Ammoniacum or the gum ammoniac is a gum-

resin In polymer chemistry and materials science, resin is a solid or highly viscous substance of plant or synthetic origin that is typically convertible into polymers. Resins are usually mixtures of organic compounds. This article focuses on natu ...

exuded from the several perennial

herb In general use, herbs are a widely distributed and widespread group of plants, excluding vegetables and other plants consumed for macronutrients, with savory or aromatic properties that are used for flavoring and garnishing food, for medicinal ...

s in the genus ''

Ferula ''Ferula'' (from Latin ''ferula'', 'rod') is a genus of about 220 species of flowering plants in the family Apiaceae, native to the Mediterranean region east to central Asia, mostly growing in arid climates. They are herbaceous perennial plants ...

'' of the umbel family (

Apiaceae Apiaceae or Umbelliferae is a family of mostly aromatic flowering plants named after the type genus ''Apium'' and commonly known as the celery, carrot or parsley family, or simply as umbellifers. It is the 16th-largest family of flowering plants ...

). There are three types of ammoniacum: the gums ammoniac of Cyrenaica, of Persia (the commercial one today), and of Morocco.

Ammoniac of Cyrenaica

Ammoniacum was first documented in the 1st century by

Dioscorides Pedanius Dioscorides ( grc-gre, Πεδάνιος Διοσκουρίδης, ; 40–90 AD), “the father of pharmacognosy”, was a Greek physician, pharmacologist, botanist, and author of ''De materia medica'' (, On Medical Material) —a 5-vol ...

in his ''

De materia medica (Latin name for the Greek work , , both meaning "On Medical Material") is a pharmacopoeia of medicinal plants and the medicines that can be obtained from them. The five-volume work was written between 50 and 70 CE by Pedanius Dioscorides, a ...

''. It got its name from the Temple of Jupiter Ammon in

ancient Libya The Latin name ''Libya'' (from Greek Λιβύη: ''Libyē'', which came from Berber: ''Libu'') referred to North Africa during the Iron Age and Classical Antiquity. Berbers occupied the area for thousands of years before the recording of histor ...

(located in the

Siwa Oasis The Siwa Oasis ( ar, واحة سيوة, ''Wāḥat Sīwah,'' ) is an urban oasis in Egypt; between the Qattara Depression and the Great Sand Sea in the Western Desert (Egypt), Western Desert, 50 km (30 mi) east of the Libyan Egypt–Li ...

Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Mediter ...

today) near which it was produced. It is called the gum ammoniac of

Cyrenaica Cyrenaica ( ) or Kyrenaika ( ar, برقة, Barqah, grc-koi, Κυρηναϊκή ��παρχίαKurēnaïkḗ parkhíā}, after the city of Cyrene), is the eastern region of Libya. Cyrenaica includes all of the eastern part of Libya between ...

to differentiate it from the commercial one used today, and its source plant has been identified as ''

Ferula marmarica ''Ferula'' (from Latin ''ferula'', 'rod') is a genus of about 220 species of flowering plants in the family Apiaceae, native to the Mediterranean region east to central Asia, mostly growing in arid climates. They are herbaceous perennial plants ...

'' native to

Libya Libya (; ar, ليبيا, Lībiyā), officially the State of Libya ( ar, دولة ليبيا, Dawlat Lībiyā), is a country in the Maghreb region in North Africa. It is bordered by the Mediterranean Sea to the north, Egypt to Egypt–Libya bo ...

and Egypt. The export of the gum ammoniac of Cyrenaica to

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

declined after

Arab The Arabs (singular: Arab; singular ar, عَرَبِيٌّ, DIN 31635: , , plural ar, عَرَب, DIN 31635: , Arabic pronunciation: ), also known as the Arab people, are an ethnic group mainly inhabiting the Arab world in Western Asia, ...

and Turk domination of the

Middle East The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabian Peninsula, Arabia (including the Arabian Peninsula and Bahrain), Anatolia, Asia Minor (Asian part of Turkey except Hatay Pro ...

, but probably continued at least until the 18th century, as

Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the ...

still cited Libya and Egypt as the places of origin of ammoniacum in his ''Materia medica''.

Ammoniac of Persia

The gum ammoniac of

Persia Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...

gradually replaced the one of Cyrenaica as the commercial ammoniacum exported to Europe. It was probably first mentioned in European literature in 1716 by Michael Bernhard Valentini. Its source plant is ''

Ferula ammoniacum ''Ferula ammoniacum'' (syn. ''Dorema ammoniacum'') is a species of flowering plant in the family Apiaceae, native to Iran, Turkmenistan, Afghanistan, and Pakistan. It is the source of Persian gum ammoniac. References ammoniacum Ammoniacum ...

'' (syn. ''Dorema ammoniacum'') native to

Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...

Turkmenistan Turkmenistan ( or ; tk, Türkmenistan / Түркменистан, ) is a country located in Central Asia, bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the sout ...

Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bordere ...

and

Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...

. The plant grows to the height of 2½ or 3 meters (8 or 9 ft.) and its whole stem is pervaded with a milky juice, which oozes out on an incision being made at any part. This juice quickly hardens into round tears, forming the "tear ammoniacum" of commerce. "Lump ammoniacum", the other form of the substance, consists of aggregations of tears, frequently incorporating fragments of the plant itself, as well as other foreign bodies. Ammoniacum has a faintly fetid,

unpleasant odor An odor (American English) or odour (Commonwealth English; see spelling differences) is caused by one or more volatilized chemical compounds that are generally found in low concentrations that humans and animals can perceive via their sense ...

, which becomes more distinct on heating; externally, it possesses a reddish-yellow appearance, and when the tears or lumps are freshly fractured they exhibit a waxy luster. It is chiefly collected in central

, and comes to the European market by way of

Bombay Mumbai (, ; also known as Bombay — the official name until 1995) is the capital city of the Indian state of Maharashtra and the ''de facto'' financial centre of India. According to the United Nations, as of 2018, Mumbai is the second- ...

. Ammoniacum is closely related to

asafoetida Asafoetida (; also spelled asafetida) is the dried latex ( gum oleoresin) exuded from the rhizome or tap root of several species of ''Ferula'', perennial herbs growing tall. They are part of the celery family, Umbelliferae. Asafoetida is thou ...

and

galbanum Galbanum is an aromatic gum resin and a product of certain umbelliferous Persian plant species in the genus ''Ferula'', chiefly ''Ferula gummosa'' (synonym ''F. galbaniflua'') and ''Ferula rubricaulis''. Galbanum-yielding plants grow plentifull ...

(from which, however, it differs in yielding no

umbelliferone Umbelliferone, also known as 7-hydroxycoumarin, hydrangine, skimmetine, and ''beta''-umbelliferone, is a natural product of the coumarin family. It absorbs ultraviolet light strongly at several wavelengths. There are some indications that this ch ...

) both in regard to the plant which yields it and its putative effects.

Ammoniac of Morocco

The gum ammoniac of Morocco first received attention in Europe in 1809 when James Grey Jackson described a plant producing the gum ammoniac of Barbary. The source plant has been identified as ''

Ferula communis ''Ferula communis'', the giant fennel, is a species of flowering plant in the carrot family Apiaceae Apiaceae or Umbelliferae is a family of mostly aromatic flowering plants named after the type genus '' Apium'' and commonly known as the ce ...

'' subsp. ''brevifolia'' native to

Morocco Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to ...

Algeria ) , image_map = Algeria (centered orthographic projection).svg , map_caption = , image_map2 = , capital = Algiers , coordinates = , largest_city = capital , relig ...

and the

Canary Islands The Canary Islands (; es, Canarias, ), also known informally as the Canaries, are a Spanish autonomous community and archipelago in the Atlantic Ocean, in Macaronesia. At their closest point to the African mainland, they are west of Morocc ...

. Though it has been used by local people as herbal medicine for hundreds of years, it probably has never been commercially important in Europe.

References

{{reflist Resins

Ammoniac of Cyrenaica

Ammoniac of Persia

Ammoniac of Morocco

See also

References