Names | |
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IUPAC name (4R)-4-(β-D-Glucopyranosyloxy)-2,6,6-trimethylcyclohex-1-ene-1-carbaldehyde | |
Systematic IUPAC name (4R)-2,6,6-Trimethyl-4-{[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}cyclohex-1-ene-1-carbaldehyde | |
Identifiers | |
3D model (JSmol) | |
ChemSpider | |
PubChem CID | |
UNII | |
CompTox Dashboard (EPA) | |
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Properties | |
C16H26O7 | |
Molar mass | 330.377 g·mol−1 |
Density | 1.31 g/mL |
Melting point | 154 to 156 °C (309 to 313 °F; 427 to 429 K) |
Boiling point | 520.4 °C (968.7 °F; 793.5 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Picrocrocin is a monoterpene glycoside precursor of safranal. It is found in the spice saffron, which comes from the crocus flower. [1] Picrocrocin has a bitter taste, and is the chemical most responsible for the taste of saffron.
During the drying process, picrocrocin liberates the aglycone (HTCC, C10H16O2) due to the action of the enzyme glucosidase. The aglycone is then transformed to safranal by dehydration. Picrocrocin is a degradation product of the carotenoid zeaxanthin. [2]
Saffron is a spice derived from the flower of Crocus sativus, commonly known as the "saffron crocus". The vivid crimson stigma and styles, called threads, are collected and dried for use mainly as a seasoning and colouring agent in food. The saffron crocus was slowly propagated throughout much of Eurasia and was later brought to parts of North Africa, North America, and Oceania.
Crocus is a genus of seasonal flowering plants in the family Iridaceae comprising about 100 species of perennials growing from corms. They are low growing plants, whose flower stems remain underground, that bear relatively large white, yellow, orange or purple flowers and then become dormant after flowering. Many are cultivated for their flowers, appearing in autumn, winter, or spring. The flowers close at night and in overcast weather conditions. The crocus has been known throughout recorded history, mainly as the source of saffron. Saffron is obtained from the dried stigma of Crocus sativus, an autumn-blooming species. It is valued as a spice and dyestuff, and is one of the most expensive spices in the world. Iran is the center of saffron production. Crocuses are native to woodland, scrub, and meadows from sea level to alpine tundra from the Mediterranean, through North Africa, central and southern Europe, the islands of the Aegean, the Middle East and across Central Asia to Xinjiang in western China. Crocuses may be propagated from seed or from daughter cormels formed on the corm, that eventually produce mature plants. They arrived in Europe from Turkey in the 16th century and became valued as an ornamental flowering plant.
Colchicum autumnale, commonly known as autumn crocus, meadow saffron, naked boys or naked ladies, is a toxic autumn-blooming flowering plant that resembles the true crocuses, but is a member of the plant family Colchicaceae, unlike the true crocuses, which belong to the family Iridaceae. It is called "naked boys/ladies" because the flowers emerge from the ground long before the leaves appear. Despite the vernacular name of "meadow saffron", this plant is not the source of saffron, which is obtained from the saffron crocus, Crocus sativus – and that plant, too, is sometimes called "autumn crocus".
Sativa, sativus, and sativum are Latin botanical adjectives meaning cultivated. It is often associated botanically with plants that promote good health and used to designate certain seed-grown domestic crops.
Crocus sativus, commonly known as saffron crocus or autumn crocus, is a species of flowering plant in the iris family Iridaceae. A cormous autumn-flowering cultivated perennial, unknown in the wild, it is best known for the culinary use of its floral stigmas as the spice saffron. Human cultivation of saffron crocus and the trade and use of saffron have endured for more than 3,500 years and span different cultures, continents, and civilizations.
Safranal is an organic compound isolated from saffron, the spice consisting of the stigmas of crocus flowers. It is the constituent primarily responsible for the aroma of saffron.
Crocus cartwrightianus is a species of flowering plant in the family Iridaceae. It is native to mainland Greece, Euboea, Crete, Skyros and some islands of the Cyclades. It is a cormous perennial growing to 5 cm (2 in). The flowers, in shades of lilac or white with purple veins and prominent red stigmas, appear with the leaves in autumn and winter.
Human cultivation and use of saffron spans more than 3,500 years and extends across cultures, continents, and civilizations. Saffron, a spice derived from the dried stigmas of the saffron crocus, has through history remained among the world's most costly substances. With its bitter taste, hay-like fragrance, and slight metallic notes, the apocarotenoid-rich saffron has been used as a seasoning, fragrance, dye, and medicine.
Saffron is a shade of yellow or orange, the colour of the tip of the saffron crocus thread, from which the spice saffron is derived. The hue of the spice saffron is primarily due to the carotenoid chemical crocin.
Crocin is a carotenoid chemical compound that is found in the flowers of crocus and gardenia. Its oxygen content also chemically makes it a xanthene. Crocin is the chemical primarily responsible for the color of saffron.
Crocetin is a natural apocarotenoid dicarboxylic acid that is found in the crocus flower together with its glycoside, crocin, and Gardenia jasminoides fruits. It is also known as crocetic acid. It forms brick red crystals with a melting point of 285 °C.
Saffron is a key seasoning, fragrance, dye, and medicine in use for over three millennia. One of the world's most expensive spices by weight, saffron consists of stigmas plucked from the vegetatively propagated and sterile Crocus sativus, known popularly as the saffron crocus. The resulting dried stigmas, also known as "threads", are distinguished by their bitter taste, hay-like fragrance, and slight metallic notes. The saffron crocus is unknown in the wild; its most likely precursor, Crocus cartwrightianus, originated in Crete or Central Asia; The saffron crocus is native to Southwest Asia and was first cultivated in what is now Greece.
Ditaxis heterantha is a member of the plant family Euphorbiaceae and grows wild in Guanajuato, Mexico, where it is known as azafrán, azafrancillo, azafrán de bolita or saffron pellets and has several culinary uses, including as a substitute for saffron. Ditaxis heterantha is not related to true saffron nor to safflower, which also is used as a saffron substitute.
Divicine (2,6-diamino-4,5-dihydroxypyrimidine) is an oxidant and a base with alkaloidal properties found in fava beans and Lathyrus sativus. It is an aglycone of vicine. A common derivative is the diacetate form (2,6-diamino-1,6-dihydro-4,5-pyrimidinedione).
Cytotaxonomy is the classification of organisms using comparative studies of chromosomes during meosis.
An oxygen diffusion-enhancing compound is any substance that increases the availability of oxygen in body tissues by influencing the molecular structure of water in blood plasma and thereby promoting the movement (diffusion) of oxygen through plasma. Oxygen diffusion-enhancing compounds have shown promise in the treatment of conditions associated with hypoxia and ischemia. Such conditions include hemorrhagic shock, myocardial infarction, and stroke.
Crocetin glucosyltransferase is an enzyme with systematic name UDP-glucose:crocetin 8-O-D-glucosyltransferase. This enzyme catalyses the following chemical reaction
Saffron is one of the world's most expensive spices by weight due to its difficulty to harvest. Saffron consists of stigmas plucked from the vegetatively propagated and sterile Crocus sativus, known popularly as the saffron crocus. The resulting dried "threads" are distinguished by their bitter taste, hay-like fragrance, and slight metallic notes. The saffron crocus is unknown in the wild; its most likely precursor, Crocus cartwrightianus, originated in Crete or Central Asia; The saffron crocus is native to Southwest Asia, and is believed to have been first cultivated in Iran. Greece, Turkey, and India have also been suggested as possible sites of origin.
"Saffron, for example, was once less regarded than it is today because the crocus from which it is extracted was not particularly mysterious. It flourished in European locations extending from Asia Minor, where it originated, to Saffron Walden in England, where it was naturalised. Only subsequently, when its labour-intensive cultivation became largely centred in Kashmir, did it seem sufficiently exotic to qualify as one of the most precious of spices."
Crocus ochroleucus is species of flowering plant in the Iridaceae family. It is a cream-colored crocus native to Lebanon, Palestine and Syria.
β-Cyclocitral (beta-cyclocitral) is an apocarotenoid derived from the C7 oxidation of β-carotene. This apocarotenoid has revived interest due to its roles in plant development. β-cyclocitral has been found endogenously in a variety of organisms including plants, cyanobacteria, fungi and animals. β-Cyclocitral is a volatile compound that contributes to the aroma of various fruits, vegetables and ornamental plants. In plants, β-cyclocitral was found to be an important regulator in root development.