Chili pepper

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Peppers, hot chili, red, raw
Nutritional value per 100 g (3.5 oz)
Energy166 kJ (40 kcal)
Carbohydrates8.8 g
- Sugars5.3 g
- Dietary fiber1.5 g
Fat0.4 g
Protein1.9 g
Water88 g
Vitamin A equiv.48 μg (6%)
- beta-carotene534 μg (5%)
Vitamin B60.51 mg (39%)
Vitamin C144 mg (173%)
Iron1 mg (8%)
Magnesium23 mg (6%)
Potassium322 mg (7%)
Capsaicin0.01g – 6 g
Percentages are roughly approximated
using US recommendations for adults.
Source: USDA Nutrient Database
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Small white variety of chili grown in Udupi district, India

The chili pepper (also chile pepper or chilli pepper, from Nahuatl chīlli [ˈt͡ʃiːlːi]) is the fruit[1] of plants from the genus Capsicum, members of the nightshade family, Solanaceae. The term in British English and in Australia, New Zealand, India,[2] Malaysia and other Asian countries is just chilli without "pepper".

The substances that give chili peppers their intensity when ingested or applied topically are capsaicin (8-methyl-N-vanillyl-6-nonenamide) and several related chemicals, collectively called capsaicinoids.

Chili peppers originated in the Americas.[3] After the Columbian Exchange, many cultivars of chili pepper spread across the world, used in both food and medicine. Chilies were brought to Asia by Portuguese navigators during the 16th century.

India is the world's largest producer, consumer and exporter of chili peppers.[4] Guntur in Andhra Pradesh produces 30% of all the chilies produced in India,[5] and the state of Andhra Pradesh as a whole contributes 75% of India's chili exports.[6]


Chili peppers have been a part of the human diet in the Americas since at least 7500 BC. There is archaeological evidence at sites located in southwestern Ecuador that chili peppers were domesticated more than 6000 years ago,[7][8] and were one of the first self-pollinating crops cultivated in Mexico, Central and parts of South America.[9]

Pottery that tested positive for Capsicum sp. residues excavated at Chiapa de Corzo in southern Mexico dated from Middle to Late Preclassic periods (400 BCE to 300 CE)

Christopher Columbus was one of the first Europeans to encounter them (in the Caribbean), and called them "peppers" because they, like black and white pepper of the Piper genus known in Europe, have a spicy hot taste unlike other foodstuffs. Upon their introduction into Europe, chilis were grown as botanical curiosities in the gardens of Spanish and Portuguese monasteries. But the monks experimented with the chili culinary potential and discovered that their pungency offered a substitute for black peppercorns, which at the time were so costly that they were used as legal currency in some countries.[10]

Chilies were cultivated around the globe after Columbus.[11][12] Diego Álvarez Chanca, a physician on Columbus' second voyage to the West Indies in 1493, brought the first chili peppers to Spain and first wrote about their medicinal effects in 1494.

The spread of chili peppers to Asia was most likely a natural consequence of its introduction to Portuguese traders (Lisbon was a common port of call for Spanish ships sailing to and from the Americas) who, aware of its trade value, would have likely promoted its commerce in the Asian spice trade routes then dominated by Portuguese and Arab traders.[13] Today chillies are an integral part of Indian cuisine.

There is a verifiable correlation between the chili pepper geographical dissemination and consumption in Asia and the presence of Portuguese traders, India and southeast Asia being obvious examples.

The chili pepper features heavily in the cuisine of the Goan region of India, which was the site of a Portuguese colony (e.g., vindaloo, an Indian interpretation of a Portuguese dish). Chili peppers journeyed from India,[14] through Central Asia and Turkey, to Hungary, where it became the national spice in the form of paprika.

An alternate, although not so plausible account (no obvious correlation between its dissemination in Asia and Spanish presence or trade routes), defended mostly by Spanish historians, was that from Mexico, at the time a Spanish colony, chili peppers spread into their other colony the Philippines and from there to India, China, Indonesia. To Japan, it was brought by the Portuguese missionaries in 1542, and then later, it was brought to Korea.

In 1995 archaeobotanist Hakon Hjelmqvist published an article in Svensk Botanisk Tidskrift claiming there was evidence for the presence of chili peppers in Europe in pre-Columbian times.[15] According to Hjelmqvist, archaeologists at a dig in St Botulf in Lund found a Capsicum frutescens in a layer from the 13th century. Hjelmqvist thought it came from Asia. Hjelmqvist also said that Capsicum was described by the Greek Theophrastus (370–286 BCE) in his Historia Plantarum, and in other sources. Around the first century CE, the Roman poet Martialis (Martial) mentioned "Piperve crudum" (raw pepper) in Liber XI, XVIII, allegedly describing them as long and containing seeds (a description which seems to fit chili peppers - but could also fit the long pepper, which was well known to ancient Romans).

Species and cultivars[edit]

Thai pepper, similar in variety to the African birdseye, exhibits considerable strength for its size

The five domesticated species of chili peppers are:

Immature chilis in the field

Though there are only a few commonly used species, there are many cultivars and methods of preparing chili peppers that have different names for culinary use. Green and red bell peppers, for example, are the same cultivar of C. annuum, immature peppers being green. In the same species are the jalapeño, the poblano (which when dried is referred to as ancho), New Mexico (which is also known as chile colorado), Anaheim, serrano, and other cultivars.

Peppers are commonly broken down into three groupings: bell peppers, sweet peppers, and hot peppers. Most popular pepper varieties are seen as falling into one of these categories or as a cross between them.


The habanero pepper is known for its unique combination of intense flavor, aroma and heat

The substances that give chili peppers their intensity when ingested or applied topically are capsaicin (8-methyl-N-vanillyl-6-nonenamide) and several related chemicals, collectively called capsaicinoids.[16][17] Capsaicin is also the primary component in pepper spray, a less-than-lethal weapon.

When consumed, capsaicinoids bind with pain receptors in the mouth and throat that are responsible for sensing heat. Once activated by the capsaicinoids, these receptors send a message to the brain that the person has consumed something hot. The brain responds to the burning sensation by raising the heart rate, increasing perspiration and release of endorphins. A 2008 study[18] reports that capsaicin alters how the body's cells use energy produced by hydrolysis of ATP. In the normal hydrolysis the SERCA protein uses this energy to move calcium ions into the sarcoplasmic reticulum. When capsaicin is present, it alters the conformation of the SERCA, and thus reduces the ion movement; as a result the ATP energy (which would have been used to pump the ions) is instead released as thermal energy.[19]

A display of hot peppers and a board explaining the Scoville scale at a Houston, Texas, grocery store

The "heat" of chili peppers was historically measured in Scoville heat units (SHU), which is a measure of the dilution of an amount of chili extract added to sugar syrup before its heat becomes detectable to a panel of tasters; the more it has to be diluted to be undetectable, the more powerful the variety and therefore the higher the rating.[20] The modern commonplace method for quantitative analysis of SHU rating uses high-performance liquid chromatography to directly measure the capsaicinoid content of a chili pepper variety. Pure capsaicin is a hydrophobic, colorless, odorless, and crystalline-to-waxy solid at room temperature, and measures 16,000,000 SHU.

Common peppers[edit]

A wide range of intensity is found in commonly used peppers:

Bell pepper0 SHU
New Mexico green chilis1,500 SHU
Jalapeño2,500-8,000 SHU
Habanero100,000–350,000 SHU[21]

Notably hot chili peppers[edit]

Some of the world's hottest chili peppers are:

Carolina Reaper2.2M SHU[22]
Trinidad Moruga Scorpion2.0M SHU[23]
Bhut Jolokia1.6M SHU[24]
Trinidad Scorpion Butch T1.463M SHU[25]
Naga Viper1.4M SHU[26]
Infinity chilli1.2M SHU[27]


Cubanelle peppers
The Black Pearl cultivar has round black fruit that ripens to a bright red
Chili peppers drying in Kathmandu, Nepal
Scotch bonnet chili peppers in a Caribbean market

Culinary uses[edit]

Chili pepper pods, which are berries, are used fresh or dried. Chilies are dried to preserve them for long periods of time, which may also be done by pickling.

Dried chilies are often ground into powders, although many Mexican dishes including variations on chiles rellenos use the entire chili. Dried whole chilis may be reconstituted before grinding to a paste. The chipotle is the smoked, dried, ripe jalapeño.

Many fresh chilies such as poblano have a tough outer skin that does not break down on cooking. Chilis are sometimes used whole or in large slices, by roasting, or other means of blistering or charring the skin, so as not to entirely cook the flesh beneath. When cooled, the skins will usually slip off easily.

The leaves of every species of Capsicum are edible. Though almost all other Solanaceous crops have toxins in their leaves, chile peppers do not. The leaves, which are mildly bitter and nowhere near as hot as the fruit, are cooked as greens in Filipino cuisine, where they are called dahon ng sili (literally "chili leaves"). They are used in the chicken soup, tinola.[28] In Korean cuisine, the leaves may be used in kimchi.[29] In Japanese cuisine, the leaves are cooked as greens, and also cooked in tsukudani style for preservation.

Chili is by far the most important fruit in Bhutan. Local markets are never without chili, always teemed with different colors and sizes, in fresh and dried form. Bhutanese call this crop ema (in Dzongkha) or solo (in Sharchop). Chili is a staple fruit in Bhutan; the ema datsi recipe is entirely made of chili mixed with local cheese. Chili is also an important ingredient in almost all curries and food recipes in the country.

In India, most households always keep a stack of fresh hot green chilis at hand, and use them to flavour most curries and dry dishes. It is typically lightly fried with oil in the initial stages of preparation of the dish. Some states in India, such as Rajasthan, make entire dishes only by using spices and chilies.

Chilies are present in many cuisines. Some notable dishes other than the ones mentioned elsewhere in this article include:

Fresh or dried chilies are often used to make hot sauce, a liquid condiment – usually bottled when commercially available – that adds spice to other dishes. Hot sauces are found in many cuisines including harissa from North Africa, chili oil from China (known as rāyu in Japan), and sriracha from Thailand.


Psychologist Paul Rozin suggests that eating chilis is an example of a "constrained risk" like riding a roller coaster, in which extreme sensations like pain and fear can be enjoyed because individuals know that these sensations are not actually harmful. This method lets people experience extreme feelings without any risk of bodily harm.[30]


Capsaicin is a safe and effective topical analgesic agent in the management of arthritis pain, herpes zoster-related pain, diabetic neuropathy, mastectomy pain, and headaches.[31]

Pepper spray[edit]

Capsaicin extracted from chilis is used in pepper spray as an irritant, a form of less-lethal weapon.

Crop defense[edit]

Conflicts between farmers and elephants have long been widespread in African and Asian countries, where pachyderms nightly destroy crops, raid grain houses, and sometimes kill people. Farmers have found the use of chilies effective in crop defense against elephants. Elephants don't like capsaicin, the chemical in chilies that makes them hot. Because the elephants have a large and sensitive olfactory and nasal system, the smell of the chili causes them discomfort and deters them from feeding on the crops. By planting a few rows of the pungent fruit around valuable crops, farmers create a buffer zone through which the elephants are reluctant to pass. Chilly-Dung Bombs are also used for this purpose. They are bricks made of mixing dung and chili, and are burned, creating a noxious smoke that keeps hungry elephants out of farmers fields. This can lessen dangerous physical confrontation between people and elephants.[32]

Food defense[edit]

As birds have a lessened sensitivity to the effects of chili it can be used to keep mammalian vermin from bird seed (see Evolutionary Advantages below).

Nutritional value[edit]

Peppers, hot chili, red, raw
Nutritional value per 100 g (3.5 oz)
Energy166 kJ (40 kcal)
Carbohydrates8.8 g
- Sugars5.3 g
- Dietary fiber1.5 g
Fat0.4 g
Protein1.9 g
Water88 g
Vitamin A equiv.48 μg (6%)
- beta-carotene534 μg (5%)
Vitamin B60.51 mg (39%)
Vitamin C144 mg (173%)
Iron1 mg (8%)
Magnesium23 mg (6%)
Potassium322 mg (7%)
Capsaicin0.01g – 6 g
Percentages are roughly approximated
using US recommendations for adults.
Source: USDA Nutrient Database

Red chilies contain large amounts of vitamin C and small amounts of carotene (provitamin A). Yellow and especially green chilies (which are essentially unripe fruit) contain a considerably lower amount of both substances. In addition, peppers are a good source of most B vitamins, and vitamin B6 in particular. They are very high in potassium, magnesium, and iron. Their very high vitamin C content can also substantially increase the uptake of non-heme iron from other ingredients in a meal, such as beans and grains.

Evolutionary advantages[edit]

Birds do not have the same sensitivity to capsaicin, because it targets a specific pain receptor in mammals. Chili peppers are eaten by birds living in the chili peppers' natural range. The seeds of the peppers are distributed by the birds that drop the seeds while eating the pods, and the seeds pass through the digestive tract unharmed. This relationship may have promoted the evolution of the protective capsaicin.[33] Products based on this substance have been sold to treat the seeds in bird feeders to deter squirrels and other mammalian vermin without also deterring birds. Capsaicin is also a defense mechanism against microbial fungi that invade through punctures made in the outer skin by various insects.[34]

Spelling and usage[edit]

Chili pepper in a traditional restaurant in Amman, Jordan

The three primary spellings are chili, chile and chilli, all of which are recognized by dictionaries.

The name of the plant bears no relation to Chile, the country, which is named after the Quechua chin ("cold"), tchili ("snow"), or chilli ("where the land ends").[42] Chile, Ecuador, Panama, Peru, Dominican Republic and Puerto Rico are some of the Spanish-speaking countries where chilis are known as ají, a word of Taíno origin. Though pepper originally referred to the genus Piper, not Capsicum, the latter usage is included in English dictionaries, including the Oxford English Dictionary (sense 2b of pepper) and Merriam-Webster.[43] The word pepper is also commonly used in the botanical and culinary fields in the names of different types of chili plants and their fruits.

See also[edit]


  1. ^ "HORT410. Peppers – Notes". Purdue University Department of Horticulture and Landscape Architecture. Retrieved 20 October 2009. "Common name: pepper. Latin name: Capsicum annuum L. ... Harvested organ: fruit. Fruit varies substantially in shape, pericarp thickness, color and pungency." 
  2. ^ "Indian chilli displacing jalapenos in global cuisine – The Economic Times". The Times Of India. 8 May 2011. 
  3. ^ "Chile Pepper History & Chile Pepper Glossary". Retrieved 23 Oct 2013. 
  4. ^ "Indian Chilli,Chilli India,Indian Chilli Exporters,Indian Red Dry Chilli". Retrieved 2013-08-28. 
  5. ^ "Govt. of India Ministry Of Agriculture". 
  6. ^ "indiaagrifarms Resources and Information. This website is for sale!". Retrieved 2013-08-28. 
  7. ^ Perry, L. et al. (2007). "Starch fossils and the domestication and dispersal of chili pepper (Capsicum spp. L.) in the Americas. Science 315: 986–988". 
  8. ^ "Chilies heated ancient cuisine". BBC News Online. 16 February 2007. Retrieved 16 February 2007. 
  9. ^ "Bosland, P.W. 1998. Capsicums: Innovative uses of an ancient crop. ''p. 479–487. In: J. Janick (ed.), Progress in new crops. ASHS Press, Arlington, VA.''". 22 August 1997. Retrieved 23 December 2010. 
  10. ^ "Chile Pepper Glossary". August 2008. Retrieved 31 August 2010. 
  11. ^ Heiser Jr., C.B. 1976. Pp. 265–268 in N.W. Simmonds (ed.). Evolution of Crop Plants. London: Longman.
  12. ^ Eshbaugh, W.H. 1993. Pp. 132–139 in J. Janick and J.E. Simon (eds.). New Crops. New York: Wiley.
  13. ^ Collingham, Elizabeth (February 2006). Curry. Oxford University Press. ISBN 0-09-943786-4. 
  14. ^ Robinson, Simon. "Chili Peppers: Global Warming". Retrieved 23 Oct 2013. 
  15. ^ Hjelmqvist, Hakon. "Cayennepeppar från Lunds medeltid". Svensk Botanisk Tidskrift, vol 89. pp. 193–. 
  16. ^ S Kosuge, Y Inagaki, H Okumura (1961). Studies on the pungent principles of red pepper. Part VIII. On the chemical constitutions of the pungent principles. Nippon Nogei Kagaku Kaishi (J. Agric. Chem. Soc.), 35, 923–927; (en) Chem. Abstr. 1964, 60, 9827g.
  17. ^ (ja) S Kosuge, Y Inagaki (1962) Studies on the pungent principles of red pepper. Part XI. Determination and contents of the two pungent
  18. ^ Yasser A. Mahmmoud (2008). "Capsaicin Stimulates Uncoupled ATP Hydrolysis by the Sarcoplasmic Reticulum Calcium Pump". Journal of Biological Chemistry 283 (31): 21418–21426. doi:10.1074/jbc.M803654200. PMID 18539598. 
  19. ^ Hot News about Chili Peppers, Chemical & Engineering News, 86, 33, 18 Aug 2008, p. 35
  20. ^ "History of the Scoville Scale | FAQS". Tabasco.Com. Retrieved 23 December 2010. 
  21. ^ "Chile Pepper Heat Scoville Scale". Retrieved 2013-04-14. 
  22. ^ "Smokin' Ed's Carolina Reaper® wins Guiness World Record–Smokin' Ed's Carolina Reaper® Officially the hottest chili pepper in the world!". PuckerButt Pepper Company. November 14, 2013. Retrieved November 20, 2013. 
  23. ^ "Trinidad Moruga Scorpion wins hottest pepper title" Retrieved 11 May 2013
  24. ^ Joshi, Monika (2012-03-11). "Chile Pepper Institute studies what's hot". Your life. USA Today. Archived from the original on 2012-03-12. 
  25. ^ "Aussies grow world's hottest chilli" Retrieved 12 April 2011
  26. ^ "Title of world's hottest chili pepper stolen - again". The Independent. 25 February 2011. Retrieved 27 February 2011. 
  27. ^ Neil Henderson (February 19, 2011). ""Record-breaking" chilli is hot news". BBC News. Retrieved February 20, 2011. 
  28. ^ [1][dead link]
  29. ^ [2][dead link]
  30. ^ Paul Rozin1 and Deborah Schiller, Paul; Schiller, Deborah (1980). "The nature and acquisition of a preference for chili pepper by humans". Motivation and Emotion 4 (1): 77–101. doi:10.1007/BF00995932. 
  31. ^ Cancer nursing: principles and practice – Google Books. 2005. ISBN 978-0-7637-4720-6. Retrieved 23 December 2010. 
  32. ^ Mott, Maryann. "Elephant Crop Raids Foiled by Chili Peppers, Africa Project Finds". National Geographic. Retrieved 23 Oct 2013. 
  33. ^ Tewksbury, J. J.; Nabhan, G. P. (2001). "Directed deterrence by capsaicin in chilies". Nature 412 (6845): 403–404. doi:10.1038/35086653. PMID 11473305. 
  34. ^ John Roach (11 August 2008). "Fungus Puts the Heat in Chili Peppers, Study Says". Discover Magazine. Retrieved 13 August 2008. 
  35. ^ "chili" from Merriam-Webster; other spellings are listed as variants, with "Chili" identified as "chiefly British"
  36. ^ The Canadian Oxford Dictionary lists chili as the main entry, and labels chile as a variant, and chilli as a British variant.
  37. ^ Heiser, Charles (August 1990). Seed To Civilization: The Story of Food. Cambridge: Harvard University Press. ISBN 0-674-79681-0. 
  38. ^ "A Brief History of Chilies : Kakawa Chocolate House, Mesoamerican Mayan Aztec Drinking Chocolate, Historic European and Colonial American Drinking Chocolate, Truffles and More". Retrieved 23 December 2010. 
  39. ^ "Definition for chilli – Oxford Dictionaries Online (World English)". Retrieved 21 April 2012. 
  40. ^ Our Bureau. "Business Line : Industry & Economy / Agri-biz : Fall in exports crushes chilli prices in Guntur". Retrieved 21 April 2012. 
  41. ^ "Chilli, Capsicum and Pepper are spicy plants grown for the pod. Green chilli is a culinary requirement in any Sri Lankan household". Retrieved 21 April 2012. 
  42. ^ "Chili or Pepper?". Retrieved 16 January 2013. 
  43. ^ "va=pepper – Definition from the Merriam-Webster Online Dictionary". 13 August 2010. Retrieved 23 December 2010. 

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