrus, clove-like or spicy aroma profiles develop. Basil also contains rosmarinic acid, caffeic-acid derivatives, flavonoids, anthocyanins in red-leaved cultivars, triterpenes and tannins. The genus Ocimum is an important field of research for chemotaxonomy and aroma-compound biosynthesis.
Traditional Uses
Basil has a cultural history spanning several continents. In South Asia, the Mediterranean region and the Middle East, the plant was valued as a garden, culinary and culturally significant plant. In Europe, basil appears in herbals as an aromatic garden herb, with culinary use often taking centre stage. Mediterranean cuisine in particular made basil one of the world's most important culinary herbs.
Current Research
Current research investigates chemotypes, linalool-, estragole-, eugenol- and citral-rich lines, genetic foundations of aroma formation, rosmarinic acid, flavonoids, anthocyanins and agronomic factors. Studies on light, nutrients, harvest timing and controlled production systems are particularly relevant because of basil's global importance as a cultivated plant.
Sources
- Hager's Handbook of Pharmaceutical Practice – Ocimum basilicum.
- Simon J.E. et al., literature on the genus Ocimum.
- PubMed literature on linalool-, estragole-, eugenol- and citral chemotypes.
Notice
The information presented in this botanical profile has been compiled to the best of our knowledge and belief from botanical, phytochemical, historical and scientific sources. It is intended solely for general professional information and initial orientation.
The content does not constitute an assurance of specific properties, effects, qualities or possible uses of products or extracts. In particular, it does not constitute a guarantee, a statement of suitability, or a statement regarding marketability, permissibility or usability in specific applications or markets.
Assessment of the suitability of a raw material or extract for a particular intended use, as well as compliance with all applicable legal and regulatory requirements, is the sole responsibility of the respective user.