Trade and use of saffron
Encyclopedia
Saffron
Saffron
Saffron is a spice derived from the flower of Crocus sativus, commonly known as the saffron crocus. Crocus is a genus in the family Iridaceae. Each saffron crocus grows to and bears up to four flowers, each with three vivid crimson stigmas, which are each the distal end of a carpel...

 has been a key seasoning, fragrance, dye, and medicine for over three millennia. One of the world's most expensive spice by weight, 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
Crocus cartwrightianus
Crocus cartwrightianus is an eastern Mediterranean autumn-flowering species of crocus, and is of the family Iridaceae . C. cartwrightianus is the presumed wild precursor of the domesticated and now widely cultivated triploid Crocus sativus — the saffron crocus flower , .This species is...

, originated in Crete or Central Asia; The saffron crocus is native to Southwest Asia and was first cultivated in what is now Greece.

From antiquity to modern times the history of saffron
History of saffron
Human cultivation and use of saffron spans more than 3,500 years and spans 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...

 was fraught with applications in food, drink, and traditional herbal medicine: from Africa and Asia to Europe and the Americas the brilliant red threads were—and are—prized in baking, curries, and liquor. It coloured textiles and other items and often helped confer the social standing of political elites and religious adepts. Ancient peoples used saffron to treat stomach upsets, bubonic plague, and smallpox; modern research studies have indicated possible health benefits, which range from cancer-inhibiting and allergy-moderating properties to effects that combat depression and promote satiety.

Saffron crocus cultivation has long centred on a broad belt of Eurasia bounded by the Mediterranean Sea in the southwest to Kashmir and China in the northeast. The major producers of antiquity—Iran, Spain, Kashmir, and Greece—continue to dominate the world trade. The cultivation of saffron in the Americas was begun by members of the Schwenkfelder Church
Schwenkfelder Church
The Schwenkfelder Church is a small American Christian body rooted in the 16th century Protestant Reformation teachings of Caspar Schwenkfeld von Ossig .-History:...

 in Pennsylvania. In recent decades cultivation has spread to New Zealand, Tasmania, and California. Iran has accounted for around 90–93% of recent annual world production and thereby dominates the export market on a by-quantity basis.

Modern trade

Almost all saffron grows in a belt bounded by the balmy Mediterranean in the west and mountainous Kashmir in the east. All other continents except Antarctica produce smaller amounts. In 1991, Some 300 t (300,000 kg) of whole threads and powder are gleaned yearly, of which 50 t (50,000 kg) is top-grade "coupe" saffron. Iran is by far the world's most important producer: in 2005 it grossed some 230 tonnes (230,000 kg) of dry threads, or 93.7% of the year's global total mass; much of the Iranian crop was bound for export. In the same year, second-ranked Greece produced 5.7 t (5,700 kg). Morocco and the disputed region of Kashmir, tied as the next-highest producers, each produced 2.3 t (2,300 kg).

Thus, in decreasing order, Iran, Greece, Morocco, the Kashmir region, Azerbaijan, Morocco, and Italy dominate the world harvest. The erstwhile and northeasterly Khorasan Province, which in 2004 was divided in three, grows 95% of Iranian saffron: the hinterlands of Birjand
Birjand
Birjand is the east Iranian provincial capital of South Khorasan and the centre of the county Birjand resp. Quhestan, known for its saffron, barberry, rug and handmade carpet exports....

, Ghayen
Ghayen
Ghayen is a city in and the capital of Ghayen County, in South Khorasan Province, Iran. Ghayen is also called the City of Saffron. Saffron from Ghayen is prized for its unique aroma and strong colour. The population at the 2006 census, was 32,474 in 8,492 families.Ghayen is a place of great...

, Ferdows
Ferdows
Ferdows , also Romanized as Ferdos, Ferdous, and Firdaus; named Toon or Tūn until 1929) is a city in and the capital of Ferdows County, located in the northwest of South Khorasan Province in Iran. It is about south of Mashhad and 200 km northwest of Birjand...

 in South Khorasan Province
South Khorasan Province
South Khorasan Province is a province located in eastern Iran. Birjand is the centre of the province. The other major cities are Ferdows and Qaen....

, along with areas abutting Gonabad
Gonabad
Gonabad is a city in and the capital of Gonabad County, in Razavi Khorasan Province, Iran. At the 2006 census, its population was 34,563, in 9,789 families.It is mostly well-known because of the Gonabadi Dervishes and for its qanats, also known as kareez...

 and Torbat-e Heydarieh
Torbat-e Heydarieh
Torbat-e Heydarieh is a city in and capital of Torbat-e-Heydarieh County, in Razavi Khorasan Province, Iran. At the 2006 census, its population was 119,390, in 31,869 families....

 in Razavi Khorasan Province
Razavi Khorasan Province
Razavi Khorasan Province is a province located in northeastern Iran. Mashhad is the centre and capital of the province.Other cities and townships are Ghouchan, Dargaz, Chenaran, Sarakhs, Fariman, Torbat-e Heydarieh, Torbat-e Jam, Taybad, Khaf, Roshtkhar, Kashmar, Bardaskan, Nishapur, Sabzevar,...

, are its key cropping areas. Afghanistan has resumed cultivation in recent years; in restive Kashmir it has waned. Despite numerous cultivation efforts in such countries as Austria, England, Germany, and Switzerland, only select locales continue the harvest in northern and central Europe. Among these is the small Swiss village of Mund, in the Valais canton, whose annual saffron output amounts to several kilograms. Microscale cultivation occurs in Tasmania, China, Egypt, France, Israel, Mexico, New Zealand, Turkey (especially Safranbolu
Safranbolu
Safranbolu is a town and district of Karabük Province in the Black Sea region of Turkey. It is about two hundred kilometers north of Ankara and about a hundred kilometers south of the Black Sea coast, or more precisely about 9 kilometers north of the city of Karabük...

), California, and Central Africa.
The high cost of saffron is due to the difficulty of manually extracting large numbers of minute stigmas, which are the only part of the crocus with the desired aroma and flavour. An exorbitant number of flowers need to be processed in order to yield marketable amounts of saffron. Obtaining 1 lb (0.45359237 kg) of dry saffron requires the harvesting of some 50,000 flowers, the equivalent of an association football pitch's area of cultivation, or roughly 7140 m² (0.714 ha). By another estimate some 75,000 flowers are needed to produce one pound of dry saffron. This too depends on the typical stigma size of each saffron cultivar. Another complication arises in the flowers' simultaneous and transient blooming. Since so many crocus flowers are needed to yield even derisory quantities of dry saffron, the harvest can be a frenetic affair entailing about forty hours of intense labour. In Kashmir, the thousands of growers must work continuously in relays over the span of one or two weeks throughout both day and night.

Once extracted, the stigmas must be dried quickly, lest decomposition or mold ruin the batch's marketability. The traditional method of drying involves spreading the fresh stigmas over screens of fine mesh, which are then baked over hot coals or wood or in oven-heated rooms where temperatures reach 30 – for 10–12 hours. Afterwards the dried spice is preferably sealed in airtight glass containers. Bulk quantities of lower-grade saffron can reach upwards of 500 per pound; retail costs for small amounts may exceed ten times that rate. In Western countries the average retail price is approximately US$1,000 per pound. Prices vary widely elsewhere, but on average tend to be lower. The high price is somewhat offset by the small quantities needed in kitchens: a few grams at most in medicinal use and a few strands, at most, in culinary applications; there are between 70,000 and 200,000 strands in a pound.

Experienced saffron buyers often have rules of thumb when deliberating on their purchases. They may look for threads exhibiting a vivid crimson colouring, slight moistness, and elasticity. They reject threads displaying the telltale dull brick-red colouring—indicative of old stock—and broken-off debris collected at the container's bottom, indicative of age-related brittle dryness. Such aged samples are most likely encountered around the main June harvest season, when retailers attempt to clear out the previous season's old inventory and make room for the new season's crop. Buyers recommend that only the current season's threads be used. Reputable saffron wholesalers and retailers will indicate the year of harvest or the two years that bracket the harvest date; a late 2002 harvest would thus be shown as "2002/2003".

Culinary use

Saffron features in European, North African, and Asian cuisines. Its aroma is described by taste experts as resembling that of honey, with grassy, hay-like, and metallic notes; according to another such assessment, it tastes of hay, but only with bitter hints. Because it imparts a luminous yellow-orange hue, it is used worldwide in everything from cheeses, confectioneries, and liquors to baked goods, curries, meat dishes, and soups. In past eras, many dishes called for prohibitively copious amounts—hardly for taste, but to parade their wealth.

Because of its high cost saffron was often replaced by or diluted with safflower
Safflower
Safflower is a highly branched, herbaceous, thistle-like annual. It is commercially cultivated for vegetable oil extracted from the seeds. Plants are 30 to 150 cm tall with globular flower heads having yellow, orange or red flowers. Each branch will usually have from one to five flower heads...

 (Carthamus tinctorius) or turmeric
Turmeric
Turmeric is a rhizomatous herbaceous perennial plant of the ginger family, Zingiberaceae. It is native to tropical South Asia and needs temperatures between 20 °C and 30 °C and a considerable amount of annual rainfall to thrive...

 (Curcuma longa) in cuisine. Both mimic saffron's colour well, but have distinctive flavours. Saffron is used in the confectionery and liquor industries; this is its most common use in Italy. Chartreuse
Chartreuse (liqueur)
Chartreuse is a French liqueur made by the Carthusian Monks since the 1740s. It is composed of distilled alcohol aged with 130 herbal extracts. The liqueur is named after the Monks' Grande Chartreuse monastery, located in the Chartreuse Mountains in the general region of Grenoble in France...

, izarra, and strega are types of alcoholic beverages that rely on saffron to provide a flourish of colour and flavour. The savvy often crumble and pre-soak saffron threads for several minutes prior to adding them to their dishes. They may toss threads into water or sherry and leave them to soak for approximately ten minutes. This process extracts the threads' colour and flavour into the liquid phase; powdered saffron does not require this step. The soaking solution is then added to the hot cooking dish, allowing even colour and flavour distribution, which is critical in preparing baked goods or thick sauces.
Threads are a popular condiment for rice in Spain and Iran, India and Pakistan, and other countries. Two examples of such saffron rice
Saffron rice
Saffron rice is a dish made from saffron, white rice and also usually vegetable bouillon. Saffron rice is found in the cuisines of many countries .- India :...

 is the zarzuela fish-seafood stew and paella valenciana
Paella
Paella is a Valencian rice dish that originated in its modern form in the mid-19th century near lake Albufera, a lagoon in Valencia, on the east coast of Spain. Many non-Spaniards view paella as Spain's national dish, but most Spaniards consider it to be a regional Valencian dish...

, a piquant rice-meat preparation. It is likewise used in fabada asturiana
Fabada Asturiana
Fabada Asturiana, often simply known as Fabada, is a rich Spanish bean stew, originally from and most commonly found in the autonomous community of Asturias, but widely available throughout the whole of Spain and in Spanish restaurants worldwide...

, and is essential in making the French bouillabaisse
Bouillabaisse
Bouillabaisse is a seafood soup made with various kinds of cooked fish and shellfish and vegetables, flavored with a variety of herbs and spices such as garlic, orange peel, basil, bay leaf, fennel and saffron. Bouillabaisse is a traditional Provençal fish stew originating from the port city of...

, which is a spicy fish stew from Marseilles, and the Italian risotto
Risotto
Risotto is a class of Italian dishes of rice cooked in broth to a creamy consistency. The broth may be meat-, fish-, or vegetable-based; many kinds include Parmesan cheese, butter, and onion...

 alla milanese
. The saffron bun
Saffron bun
A saffron bun, in Swedish lussebulle or lussekatt, is a rich yeast dough bun that is flavoured with saffron and cinnamon or nutmeg and contains currants. In Sweden, no cinnamon or nutmeg is used in the bun, and raisins are used instead of currants. The buns are baked into many traditional shapes,...

 has Swedish and Cornish variants and in Swedish is known as lussekatt (literally "Lucy cat", after Saint Lucy
Saint Lucy
Saint Lucy , also known as Saint Lucia, was a wealthy young Christian martyr who is venerated as a saint by Roman Catholic, Anglican, Lutheran, and Orthodox Christians. Her feast day in the West is 13 December; with a name derived from lux, lucis "light", she is the patron saint of those who are...

) or lussebulle. The latter is a rich yeast dough bun that is enhanced with saffron, along with cinnamon
Cinnamon
Cinnamon is a spice obtained from the inner bark of several trees from the genus Cinnamomum that is used in both sweet and savoury foods...

 or nutmeg
Nutmeg
The nutmeg tree is any of several species of trees in genus Myristica. The most important commercial species is Myristica fragrans, an evergreen tree indigenous to the Banda Islands in the Moluccas of Indonesia...

 and currant
Ribes
Ribes is a genus of about 150 species of flowering plants native throughout the temperate regions of the Northern Hemisphere. It is usually treated as the only genus in the family Grossulariaceae. Seven subgenera are recognized....

s. They are typically eaten during Advent, and especially on Saint Lucy's Day. In England, the saffron "revel buns" were traditionally baked for anniversary feasts (revels) or for church dedications. In the West of Cornwall, large saffron "tea treat buns" signify Methodist Sunday School outings and activities.

Moroccans use saffron in their tajine
Tajine
A tajine, or tagine , is a dish from North Africa, that is named after the special earthenware pot in which it is cooked. A similar dish, known as tavvas, is found in the cuisine of Cyprus. The traditional tajine pot is formed entirely of a heavy clay, which is sometimes painted or glazed...

-prepared dishes, includingkefta (meatballs with tomato), mqualli (a citron
Citron
Not to be confused with Cintron.The citron is a fragrant citrus fruit, botanically classified as Citrus medica by both the Swingle and Tanaka systems...

-chicken dish), and mrouzia (succulent lamb dressed with plums and almonds). Saffron is key in the chermoula
Chermoula
Chermoula or charmoula is a marinade used in Algerian, Moroccan and Tunisian cooking. It is usually used to flavor fish or seafood, but it can be used on other meats or vegetables....

herb mixture that flavours many Moroccan dishes. Uzbeks use it in a special rice-based offering known as "wedding plov" (cf. pilaf
Pilaf
Pilaf is a dish in which rice is cooked in a seasoned broth . In some cases, the rice may also attain its brown color by being stirred with bits of cooked onion, as well as a large mix of spices...

). Saffron is also essential in chelow kabab
Chelow kabab
Chelow kabab is the national dish of Iran. The meal is simple, consisting of steamed, saffroned basmati or Persian rice and kabab, of which there are several distinct Persian varieties...

, the Iranian national dish. South Asian cuisines uses saffron in biryani
Biryani
Biryani, biriani, or beriani is a set of rice-based foods made with spices, rice and meat, fish, eggs or vegetables. The name is derived from the Persian word beryā which means "fried" or "roasted"....

s
, which are spicy rice-vegetable dishes. (An example is the Pakki variety of Hyderabadi biryani.) Saffron spices subcontinental beef and chicken entrees and goes into many sweets, particularly in Muslim and Rajasthani fare. Modern technology has added another delicacy to the list: saffron ice cream. Regional milk-based sweets feature it, among them gulab jamun
Gulab jamun
Gulab jamun is a popular dessert in countries of the Indian Subcontinent such as India, Pakistan, Sri Lanka, Nepal and Bangladesh. It is made of a dough consisting mainly of milk solids, traditionally, khoya, an Indian milk product is rolled into a ball together with some flour and then deep fried...

, kulfi
Kulfi
Kulfi or Qulfi is a popular frozen dairy dessert from the Indian Subcontinent. It is often described as "traditional Indian Subcontinent ice-cream". It is popular throughout countries such as Pakistan, Bangladesh, Nepal, Burma , and even the Middle East...

, double ka meetha
Double Ka Meetha
Double ka meetha is a dessert of Hyderabad and made from hot crisp fried roundels of bread, soaked in saffron and cardamom flavoured syrup, topped with cream. It is similar to of Shahi tukre....

, and "saffron lassi
Lassi
Lassi is a popular and traditional yogurt-based drink of the Indian Subcontinent. It is made by blending yogurt with water and Indian spices...

"; the last is a spicy yogurt-based Jodhpuri drink that is culturally symbolic.

Medicinal use

Saffron's folkloric uses as an herbal medicine are legendary and legion. It was used for its carminative
Carminative
A carminative, also known as carminativum , is a herb or preparation that either prevents formation of gas in the gastrointestinal tract or facilitates the expulsion of said gas, thereby combating flatulence...

 (suppressing cramps and flatulence) and emmenagogic
Emmenagogue
Emmenagogues are herbs which stimulate blood flow in the pelvic area and uterus; some stimulate menstruation. Women have used plants such as mugwort, parsley and ginger to prevent or terminate early pregnancy...

 (enhancing pelvic blood flow) properties. Medieval Europeans used it to treat respiratory disorders—coughs and colds,scarlet fever, smallpox, cancer, hypoxia, and asthma. Other baleful targets were: blood disorders, insomnia, paralysis, heart diseases, stomach upsets, gout, chronic uterine haemorrhage, dysmorrhea, amenorrhea, infant colic, and eye disorders. For the ancient Persians and Egyptians saffron was an aphrodisiac, a general-use antidote against poisoning, a digestive stimulant, and a tonic for dysentery and measles. European practitioners of the archaic and quixotic "Doctrine of Signatures
Doctrine of signatures
The doctrine of signatures is a philosophy shared by herbalists from the time of Dioscurides and Galen. This doctrine states that herbs that resemble various parts of the body can be used to treat ailments of that part of the body. Examples include the plants liverwort; snakeroot, an antidote for...

" took its yellowish hue as a sign of its putative curative properties against jaundice.

Initial research suggests that carotenoids present in saffron are anticarcinogenic (cancer-suppressing), anti-mutagenic (mutation-preventing), and immunomodulatory. Dimethylcrocetin, the compound thought responsible for these effects, counters a wide range of murine (rodent) tumours and human leukaemia cell lines. Saffron extract also delays ascites tumour growth, delays papilloma carcinogenesis, inhibits squamous cell carcinoma
Squamous cell carcinoma
Squamous cell carcinoma , occasionally rendered as "squamous-cell carcinoma", is a histologically distinct form of cancer. It arises from the uncontrolled multiplication of malignant cells deriving from epithelium, or showing particular cytological or tissue architectural characteristics of...

, and decreases soft tissue sarcoma
Soft tissue sarcoma
A soft-tissue sarcoma is a form of sarcoma that develops in connective tissue, though the term is sometimes applied to elements of the soft tissue that are not currently considered connective tissue.-Risk factors:...

 incidence in treated mice. Researchers theorise that, based on the results of thymidine
Thymidine
Thymidine is a chemical compound, more precisely a pyrimidine deoxynucleoside. Deoxythymidine is the DNA nucleoside T, which pairs with deoxyadenosine in double-stranded DNA...

-uptake studies, such anticancer activity is best attributed to dimethylcrocetin's disruption
Topoisomerase inhibitor
Topoisomerase inhibitors are agents designed to interfere with the action of topoisomerase enzymes , which are enzymes that control the changes in DNA structure by catalyzing the breaking and rejoining of the phosphodiester backbone of DNA strands during the normal cell cycle.In recent years,...

 of the DNA-binding ability of a class of enzymes known as type II topoisomerases. As topoisomerases play a key role in managing DNA topology, the malignant cells are less successful in synthesizing or replicating their own DNA.

Saffron's pharmacological effects on malignant tumours have been documented in several studies: it extends the lives of mice that are intraperitoneally
Peritoneum
The peritoneum is the serous membrane that forms the lining of the abdominal cavity or the coelom — it covers most of the intra-abdominal organs — in amniotes and some invertebrates...

 impregnated with transplanted sarcoma
Sarcoma
A sarcoma is a cancer that arises from transformed cells in one of a number of tissues that develop from embryonic mesoderm. Thus, sarcomas include tumors of bone, cartilage, fat, muscle, vascular, and hematopoietic tissues...

s, namely, samples of S-180, Dalton's lymphoma ascites (DLA), and Ehrlich ascites carcinoma (EAC) tumours. Researchers followed this by orally administering 200 mg (0.00705479242102239 oz) of saffron extract for each kg
Kilogram
The kilogram or kilogramme , also known as the kilo, is the base unit of mass in the International System of Units and is defined as being equal to the mass of the International Prototype Kilogram , which is almost exactly equal to the mass of one liter of water...

 of mouse body weight. As a result the life spans of the tumour-bearing mice were respectively altered to 111.0%, 83.5%, and 112.5% of the baseline or reference span. Researchers also discovered that saffron extract exhibits cytotoxicity in relation to DLA, EAC, P38B, and S-180 tumour cell lines cultured in vitro. Thus, saffron has shown promise as a new and alternative treatment for a variety of cancers.

Besides wound-healing and anticancer properties, saffron is also an antioxidant
Antioxidant
An antioxidant is a molecule capable of inhibiting the oxidation of other molecules. Oxidation is a chemical reaction that transfers electrons or hydrogen from a substance to an oxidizing agent. Oxidation reactions can produce free radicals. In turn, these radicals can start chain reactions. When...

. This means that, as an "anti-aging" agent, it neutralises free radicals. Methanol extractions of saffron neutralise at high rates the DPPH
DPPH
DPPH is a common abbreviation for an organic chemical compound 2,2-diphenyl-1-picrylhydrazyl. It is a dark-colored crystalline powder composed of stable free-radical molecules...

 (IUPAC nomenclature
IUPAC nomenclature
A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry ....

: 1,1-diphenyl-2-picrylhydrazyl) radicals. This occurred via vigorous proton donation to DPPH by two of saffron's active agents, safranal and crocin. At concentrations of 500 and 1000 ppm, crocin studies showed neutralisation of 50% and 65% of radicals, respectively. Safranal displayed a lesser rate of radical neutralisation than crocin. Such findings give saffron extracts promise as an ingredient for use as an antioxidant in pharmaceuticals, cosmetics, and as a food supplement. Saffron ingested at high enough doses is harmful—even lethal. Studies of lab animals have shown that its —median lethal dose, or the dose at which 50% of test animals die from overdose—is 20.7 g
Gram
The gram is a metric system unit of mass....

/kg
Kilogram
The kilogram or kilogramme , also known as the kilo, is the base unit of mass in the International System of Units and is defined as being equal to the mass of the International Prototype Kilogram , which is almost exactly equal to the mass of one liter of water...

 when delivered via decoction
Decoction
Decoction is a method of extraction, by boiling, of dissolved chemicals, or herbal or plant material, which may include stems, roots, bark and rhizomes. Decoction involves first mashing, and then boiling in water to extract oils, volatile organic compounds, and other chemical substances...

. Antidepressant effects have been demonstrated.

Colouring and perfumery

Despite its high cost, saffron has been used as a fabric dye, particularly in China and India. It is in the long run an unstable colouring agent; the imparted vibrant orange-yellow hue quickly fades to a pale and creamy yellow. Even in minute amounts, the saffron stamens yield a luminous yellow-orange; increasing the applied saffron concentration will give fabric of increasingly rich shades of red. Clothing dyed with saffron was traditionally reserved for the noble classes, implying that saffron played a ritualised and status-keying role. It was originally responsible for the vermilion-, ochre-, and saffron-hued robes and mantles worn by Buddhist and Hindu monks. In medieval Ireland and Scotland, well-to-do monks wore a long linen undershirt known as a léine, which was traditionally dyed with saffron. In histology the hematoxylin-phloxine
Phloxine
Phloxine B is a red-colored dye that is used in the hematoxylin-phloxine-saffron stain . It is commonly used to do eosinophil count by hemocytometer....

-saffron (HPS) stain
HPS stain
In histology, the HPS stain, or hematoxylin phloxine saffron stain, is a way of marking tissues.HPS is similar to the standard bearer in histology H&E; however, it differentiates between the most common connective tissue and muscle & cytoplasm unlike H&E stain .HPS stained sections...

 is used as a tissue stain to make biological structures more visible under a microscope.

There have been many attempts to replace saffron with a cheaper dye. Saffron's usual substitutes in food—turmeric and safflower, among others—yield a garishly bright yellow that could hardly be confused with that of saffron. Saffron's main colourant is the flavonoid
Flavonoid
Flavonoids , are a class of plant secondary metabolites....

 crocin; it has been discovered in the less tediously harvested—and hence less costly—gardenia
Gardenia
Gardenia is a genus of 142 species of flowering plants in the coffee family, Rubiaceae, native to the tropical and subtropical regions of Africa, southern Asia, Australasia and Oceania....

 fruit. Research in China is ongoing. In Europe saffron threads were a key component of an aromatic oil known as crocinum, which comprised such motley ingredients as alkanet
Anchusa officinalis
Anchusa officinalis or Common Bugloss or Alkanet is a plant species of the genus Anchusa....

, dragon's blood
Dragon's blood
Dragon's blood is a bright red resin that is obtained from different species of a number of distinct plant genera: Croton, Dracaena, Daemonorops, Calamus rotang and Pterocarpus. The red resin was used in ancient times as varnish, medicine, incense, and dye...

(for colour), and wine (again for colour). Crocinum was applied as a perfume to hair. Another preparation involved mixing saffron with wine to produce a viscous yellow spray; it was copiously applied in sudoriferously sunny Roman amphitheatres—as an air freshener.

External links

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