Peanut
Encyclopedia
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
(Fabaceae
Fabaceae
The Fabaceae or Leguminosae, commonly known as the legume, pea, or bean family, is a large and economically important family of flowering plants. The group is the third largest land plant family, behind only the Orchidaceae and Asteraceae, with 730 genera and over 19,400 species...
), so it is not a nut. The peanut was probably first cultivated in the valleys of Peru
Peru
Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....
. It is an annual
Annual plant
An annual plant is a plant that usually germinates, flowers, and dies in a year or season. True annuals will only live longer than a year if they are prevented from setting seed...
herbaceous
Herbaceous
A herbaceous plant is a plant that has leaves and stems that die down at the end of the growing season to the soil level. They have no persistent woody stem above ground...
plant growing 30 to 50 cm (0.984251968503937 to 1.6 ft) tall. The leaves
Leaf
A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants....
are opposite, pinnate
Pinnate
Pinnate is a term used to describe feather-like or multi-divided features arising from both sides of a common axis in plant or animal structures, and comes from the Latin word pinna meaning "feather", "wing", or "fin". A similar term is pectinate, which refers to a comb-like arrangement of parts...
with four leaflets (two opposite pairs; no terminal leaflet), each leaflet 1 to 7 cm (⅜ to 2¾ in) long and 1 to 3 cm (⅜ to 1 inch) broad.
The flower
Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants . The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs...
s are a typical peaflower in shape, 2 to 4 cm (0.78740157480315 to 1.6 in) (¾ to 1½ in) across, yellow with reddish veining. Hypogaea means "under the earth", after pollination
Pollination
Pollination is the process by which pollen is transferred in plants, thereby enabling fertilisation and sexual reproduction. Pollen grains transport the male gametes to where the female gamete are contained within the carpel; in gymnosperms the pollen is directly applied to the ovule itself...
, the flower stalk elongates causing it to bend until the ovary touches the ground. Continued stalk growth then pushes the ovary underground where the mature fruit
Fruit
In broad terms, a fruit is a structure of a plant that contains its seeds.The term has different meanings dependent on context. In non-technical usage, such as food preparation, fruit normally means the fleshy seed-associated structures of certain plants that are sweet and edible in the raw state,...
develops into a legume pod, the peanut – a classical example of geocarpy
Geocarpy
Geocarpy is the production by plants of diaspores within the soil. This may occur with subterranean flowers , or from aerial flowers, which penetrate the soil after flowering . It has evolved as an effective means of ensuring a suitable environment for the plant's offspring...
. Pods are 3 to 7 cm (1.2 to 2.8 in) long, containing 1 to 4 seed
Seed
A seed is a small embryonic plant enclosed in a covering called the seed coat, usually with some stored food. It is the product of the ripened ovule of gymnosperm and angiosperm plants which occurs after fertilization and some growth within the mother plant...
s.
Peanuts are known by many other local names such as earthnuts, ground nuts, goober peas, monkey nuts, pygmy nuts and pig nuts.
History
The domesticated peanut is an amphidiploid or allotetraploid, meaning that it has two sets of chromosomes from two different species, thought to be A. duranensis and A. ipaensis. These likely combined in the wild to form the tetraploid species A. monticolaArachis monticola
Arachis monticola is a close relative of the domesticated peanut . Besides the peanut, it is the only other tetraploid species in the genus Arachis. It is thought to be the immediate wild ancestor of peanut, although it may be a weedy form, descended from cultivated peanuts.-References:...
, which gave rise to the domesticated peanut. This domestication might have taken place in Paraguay or Bolivia, where the wildest strains grow today. Many pre-Columbian
Pre-Columbian
The pre-Columbian era incorporates all period subdivisions in the history and prehistory of the Americas before the appearance of significant European influences on the American continents, spanning the time of the original settlement in the Upper Paleolithic period to European colonization during...
cultures, such as the Moche
Moche
'The Moche civilization flourished in northern Peru from about 100 AD to 800 AD, during the Regional Development Epoch. While this issue is the subject of some debate, many scholars contend that the Moche were not politically organized as a monolithic empire or state...
, depicted peanuts in their art.
Archeologists have dated the oldest specimens to about 7,600 years, found in Peru
Peru
Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....
. Cultivation spread as far as Mesoamerica where the Spanish conquistadors found the tlalcacahuatl (Nahuatl
Nahuatl
Nahuatl is thought to mean "a good, clear sound" This language name has several spellings, among them náhuatl , Naoatl, Nauatl, Nahuatl, Nawatl. In a back formation from the name of the language, the ethnic group of Nahuatl speakers are called Nahua...
= 'peanut,' whence Mexican Spanish
Mexican Spanish
Mexican Spanish is a version of the Spanish language, as spoken in Mexico and in various places of Canada and the United States of America, where there are communities of Mexican origin....
, cacahuate and French, cacahuète) being offered for sale in the marketplace of Tenochtitlan (Mexico City). The plant was later spread worldwide by European traders.
Cultivation
The orange-veined, yellow-petaled, pea-like flower of the Arachis hypogaea is borne in axillary clusters above ground. Following self-pollinationSelf-pollination
Self-pollination is a form of pollination that can occur when a flower has both stamen and a carpel in which the cultivar or species is self fertile and the stamens and the sticky stigma of the carpel contact each other in order to accomplish pollination...
, the flowers fade and wither. The stalk at the base of the ovary, called the pedicel, elongates rapidly, and turns downward to bury the fruits several inches in the ground, where they complete their development. The entire plant, including most of the roots, is removed from the soil during harvesting. The fruits have wrinkled shells that are constricted between pairs of the one to four (usually two) seeds per pod.
Peanuts grow best in light, sandy loam
Loam
Loam is soil composed of sand, silt, and clay in relatively even concentration . Loam soils generally contain more nutrients and humus than sandy soils, have better infiltration and drainage than silty soils, and are easier to till than clay soils...
soil. They require five months of warm weather, and an annual rainfall of 500 to 1000 mm (19.7 to 39.4 in) or the equivalent in irrigation
Irrigation
Irrigation may be defined as the science of artificial application of water to the land or soil. It is used to assist in the growing of agricultural crops, maintenance of landscapes, and revegetation of disturbed soils in dry areas and during periods of inadequate rainfall...
water.
The pods ripen 120 to 150 days after the seeds are planted. If the crop is harvested too early, the pods will be unripe. If they are harvested late, the pods will snap off at the stalk, and will remain in the soil.
Peanuts are particularly susceptible to contamination during growth and storage. Poor storage of peanuts can lead to an infection by the mold
Mold
Molds are fungi that grow in the form of multicellular filaments called hyphae. Molds are not considered to be microbes but microscopic fungi that grow as single cells called yeasts...
fungus
Fungus
A fungus is a member of a large group of eukaryotic organisms that includes microorganisms such as yeasts and molds , as well as the more familiar mushrooms. These organisms are classified as a kingdom, Fungi, which is separate from plants, animals, and bacteria...
Aspergillus flavus
Aspergillus flavus
Aspergillus flavus is a fungus. It is a common mold in the environment, and can cause storage problems in stored grains. It can also be a human pathogen, associated with aspergillosis of the lungs and sometimes causing corneal, otomycotic, and nasoorbital infections. Many strains produce...
, releasing the toxic
Toxicity
Toxicity is the degree to which a substance can damage a living or non-living organisms. Toxicity can refer to the effect on a whole organism, such as an animal, bacterium, or plant, as well as the effect on a substructure of the organism, such as a cell or an organ , such as the liver...
and highly carcinogen
Carcinogen
A carcinogen is any substance, radionuclide, or radiation that is an agent directly involved in causing cancer. This may be due to the ability to damage the genome or to the disruption of cellular metabolic processes...
ic substance aflatoxin
Aflatoxin
Aflatoxins are naturally occurring mycotoxins that are produced by many species of Aspergillus, a fungus, the most notable ones being Aspergillus flavus and Aspergillus parasiticus. Aflatoxins are toxic and among the most carcinogenic substances known...
. The aflatoxin-producing molds exist throughout the peanut growing areas and may produce aflatoxin in peanuts when conditions are favorable to fungal growth.
Harvesting occurs in two stages. In mechanized systems, a machine is used to cut off the main root of the peanut plant by cutting through the soil just below the level of the peanut pods. The machine lifts the "bush" from the ground and shakes it, then inverts the bush, leaving the plant upside down on the ground to keep the peanuts out of the soil. This allows the peanuts to dry slowly to a bit less than a third of their original moisture level over a period of three to four days. Traditionally, peanuts are pulled and inverted by hand.
After the peanuts have dried sufficiently, they are thresh
Threshing
Threshing is the process of loosening the edible part of cereal grain from the scaly, inedible chaff that surrounds it. It is the step in grain preparation after harvesting and before winnowing, which separates the loosened chaff from the grain...
ed, removing the peanut pods from the rest of the bush.
Cultivation in China
Agriculture in China
Agriculture is an important economic sector of China, employing over 300 million farmers. China ranks first in worldwide farm output, primarily producing rice, wheat, potatoes, sorghum, peanuts, tea, millet, barley, cotton, oilseed, pork, and fish.-History:...
by Portuguese traders in the 17th century and another variety by American missionaries in the 19th century.
They became popular and are featured in many Chinese dishes, often being boiled. During the 1980s, peanut production began to increase so greatly that as of 2006, China was the world's largest peanut producer. A major factor in this increase was the household-responsibility system, which moved financial control from the government to the farmers.
Cultivation in the United States
In fall 2011, American peanut farmers experienced one of the worst peanut harvests in decades, increasing peanut butter prices across the country.Production
China leads in production of peanuts, having a share of about 41.5% of overall world production, followed by India (18.2%) and the United States of America (6.8%).
| Country | Production (Million Metric Tons) |
|---|---|
| 14.30 | |
| 6.25 | |
| 2.34 | |
| 1.55 | |
| 1.25 | |
| 1.00 | |
| 0.85 | |
| 0.71 | |
| 0.58 | |
| 0.50 | |
| World | 34.43 |
Source: USDA Foreign Agricultural Service: Table 13 Peanut Area, Yield, and Production |
|
Cultivars
Thousands of peanut cultivarCultivar
A cultivar'Cultivar has two meanings as explained under Formal definition. When used in reference to a taxon, the word does not apply to an individual plant but to all those plants sharing the unique characteristics that define the cultivar. is a plant or group of plants selected for desirable...
s are grown, with four major cultivar groups being the most popular: Spanish, Runner, Virginia, and Valencia. There are also Tennessee red and white groups. Certain cultivar groups are preferred for particular uses because of differences in flavor, oil content, size, shape, and disease resistance. For many uses the different cultivars are interchangeable. Most peanuts marketed in the shell are of the Virginia type, along with some Valencias selected for large size and the attractive appearance of the shell. Spanish peanuts are used mostly for peanut candy, salted nuts, and peanut butter
Peanut butter
Peanut butter is a food paste made primarily from ground dry roasted peanuts, popular in North America, Netherlands, United Kingdom, and parts of Asia, particularly the Philippines and Indonesia. It is mainly used as a sandwich spread, sometimes in combination as in the peanut butter and jelly...
. Most Runners are used to make peanut butter.
Each year new cultivars of peanuts are bred and introduced. Introducing a new cultivar may mean change in the planting rate, adjusting the planter, harvester, dryer, cleaner, sheller, and method of marketing.
Spanish group
The small Spanish types are grown in South Africa, and in the southwestern and southeastern U.S. Prior to 1940, 90% of the peanuts grown in Georgia, USAGeorgia (U.S. state)
Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...
were Spanish types, but the trend since then has been larger-seeded, higher-yielding, more disease-resistant cultivars. Spanish peanuts have a higher oil content than other types of peanuts and in the U.S. are now primarily grown in New Mexico
New Mexico
New Mexico is a state located in the southwest and western regions of the United States. New Mexico is also usually considered one of the Mountain States. With a population density of 16 per square mile, New Mexico is the sixth-most sparsely inhabited U.S...
, Oklahoma
Oklahoma
Oklahoma is a state located in the South Central region of the United States of America. With an estimated 3,751,351 residents as of the 2010 census and a land area of 68,667 square miles , Oklahoma is the 28th most populous and 20th-largest state...
, and Texas
Texas
Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...
.
Cultivars of the Spanish group include "Dixie Spanish", "Improved Spanish 2B", "GFA Spanish", "Argentine", "Spantex", "Spanette", "Shaffers Spanish", "Natal Common (Spanish)", "White Kernel Varieties", "Starr", "Comet", "Florispan", "Spanhoma", "Spancross", "OLin", "Tamspan 90", "AT 9899-14", "Spanco" "Wilco I", "GG 2", "GG 4" , "TMV 2", and "Tamnut 06".
Runner group
Since 1940, the southeastern U.S. region has seen a shift to production of Runner group peanuts. This shift is due to good flavor, better roasting characteristics and higher yields when compared to Spanish types leading to food manufacturers' preference for the use in peanut butter and salted nuts. Georgia's production is now almost 100% Runner type.Cultivars of Runners include "Southeastern Runner 56-15", "Dixie Runner", "Early Runner", "Virginia Bunch 67", "Bradford Runner", "Egyptian Giant" (also known as "Virginia Bunch" and "Giant"), "Rhodesian Spanish Bunch" (Valencia and Virginia Bunch), "North Carolina Runner 56-15", "Florunner", "Virugard", "Georgia Green", "Tamrun 96", "Flavor Runner 458", "Tamrun OL01", "Tamrun OL02" "AT-120", "Andru-93", "Southern Runner", "AT1-1", "Georgia Brown", "GK-7",and "AT-108".
Virginia group
The large seeded Virginia Group peanuts are grown in the following US states: Virginia, North Carolina, Tennessee, Texas, New Mexico, Oklahoma, and parts of Georgia. They are increasing in popularity due to demand for large peanuts for processing, particularly for salting, confections, and roasting in the shells.Virginia Group peanuts are either bunch or running in growth habit. The bunch type is upright to spreading. It attains a height of 45 to 55 cm (17.7 to 21.7 in), and a spread of 70 to 80 cm (27.6 to 31.5 in), with 80 to 90 cm (31.5 to 35.4 in) rows that seldom cover the ground. The pods are borne within 5 to 10 cm of the base of the plant.
Cultivars of Virginia type peanuts include NC 7, NC 9, NC 10C, NC-V 11, VA 93B, NC 12C, VA-C 92R, Gregory, VA 98R, Perry, Wilson, Hull, AT VC-2 and Shulamit.
Valencia group
Valencia Group peanuts are coarse, and they have heavy reddish stems and large foliage. In the U.S., large commercial production is primarily in the south plains of west TexasTexas
Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...
and eastern New Mexico
New Mexico
New Mexico is a state located in the southwest and western regions of the United States. New Mexico is also usually considered one of the Mountain States. With a population density of 16 per square mile, New Mexico is the sixth-most sparsely inhabited U.S...
near and south of Portales, New Mexico, but they are grown on a small scale elsewhere in the South as the best flavored and preferred type for boiled peanuts
Boiled peanuts
Boiled peanuts are popular in some places where peanuts are common. Fully mature peanuts do not make good quality boiled peanuts; rather raw or "green" ones are used. "Raw" denotes peanuts in a semi-mature state, having achieved full size, but not being fully dried, as would be needed for roasting...
. They are comparatively tall, having a height of 125 cm (49.2 in) and a spread of 75 cm (29.5 in). Peanut pods are borne on pegs arising from the main stem and the side branches. Most of the pods are clustered around the base of the plant, and only a few are found several inches away. Valencia types are three to five seeded and smooth, with no constriction of the shell between the seeds. Seeds are oval and tightly crowded into the pods. Typical seed weight is 0.4 to 0.5 g. This type is used heavily for sale roasted and salted in-shell peanuts and peanut butter
Peanut butter
Peanut butter is a food paste made primarily from ground dry roasted peanuts, popular in North America, Netherlands, United Kingdom, and parts of Asia, particularly the Philippines and Indonesia. It is mainly used as a sandwich spread, sometimes in combination as in the peanut butter and jelly...
. Varieties include Valencia A and Valencia C.
Tennessee Red and Tennessee White groups
These are alike, except for the color of the seed. Sometimes known also as Texas Red or White, the plants are similar to Valencia types, except that the stems are green to greenish brown, and the pods are rough, irregular, and have a smaller proportion of kernels.Varied applications
Peanuts have many uses. They can be eaten raw, used in recipes, made into solvents and oilPeanut oil
Peanut oil is an organic material oil derived from peanuts, noted to have the aroma and taste of its parent legume....
s, used in make-up, medicines, textile materials, peanut butter, as well as many other uses. Popular confections made from peanuts include salted peanuts, peanut butter
Peanut butter
Peanut butter is a food paste made primarily from ground dry roasted peanuts, popular in North America, Netherlands, United Kingdom, and parts of Asia, particularly the Philippines and Indonesia. It is mainly used as a sandwich spread, sometimes in combination as in the peanut butter and jelly...
(sandwiches
Peanut butter and jelly sandwich
The peanut butter and jelly sandwich or PB&J is a sandwich, popular in North America, that includes a layer of peanut butter and either jam or jelly on bread, commonly between two slices, but sometimes eaten open-faced....
, peanut candy bar
Candy bar
A chocolate bar is a confection in bar form comprising some or all of the following components: cocoa solids, cocoa butter, sugar, milk. The relative presence or absence of these components form the subclasses of dark chocolate, milk chocolate, and white chocolate. In addition to these main...
s, peanut butter cookie
Cookie
In the United States and Canada, a cookie is a small, flat, baked treat, usually containing fat, flour, eggs and sugar. In most English-speaking countries outside North America, the most common word for this is biscuit; in many regions both terms are used, while in others the two words have...
s, and cups
Peanut butter cup
A peanut butter cup is a molded chocolate candy with a peanut butter filling inside. Peanut butter cups are one of the most popular kinds of candy bar in America. They can be made at home, but like most candies, they are commonly mass-produced...
), peanut brittle, and shelled nuts (plain/roasted). Salted peanuts are usually roasted in oil and packed in retail-size plastic bags or hermetically sealed cans. Dry roasted salted peanuts are also marketed in significant quantities. Peanuts are often a major ingredient in mixed nuts because of their inexpensiveness compared to Brazil nuts, cashews, walnuts, and so on. Although peanut butter has been a tradition on camping trips and the like because of its high protein content and the fact that it resists spoiling for long periods of time, the primary use of peanut butter is in the home, but large quantities are also used in the commercial manufacture of sandwiches, candy, and bakery products. Boiled peanuts
Boiled peanuts
Boiled peanuts are popular in some places where peanuts are common. Fully mature peanuts do not make good quality boiled peanuts; rather raw or "green" ones are used. "Raw" denotes peanuts in a semi-mature state, having achieved full size, but not being fully dried, as would be needed for roasting...
are a preparation of raw, unshelled green peanuts boiled in brine
Brine
Brine is water, saturated or nearly saturated with salt .Brine is used to preserve vegetables, fruit, fish, and meat, in a process known as brining . Brine is also commonly used to age Halloumi and Feta cheeses, or for pickling foodstuffs, as a means of preserving them...
and eaten as a snack in the United States. More recently, fried peanut recipes have emerged - allowing both shell and nut to be eaten. Peanuts are also used in a wide variety of other areas, such as cosmetics
Cosmetics
Cosmetics are substances used to enhance the appearance or odor of the human body. Cosmetics include skin-care creams, lotions, powders, perfumes, lipsticks, fingernail and toe nail polish, eye and facial makeup, towelettes, permanent waves, colored contact lenses, hair colors, hair sprays and...
, nitroglycerin, plastic
Plastic
A plastic material is any of a wide range of synthetic or semi-synthetic organic solids used in the manufacture of industrial products. Plastics are typically polymers of high molecular mass, and may contain other substances to improve performance and/or reduce production costs...
s, dye
Dye
A dye is a colored substance that has an affinity to the substrate to which it is being applied. The dye is generally applied in an aqueous solution, and requires a mordant to improve the fastness of the dye on the fiber....
s and paint
Paint
Paint is any liquid, liquefiable, or mastic composition which after application to a substrate in a thin layer is converted to an opaque solid film. One may also consider the digital mimicry thereof...
s.
Arctic and Antarctic expeditions
While peanuts are nutritional as an everyday food, during expeditions on foot into the wilderness, especially regions of sub-zero temperatures like the South and North Poles, having peanuts has been the deciding factor between life and death. After learning from the mistakes of other adventurers, especially the tragically ill-prepared Discovery and Terra Nova expeditions to the South Pole lead by Captain Robert Falcon ScottRobert Falcon Scott
Captain Robert Falcon Scott, CVO was a Royal Navy officer and explorer who led two expeditions to the Antarctic regions: the Discovery Expedition, 1901–04, and the ill-fated Terra Nova Expedition, 1910–13...
and Captain Oates from 1901 to 1912 (during which the majority of the expedition died), where starvation and lack of the proper amount of calories needed to keep from freezing were a constant danger, adventurers had to decide on a type of food that was dense, portable, high in protein and calories and could be eaten at any time without preparation. Subsequent expeditions thus settled on peanut butter as the ideal foodstuff, freeing explorers from the transport and kindling of cooking fuel (a near-impossibility in the frigid polar winds), and high enough in protein and calories to fuel the party and keep them from freezing to death in the harsh weather and freezing nighttime temperatures. Peanut butter was further favored for speed and ease of use because it could be eaten while walking if necessary.
Peanut oil
Peanut oilPeanut oil
Peanut oil is an organic material oil derived from peanuts, noted to have the aroma and taste of its parent legume....
is often used in cooking, because it has a mild flavor and a relatively high smoke point
Smoke point
The smoke point generally refers to the temperature at which a cooking fat or oil begins to break down to glycerol and free fatty acids, and produce bluish smoke. The glycerol is then further broken down to acrolein which is a component of the smoke. It is the presence of the acrolein that causes...
. Due to its high monounsaturated content, it is considered more healthy than saturated oils, and is resistant to rancidity. There are several types of peanut oil including: aromatic roasted peanut oil, refined peanut oil, extra virgin or cold pressed peanut oil and peanut extract. In the United States, refined peanut oil is exempt from allergen labeling laws.
Peanut flour
Peanut flourPeanut flour
Peanut flour is made from crushed, fully or partly defatted peanuts. Peanut flour, depending on how much fat was removed, is packed with protein, providing up to 31.32g per cup...
is lower in fat than peanut butter, and is popular with chefs because its high protein content makes it suitable as a flavor enhancer. Peanut flour is used as a gluten-free solution.
Boiled peanuts
Boiled peanutsBoiled peanuts
Boiled peanuts are popular in some places where peanuts are common. Fully mature peanuts do not make good quality boiled peanuts; rather raw or "green" ones are used. "Raw" denotes peanuts in a semi-mature state, having achieved full size, but not being fully dried, as would be needed for roasting...
are a popular snack in the southern United States, as well as in India, China and Ghana.
South America
Peanuts are also used in many sauces for South American meat dishes, especially rabbitRabbit
Rabbits are small mammals in the family Leporidae of the order Lagomorpha, found in several parts of the world...
. Peanuts are common ingredients in Peruvian cuisine reflecting the marriage of native ingredients and ingredients introduced by Europeans. In one example peanuts are roasted along with hot peppers (both native to South America) and blended with roasted onions, garlic, and oil (all of European origin) to make a smooth sauce poured over boiled potatoes. This dish is especially famous in the city of Arequipa and is known as "papas con ocopa". Another example combines a similar mixture with sautéed seafood or boiled and shredded chicken in the form of a fricassee. These dishes are generally known as ajis (the word for hot peppers), such as aji de pollo and aji de mariscos. Not all cooks use peanuts in seafood "ajis".
During Colonial times the Spanish in Peru learned to use ingredients like peanuts in substitution for nuts which were unavailable in Peru. It is well documented that Spanish cuisine
Spanish cuisine
Spanish cuisine consists of a variety of dishes, which stem from differences in geography, culture and climate. It is heavily influenced by seafood available from the waters that surround the country, and reflects the country's deep maritime roots...
makes extensive use of almonds, pine nuts, and other nuts, in ground or paste form, combined with rice, meats and vegetables, to create dishes like rice pilaf. However, almonds, pine nuts, chestnuts, walnuts, etc. were too expensive or unobtainable in Peru.
Southwest Asia
Crunchy coated peanuts, called kabukim in Hebrew, are a popular snack in IsraelIsrael
The State of Israel is a parliamentary republic located in the Middle East, along the eastern shore of the Mediterranean Sea...
. Kabukim are commonly sold by weight at corner stores where fresh nuts and seeds are sold, though they are also available packaged. The coating typically consists of flour, salt, starch, lecithin, and sometimes sesame seeds. An additional variety of crunchy coated peanuts popular in Israel is "American peanuts." The coating of this variety is thinner but harder to crack. The origin of the name is obscure.
Another popular Israeli peanut snack is Bamba. Similar in shape to Cheez Doodles
Cheez Doodles
Cheez Doodles are a cheese-flavored cheese puff produced by Wise Foods, Inc. which are similar to Frito-Lay's Cheetos. They debuted several years after Frito-Lay's snack in the 1950s. Originally developed and manufactured by King Kone Corp. of the Bronx , it became the prevalent cheese puff snack...
, Bamba puffs are made of corn and flavored with peanut butter.
Southeast Asia
Peanuts are also widely used in Southeast AsiaSoutheast Asia
Southeast Asia, South-East Asia, South East Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies on the intersection of geological plates, with heavy seismic...
n cuisine, particularly Indonesia
Cuisine of Indonesia
Indonesian cuisine is diverse, in part because Indonesia is composed of approximately 6,000 populated islands. Many regional cuisines exist, often based upon cultural and foreign influences. Indonesian cuisine varies greatly by region and has many different influences...
, where they are typically made into a spicy sauce
Peanut sauce
Peanut sauce, satay sauce, bumbu kacang, or sambal kacang is a sauce widely used in the cuisines of Indonesia, Malaysia, Thailand, Vietnam, China and Africa. It is also used, to a lesser extent, in European and Middle Eastern cuisine.-Ingredients:The main ingredient is ground roasted peanuts, for...
. Peanuts originally came to Indonesia from the Philippines
Philippines
The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...
, where the legume came from Mexico in times of Spanish colonization.
Common Indonesian peanut-based dishes include gado-gado
Gado-gado
Gado-gado , also called Lotek for its cooked version - differed from lotek atah or karedok for its fresh and raw version of the vegetable covered with peanut sauce and pecel is an Indonesian dish comprising a vegetable salad served with a peanut sauce dressing...
, pecel
Pecel
Pecel is an Indonesian sauce based on chillies, peanuts, tamarind and coconut sugar. It is commonly served over boiled vegetables. It is similar to the sauce used in Gado-gado.-External links:*...
, karedok
Karedok
Karedok is a raw vegetable salad in peanut sauce from West Java, Indonesia. It is one of the Sundanese signature dish. It is made from cucumbers, bean sprouts, cabbage, legumes, Thai basil, and small green eggplant, covered in peanut sauce dressing...
and ketoprak
Ketoprak
Ketoprak may refer to:* Ketoprak, a traditional theater genre of Java, similar to wayang wong* Ketoprak , a salty West Javanese version of Gado-gado with tahu, bihun, cucumber and sprouting....
, all vegetable salads mixed with peanut sauce, and the peanut-based sauce for satay
Satay
Satay , or sate, is a dish of marinated, skewered and grilled meat, served with a sauce. Satay may consist of diced or sliced chicken, goat, mutton, beef, pork, fish, other meats, or tofu; the more authentic version uses skewers from the midrib of the coconut palm frond, although bamboo skewers are...
.
In Indian sub-continent, peanuts are known as either a light snack by themselves, usually roasted and salted (sometimes with the addition of chilli powder), and often sold roasted in pod on roads, or boiled with salt. They are also made into little dessert or sweet snack pieces by processing with refined sugar and jaggery
Jaggery
Jaggery is a traditional unrefined non-centrifugal whole cane sugar consumed in Asia, Africa, Latin America, and the Caribbean. It is a concentrated product of cane juice without separation of the molasses and crystals, and can vary from golden brown to dark brown in color...
. Indian cuisine uses roasted, crushed peanuts to give a crunchy body to salads; they are added whole (without pods) to leafy vegetable stews for the same reason. Another use of peanut oil as cooking oil. Most Indians use mustard, sunflower, and peanut oil for cooking. Peanuts are not native to India. It is believed that peanuts came to India from Philippines. It may be noted, in this connection, that the name of this nut in northern parts of Tamil Nadu is 'மணிலாக் கொட்டை'- slang மல்லாக் கொட்டை- (Manila-k-kottai) means nut from Manila, the Capital city of Philippines.
West Africa
Peanuts grow well in southern MaliMali
Mali , officially the Republic of Mali , is a landlocked country in Western Africa. Mali borders Algeria on the north, Niger on the east, Burkina Faso and the Côte d'Ivoire on the south, Guinea on the south-west, and Senegal and Mauritania on the west. Its size is just over 1,240,000 km² with...
and adjacent regions of the Ivory Coast, Burkina Faso
Burkina Faso
Burkina Faso – also known by its short-form name Burkina – is a landlocked country in west Africa. It is surrounded by six countries: Mali to the north, Niger to the east, Benin to the southeast, Togo and Ghana to the south, and Côte d'Ivoire to the southwest.Its size is with an estimated...
, Ghana
Ghana
Ghana , officially the Republic of Ghana, is a country located in West Africa. It is bordered by Côte d'Ivoire to the west, Burkina Faso to the north, Togo to the east, and the Gulf of Guinea to the south...
, Nigeria
Nigeria
Nigeria , officially the Federal Republic of Nigeria, is a federal constitutional republic comprising 36 states and its Federal Capital Territory, Abuja. The country is located in West Africa and shares land borders with the Republic of Benin in the west, Chad and Cameroon in the east, and Niger in...
and Senegal
Senegal
Senegal , officially the Republic of Senegal , is a country in western Africa. It owes its name to the Sénégal River that borders it to the east and north...
. Peanut sauce, prepared with onions, garlic, peanut butter/paste, and vegetables like carrots, cabbage/cauliflower, can be vegetarian (the peanuts supplying ample protein) or prepared with meat, usually chicken.
Peanuts are used in the Mali
Mali
Mali , officially the Republic of Mali , is a landlocked country in Western Africa. Mali borders Algeria on the north, Niger on the east, Burkina Faso and the Côte d'Ivoire on the south, Guinea on the south-west, and Senegal and Mauritania on the west. Its size is just over 1,240,000 km² with...
meat stew maafe
Maafe
Maafe , or Groundnut Stew, is a stew common to much of West Africa. It originates from the Mandinka and Bambara people of Mali...
. In Ghana
Ghana
Ghana , officially the Republic of Ghana, is a country located in West Africa. It is bordered by Côte d'Ivoire to the west, Burkina Faso to the north, Togo to the east, and the Gulf of Guinea to the south...
, peanut butter is used for peanut butter soup "nkate nkwan". Crushed peanuts may also be used for peanut candies "nkate cake" and kuli-kuli
Kuli-Kuli
Kuli-kuli is a Hausa food that is primarily made from peanuts. It is a popular snack in Ghana and Nigeria. It is often eaten alone or with a mixture of garri, sugar and water popularly called "garri soakings". It is also eaten with kooko,fula, kamu; and is sometimes ground and put into salad.To...
as well as other local foods such as oto. Peanut butter is also an ingredient in Nigeria's "African Salad".
Peanut powder is an important ingredient in the spicy coating for kebabs
Kebab
Kebab is a wide variety of meat dishes originating in Middle East and later on adopted by the Middle East, and Asia Minor, and now found worldwide. In English, kebab with no qualification generally refers more specifically to shish kebab served on the skewer...
in Nigeria
Nigeria
Nigeria , officially the Federal Republic of Nigeria, is a federal constitutional republic comprising 36 states and its Federal Capital Territory, Abuja. The country is located in West Africa and shares land borders with the Republic of Benin in the west, Chad and Cameroon in the east, and Niger in...
and Ghana
Ghana
Ghana , officially the Republic of Ghana, is a country located in West Africa. It is bordered by Côte d'Ivoire to the west, Burkina Faso to the north, Togo to the east, and the Gulf of Guinea to the south...
.
East Africa
Peanuts are a common ingredient of several types of relishes (dishes which accompany nshimaNshima
Nshima or nsima or Bidia is a cornmeal product and a staple food in Zambia, Malawi and the Kasai Oriental and Kasai Occidental provinces of the Democratic Republic of Congo. It is made from ground maize flour known locally as mealie-meal...
) eaten by the tribes in Malawi
Malawi
The Republic of Malawi is a landlocked country in southeast Africa that was formerly known as Nyasaland. It is bordered by Zambia to the northwest, Tanzania to the northeast, and Mozambique on the east, south and west. The country is separated from Tanzania and Mozambique by Lake Malawi. Its size...
and in the eastern part of Zambia
Zambia
Zambia , officially the Republic of Zambia, is a landlocked country in Southern Africa. The neighbouring countries are the Democratic Republic of the Congo to the north, Tanzania to the north-east, Malawi to the east, Mozambique, Zimbabwe, Botswana and Namibia to the south, and Angola to the west....
, and these dishes are now common throughout both countries. Thick peanut butter sauces are also made in Uganda
Uganda
Uganda , officially the Republic of Uganda, is a landlocked country in East Africa. Uganda is also known as the "Pearl of Africa". It is bordered on the east by Kenya, on the north by South Sudan, on the west by the Democratic Republic of the Congo, on the southwest by Rwanda, and on the south by...
to go with rice and other starchy foods.
North America
In the U.S., peanuts are used in candies, cakes, cookies, and other sweets. They are also enjoyed roasted and salted. Peanut butterPeanut butter
Peanut butter is a food paste made primarily from ground dry roasted peanuts, popular in North America, Netherlands, United Kingdom, and parts of Asia, particularly the Philippines and Indonesia. It is mainly used as a sandwich spread, sometimes in combination as in the peanut butter and jelly...
is one of the most popular peanut-based foods in the U.S., and for four hundred years, recipes for peanut soup have been present in the South, Virginia in particular.
In some southern portions of the U.S., peanuts are boiled for several hours until soft and moist. Peanuts are also deep fried
Deep-fried peanuts
Deep-fried peanuts are a snack food created by deep frying peanuts in an oil. The resulting product is a snack food that can be eaten in its entirety, both shell and nut...
, shell and all.
Malnutrition
Peanuts are used to help fight malnutritionMalnutrition
Malnutrition is the condition that results from taking an unbalanced diet in which certain nutrients are lacking, in excess , or in the wrong proportions....
. Plumpy Nut, MANA Nutrition, and Medika Mamba are high protein, high energy and high nutrient peanut-based pastes that were developed to be used as a therapeutic food to aid in famine relief
Famine relief
Famine relief is an organized effort to reduce starvation in a region in which there is famine. A famine is a phenomenon in which a large proportion of the population of a region or country are so undernourished that death by starvation becomes increasingly common...
. Organizations like the World Health Organization
World Health Organization
The World Health Organization is a specialized agency of the United Nations that acts as a coordinating authority on international public health. Established on 7 April 1948, with headquarters in Geneva, Switzerland, the agency inherited the mandate and resources of its predecessor, the Health...
, UNICEF, Project Peanut Butter and Doctors Without Borders
Médecins Sans Frontières
' , or Doctors Without Borders, is a secular humanitarian-aid non-governmental organization best known for its projects in war-torn regions and developing countries facing endemic diseases. Its headquarters are in Geneva, Switzerland...
have used these products to help save malnourished children in developing countries.
Other uses
Peanuts can be used like other legumes and grains to make a lactose-free milk-like beverage, peanut milkPeanut milk
Peanut milk is a non-dairy beverage created using peanuts and water. Recipe variations include salt, sweeteners, and grains. It does not contain any lactose and is therefore suitable for people with lactose intolerance...
. Peanut plant tops are used for hay
Hay
Hay is grass, legumes or other herbaceous plants that have been cut, dried, and stored for use as animal fodder, particularly for grazing livestock such as cattle, horses, goats, and sheep. Hay is also fed to pets such as rabbits and guinea pigs...
.
Low grade or culled peanuts not suitable for the edible market are used in the production of peanut oil. The protein cake (oilcake meal) residue from oil processing is used as an animal feed and as a soil fertilizer. Low grade peanuts are also widely sold as a garden bird
Bird
Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...
feed.
Peanuts have a variety of industrial end uses. Paint, varnish, lubricating oil, leather dressings, furniture polish, insecticides, and nitroglycerin are made from peanut oil. Soap is made from saponified
Saponification
Saponification is a process that produces soap, usually from fats and lye. In technical terms, saponification involves base hydrolysis of triglycerides, which are esters of fatty acids, to form the sodium salt of a carboxylate. In addition to soap, such traditional saponification processes...
oil, and many cosmetics contain peanut oil and its derivatives. The protein portion of the oil is used in the manufacture of some textile fibers. Peanut shells are used in the manufacture of plastic, wallboard, abrasives, fuel, cellulose (used in rayon
Rayon
Rayon is a manufactured regenerated cellulose fiber. Because it is produced from naturally occurring polymers, it is neither a truly synthetic fiber nor a natural fiber; it is a semi-synthetic or artificial fiber. Rayon is known by the names viscose rayon and art silk in the textile industry...
and paper) and mucilage
Mucilage
Mucilage is a thick, gluey substance produced by most plants and some microorganisms. It is a polar glycoprotein and an exopolysaccharide.It occurs in various parts of nearly all classes of plant, usually in relatively small percentages, and is frequently associated with other substances, such as...
(glue). Rudolf Diesel
Rudolf Diesel
Rudolf Christian Karl Diesel was a German inventor and mechanical engineer, famous for the invention of the diesel engine.-Early life:Diesel was born in Paris, France in 1858 the second of three children of Theodor and Elise Diesel. His parents were Bavarian immigrants living in Paris. Theodor...
ran some of the first engines that bear his name on peanut oil and it is still seen as a potentially useful fuel.
Nutritional value
Peanuts are rich in nutrients, providing over 30 essential nutrients and phytonutrients. Peanuts are a good source of niacinNiacin
"Niacin" redirects here. For the neo-fusion band, see Niacin .Niacin is an organic compound with the formula and, depending on the definition used, one of the forty to eighty essential human nutrients.Niacin is one of five vitamins associated with a pandemic deficiency disease: niacin deficiency...
, folate, fiber
Fiber
Fiber is a class of materials that are continuous filaments or are in discrete elongated pieces, similar to lengths of thread.They are very important in the biology of both plants and animals, for holding tissues together....
, magnesium
Magnesium
Magnesium is a chemical element with the symbol Mg, atomic number 12, and common oxidation number +2. It is an alkaline earth metal and the eighth most abundant element in the Earth's crust and ninth in the known universe as a whole...
, vitamin E
Vitamin E
Vitamin E is used to refer to a group of fat-soluble compounds that include both tocopherols and tocotrienols. There are many different forms of vitamin E, of which γ-tocopherol is the most common in the North American diet. γ-Tocopherol can be found in corn oil, soybean oil, margarine and dressings...
, manganese
Manganese
Manganese is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is found as a free element in nature , and in many minerals...
and phosphorus
Phosphorus
Phosphorus is the chemical element that has the symbol P and atomic number 15. A multivalent nonmetal of the nitrogen group, phosphorus as a mineral is almost always present in its maximally oxidized state, as inorganic phosphate rocks...
. They also are naturally free of trans-fats and sodium, and contain about 25% protein (a higher proportion than in any true nut).
Niacin
Peanuts are a good source of niacinNiacin
"Niacin" redirects here. For the neo-fusion band, see Niacin .Niacin is an organic compound with the formula and, depending on the definition used, one of the forty to eighty essential human nutrients.Niacin is one of five vitamins associated with a pandemic deficiency disease: niacin deficiency...
, and thus contribute to brain health and blood flow.
Antioxidants
Recent research on peanuts and nuts in general has found antioxidants and other chemicals that may provide health benefits. New research shows peanuts rival the antioxidant content of many fruits. Roasted peanuts rival the antioxidant content of blackberries and strawberries, and are far richer in antioxidants than carrots or beets. Research conducted by a team of University of Florida scientists, published in the journal Food Chemistry, shows that peanuts contain high concentrations of antioxidant polyphenolsPolyphenol antioxidant
A polyphenol antioxidant is a type of antioxidant containing a polyphenolic substructure. Numbering over 4,000 distinct species, many of these compounds have antioxidant activity in vitro but are unlikely to have antioxidant roles in vivo...
, primarily a compound called p-coumaric acid, and that roasting can increase peanuts' p-coumaric acid levels, boosting their overall antioxidant content by as much as 22%.
Resveratrol
Peanuts are a significant source of resveratrolResveratrol
Resveratrol is a stilbenoid, a type of natural phenol, and a phytoalexin produced naturally by several plants when under attack by pathogens such as bacteria or fungi....
, a chemical associated with but not proven to cause a reduction in risk of cardiovascular disease
Cardiovascular disease
Heart disease or cardiovascular disease are the class of diseases that involve the heart or blood vessels . While the term technically refers to any disease that affects the cardiovascular system , it is usually used to refer to those related to atherosclerosis...
and cancer
Cancer
Cancer , known medically as a malignant neoplasm, is a large group of different diseases, all involving unregulated cell growth. In cancer, cells divide and grow uncontrollably, forming malignant tumors, and invade nearby parts of the body. The cancer may also spread to more distant parts of the...
.
The average amount of resveratrol in one ounce of commonly eaten peanuts (15 whole peanut kernels) is 73 μg.
Coenzyme Q10
Peanuts are a source of coenzyme Q10, as are oily fishOily fish
Oily fish have oil in their tissues and in the belly cavity around the gut. Their fillets contain up to 30 percent oil, although this figure varies both within and between species...
, beef
Beef
Beef is the culinary name for meat from bovines, especially domestic cattle. Beef can be harvested from cows, bulls, heifers or steers. It is one of the principal meats used in the cuisine of the Middle East , Australia, Argentina, Brazil, Europe and the United States, and is also important in...
, soybean
Soybean
The soybean or soya bean is a species of legume native to East Asia, widely grown for its edible bean which has numerous uses...
s and spinach
Spinach
Spinach is an edible flowering plant in the family of Amaranthaceae. It is native to central and southwestern Asia. It is an annual plant , which grows to a height of up to 30 cm. Spinach may survive over winter in temperate regions...
.
Allergies
Some people (1-2% of the US population) have mild to severe allergic reactions
Allergy
An Allergy is a hypersensitivity disorder of the immune system. Allergic reactions occur when a person's immune system reacts to normally harmless substances in the environment. A substance that causes a reaction is called an allergen. These reactions are acquired, predictable, and rapid...
to peanut exposure; symptoms can range from watery eyes to anaphylactic shock
Anaphylaxis
Anaphylaxis is defined as "a serious allergic reaction that is rapid in onset and may cause death". It typically results in a number of symptoms including throat swelling, an itchy rash, and low blood pressure...
, which can be fatal if untreated. For these individuals, eating a small amount of peanuts or just breathing the dust from peanuts can cause a reaction. An allergic reaction can also be triggered by eating foods that have been processed with machines which previously processed peanuts, making the avoidance of such food difficult. Some foods processed in facilities which also handle peanuts may carry warnings on their labels indicating such.
A hypothesis of the development of peanut allergy has to do with the way peanuts are processed in North America versus other countries, such as Pakistan and China, where peanuts are widely eaten. According to a 2003 study, roasting peanuts, as more commonly done in North America, causes the major peanut allergen Ara h2 to become a stronger inhibitor of the digestive enzyme trypsin
Trypsin
Trypsin is a serine protease found in the digestive system of many vertebrates, where it hydrolyses proteins. Trypsin is produced in the pancreas as the inactive proenzyme trypsinogen. Trypsin cleaves peptide chains mainly at the carboxyl side of the amino acids lysine or arginine, except when...
, making it more resistant to digestion. Additionally, this allergen has also been shown to protect Ara h1, another major peanut allergen, from digestion —- a characteristic further enhanced by roasting.
Another hypothesis, called the hygiene hypothesis
Hygiene hypothesis
In medicine, the Hygiene Hypothesis states that a lack of early childhood exposure to infectious agents, symbiotic microorganisms , and parasites increases susceptibility to allergic diseases by suppressing natural development of the immune system...
, states that a lack of early childhood exposure to infectious agents like germs and parasites could be causing the increase of food allergies.
Recent (2008) studies comparing age of peanut introduction in Great Britain with introduction in Israel appear to show that delaying exposure to peanuts can dramatically increase the risk of developing peanut allergies.
Results from some animal studies (and limited evidence from human subjects) suggest that the dose of peanuts is an important mediator of peanut sensitisation and tolerance; low doses tend to lead to sensitisation and higher doses tend to lead to tolerance.
Peanut allergy has been associated with the use of skin preparations containing peanut oil among children, but the evidence is not regarded as conclusive. Peanut allergies have also been associated with family history and intake of soy products.
Though the allergy can last a lifetime, another 2003 study indicates that 23.3% of children will outgrow a peanut allergy.
Some school district
School district
School districts are a form of special-purpose district which serves to operate the local public primary and secondary schools.-United States:...
s in the U.S.A have banned peanuts. There are experimental techniques which appear to have desensitized some allergic individuals. The most popular technique, oral immunotherapy, works to create desensitization in those allergic by feeding them small amounts of peanuts until their body becomes desensitized. Some progress is possibly being made in the UK, where researchers at Cambridge are studying the effectiveness of the desensitization technique.
Research indicates that refined peanut oil will not cause allergic reactions in most people with peanut allergies. However, crude (unrefined) peanut oils are strongly flavoured, and have been shown to contain protein, which may cause allergic reactions. In a randomized, double-blind
Double-blind
A blind or blinded experiment is a scientific experiment where some of the people involved are prevented from knowing certain information that might lead to conscious or subconscious bias on their part, invalidating the results....
crossover study
Crossover study
A crossover study is a longitudinal study in which subjects receive a sequence of different treatments . While crossover studies can be observational studies, many important crossover studies are controlled experiments, which are discussed in this article...
, 60 people with proven peanut allergy were challenged with both crude peanut oil and refined peanut oil. The authors conclude, “Crude peanut oil caused allergic reactions in 10% of allergic subjects studied and should continue to be avoided.” They also state, “Refined peanut oil does not seem to pose a risk to most people with peanut allergy.” However, they point out that refined peanut oil can still pose a risk to peanut-allergic individuals if oil that has previously been used to cook foods containing peanuts is reused.
Contamination with aflatoxin
Peanuts may be contaminated with the moldMold
Molds are fungi that grow in the form of multicellular filaments called hyphae. Molds are not considered to be microbes but microscopic fungi that grow as single cells called yeasts...
Aspergillus flavus
Aspergillus flavus
Aspergillus flavus is a fungus. It is a common mold in the environment, and can cause storage problems in stored grains. It can also be a human pathogen, associated with aspergillosis of the lungs and sometimes causing corneal, otomycotic, and nasoorbital infections. Many strains produce...
which produces a carcinogenic substance called aflatoxin. Lower quality specimens, particularly where mold
Mold
Molds are fungi that grow in the form of multicellular filaments called hyphae. Molds are not considered to be microbes but microscopic fungi that grow as single cells called yeasts...
is evident, are more likely to be contaminated. USDA tests every truckload of raw peanuts for aflatoxin; any containing aflatoxin levels of more than 20 parts per billion are destroyed. The peanut industry has manufacturing steps in place to ensure all peanuts are inspected for aflatoxin. Peanuts are also processed at a high temperature to ensure any microorganisms are killed.
Cardiovascular disease
A 1974 study suggested that peanut oil caused clogging of the arteries. Robert Wissler of the University of Chicago reported that diets high in peanut oil, when combined with cholesterol intake, clogged the arteries of Rhesus monkeys more than butterfat. However, subsequent work has cast serious doubt on those findings. In the Rhesus study, monkeys were being fed 20 times higher than normal dietary quantities of cholesterol in addition to peanut oil. When a similar study was performed without abnormal doses of cholesterol, no such effect was seen. In fact, peanut oil has been found to lower LDL (bad) cholesterol without reducing beneficial HDL cholesterol.U.S. Department of Agriculture (USDA) program
George Washington Carver
George Washington Carver , was an American scientist, botanist, educator, and inventor. The exact day and year of his birth are unknown; he is believed to have been born into slavery in Missouri in January 1864....
is often credited with inventing 300 different uses for peanuts (which, contrary to popular belief, did not include peanut butter
Peanut butter
Peanut butter is a food paste made primarily from ground dry roasted peanuts, popular in North America, Netherlands, United Kingdom, and parts of Asia, particularly the Philippines and Indonesia. It is mainly used as a sandwich spread, sometimes in combination as in the peanut butter and jelly...
but did include salted peanuts). Carver was one of many USDA researchers who encouraged cotton
Cotton
Cotton is a soft, fluffy staple fiber that grows in a boll, or protective capsule, around the seeds of cotton plants of the genus Gossypium. The fiber is almost pure cellulose. The botanical purpose of cotton fiber is to aid in seed dispersal....
farmers in the South to grow peanuts instead of, or in addition to, cotton, because cotton had depleted so much nitrogen from the soil, and one of the peanut's properties as a legume is to put nitrogen back into the soil (a process known as nitrogen fixation
Nitrogen fixation
Nitrogen fixation is the natural process, either biological or abiotic, by which nitrogen in the atmosphere is converted into ammonia . This process is essential for life because fixed nitrogen is required to biosynthesize the basic building blocks of life, e.g., nucleotides for DNA and RNA and...
). Rising demand for peanuts in the early 20th century was due to a shortage of plant oils during World War I and the growing popularity of peanut butter, roasted peanuts and peanut candies. Peanut products originating around the early 20th century include many brands still sold today such as Cracker Jack
Cracker Jack
Cracker Jack is a U.S. brand of snack consisting of strong molasses flavored candy-coated popcorn and peanuts, well known for being packaged with a prize of nominal value inside. Some food historians consider it the first junk food...
(1893), Planters
Planters
Planters is an American snack food company, a division of Kraft Foods, best known for its processed nuts and for the Mr. Peanut icon that symbolizes them. Mr. Peanut was created by grade schooler Antonio Gentile for a 1916 contest to design the company's brand icon...
peanuts (1906), Oh Henry!
Oh Henry!
Oh Henry! is a chocolate bar containing peanuts, caramel, and fudge coated in chocolate. It was first introduced in 1920, by the Williamson Candy Company of Chicago, Illinois. According to legend, Oh Henry! was originally named after a boy who frequented the Williamson company, flirting with the...
candy bar (1920), Baby Ruth
Baby Ruth
Baby Ruth is an American candy bar made of peanuts, caramel and chocolate-flavored nougat covered in chocolate.In 1921, the Curtiss Candy Company refashioned its Kandy Kake into the Baby Ruth. The bar was a staple of the Chicago-based company for some seven decades. Curtiss was purchased by Nabisco...
candy bar (1920), Butterfinger
Butterfinger
Butterfinger is a candy bar made by Nestlé.The bar consists of a flaky, orange-colored center—somewhat similar texture to crisp caramel, with a taste similar to peanut butter—that is coated in compound chocolate.- History :...
candy bar (1923), Mr. Goodbar
Mr. Goodbar
Mr. Goodbar is a chocolate-flavored candy bar containing peanuts, whose packaging can be easily identified by its distinctive yellow background and red text. It is manufactured by The Hershey Company and was introduced in 1925...
candy bar (1925), Reese's Peanut Butter Cup
Reese's Peanut Butter Cup
Reese's Peanut Butter Cups are a brand of candy filled with peanut butter and a chocolate cover, marketed by The Hershey Company. They were created in 1928 by H. B. Reese, a former dairy farmer and shipping foreman for Milton S. Hershey. Reese was inspired by Hershey, so he left the dairy farm to...
(1925), and Peter Pan (peanut butter)
Peter Pan (peanut butter)
Peter Pan is a brand of peanut butter produced by ConAgra Foods and named after the J.M. Barrie character. The product was introduced by Swift & Company in 1920 under the name "E. K. Pond". The product was renamed in 1928...
(1928).
Peanuts were designated by the U.S. Congress to be one of America's basic crops. To protect domestic industry by keeping prices artificially high, the United States Department of Agriculture
United States Department of Agriculture
The United States Department of Agriculture is the United States federal executive department responsible for developing and executing U.S. federal government policy on farming, agriculture, and food...
(USDA) aids peanut farmers through commodity programs. In the 2008 Farm Bill, the marketing quota for peanuts was eliminated and the Price Support Program was switched to a Direct and Counter-Cyclical Payment Program. Direct and counter-cyclical payments provide benefits to producers with eligible historical production of peanuts whenever the effective price is less than the targeted price.
Trade
Peanut oil
Peanut oil is an organic material oil derived from peanuts, noted to have the aroma and taste of its parent legume....
. Exports of peanuts from India and China are equivalent to less than 4% of world trade. The major producers/exporters of peanuts are the United States, Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...
, Sudan
Sudan
Sudan , officially the Republic of the Sudan , is a country in North Africa, sometimes considered part of the Middle East politically. It is bordered by Egypt to the north, the Red Sea to the northeast, Eritrea and Ethiopia to the east, South Sudan to the south, the Central African Republic to the...
, Senegal
Senegal
Senegal , officially the Republic of Senegal , is a country in western Africa. It owes its name to the Sénégal River that borders it to the east and north...
, and Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...
. These five countries account for 71% of total world exports. In recent years, the United States has been the leading exporter of peanuts.
The major peanut importers are the European Union
European Union
The European Union is an economic and political union of 27 independent member states which are located primarily in Europe. The EU traces its origins from the European Coal and Steel Community and the European Economic Community , formed by six countries in 1958...
(EU), Canada, and Japan. These three areas account for 78% of the world's imports. Most of Canada's peanut butter is processed from Chinese peanuts. Two thirds of U.S. imports are roasted, unshelled peanuts. The major suppliers are Taiwan
Taiwan
Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...
, Malaysia, Hong Kong, Mainland China
Mainland China
Mainland China, the Chinese mainland or simply the mainland, is a geopolitical term that refers to the area under the jurisdiction of the People's Republic of China . According to the Taipei-based Mainland Affairs Council, the term excludes the PRC Special Administrative Regions of Hong Kong and...
, and Canada. The principal suppliers of shelled peanut imports are Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...
and Canada. Imports of peanut butter from Argentina are in the form of a paste and must be further processed. Other minor suppliers of peanut butter include Malawi
Malawi
The Republic of Malawi is a landlocked country in southeast Africa that was formerly known as Nyasaland. It is bordered by Zambia to the northwest, Tanzania to the northeast, and Mozambique on the east, south and west. The country is separated from Tanzania and Mozambique by Lake Malawi. Its size...
, China, India, and Singapore
Singapore
Singapore , officially the Republic of Singapore, is a Southeast Asian city-state off the southern tip of the Malay Peninsula, north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor to its north and from Indonesia's Riau Islands by the...
.
The European Union is the largest consuming region in the world that does not produce peanuts. All of its consumption is supplied by imports. Consumption of peanuts in the EU is primarily as food, mostly as roasted-in-shell peanuts and as shelled peanuts used in confectionery and bakery products.
The average annual U.S. imports of peanuts are less than 0.5% of U.S. consumption.
Georgia is the leading peanut producing state in the U.S., followed by Texas and Alabama, respectively. About half of all peanuts produced in the United States are grown within a 100 mi (160.9 km) radius of Dothan, Alabama
Dothan, Alabama
Dothan is a city located in the southeastern corner of the US state of Alabama, situated approximately west of the Georgia state line and north of Florida. It is the seat of Houston County, with portions extending into nearby Dale County and Henry County...
. Dothan is home to the National Peanut Festival established in 1938 and held each fall to honor peanut growers and celebrate the harvest.
Ninety percent of India's production is processed into peanut oil. Only a nominal amount of hand-picked select-grade peanuts are exported. India prohibits the importation of all oil seeds, including peanuts.
See also
- BBCH-scale (peanut)BBCH-scale (peanut)In biology, the BBCH-scale for peanut describes the phenological development of peanuts using the BBCH-scale.The phenological growth stages and BBCH-identification keys of peanuts are:1 Leaves are counted from the cotyledon node...
- Silverleaf whiteflySilverleaf whiteflyThe silverleaf whitefly is one of several whiteflies that are currently important agricultural pests. The Silverleaf Whitefly is classified in the family Aleyrodidae, and is included in the large sub-order of insects, Heteroptera...
- Full Belly ProjectFull Belly ProjectThe Full Belly Project Ltd is a non-profit organization based out of Wilmington, North Carolina, which designs labor-saving devices to improve the lives of people in developing communities. Their main devices are the Universal Nut Sheller and the Rocker Water Pump.The first device, the UNS, they...
- Foam peanutFoam peanutFoam peanuts, also known as packing peanuts or packing noodles, are a common loose-fill packaging and cushioning material used to prevent damage to fragile objects during shipping. They are shaped to interlock when compressed and free flow when not compressed...
- Malian peanut shellerMalian peanut shellerThe Universal Nut Sheller is a simple hand-operated machine based on a Bulgarian Peanut sheller, capable of shelling of raw, sun-dried peanuts per hour....
- List of edible seeds
- Beer NutsBeer NutsBeer Nuts is a brand of snack food building on the original product, peanuts with a "unique" sweet-and-salty glazing made to a "secret recipe". According to the manufacturer's website, the ingredients comprise "Peanuts, Vegetable Oil , Corn Syrup and Salt".In spite of their name, Beer Nuts do not...
- African Groundnut CouncilAfrican Groundnut CouncilThe African Groundnut Council is a state-level organization designed to promote groundnuts produced in the countries of The Gambia, Mali, Niger, Senegal, the Sudan and Nigeria.-History:...
External links
- Groundnut (peanut) from the International Crops Research Institute for the Semi-Arid TropicsInternational Crops Research Institute for the Semi-Arid TropicsThe International Crops Research Institute for the Semi-Arid-Tropics is a non-profit organization in India.It was founded in 1972 by a consortium of organizations convened by the Ford and the Rockefeller Foundations. Its charter was signed by the FAO and the UNDP...
- Peanut Program from Citizens Against Government WasteCitizens Against Government WasteCitizens Against Government Waste is a 501 non-profit organization in the United States. It functions as a think-tank, 'government watchdog', and advocacy group for fiscally conservative causes...
- World Geography of the Peanut (2006) from the University of GeorgiaUniversity of GeorgiaThe University of Georgia is a public research university located in Athens, Georgia, United States. Founded in 1785, it is the oldest and largest of the state's institutions of higher learning and is one of multiple schools to claim the title of the oldest public university in the United States...
- Peanut (Alternative Field Crops Manual, 1991) by D.H. Putnam & E.S. Oplinger, from the Center for Alternative Plant and Animal Products, University of MinnesotaUniversity of MinnesotaThe University of Minnesota, Twin Cities is a public research university located in Minneapolis and St. Paul, Minnesota, United States. It is the oldest and largest part of the University of Minnesota system and has the fourth-largest main campus student body in the United States, with 52,557...
- New World Foods, Old World Diet (1992) by Paul Lunde, from Saudi Aramco WorldSaudi Aramco WorldSaudi Aramco World is a bi-monthly magazine published by Saudi Aramco, the national oil company of Saudi Arabia. In 2004, the magazine's website was awarded "Best Magazine Website" by the Web Marketing Association...