Peppermint

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For other uses, see Peppermint (disambiguation).

Peppermint
Pfefferminze natur peppermint.jpg
Peppermint (Mentha × piperita)
Scientific classification e
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Mentha
Species: M. × piperita
Binomial name
Mentha × piperita

Peppermint (Mentha × piperita, also known as Mentha balsamea Wild.)[1] is a hybrid mint, a cross between watermint and spearmint.[2] Indigenous to Europe and the Middle East,[3] the plant is now widely spread and cultivated in many regions of the world.[4] It is occasionally found in the wild with its parent species.[4][5]

Botany[edit]

Peppermint flowers
1887 illustration from Köhlers; Medicinal Plants

Peppermint was first described in 1753 by Carl Linnaeus from specimens that had been collected in England; he treated it as a species,[6] but it is now universally agreed to be a hybrid.[7] It is a herbaceous rhizomatous perennial plant that grows to be 30–90 cm (12–35 in) tall, with smooth stems, square in cross section. The rhizomes are wide-spreading, fleshy, and bear fibrous roots. The leaves can be 4–9 cm (1.6–3.5 in) long and 1.5–4 cm (0.59–1.57 in) broad. They are dark green with reddish veins, and they have an acute apex and coarsely toothed margins. The leaves and stems are usually slightly fuzzy. The flowers are purple, 6–8 mm (0.24–0.31 in) long, with a four-lobed corolla about 5 mm (0.20 in) diameter; they are produced in whorls (verticillasters) around the stem, forming thick, blunt spikes. Flowering season lasts from mid- to late summer. The chromosome number is variable, with 2n counts of 66, 72, 84, and 120 recorded.[8][9][10] Peppermint is a fast-growing plant; once it sprouts, it spreads very quickly.

Ecology[edit]

Peppermint typically occurs in moist habitats, including stream sides and drainage ditches. Being a hybrid, it is usually sterile, producing no seeds and reproducing only vegetatively, spreading by its runners. If placed, it can grow almost anywhere.[5][10]

Outside of its native range, areas where peppermint was formerly grown for oil often have an abundance of feral plants, and it is considered invasive in Australia, the Galápagos Islands, New Zealand,[11] and the United States[12] in the Great Lakes region, noted since 1843.[13]

Cultivation[edit]

Peppermint generally grows best in moist, shaded locations, and expands by underground rhizomes. Young shoots are taken from old stocks and dibbled into the ground about 1.5 feet apart. They grow quickly and cover the ground with runners if it is permanently moist. For the home gardener, it is often grown in containers to restrict rapid spreading. It grows best with a good supply of water, without being water-logged, and planted in areas with part-sun to shade.

The leaves and flowering tops are used; they are collected as soon as the flowers begin to open and can be dried. The wild form of the plant is less suitable for this purpose, with cultivated plants having been selected for more and better oil content. They may be allowed to lie and wilt a little before distillation, or they may be taken directly to the still.

Cultivars[edit]

A number of cultivars have been selected for garden use:

  • Mentha × piperita 'Candymint'. Stems reddish.[14]
  • Mentha × piperita 'Chocolate Mint'. Flowers open from bottom up; reminiscent of flavour in Andes Chocolate Mints, a popular confection.[15][16][17]
  • Mentha × piperita 'Citrata'. Includes a number of varieties including Eau De Cologne Mint,[18] Grapefruit Mint, Lemon Mint,[19] and Orange Mint. Leaves aromatic, hairless.
  • Mentha × piperita 'Crispa'. Leaves wrinkled.[20]
  • Mentha × piperita 'Lavender Mint'.[21]
  • Mentha × piperita 'Lime Mint'. Foliage lime-scented.[22][23]
  • Mentha × piperita 'Variegata'. Leaves mottled green and pale yellow.[24]
  • "Mentha suaveolens" 'Apple Mint'. Foliage is light green and hairy. Used as a ground cover and for cooking.[25]

Commercial cultivars may include

Production[edit]

In 2014, world production of peppermint was 92,296 tonnes, led by Morocco with 92% of the world total reported by FAOSTAT of the United Nations.[28] Argentina accounted for 8% of the world total.[28]

In the United States, Oregon and Washington produce most of the country's peppermint,[29] the leaves of which are processed for the essential oil to produce flavorings mainly for chewing gum and toothpaste.[30]

Chemical constituents[edit]

Peppermint has a high menthol content. The oil also contains menthone and carboxyl esters, particularly menthyl acetate.[31] Dried peppermint typically has 0.3–0.4% of volatile oil containing menthol (7–48%), menthone (20–46%), menthyl acetate (3–10%), menthofuran (1–17%) and 1,8-cineol (3–6%). Peppermint oil also contains small amounts of many additional compounds including limonene, pulegone, caryophyllene and pinene.[32]

Peppermint contains terpenoids and flavonoids such as eriocitrin, hesperidin, and kaempferol 7-O-rutinoside.[33]

Oil[edit]

Peppermint (Mentha × piperita) essential oil

Peppermint oil has a high concentration of natural pesticides, mainly pulegone (found mainly in Mentha arvensis var. piperascens cornmint, field mint, Japanese mint, and to a lesser extent (6,530 ppm) in Mentha × piperita subsp. nothosubsp. piperita[34]) and menthone.[35] It is known to repel some pest insects, including mosquitos, and has uses in organic gardening.[36][37][38]

The chemical composition of the essential oil from peppermint (Mentha x piperita L.) was analyzed by GC/FID and GC-MS. The main constituents were menthol (40.7%) and menthone (23.4%). Further components were (+/-)-menthyl acetate, 1,8-cineole, limonene, beta-pinene and beta-caryophyllene.[39]

Research and health effects[edit]

Peppermint oil is under preliminary research for its potential as a short-term treatment for irritable bowel syndrome,[40][41] and has supposed uses in traditional medicine for minor ailments.[42][43] Peppermint oil and leaves have a cooling effect when used topically for muscle pain, nerve pain, relief from itching, or as a fragrance.[43][44] High oral doses of peppermint oil (500 mg) can cause mucosal irritation and mimic heartburn.[43][44] As an aroma, peppermint may have memory- and alertness-enhancing properties.[43][45]

Culinary and other uses[edit]

Fresh or dried peppermint leaves are often used alone in peppermint tea or with other herbs in herbal teas (tisanes, infusions). Peppermint is used for flavouring ice cream, candy, fruit preserves, alcoholic beverages, chewing gum, toothpaste, and some shampoos, soaps and skin care products.[29][30]

Menthol activates cold-sensitive TRPM8 receptors in the skin and mucosal tissues, and is the primary source of the cooling sensation that follows the topical application of peppermint oil.[46]

  • Candy canes are one of the most common peppermint-flavored candies

  • Mentha × piperita hybrid known as “chocolate mint”

  • Freeze-dried leaves

Peppermint oil is also used in construction and plumbing to test for the tightness of pipes and disclose leaks by its odor.[47]

Safety[edit]

Medicinal uses of peppermint have not been approved as effective or safe by the US Food and Drug Administration.[48] With caution that the concentration of the peppermint constituent pulegone should not exceed 1% (140 mg), peppermint preparations are considered safe by the European Medicines Agency when used in topical formulations for adult subjects.[49][50] Undiluted peppermint essential oil is safe for oral intake when only a few drops are used.[43][49]

Although peppermint is commonly available as a herbal supplement, there are no established, consistent manufacturing standards for it, and some peppermint products may be contaminated with toxic metals or other substituted compounds.[48] Skin rashes, irritation, or an allergic reaction may result from applying peppermint oil to the skin,[48] and its use on the face or chest of young children may cause side effects if the oil menthol is inhaled.[43][49] A common side effect from oral intake of peppermint oil or capsules is heartburn.[48] Oral use of peppermint products may have adverse effects when used with iron supplements, cyclosporine, medicines for heart conditions or high blood pressure, or medicines to decrease stomach acid.[48]

Standardization[edit]

  • ISO 676:1995 - contains the information about the nomenclature of the variety and cultivars[51]
  • ISO 5563:1984 - a specification for its dried leaves of Mentha piperita Linnaeus[52]
  • Peppermint oil - ISO 856:2006[53]

See also[edit]

References[edit]

  1. ^ WHO Monographs on Selected Medicinal Plants: Volume 2 (PDF). Geneva: World Health Organization. 2002. pp. 188, 199. ISBN 92-4-154537-2. Retrieved October 29, 2010. 
  2. ^ The Complete Illustrated Book of Herbs, Alex Frampton, The Reader's Digest Association, 2009
  3. ^ "Peppermint". Botanical Online. Retrieved 19 March 2018. 
  4. ^ a b Euro+Med Plantbase Project: Mentha × piperita Archived 2012-03-09 at the Wayback Machine.
  5. ^ a b Flora of NW Europe: Mentha × piperita Archived September 19, 2009, at the Wayback Machine.
  6. ^ Linnaeus, C. (1753). Species Plantarum 2: 576–577.
  7. ^ Harley, R. M. (1975). Mentha L. In: Stace, C. A., ed. Hybridization and the flora of the British Isles page 387.
  8. ^ "Mentha x piperita - Peppermint - Flora of Northwest Europe". 2014. Retrieved 29 December 2014. 
  9. ^ Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan. ISBN 0-333-47494-5.[page needed]
  10. ^ a b Blamey, M. & Grey-Wilson, C. (1989). Flora of Britain and Northern Europe. ISBN 0-340-40170-2[page needed]
  11. ^ Pacific Island Ecosystems at Risk: Mentha x piperita
  12. ^ USDA Plants Profile: Mentha x piperita
  13. ^ "List of invasive species in the Great Lakes Great Lakes United / Union Saint-Laurent Grands Lacs". Archived from the original on 2009-04-29. Retrieved 2009-02-07. 
  14. ^ The Herbarist. Herb Society of America. 1997. p. 39. Retrieved 24 July 2013. 
  15. ^ "Mentha piperita cv. Chocolate Mint". Mountainvalleygrowers.com. Retrieved 2013-07-24. 
  16. ^ Dolf De Rovira (28 February 2008). Dictionary of Flavors. John Wiley & Sons. pp. 420–. ISBN 978-0-470-38484-8. Retrieved 24 July 2013. 
  17. ^ "Mentha x piperita 'Chocolate Mint' : peppermint". Hortiplex.gardenweb.com. 2007-09-12. Archived from the original on 2014-10-06. Retrieved 2013-07-24. 
  18. ^ "Mentha x piperita 'Citrata' : eau de cologne mint". Hortiplex.gardenweb.com. 2007-09-12. Archived from the original on 2014-10-06. Retrieved 2013-07-24. 
  19. ^ "Mentha x piperita var. citrata : lemon mint". Hortiplex.gardenweb.com. 2007-09-12. Archived from the original on 2014-07-28. Retrieved 2013-07-24. 
  20. ^ "Mentha x piperita 'Crispa' : eau de cologne mint". Hortiplex.gardenweb.com. 2007-09-12. Archived from the original on 2014-10-06. Retrieved 2013-07-24. 
  21. ^ "HortiPlex Plant Database: Info, Images and Links on Thousands of Plants". Hortiplex.gardenweb.com. Archived from the original on 2014-10-06. Retrieved 2013-07-24. 
  22. ^ Harrowsmith Country Life. Camden House Pub. 1990. p. 48. Retrieved 24 July 2013. 
  23. ^ "Mentha x piperita 'Lime Mint' : eau de cologne mint". Hortiplex.gardenweb.com. 2007-09-12. Archived from the original on 2014-10-06. Retrieved 2013-07-24. 
  24. ^ "Mentha x piperita 'Variegata' : variegated mint". Hortiplex.gardenweb.com. 2007-09-12. Archived from the original on 2014-10-06. Retrieved 2013-07-24. 
  25. ^ "Apple Mint". Onlyfoods.com. 2013-02-23. Retrieved 2017-07-29. 
  26. ^ a b c d e Stanev, S.; V.D. Zheljazkov. "Study on essential oil and free menthol accumulation in 19 cultivars, populations, and clones of peppermint (Mentha × piperita)". Retrieved 6 June 2009. 
  27. ^ a b c Jullien, Frédéric; Diemer, Florence; Colson, Monique; Faure, Olivier (1998). "An optimising protocol for protoplast regeneration of three peppermint cultivars ( Mentha x piperita)". Plant Cell, Tissue and Organ Culture. 54 (3): 153–9. doi:10.1023/A:1006185103897. 
  28. ^ a b "Peppermint production in 2014; Crops/Regions/World list/Production Quantity (pick lists)". UN Food and Agriculture Organization, Corporate Statistical Database (FAOSTAT). 2017. Retrieved 26 September 2017. 
  29. ^ a b "Peppermint". Oregon State University, Corvallis; Extension Service. 2017. Retrieved 26 September 2017. 
  30. ^ a b Pihl, Kristi (24 September 2012). "Washington is No. 1 mint oil producer in U.S." Tri-City Herald. Retrieved 26 September 2017. 
  31. ^ Thomson Healthcare (2007). PDR for Herbal Medicines (4th ed.). p. 640. ISBN 978-1-56363-678-3. 
  32. ^ Leung, A. Y. (1980). Encyclopedia of Common Natural Ingredients used in food, drugs and cosmetics. New York: John Wiley & Sons. p. 231. 
  33. ^ Dolzhenko, Yuliya; Bertea, Cinzia M.; Occhipinti, Andrea; Bossi, Simone; Maffei, Massimo E. (2010). "UV-B modulates the interplay between terpenoids and flavonoids in peppermint (Mentha × piperita L.)". Journal of Photochemistry and Photobiology B: Biology. 100 (2): 67–75. doi:10.1016/j.jphotobiol.2010.05.003. 
  34. ^ Duke's Data Base http://www.ars-grin.gov/cgi-bin/duke/highchem.pl[permanent dead link]
  35. ^ Robert Irving Krieger (2001). Handbook of Pesticide Toxicology: Principles. Academic Press. p. 823. ISBN 978-0-12-426260-7. Retrieved 11 October 2010. 
  36. ^ Kumar, Sarita; Wahab, Naim; Warikoo, Radhika (April 2011). "Bioefficacy of Mentha piperita essential oil against dengue fever mosquito Aedes aegypti L". Asian Pacific Journal of Tropical Biomedicine. 1: 85–8. doi:10.1016/S2221-1691(11)60001-4. PMC 3609176 Freely accessible. PMID 23569733. 
  37. ^ Garrett, Howard (2003). Dear Dirt Doctor: Questions Answered the Natural Way. University of Texas Press. p. 54. 
  38. ^ Singh, Bharat P. (2010). Industrial Crops and Uses. Centre for Agriculture and Biosciences International. p. 144. 
  39. ^ Schmidt, E.; Bail, S.; Buchbauer, G.; Stoilova, I.; Atanasova, T.; Stoyanova, A.; Krastanov, A.; Jirovetz, L. (2009). "Chemical composition, olfactory evaluation and antioxidant effects of essential oil from Mentha x piperita". Natural Product Communications. 4 (8): 1107–1112. 
  40. ^ Khanna R, MacDonald JK, Levesque BG (July 2014). "Peppermint oil for the treatment of irritable bowel syndrome: a systematic review and meta-analysis". Journal of Clinical Gastroenterology. 48 (6): 505–12. doi:10.1097/MCG.0b013e3182a88357. PMID 24100754. 
  41. ^ Ruepert L, Quartero AO, de Wit NJ, van der Heijden GJ, Rubin G, Muris JW (August 2011). "Bulking agents, antispasmodics and antidepressants for the treatment of irritable bowel syndrome". Cochrane Database of Systematic Reviews. 8: CD003460. doi:10.1002/14651858.CD003460.pub3. PMID 21833945. 
  42. ^ "Peppermint". Mosby's Handbook of Herbs & Natural Supplements. Credo Reference: Elsevier Health Sciences. 2010. 
  43. ^ a b c d e f "Peppermint oil". National Center for Complementary and Integrative Health, US National Institutes of Health, Bethesda, MD. 2016. Retrieved 13 July 2015. 
  44. ^ a b Keifer, D.; Ulbricht, C.; Abrams, T.; Basch, E.; Giese, N.; Giles, M.; DeFranco Kirkwood, C.; Miranda, M.; Woods, J. (2007). "Peppermint (Mentha xpiperita): An evidence-based systematic review by the Natural Standard Research Collaboration" (PDF). Journal of Herbal Pharmacotherapy. 7 (2): 91–143. doi:10.1080/j157v07n02_07. 
  45. ^ Moss, Mark; Hewitt, Steven; Moss, Lucy; Wesnes, Kieth (2008). "Modulation of cognitive performance and mood by aromas of peppermint and ylang-ylang". International Journal of Neuroscience. 118 (1): 59–77. doi:10.1080/00207450601042094. PMID 18041606. 
  46. ^ R. Eccles (1994). "Menthol and Related Cooling Compounds". J. Pharm. Pharmacol. 46 (8): 618–630. doi:10.1111/j.2042-7158.1994.tb03871.x. PMID 7529306. 
  47. ^ M. G. Kains (1912). American Agriculturist, ed. Culinary Herbs: Their Cultivation Harvesting Curing and Uses. Orange Judd Company. Archived from the original (English) on 2007. 
  48. ^ a b c d e "Peppermint". Drugs.com. 2017. Retrieved 11 November 2017. 
  49. ^ a b c "Community Herbal Monograph on Mentha x piperita L., aetheroleum" (PDF). Committee on Herbal Medicinal Products, European Medicines Agency. 31 October 2007. Retrieved 11 November 2017. 
  50. ^ Nair, B (2001). "Final report on the safety assessment of Mentha piperita (Peppermint) Oil, Mentha piperita (Peppermint) Leaf Extract, Mentha piperita (Peppermint) Leaf, and Mentha piperita (Peppermint) Leaf Water". International Journal of Toxicology. 20 Suppl 3: 61–73. doi:10.1080/10915810152630747. PMID 11766133. 
  51. ^ International Organization for Standardization. "ISO 676:1995 Spices and condiments -- Botanical nomenclature". Retrieved 8 June 2009. 
  52. ^ International Organization for Standardization. "ISO 5563:1984 Dried peppermint (Mentha piperita Linnaeus) -- Specification". Retrieved 7 June 2009. 
  53. ^ International Organization for Standardization. "ISO 856:2008 Oil of peppermint (Mentha x piperita L.)". Retrieved 7 June 2009. 

External links[edit]

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