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Nutmeg is the seed or ground spice of several species of the genus '' Myristica''. '' Myristica fragrans'' (fragrant nutmeg or true nutmeg) is a dark-leaved evergreen tree cultivated for two spices derived from its fruit: nutmeg, from its seed, and mace, from the seed covering. It is also a commercial source of an
essential oil An essential oil is a concentrated hydrophobic liquid containing volatile (easily evaporated at normal temperatures) chemical compounds from plants. Essential oils are also known as volatile oils, ethereal oils, aetheroleum, or simply as the o ...
and nutmeg butter.
Conifer Conifers are a group of conifer cone, cone-bearing Spermatophyte, seed plants, a subset of gymnosperms. Scientifically, they make up the phylum, division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single ...
s of the genus '' Torreya'', commonly known as the nutmeg yews, have edible seeds of similar appearance, but are not closely related to ''Myristica fragrans'', and are not used as a spice. Indonesia is the main producer of nutmeg and mace. If consumed in amounts exceeding its typical use as a spice, nutmeg powder may produce allergic reactions, cause contact dermatitis, or have
psychoactive A psychoactive drug, psychopharmaceutical, psychoactive agent or psychotropic drug is a chemical substance, that changes functions of the nervous system, and results in alterations in perception, mood, consciousness, cognition or behavior. Th ...
effects. Although used in traditional medicine for treating various disorders, nutmeg has no scientifically confirmed medicinal value.


Common nutmeg

Nutmeg is the spice made by grinding the seed of the fragrant nutmeg tree ('' Myristica fragrans'') into powder. The spice has a distinctive pungent fragrance and a warm, slightly sweet taste; it is used to flavor many kinds of baked goods, confections,
pudding Pudding is a type of food. It can be either a dessert or a savoury (salty or spicy) dish served as part of the main meal. In the United States, ''pudding'' means a sweet, milk-based dessert similar in consistency to egg-based custards, ins ...
s, potatoes, meats, sausages, sauces, vegetables, and such beverages as eggnog. The seeds are dried gradually in the sun over a period of six to eight weeks. During this time the nutmeg shrinks away from its hard seed coat until the kernels rattle in their shells when shaken. The shell is then broken with a wooden club and the nutmegs are picked out. Dried nutmegs are grayish brown ovoids with furrowed surfaces. The nutmegs are roughly egg-shaped, about long and wide, weighing dried. Two other species of genus ''Myristica'' with different flavors, '' M. malabarica'' and '' M. argentea'', are sometimes used to adulterate nutmeg as a spice.


Mace

Mace is the spice made from the reddish seed covering (
aril An aril (pronounced ), also called an arillus, is a specialized outgrowth from a seed that partly or completely covers the seed. An arillode or false aril is sometimes distinguished: whereas an aril grows from the attachment point of the see ...
) of the nutmeg seed. Its flavour is similar to nutmeg but more delicate; it is used to flavour baked goods, meat, fish, and vegetables, and in preserving and pickling. In the processing of mace, the crimson-colored aril is removed from the nutmeg seed that it envelops and is flattened out and dried for 10 to 14 days. Its color changes to pale yellow, orange, or tan. Whole dry mace consists of flat pieces—smooth, horn-like, and brittle—about long.


Botany and cultivation

The most important commercial species is the common, true or fragrant nutmeg, '' Myristica fragrans'' ( Myristicaceae), native to the Moluccas (or Spice Islands) of Indonesia. It is also cultivated on
Penang Penang ( ms, Pulau Pinang, is a Malaysian state located on the northwest coast of Peninsular Malaysia, by the Malacca Strait. It has two parts: Penang Island, where the capital city, George Town, is located, and Seberang Perai on the Malay ...
Island in Malaysia, in the
Caribbean The Caribbean (, ) ( es, El Caribe; french: la Caraïbe; ht, Karayib; nl, De Caraïben) is a region of the Americas that consists of the Caribbean Sea, its islands (some surrounded by the Caribbean Sea and some bordering both the Caribbean Se ...
, especially in
Grenada Grenada ( ; Grenadian Creole French: ) is an island country in the West Indies in the Caribbean Sea at the southern end of the Grenadines island chain. Grenada consists of the island of Grenada itself, two smaller islands, Carriacou and Pe ...
, and in Kerala, a state formerly known as Malabar in ancient writings as the hub of spice trading, in southern India. In the 17th-century work '' Hortus Botanicus Malabaricus'',
Hendrik van Rheede Hendrik Adriaan van Rheede tot Drakenstein (Amsterdam, 13 April 1636 – at sea, 15 December 1691) was a military man and a colonial administrator of the Dutch East India Company and naturalist. Between 1669 and 1676 he served as a governor of D ...
records that
Indians Indian or Indians may refer to: Peoples South Asia * Indian people, people of Indian nationality, or people who have an Indian ancestor ** Non-resident Indian, a citizen of India who has temporarily emigrated to another country * South Asia ...
learned the usage of nutmeg from the Indonesians through ancient trade routes. Nutmeg trees are
dioecious plant Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproductio ...
s (individual plants are either male or female) which are propagated sexually from seeds and asexually from cuttings or
grafting Grafting or graftage is a horticultural technique whereby tissues of plants are joined so as to continue their growth together. The upper part of the combined plant is called the scion () while the lower part is called the rootstock. The succ ...
. Sexual propagation yields 50% male seedlings, which are unproductive. Because there is no reliable method of determining plant sex before flowering in the sixth to eighth year, and sexual reproduction bears inconsistent yields, grafting is the preferred method of propagation. Epicotyl grafting (a variation of cleft grafting using seedlings), approach grafting, and patch budding have proved successful, with epicotyl grafting being the most widely adopted standard.
Air layering Layering has evolved as a common means of vegetative propagation of numerous species in natural environments. Layering is also utilized by horticulturists to propagate desirable plants. Natural layering typically occurs when a branch touches ...
is an alternative though not preferred method because of its low (35–40%) success rate. The first harvest of nutmeg trees takes place seven to nine years after planting, and the trees reach full production after twenty years.


Culinary uses


Spice

Nutmeg and mace have similar sensory qualities, with nutmeg having a slightly sweeter and mace a more delicate flavour. Mace is often preferred in light dishes for the bright orange, saffron-like hue it imparts. Nutmeg is used for flavouring many dishes. Whole nutmeg can also be ground at home using a grater specifically designed for nutmeg or a multi-purpose grating tool. In
Indonesian cuisine Indonesian cuisine is a collection of various regional culinary traditions that formed the archipelagic nation of Indonesia. There are a wide variety of recipes and cuisines in part because Indonesia is composed of approximately 6,000 popula ...
, nutmeg is used in dishes, such as spicy soups including variants of ''soto'', '' konro'', oxtail soup, ''sup iga'' (ribs soup), '' bakso'', and ''
sup kambing Sup kambing or sop kambing is a Southeast Asian mutton soup, commonly found in Brunei Darussalam, Indonesia, Malaysia, Singapore. It is prepared with goat meat, tomato, celery, spring onion, ginger, candlenut and lime leaf, its broth is yello ...
''. It is also used in gravy for meat dishes, such as '' semur'', beef stew, ribs with tomato, and European derived dishes such as ''bistik'' (beef steak), ''rolade'' (minced meat roll), and ''bistik lidah'' (beef tongue steak). In Indian cuisine, nutmeg is used in many sweet, as well as savoury, dishes. In Kerala Malabar region, grated nutmeg is used in meat preparations and also sparingly added to desserts for the flavour. It may also be used in small quantities in '' garam masala''. Ground nutmeg is also smoked in India. In traditional
European cuisine European cuisine comprises the cuisines of Europe "European Cuisine."potato and spinach dishes and in processed meat products; they are also used in soups, sauces, and baked goods. It is also commonly used in rice pudding. In Dutch cuisine, nutmeg is added to vegetables such as Brussels sprouts, cauliflower, and string beans. Nutmeg is a traditional ingredient in mulled cider, mulled wine,
junket Junket may refer to: *Junket (dessert), a dessert made of flavoured, sweetened curds *Junket (company), a brand name of rennet tablets and dessert mixes *Film promotion, or press junket, meaning the interviews, advertising, and press releases crea ...
and eggnog. In Scotland, mace and nutmeg are usually both ingredients in haggis. In Italian cuisine, nutmeg is used as part of the stuffing for many regional meat-filled dumplings like tortellini, as well as for the traditional meatloaf. Nutmeg is a common spice for pumpkin pie and in recipes for other winter squashes, such as baked acorn squash. In the Caribbean, nutmeg is often used in drinks, such as the
Bushwacker Bushwhacking was a form of guerrilla warfare common during the American Revolutionary War, War of 1812, American Civil War and other conflicts in which there were large areas of contested land and few governmental resources to control these tra ...
, Painkiller, and Barbados rum punch. Typically, it is a sprinkle on top of the drink.


Fruit

The pericarp (fruit covering) is used to make jam, or is finely sliced, cooked with sugar, and crystallised to make a fragrant candy. Sliced nutmeg fruit flesh is made as ''manisan'' (sweets), either wet, which is seasoned in sugary syrup liquid, or dry coated with sugar, a dessert called ''manisan pala'' in Indonesia. In
Penang cuisine Penang cuisine is the cuisine of the multicultural society of Penang, Malaysia. Most of these cuisine are sold at road-side stalls, known as "hawker food" and colloquially as "muckan carts". Local Penangites typically find these hawker fares ...
, dried, shredded nutmeg rind with sugar coating is used as toppings on the uniquely Penang '' ais kacang''. Nutmeg rind is also blended (creating a fresh, green, tangy taste and white colour juice) or boiled (resulting in a much sweeter and brown juice) to make iced nutmeg juice. In Kerala Malabar region of India, it is used for juice, pickles and chutney.


Essential oil

The essential oil obtained by
steam distillation Steam distillation is a separation process that consists in distilling water together with other volatile and non-volatile components. The steam from the boiling water carries the vapor of the volatiles to a condenser; both are cooled and ret ...
of ground nutmeg is used in the
perfumery Perfume (, ; french: parfum) is a mixture of fragrant essential oils or aroma compounds (fragrances), fixatives and solvents, usually in liquid form, used to give the human body, animals, food, objects, and living-spaces an agreeable scent. Th ...
and pharmaceutical industries. The volatile fraction contains dozens of terpenes and
phenylpropanoid The phenylpropanoids are a diverse family of organic compounds that are synthesized by plants from the amino acids phenylalanine and tyrosine. Their name is derived from the six-carbon, aromatic phenyl group and the three-carbon propene tail of ...
s, including - pinene, limonene, -
borneol Borneol is a bicyclic organic compound and a terpene derivative. The hydroxyl group in this compound is placed in an '' endo'' position. The exo diastereomer is called isoborneol. Being chiral, borneol exists as enantiomers, both of which are foun ...
, - terpineol, geraniol, safrol, and
myristicin Myristicin is a naturally occurring compound found in common herbs and spices, the most well known being nutmeg. It is an insecticide, and has been shown to enhance the effectiveness of other insecticides in combination. Myristicin is also a pre ...
. In its pure form, myristicin is a toxin, and consumption of excessive amounts of nutmeg can result in myristicin poisoning. The oil is colorless or light yellow, and smells and tastes of nutmeg. It is used as a natural food flavoring in baked goods, syrups, beverages, and sweets. It is used to replace ground nutmeg, as it leaves no particles in the food. The essential oil is also used in the manufacturing of toothpaste and
cough syrup Cold medicines are a group of medications taken individually or in combination as a treatment for the symptoms of the common cold and similar conditions of the upper respiratory tract. The term encompasses a broad array of drugs, including a ...
s.


Nutmeg butter

Nutmeg butter is obtained from the nut by expression. It is semisolid, reddish-brown in colour, and has the taste and smell of nutmeg itself. About 75% (by weight) of nutmeg butter is trimyristin, which can be turned into myristic acid, a 14-carbon fatty acid, which can be used as a replacement for cocoa butter, can be mixed with other fats like cottonseed oil or
palm oil Palm oil is an edible vegetable oil derived from the mesocarp (reddish pulp) of the fruit of the oil palms. The oil is used in food manufacturing, in beauty products, and as biofuel. Palm oil accounted for about 33% of global oils produced from ...
, and has applications as an industrial
lubricant A lubricant (sometimes shortened to lube) is a substance that helps to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move. It may also have the function of transmitting forces, t ...
.


History

The earliest evidence of use of nutmeg comes in the form of 3,500 year old potsherd residues from the island of Pulau Ai, one of the Banda Islands in eastern Indonesia. The Banda Islands consist of eleven small volcanic islands, and are part of the larger Maluku Islands group. These islands were the only source of nutmeg and mace production until the mid-19th century. In the 6th century AD, nutmeg spread to India, then further west to Constantinople. By the 13th century, Arab traders had pinpointed the origin of nutmeg to the Indonesian islands, but kept this location a secret from European traders.


Colonial era

The Banda Islands became the scene of the earliest European ventures in Asia, in order to get a grip on the spice trade. In August 1511,
Afonso de Albuquerque Afonso de Albuquerque, 1st Duke of Goa (; – 16 December 1515) was a Portuguese general, admiral, and statesman. He served as viceroy of Portuguese India from 1509 to 1515, during which he expanded Portuguese influence across the Indian Ocean ...
conquered
Malacca Malacca ( ms, Melaka) is a state in Malaysia located in the southern region of the Malay Peninsula, next to the Strait of Malacca. Its capital is Malacca City, dubbed the Historic City, which has been listed as a UNESCO World Heritage Site si ...
, which at the time was the hub of Asian trade, on behalf of the king of Portugal. In November of the same year, after having secured Malacca and learning of Banda's location, Albuquerque sent an expedition of three ships led by his friend António de Abreu to find it. Malay pilots, either recruited or forcibly conscripted, guided them via Java, the
Lesser Sundas The Lesser Sunda Islands or nowadays known as Nusa Tenggara Islands ( id, Kepulauan Nusa Tenggara, formerly ) are an archipelago in Maritime Southeast Asia, north of Australia. Together with the Greater Sunda Islands to the west they make up ...
, and
Ambon Ambon may refer to: Places * Ambon Island, an island in Indonesia ** Ambon, Maluku, a city on Ambon Island, the capital of Maluku province ** Governorate of Ambon, a colony of the Dutch East India Company from 1605 to 1796 * Ambon, Morbihan, a co ...
to the Banda Islands, arriving in early 1512. The first Europeans to reach the Banda Islands, the expedition remained for about a month, buying and filling their ships with Banda's nutmeg and mace, and with
clove Cloves are the aromatic flower buds of a tree in the family Myrtaceae, ''Syzygium aromaticum'' (). They are native to the Maluku Islands (or Moluccas) in Indonesia, and are commonly used as a spice, flavoring or fragrance in consumer products, ...
s in which Banda had a thriving ''entrepôt'' trade. An early account of Banda is in ''Suma Oriental'', a book written by the Portuguese apothecary Tomé Pires, based in Malacca from 1512 to 1515. Full control of this trade by the Portuguese was not possible, and they remained participants without a foothold in the islands. In order to obtain a monopoly on the production and trade of nutmeg, the Dutch East India Company (VOC) waged a bloody battle with the Bandanese in 1621. Historian Willard Hanna estimated that before this struggle the islands were populated by approximately 15,000 people, and only 1,000 were left (the Bandanese were killed, starved while fleeing, exiled, or sold as slaves). The Company constructed a comprehensive nutmeg plantation system on the islands during the 17th century. As a result of the Dutch
interregnum An interregnum (plural interregna or interregnums) is a period of discontinuity or "gap" in a government, organization, or social order. Archetypally, it was the period of time between the reign of one monarch and the next (coming from Latin '' ...
during the Napoleonic Wars, the British invaded and temporarily took control of the Banda Islands from the Dutch and transplanted nutmeg trees, complete with soil, to
Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
, Penang, Bencoolen, and Singapore. From these locations they were transplanted to their other colonial holdings elsewhere, notably Zanzibar and Grenada. The national
flag of Grenada The flag of Grenada consists of two yellow triangles at the top and bottom and two green triangles at the hoist and fly. These are surrounded by a red border charged with six five-pointed yellow stars – three at the top centre and three at ...
, adopted in 1974, shows a stylised split-open nutmeg fruit. The Dutch retained control of the Spice Islands until World War II. It has been suggested that Connecticut received its nickname ("the Nutmeg State", "
Nutmegger Nutmegger is a nickname for people from the US state of Connecticut. The official nickname for Connecticut is "The Constitution State", as voted in 1958 by the Connecticut state legislature; however "The Nutmeg State" is an unofficial nickname for ...
") from the claim that some unscrupulous Connecticut traders would whittle "nutmeg" out of wood, creating a "wooden nutmeg", a term which later came to mean any type of fraud. This narrative may have to do with the issue that one has to grate to obtain the spice powder, not crack a nutmeg, and this may not have been widely known by some purchasers of the product.


Traditional uses

Nutmeg is used as a traditional remedy for digestive disorders including indigestion in many part of India, especially Kerala. The fruit is eaten raw in small quantities to help with nausea and motion sickness. It is believed that the spice has antimicrobial, antibacterial, and anti-inflammatory properties.


Production

In 2019, global production of nutmeg was 142,000 tonnes, led by Indonesia,
Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H ...
, and India, having 38,000 to 43,000 tonnes each and a combined 85% of the world total.


Psychoactivity and toxicity

Although used as a
folk treatment Traditional medicine (also known as indigenous medicine or folk medicine) comprises medical aspects of traditional knowledge that developed over generations within the folk beliefs of various societies, including indigenous peoples, before the ...
for some ailments, nutmeg may have no proven medicinal value.


Effects

Ingested in small amounts as a spice, nutmeg produces no noticeable physiological or neurological response, but in large doses, both raw nutmeg freshly ground from kernels and
nutmeg oil Nutmeg oil is a volatile essential oil from nutmeg (''Myristica fragrans''). The oil is colorless or light yellow and smells and tastes of nutmeg. It contains numerous components of interest to the oleochemical industry. The essential oil consist ...
have
psychoactive A psychoactive drug, psychopharmaceutical, psychoactive agent or psychotropic drug is a chemical substance, that changes functions of the nervous system, and results in alterations in perception, mood, consciousness, cognition or behavior. Th ...
effects, which appear to derive from anticholinergic-like hallucinogenic mechanisms attributed to
myristicin Myristicin is a naturally occurring compound found in common herbs and spices, the most well known being nutmeg. It is an insecticide, and has been shown to enhance the effectiveness of other insecticides in combination. Myristicin is also a pre ...
and
elemicin Elemicin is a phenylpropene, a natural organic compound, and is a constituent of several plant species' essential oils. Natural occurrence Elemicin is a constituent of the oleoresin and the essential oil of ''Canarium luzonicum'' (also referred ...
. Myristicin—a
monoamine oxidase inhibitor Monoamine oxidase inhibitors (MAOIs) are a class of drugs that inhibit the activity of one or both monoamine oxidase enzymes: monoamine oxidase A (MAO-A) and monoamine oxidase B (MAO-B). They are best known as effective antidepressants, espe ...
and psychoactive substance—can cause convulsions,
palpitations Palpitations are perceived abnormalities of the heartbeat characterized by awareness of cardiac muscle contractions in the chest, which is further characterized by the hard, fast and/or irregular beatings of the heart. Symptoms include a rapi ...
, nausea, eventual dehydration, and generalized body pain when consumed in large amounts. Nutmeg usage may increase endocannabinoids like anandamide and
2-AG 2-Arachidonoylglycerol (2-AG) is an endocannabinoid, an endogenous agonist of the CB1 receptor and the primary endogenous ligand for the CB2 receptor. It is an ester formed from the omega-6 fatty acid arachidonic acid and glycerol. It is present ...
levels or delay their breakdown by inhibiting
FAAH Fatty acid amide hydrolase or FAAH (, oleamide hydrolase, anandamide amidohydrolase) is a member of the serine hydrolase family of enzymes. It was first shown to break down anandamide in 1993. In humans, it is encoded by the gene ''FAAH''.; Fun ...
and MAGL. Nutmeg may interact with anxiolytic drugs, produce allergic reactions, cause contact dermatitis, and evoke acute episodes of psychosis. Varying considerably from person to person, nutmeg
intoxication Intoxication — or poisoning, especially by an alcoholic or narcotic substance — may refer to: * Substance intoxication: ** Alcohol intoxication ** LSD intoxication ** Toxidrome ** Tobacco intoxication ** Cannabis intoxication ** Cocaine i ...
may occur with side effects, such as
delirium Delirium (also known as acute confusional state) is an organically caused decline from a previous baseline of mental function that develops over a short period of time, typically hours to days. Delirium is a syndrome encompassing disturbances in ...
, anxiety, confusion, headaches, nausea, dizziness, dry mouth, eye irritation, and
amnesia Amnesia is a deficit in memory caused by brain damage or disease,Gazzaniga, M., Ivry, R., & Mangun, G. (2009) Cognitive Neuroscience: The biology of the mind. New York: W.W. Norton & Company. but it can also be caused temporarily by the use ...
. Intoxication takes several hours to reach maximum effect, and effects may last for several days. Rarely, nutmeg overdose causes death, especially if the nutmeg is combined with other drugs. Incidents of fatal poisoning from nutmeg and myristicin individually are uncommon. Nutmeg poisonings occur by accidental consumption in children and by intentional recreational use. It is used recreationally with the intention of achieving a low-cost high resembling psychedelics, particularly by adolescents, drug users, college students, and prisoners. Relatively large doses of nutmeg are required to produce effects; a majority of reported nutmeg intoxication cases appear to be the result of recreational use.


Toxicity during pregnancy

Nutmeg was once considered an
abortifacient An abortifacient ("that which will cause a miscarriage" from Latin: ''abortus'' "miscarriage" and '' faciens'' "making") is a substance that induces abortion. This is a nonspecific term which may refer to any number of substances or medications, ...
, but may be safe during pregnancy if used only in flavoring amounts. If consumed in large amounts, nutmeg could cause premature labor and miscarriage. Nutmeg may also interact with pain-relievers such as pethidine, so it is recommended that it be avoided during pregnancy.


Toxicity to pets

The scent of nutmeg may attract pets, but it can be poisonous to them if they consume too much.


References


External links

* * {{Authority control Flora of the Maluku Islands Indian spices Medicinal plants Myristica National symbols of Grenada Non-timber forest products Spices