Botanical Profile
Crocus sativus is a sterile, vegetatively propagated crocus species and the source of saffron, the dried red stigma branches of the flower. Saffron is a high-value spice, colouring and flavouring raw material.
Crocus sativus L. is a perennial corm plant of the Iridaceae. It forms narrow, grass-like leaves and violet flowers, from which the three deep-red thread-like stigma branches are harvested by hand. These dried stigmas constitute the raw material saffron. The species is sterile and is propagated vegetatively by corms. Cultivation is labour-intensive because only a small part of the flower is used. Botanically, saffron crocus must be distinguished from poisonous autumn crocus and other crocus species.
Phytochemistry
Saffron contains characteristic apocarotenoids, including crocins as water-soluble colourants, crocetin as the aglycone, picrocrocin as a bitter-tasting constituent and safranal as an important aroma compound. Some of these components arise through enzymatic and drying-related transformations from carotenoid precursors. Flavonoids, sugars, minerals and other volatile aroma components are also present. Quality and composition depend on origin, harvest, drying, storage and authenticity.
Traditional Uses
Saffron has been known since antiquity as a spice, colourant, fragrance and luxury raw material. It was used in Mediterranean, Persian, Indian, Arab and European cultures for foods, beverages, textiles, cosmetics, perfumery and traditional preparations. Because of the labour-intensive manual harvest, saffron has always been a valuable traded raw material and has frequently been subject to adulteration. Historical information demonstrates its cultural significance but must be distinguished from modern health-related assessments.
Current Research
Research investigates apocarotenoids, crocins, crocetin, picrocrocin, safranal, quality analysis, authenticity testing and experimental pharmacological models. Human studies address various extracts and standardised preparations in different research questions. Analytical methods for detecting adulteration with foreign plants, coloured fibres or inferior components are particularly relevant. Data on isolated crocins or highly concentrated extracts are not equivalent to normal culinary use as a spice.
Sources
- Plants of the World Online: Crocus sativus L.; Royal Botanic Gardens, Kew.
- ISO 3632: Saffron — Specification.
- Review literature on Crocus sativus and saffron constituents.
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.