Botanical Profile
Note: The current botanical assignment is Salvia rosmarinus; Rosmarinus officinalis remains in common use as a historical synonym.
Raw-material differentiation: Peppermint leaf and peppermint oil are distinct pharmacognostic raw materials, each with its own monograph context.
Peppermint is a globally known medicinal, culinary and aromatic plant. Botanically, it is a hybrid of water mint and spearmint.
Mentha × piperita L. is a perennial with square stems, opposite lanceolate leaves and violet to pink flower spikes. Because of its hybrid origin, it is propagated predominantly vegetatively. The plant prefers nutrient-rich, sufficiently moist soils and is cultivated worldwide. Pharmacognostically, Menthae piperitae folium and Menthae piperitae aetheroleum are important.
Phytochemistry
Peppermint contains essential oil with menthol, menthone, isomenthone, menthyl acetate, menthofuran and 1,8-cineole. Menthol shapes the characteristic cooling aroma. The drug also contains flavonoids, eriocitrin and luteolin derivatives, rosmarinic acid, triterpenes and other polyphenolic compounds. Pharmacopoeias define content ranges for important marker constituents.
Traditional Uses
Mints have been known since antiquity as culinary and useful plants. Peppermint itself gained particular importance in Europe from the early modern period onward. EMA/HMPC, WHO, ESCOP and the European Pharmacopoeia treat peppermint leaves and peppermint oil as distinct herbal drugs. The plant is also highly important in the food industry, cosmetics and aromatic-plant culture.
Current Research
Research on peppermint investigates menthol biosynthesis, glandular hairs, oil quality, cultivars, cultivation, distillation, rosmarinic acid, flavonoids and agronomic optimisation. Mentha × piperita is a model plant for terpene biosynthesis in aromatic plants.
Sources
- EMA/HMPC: European Union herbal monograph on Mentha × piperita L., folium.
- EMA/HMPC: European Union herbal monograph on Mentha × piperita L., aetheroleum.
- WHO Monographs on Selected Medicinal Plants – Peppermint leaf and oil.
- ESCOP Monographs – Mentha × piperita.
- European Pharmacopoeia: Menthae piperitae folium / aetheroleum.
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.