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Thyme () is the herb (dried aerial parts) of some members of the genus ''
Thymus The thymus is a specialized primary lymphoid organ of the immune system. Within the thymus, thymus cell lymphocytes or ''T cells'' mature. T cells are critical to the adaptive immune system, where the body adapts to specific foreign invaders. ...
'' of aromatic perennial evergreen herbs in the mint family
Lamiaceae The Lamiaceae ( ) or Labiatae are a family of flowering plants commonly known as the mint, deadnettle or sage family. Many of the plants are aromatic in all parts and include widely used culinary herbs like basil, mint, rosemary, sage, savory ...
. Thymes are relatives of the
oregano Oregano (, ; ''Origanum vulgare'') is a species of flowering plant in the mint family Lamiaceae. It was native to the Mediterranean region, but widely naturalised elsewhere in the temperate Northern Hemisphere. Oregano is a woody perennial pla ...
genus ''
Origanum ''Origanum'' ( ) is a genus of herbaceous perennials and subshrubs in the family Lamiaceae, native to Europe, North Africa, and much of temperate Asia, where they are found in open or mountainous habitats. A few species also naturalized in sc ...
'', with both plants being mostly indigenous to the
Mediterranean region In biogeography, the Mediterranean Basin (; also known as the Mediterranean Region or sometimes Mediterranea) is the region of lands around the Mediterranean Sea that have mostly a Mediterranean climate, with mild to cool, rainy winters and wa ...
. Thymes have culinary, medicinal, and ornamental uses, and the species most commonly cultivated and used for culinary purposes is ''
Thymus vulgaris ''Thymus vulgaris'' (common thyme, German thyme, garden thyme or just thyme) is a species of flowering plant in the mint family Lamiaceae, native to southern Europe from the western Mediterranean to southern Italy. Growing to tall by wide, it ...
''.


History

Thyme is indigenous to the
Mediterranean region In biogeography, the Mediterranean Basin (; also known as the Mediterranean Region or sometimes Mediterranea) is the region of lands around the Mediterranean Sea that have mostly a Mediterranean climate, with mild to cool, rainy winters and wa ...
. Wild thyme grows in the
Levant The Levant () is an approximate historical geographical term referring to a large area in the Eastern Mediterranean region of Western Asia. In its narrowest sense, which is in use today in archaeology and other cultural contexts, it is eq ...
, where it might have been first cultivated. Ancient Egyptians used thyme for
embalming Embalming is the art and science of preserving human remains by treating them (in its modern form with chemicals) to forestall decomposition. This is usually done to make the deceased suitable for public or private viewing as part of the funeral ...
. The
ancient Greeks Ancient Greece ( el, Ἑλλάς, Hellás) was a northeastern Mediterranean civilization, existing from the Greek Dark Ages of the 12th–9th centuries BC to the end of classical antiquity ( AD 600), that comprised a loose collection of cultu ...
used it in their baths and burnt it as
incense Incense is aromatic biotic material that releases fragrant smoke when burnt. The term is used for either the material or the aroma. Incense is used for aesthetic reasons, religious worship, aromatherapy, meditation, and ceremony. It may also be ...
in their temples, believing it was a source of
courage Courage (also called bravery or valor) is the choice and willingness to confront agony, pain, danger, uncertainty, or intimidation. Valor is courage or bravery, especially in battle. Physical courage is bravery in the face of physical pain, h ...
. The spread of thyme throughout Europe was thought to be due to the
Romans Roman or Romans most often refers to: *Rome, the capital city of Italy * Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of ancient Rome *''Epistle to the Romans'', shortened to ''Romans'', a lette ...
, as they used it to purify their rooms and to "give an aromatic flavour to cheese and liqueurs". In the European
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire a ...
, the herb was placed beneath pillows to aid sleep and ward off nightmares.Huxley, A., ed. (1992). ''New RHS Dictionary of Gardening''. Macmillan. In this period, women also often gave
knight A knight is a person granted an honorary title of knighthood by a head of state (including the Pope) or representative for service to the monarch, the church or the country, especially in a military capacity. Knighthood finds origins in the Gr ...
s and warriors gifts that included thyme leaves, as it was believed to bring courage to the bearer. Thyme was also used as incense and placed on
coffin A coffin is a funerary box used for viewing or keeping a corpse, either for burial or cremation. Sometimes referred to as a casket, any box in which the dead are buried is a coffin, and while a casket was originally regarded as a box for jewel ...
s during
funerals A funeral is a ceremony connected with the final disposition of a corpse, such as a burial or cremation, with the attendant observances. Funerary customs comprise the complex of beliefs and practices used by a culture to remember and respect th ...
, as it was supposed to assure passage into the next life. The name of the genus of fish ''
Thymallus ''Thymallus'' is a genus of freshwater fish in the salmon family Salmonidae; it is the only genus of subfamily Thymallinae. The type species is ''Thymallus thymallus,'' the grayling. The species in the genus are generically called graylings, but ...
'', first given to the grayling (''T. thymallus'', described in the 1758 edition of ''Systema Naturae'' by Swedish zoologist
Carl 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 ...
), originates from the faint smell of thyme that emanates from the flesh.


Cultivation

Thyme is best cultivated in a hot, sunny location with well-drained soil. It is generally planted in the spring, and thereafter grows as a
perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...
. It can be propagated by seed, cuttings, or dividing rooted sections of the plant. It tolerates drought well. The plant can take deep freezes and is found growing wild on mountain highlands. It grows well on dry slopes and is propagated by cuttings. It can be pruned after flowering to keep from getting woody.


Aroma components

Gas chromatographic analysis Gas chromatography (GC) is a common type of chromatography used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. Typical uses of GC include testing the purity of a particular substance, ...
reveals that the most abundant volatile component of thyme leaves is
thymol Thymol (also known as 2-isopropyl-5-methylphenol, IPMP), , is a natural monoterpenoid phenol derivative of ''p''-Cymene, isomeric with carvacrol, found in oil of thyme, and extracted from ''Thymus vulgaris'' (common thyme), ajwain, and vario ...
8.55 mg/g. Other components are
carvacrol Carvacrol, or cymophenol, C6H3(CH3)(OH)C3H7, is a monoterpenoid phenol. It has a characteristic pungent, warm odor of oregano. Natural occurrence Carvacrol is present in the essential oil of ''Origanum vulgare'' (oregano), oil of thyme, oil ob ...
,
linalool Linalool () refers to two enantiomers of a naturally occurring terpene alcohol found in many flowers and spice plants. Linalool has multiple commercial applications, the majority of which are based on its pleasant scent (floral, with a touch of ...
, α-terpineol, and 1,8-
cineole Eucalyptol is a monoterpenoid. A colorless liquid, it is a bicyclic ether. Eucalyptol has a fresh mint-like smell and a spicy, cooling taste. It is insoluble in water, but miscible with organic solvents. Eucalyptol makes up ~70% - 90% of eucaly ...
. Several are also found in basil. Some exhibit
antioxidant Antioxidants are compounds that inhibit oxidation, a chemical reaction that can produce free radicals. This can lead to polymerization and other chain reactions. They are frequently added to industrial products, such as fuels and lubricant ...
properties.


Culinary use

In some
Levant The Levant () is an approximate historical geographical term referring to a large area in the Eastern Mediterranean region of Western Asia. In its narrowest sense, which is in use today in archaeology and other cultural contexts, it is eq ...
ine countries, and Assyria, the condiment ''
za'atar Za'atar ( ; ar, زَعْتَر, ) is a culinary herb or family of herbs. It is also the name of a spice mixture that includes the herb along with toasted sesame seeds, dried sumac, often salt, as well as other spices. As a family of related ...
'' (
Arabic Arabic (, ' ; , ' or ) is a Semitic languages, Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C ...
for both thyme and
marjoram Marjoram (; ''Origanum majorana'') is a cold-sensitive perennial herb or undershrub with sweet pine and citrus flavours. In some Middle Eastern countries, marjoram is synonymous with oregano, and there the names sweet marjoram and knotted mar ...
) contains many of the essential oils found in thyme. Thyme is a common component of the ''
bouquet garni The ''bouquet garni'' ( French for "garnished bouquet"; ) is a bundle of herbs usually tied with string and mainly used to prepare soup, stock, casseroles and various stews. The bouquet is cooked with the other ingredients and removed prior to ...
'', and of ''
herbes de Provence (; oc, label= Provençal, èrbas de Provença) is a mixture of dried herbs considered typical of the Provence region of southeastern France. Formerly simply a descriptive term, commercial blends started to be sold under this name in the 1970s. T ...
''. Thyme is sold both fresh and dried. While summer-seasonal, fresh greenhouse thyme is often available year-round. The fresh form is more flavourful, but also less convenient; storage life is rarely more than a week. However, the fresh form can last many months if carefully frozen. Fresh thyme is commonly sold in bunches of sprigs. A sprig is a single stem snipped from the plant. It is composed of a woody stem with paired leaf or flower clusters ("leaves") spaced apart. A recipe may measure thyme by the bunch (or fraction thereof), or by the sprig, or by the tablespoon or teaspoon. Dried thyme is widely used in Armenia in
tisane Herbal teas, also known as herbal infusions and less commonly called tisanes (UK and US , US also ), are beverages made from the infusion or decoction of herbs, spices, or other plant material in hot water. Oftentimes herb tea, or the plain term ...
s (called ''urc''). Depending on how it is used in a dish, the whole sprig may be used (e.g., in a ''bouquet garni''), or the leaves removed and the stems discarded. Usually, when a recipe specifies "bunch" or "sprig", it means the whole form; when it specifies spoons, it means the leaves. It is perfectly acceptable to substitute dried for whole thyme. Leaves may be removed from stems either by scraping with the back of a knife, or by pulling through the fingers or tines of a fork. Thyme retains its flavour on drying better than many other herbs.


Antimicrobial properties

Oil of thyme, the
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 ...
of common thyme (''
Thymus vulgaris ''Thymus vulgaris'' (common thyme, German thyme, garden thyme or just thyme) is a species of flowering plant in the mint family Lamiaceae, native to southern Europe from the western Mediterranean to southern Italy. Growing to tall by wide, it ...
''), contains 20–54% thymol.Thymus Vulgaris. PDR for Herbal Medicine. Montvale, NJ: Medical Economics Company. p. 1184. Thyme essential oil also contains a range of additional compounds, such as ''p''-cymene,
myrcene Myrcene, or β-myrcene, is a monoterpene. A colorless oil, it occurs widely in essential oils. It is produced mainly semi-synthetically from '' Myrcia'', from which it gets its name. It is an intermediate in the production of several fragrances. Π...
,
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 ...
, and
linalool Linalool () refers to two enantiomers of a naturally occurring terpene alcohol found in many flowers and spice plants. Linalool has multiple commercial applications, the majority of which are based on its pleasant scent (floral, with a touch of ...
. Thymol, an
antiseptic An antiseptic (from Greek ἀντί ''anti'', "against" and σηπτικός ''sēptikos'', "putrefactive") is an antimicrobial substance or compound that is applied to living tissue/skin to reduce the possibility of infection, sepsis, or putre ...
, is an active ingredient in various commercially produced
mouthwash Mouthwash, mouth rinse, oral rinse, or mouth bath is a liquid which is held in the mouth passively or swilled around the mouth by contraction of the perioral muscles and/or movement of the head, and may be gargling, gargled, where the head is ti ...
es such as
Listerine Listerine is an American brand of antiseptic mouthwash that is promoted with the slogan "Kills Microorganism, germs that cause bad breath", Named after Joseph Lister, who pioneered antiseptic surgery at the Glasgow Royal Infirmary in Scotland, L ...
. Before the advent of modern
antibiotics An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention o ...
, oil of thyme was used to medicate bandages.


Important species and cultivars

* '' Thymus citriodorus'' – various lemon thymes, orange thymes, lime thyme * '' Thymus herba-barona'' (caraway thyme) is used both as a culinary herb and a ground cover, and has a very strong
caraway Caraway, also known as meridian fennel and Persian cumin (''Carum carvi''), is a biennial plant in the family Apiaceae, native to western Asia, Europe, and North Africa. Etymology The etymology of "caraway" is unclear. Caraway has been ...
scent due to the chemical
carvone Carvone is a member of a family of chemicals called terpenoids. Carvone is found naturally in many essential oils, but is most abundant in the oils from seeds of caraway (''Carum carvi''), spearmint (''Mentha spicata''), and dill. Uses Both carvo ...
. * ''
Thymus praecox ''Thymus praecox'' is a species of thyme. A common name is mother of thyme, but "creeping thyme" and "wild thyme" may be used where ''Thymus serpyllum'', which also shares these names, is not found. It is native to central, southern, and western ...
'' (mother of thyme, wild thyme), is cultivated as an ornamental. * '' Thymus pseudolanuginosus'' (woolly thyme) is not a culinary herb, but is grown as a ground cover. * ''
Thymus serpyllum ''Thymus serpyllum'', known by the common names of Breckland thyme, Breckland wild thyme, wild thyme, creeping thyme, or elfin thyme, is a species of flowering plant in the mint family Lamiaceae, native to most of Europe and North Africa. It is ...
'' (wild thyme, creeping thyme) is an important
nectar source A nectar source is a flowering plant that produces nectar as part of its reproductive strategy. These plants create nectar, which attract pollinating insects and sometimes other animals such as birds. Nectar source plants are important for beekee ...
plant for
honeybee A honey bee (also spelled honeybee) is a eusocial flying insect within the genus ''Apis'' of the bee clade, all native to Afro-Eurasia. After bees spread naturally throughout Africa and Eurasia, humans became responsible for the current cosmo ...
s. All thyme species are nectar sources, but wild thyme covers large areas of droughty, rocky soils in southern Europe (both
Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders with ...
and Malta are especially famous for wild thyme honey) and North Africa, as well as in similar landscapes in the
Berkshire Berkshire ( ; in the 17th century sometimes spelt phonetically as Barkeshire; abbreviated Berks.) is a historic county in South East England. One of the home counties, Berkshire was recognised by Queen Elizabeth II as the Royal County of Berk ...
and
Catskill Mountains The Catskill Mountains, also known as the Catskills, are a physiographic province of the larger Appalachian Mountains, located in southeastern New York. As a cultural and geographic region, the Catskills are generally defined as those areas c ...
of the northeastern US. The lowest growing of the widely used thyme is good for walkways. It is also an important caterpillar food plant for large and common blue butterflies. * ''
Thymus vulgaris ''Thymus vulgaris'' (common thyme, German thyme, garden thyme or just thyme) is a species of flowering plant in the mint family Lamiaceae, native to southern Europe from the western Mediterranean to southern Italy. Growing to tall by wide, it ...
'' (common thyme, English thyme, summer thyme, winter thyme, French thyme, or garden thyme) is a commonly used
culinary 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 ...
. It also has medicinal uses. Common thyme is a
Mediterranean The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the e ...
perennial which is best suited to well-drained soils and full sun.


References


Further reading

* S. S. Tawfik, M. I. Abbady, Ahmed M. Zahran and A. M. K. Abouelalla. Therapeutic Efficacy Attained with Thyme Essential Oil Supplementation Throughout γ-irradiated Rats. Egypt. J. Rad. Sci. Applic., 19(1): 1-22 (2006).
Flora of China: ''Thymus''

Flora Europaea: ''Thymus''
* Rohde, E. S. (1920). ''A Garden of Herbs''. * Easter, M. (2009). ''International Thymus Register and Checklist''. {{Transient receptor potential channel modulators * Herbs Antifungals Antiseptics Medicinal plants Flora of the Mediterranean Basin Mediterranean cuisine Lamiaceae Melliferous flowers Subshrubs Albanian cuisine