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A bean is the seed of several plants in the family
Fabaceae The Fabaceae or Leguminosae,International Code of Nomenc ...
, which are used as
vegetables Vegetables are parts of plants that are consumed by humans or other animals as food. The original meaning is still commonly used and is applied to plants collectively to refer to all edible plant matter, including the flowers, fruits, stems ...
for human or animal food. They can be cooked in many different ways, including boiling, frying, and baking, and are used in many traditional dishes throughout the world.


Terminology

The word "bean" and its Germanic
cognate In historical linguistics, cognates or lexical cognates are sets of words in different languages that have been inherited in direct descent from an etymological ancestor in a common parent language. Because language change can have radical ef ...
s (e.g.
German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...
'' Bohne'') have existed in common use in
West Germanic languages The West Germanic languages constitute the largest of the three branches of the Germanic family of languages (the others being the North Germanic and the extinct East Germanic languages). The West Germanic branch is classically subdivided into ...
since before the 12th century, referring to broad beans,
chickpea The chickpea or chick pea (''Cicer arietinum'') is an annual legume of the family Fabaceae, subfamily Faboideae. Its different types are variously known as gram" or Bengal gram, garbanzo or garbanzo bean, or Egyptian pea. Chickpea seeds are h ...
s, and other pod-borne seeds. This was long before the
New World The term ''New World'' is often used to mean the majority of Earth's Western Hemisphere, specifically the Americas."America." ''The Oxford Companion to the English Language'' (). McArthur, Tom, ed., 1992. New York: Oxford University Press, p. ...
genus ''
Phaseolus ''Phaseolus'' (bean, wild bean) is a genus of herbaceous to woody annual and perennial vines in the family Fabaceae containing about 70 plant species, all native to the Americas, primarily Mesoamerica. It is one of the most economically importan ...
'' was known in Europe. After Columbian-era contact between Europe and the Americas, use of the word was extended to pod-borne seeds of ''Phaseolus'', such as the
common bean ''Phaseolus vulgaris'', the common bean, is a herbaceous annual plant grown worldwide for its edible dry seeds or green, unripe pods. Its leaf is also occasionally used as a vegetable and the straw as fodder. Its botanical classification, alo ...
and the
runner bean ''Phaseolus coccineus'', known as runner bean, scarlet runner bean, or multiflora bean, is a plant in the legume family, Fabaceae. Another common name is butter bean, which, however, can also refer to the lima bean, a different species. It is ...
, and the related genus ''
Vigna ''Vigna'' is a genus of plants in the legume family, Fabaceae, with a pantropical distribution.Aitawade, M. M., et al. (2012)Section ''Ceratotropis'' of subgenus ''Ceratotropis'' of ''Vigna'' (Leguminosae–Papilionoideae) in India with a new ...
''. The term has long been applied generally to many other seeds of similar form, such as Old World
soybean The soybean, soy bean, or soya bean (''Glycine max'') is a species of legume native to East Asia, widely grown for its edible bean, which has numerous uses. Traditional unfermented food uses of soybeans include soy milk, from which tofu ...
s,
pea The pea is most commonly the small spherical seed or the seed-pod of the flowering plant species ''Pisum sativum''. Each pod contains several peas, which can be green or yellow. Botanically, pea pods are fruit, since they contain seeds and d ...
s, other
vetches ''Vicia'' is a genus of over 240 species of flowering plants that are part of the legume family (Fabaceae), and which are commonly known as vetches. Member species are native to Europe, North America, South America, Asia and Africa. Some other ...
, and lupins, and even to those with slighter resemblances, such as
coffee bean A coffee bean is a seed of the '' Coffea'' plant and the source for coffee. It is the pip inside the red or purple fruit often referred to as a coffee cherry. Just like ordinary cherries, the coffee fruit is also a so-called stone fruit. Even th ...
s, vanilla beans, castor beans, and
cocoa bean The cocoa bean (technically cocoa seed) or simply cocoa (), also called the cacao bean (technically cacao seed) or cacao (), is the dried and fully Fermentation, fermented seed of ''Theobroma cacao'', from which cocoa solids (a mixture of non ...
s. Thus the term "bean" in general
usage The usage of a language is the ways in which its written and spoken variations are routinely employed by its speakers; that is, it refers to "the collective habits of a language's native speakers", as opposed to idealized models of how a languag ...
can refer to a host of different species. Seeds called "beans" are often included among the crops called "pulses" (
legume A legume () is a plant in the family Fabaceae (or Leguminosae), or the fruit or seed of such a plant. When used as a dry grain, the seed is also called a pulse. Legumes are grown agriculturally, primarily for human consumption, for livestock for ...
s), although the words are not always interchangeable (usage varies by plant variety and by region). Both terms, ''beans'' and ''pulses'', are usually reserved for grain crops and thus exclude those legumes that have tiny seeds and are used exclusively for non-grain purposes (
forage Forage is a plant material (mainly plant leaves and stems) eaten by grazing livestock. Historically, the term ''forage'' has meant only plants eaten by the animals directly as pasture, crop residue, or immature cereal crops, but it is also use ...
, hay, and silage), such as
clover Clover or trefoil are common names for plants of the genus ''Trifolium'' (from Latin ''tres'' 'three' + ''folium'' 'leaf'), consisting of about 300 species of flowering plants in the legume or pea family Fabaceae originating in Europe. The genus ...
and
alfalfa Alfalfa () (''Medicago sativa''), also called lucerne, is a perennial flowering plant in the legume family Fabaceae. It is cultivated as an important forage crop in many countries around the world. It is used for grazing, hay, and silage, as ...
. The United Nations
Food and Agriculture Organization The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
defines "BEANS, DRY" (item code 176) as applicable only to species of ''Phaseolus''. This is one of various examples of how narrower
word sense In linguistics, a word sense is one of the meanings of a word. For example, a dictionary may have over 50 different senses of the word " play", each of these having a different meaning based on the context of the word's usage in a sentence, as ...
s enforced in trade regulations or
botany Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek w ...
often coexist in
natural language In neuropsychology, linguistics, and philosophy of language, a natural language or ordinary language is any language that has evolved naturally in humans through use and repetition without conscious planning or premeditation. Natural languages ...
with broader
senses A sense is a biological system used by an organism for sensation, the process of gathering information about the world through the detection of stimuli. (For example, in the human body, the brain which is part of the central nervous system re ...
in culinary use and general use; other common examples are the narrow sense of the word ''nut'' and the broader sense of the word ''nut'', and the fact that tomatoes are fruit, botanically speaking, but are often treated as vegetables in culinary and general usage. Relatedly, another detail of usage is that several species of plants that are sometimes called beans, including ''Vigna angularis'' (
azuki bean ''Vigna angularis'', also known as the adzuki bean , azuki bean, aduki bean, red bean, or red mung bean, is an annual vine widely cultivated throughout East Asia for its small (approximately long) bean. The cultivars most familiar in East Asia ...
), ''mungo'' ( black gram), ''radiata'' (
green gram The mung bean (''Vigna radiata''), alternatively known as the green gram, maash ( fa, ماش٫ )٫ mūng (), monggo, or munggo (Philippines), is a plant species in the legume family.Brief Introduction of Mung Bean. Vigna Radiata Extract G ...
), and ''aconitifolia'' ( moth bean), were once
classified Classified may refer to: General *Classified information, material that a government body deems to be sensitive *Classified advertising or "classifieds" Music *Classified (rapper) (born 1977), Canadian rapper * The Classified, a 1980s American ro ...
as ''Phaseolus'' but later reclassified—but the taxonomic revision does not entirely stop the use of well-established senses in general usage.


Cultivation

Unlike the closely related
pea The pea is most commonly the small spherical seed or the seed-pod of the flowering plant species ''Pisum sativum''. Each pod contains several peas, which can be green or yellow. Botanically, pea pods are fruit, since they contain seeds and d ...
, beans are a summer crop that needs warm temperatures to grow. Legumes are capable of
nitrogen fixation Nitrogen fixation is a chemical process by which molecular nitrogen (), with a strong triple covalent bond, in the air is converted into ammonia () or related nitrogenous compounds, typically in soil or aquatic systems but also in industry. Atmo ...
and hence need less fertiliser than most plants. Maturity is typically 55–60 days from planting to harvest. As the bean pods mature, they turn yellow and dry up, and the beans inside change from green to their mature colour. As a
vine A vine (Latin ''vīnea'' "grapevine", "vineyard", from ''vīnum'' "wine") is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas or runners. The word ''vine'' can also refer to such stems or runners themsel ...
, bean plants need external support, which may take the form of special "bean cages" or poles. Native Americans customarily grew them along with corn and squash (the so-called Three Sisters), with the tall cornstalks acting as support for the beans. In more recent times, the so-called "bush bean" has been developed which does not require support and has all its pods develop simultaneously (as opposed to pole beans which develop gradually). This makes the bush bean more practical for commercial production.


History

Beans were an important source of
protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, res ...
throughout Old and New World history, and still are today. Beans are one of the longest-cultivated plants in history. Broad beans, also called fava beans, are in their wild state the size of a small fingernail, and were first gathered in
Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is borde ...
and the Himalayan foothills. An early cultivated form were grown in Thailand from the early seventh millennium BCE, predating ceramics. Beans were deposited with the dead in ancient Egypt. Not until the second millennium BCE did cultivated, large-seeded broad beans appear in the
Aegean region The Aegean Region () is one of the 7 geographical regions of Turkey. The largest city in the region is İzmir. Other big cities are Manisa, Aydın, Denizli, Muğla, Afyonkarahisar and Kütahya. Located in western Turkey, it is bordere ...
,
Iberia The Iberian Peninsula (), ** * Aragonese language, Aragonese and Occitan language, Occitan: ''Peninsula Iberica'' ** ** * french: Péninsule Ibérique * mwl, Península Eibérica * eu, Iberiar penintsula also known as Iberia, is a pe ...
, and transalpine Europe. In the ''
Iliad The ''Iliad'' (; grc, Ἰλιάς, Iliás, ; "a poem about Ilium") is one of two major ancient Greek epic poems attributed to Homer. It is one of the oldest extant works of literature still widely read by modern audiences. As with the ''Ody ...
'' (8th century BCE), there is a passing mention of beans and
chickpea The chickpea or chick pea (''Cicer arietinum'') is an annual legume of the family Fabaceae, subfamily Faboideae. Its different types are variously known as gram" or Bengal gram, garbanzo or garbanzo bean, or Egyptian pea. Chickpea seeds are h ...
s cast on the threshing floor. The oldest-known domesticated beans in the Americas were found in Guitarrero Cave, an archaeological site in
Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = National seal , national_motto = "Firm and Happy f ...
, and dated to around the second millennium BCE. However, genetic analyses of the common bean ''Phaseolus'' show that it originated in
Mesoamerica Mesoamerica is a historical region and cultural area in southern North America and most of Central America. It extends from approximately central Mexico through Belize, Guatemala, El Salvador, Honduras, Nicaragua, and northern Costa Rica. Wit ...
, and subsequently spread southward, along with
maize Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American English, North American and Australian English), is a cereal grain first domesticated by indigenous peoples of Mexico, indigenous ...
and squash, traditional companion crops. Most of the kinds of beans commonly eaten today are part of the genus ''Phaseolus'', which originated in the Americas. The first European to encounter them was
Christopher Columbus Christopher Columbus * lij, Cristoffa C(or)ombo * es, link=no, Cristóbal Colón * pt, Cristóvão Colombo * ca, Cristòfor (or ) * la, Christophorus Columbus. (; born between 25 August and 31 October 1451, died 20 May 1506) was a ...
, while exploring what may have been the
Bahamas The Bahamas (), officially the Commonwealth of The Bahamas, is an island country within the Lucayan Archipelago of the West Indies in the North Atlantic. It takes up 97% of the Lucayan Archipelago's land area and is home to 88% of the a ...
, and saw them growing in fields. Five kinds of ''
Phaseolus ''Phaseolus'' (bean, wild bean) is a genus of herbaceous to woody annual and perennial vines in the family Fabaceae containing about 70 plant species, all native to the Americas, primarily Mesoamerica. It is one of the most economically importan ...
'' beans were domesticated by pre-Columbian peoples: common beans ('' P. vulgaris'') grown from Chile to the northern part of what is now the United States; and lima and sieva beans ('' P. lunatus''); as well as the less widely distributed teparies ('' P. acutifolius''), scarlet runner beans ('' P. coccineus''), and polyanthus beans. One well-documented use of beans by
pre-Columbian In the history of the Americas, the pre-Columbian era spans from the original settlement of North and South America in the Upper Paleolithic period through European colonization, which began with Christopher Columbus's voyage of 1492. Usually, ...
people as far north as the Atlantic seaboard is the " Three Sisters" method of companion plant cultivation: Many tribes would grow beans together with
maize Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American English, North American and Australian English), is a cereal grain first domesticated by indigenous peoples of Mexico, indigenous ...
(corn), and squash. The corn would not be planted in rows as is done by European agriculture, but in a checkerboard/hex fashion across a field, in separate patches of one to six stalks each. Beans would be planted around the base of the developing stalks, and would vine their way up as the stalks grew. All American beans at that time were vine plants; "bush beans" were cultivated more recently. The cornstalks would work as a trellis for the bean plants, and the beans would provide much-needed
nitrogen Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at se ...
for the corn. Squash would be planted in the spaces between the patches of corn in the field. They would be provided slight shelter from the sun by the corn, would shade the soil and reduce evaporation, and would deter many animals from attacking the corn and beans because their coarse, hairy vines and broad, stiff leaves are difficult or uncomfortable for animals such as deer and raccoons to walk through, crows to land on, and are a deterrent to other animals as well. Beans were cultivated across Chile in Pre-Hispanic times, likely as far south as
Chiloé Archipelago The Chiloé Archipelago ( es, Archipiélago de Chiloé, , ) is a group of islands lying off the coast of Chile, in the Los Lagos Region. It is separated from mainland Chile by the Chacao Channel in the north, the Sea of Chiloé in the east and t ...
. Dry beans come from both Old World varieties of broad beans (fava beans) and New World varieties (kidney, black, cranberry, pinto, navy/haricot).


Common genera and species

Currently, the world
gene banks Eugene Lavon Banks (born May 15, 1959) is an American former professional basketball player. He was born and raised in Philadelphia. High School Career and College Recruitment A 6'7" forward, Banks attended high school in West Philadelphia. Ni ...
hold about 40,000 bean varieties, although only a fraction are mass-produced for regular consumption. Most of the foods we call "beans", "legumes", "lentils" and "pulses" belong to the same family,
Fabaceae The Fabaceae or Leguminosae,International Code of Nomenc ...
("leguminous" plants), but are from different genera and species, native to different homelands and distributed worldwide depending on their adaptability. Many varieties are eaten both fresh (the whole pod, and the immature beans may or may not inside) or shelled (immature seeds, mature and fresh seeds, or mature and dried seeds). Numerous legumes look similar, and have become naturalized in locations across the world, which often lead to similar names for different species.


Properties


Nutrients

Beans are high in
protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, res ...
, complex carbohydrates,
folate Folate, also known as vitamin B9 and folacin, is one of the B vitamins. Manufactured folic acid, which is converted into folate by the body, is used as a dietary supplement and in food fortification as it is more stable during processing an ...
, and
iron Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in ...
. Beans also have significant amounts of fiber and
soluble fiber Dietary fiber (in British English fibre) or roughage is the portion of plant-derived food that cannot be completely broken down by human digestive enzymes. Dietary fibers are diverse in chemical composition, and can be grouped generally by th ...
, with one cup of cooked beans providing between 9 and 13 grams of fiber.Mixed Bean Salad
(information and recipe) fro
The Mayo Clinic Healthy Recipes
. Accessed February 2010.
Soluble fiber can help lower blood
cholesterol Cholesterol is any of a class of certain organic molecules called lipids. It is a sterol (or modified steroid), a type of lipid. Cholesterol is biosynthesized by all animal cells and is an essential structural component of animal cell memb ...
. The Canadian government recommends that adults have up to two (female), and three (male) servings. 3/4 cup of cooked beans provide one serving.


Antinutrients

Many types of bean like kidney bean contain significant amounts of
antinutrient Antinutrients are natural or synthetic compounds that interfere with the absorption of nutrients. Nutrition studies focus on antinutrients commonly found in food sources and beverages. Antinutrients may take the form of drugs, chemicals that natur ...
s that inhibit some enzyme processes in the body.
Phytic acid Phytic acid is a six-fold dihydrogenphosphate ester of inositol (specifically, of the ''myo'' isomer), also called inositol hexakisphosphate (IP6) or inositol polyphosphate. At physiological pH, the phosphates are partially ionized, resulting ...
and phytates, present in grains, nuts, seeds and beans, interfere with bone growth and interrupt
vitamin D Vitamin D is a group of Lipophilicity, fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and many other biological effects. In humans, the most important compounds in this group ar ...
metabolism. Pioneering work on the effect of phytic acid was done by
Edward Mellanby Sir Edward Mellanby (8 April 1884 – 30 January 1955) was a British biochemist and nutritionist who discovered vitamin D and its role in preventing rickets in 1919. Education Mellanby was born in West Hartlepool, the son of a shipyard owner ...
from 1939.


Health concerns


Toxins

Some kinds of raw beans contain a harmful, tasteless toxin: the
lectin Lectins are carbohydrate-binding proteins that are highly specific for sugar groups that are part of other molecules, so cause agglutination of particular cells or precipitation of glycoconjugates and polysaccharides. Lectins have a role in rec ...
phytohaemagglutinin, which must be removed by cooking. Red
kidney bean The kidney bean is a variety of the common bean ('' Phaseolus vulgaris''). It resembles a human kidney and thus is named after such. Red kidney beans should not be confused with other red beans, such as adzuki beans. Classification There ar ...
s are particularly toxic, but other types also pose risks of
food poisoning Foodborne illness (also foodborne disease and food poisoning) is any illness resulting from the spoilage of contaminated food by pathogenic bacteria, viruses, or parasites that contaminate food, as well as prions (the agents of mad cow disea ...
. Many types of beans contain lectins, and kidney beans have the highest concentrations – especially red kidney beans. As few as 4 or 5 raw beans can cause severe stomachache, vomiting and diarrhoea. A recommended method is to boil the beans for at least ten minutes; under-cooked beans may be more toxic than raw beans. Cooking beans, without bringing them to a boil, in a
slow cooker A slow cooker, also known as a crock-pot (after a trademark owned by Sunbeam Products but sometimes used generically in the English-speaking world), is a countertop electrical cooking appliance used to simmer at a lower temperature than o ...
at a temperature well below boiling may not destroy toxins. A case of poisoning by butter beans used to make
falafel Falafel (; ar, فلافل, ) is a deep-fried ball or patty-shaped fritter in Middle Eastern cuisine (especially in Levantine and Egyptian cuisines) made from ground chickpeas, broad beans, or both. Nowadays, falafel is often served ...
was reported; the beans were used instead of traditional broad beans or
chickpea The chickpea or chick pea (''Cicer arietinum'') is an annual legume of the family Fabaceae, subfamily Faboideae. Its different types are variously known as gram" or Bengal gram, garbanzo or garbanzo bean, or Egyptian pea. Chickpea seeds are h ...
s, soaked and ground without boiling, made into patties, and shallow fried. Bean poisoning is not well known in the medical community, and many cases may be misdiagnosed or never reported; figures appear not to be available. In the case of the UK National Poisons Information Service, available only to health professionals, the dangers of beans other than red beans were not flagged .
Fermentation Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen. In food p ...
is used in some parts of Africa to improve the nutritional value of beans by removing toxins. Inexpensive fermentation improves the nutritional impact of flour from dry beans and improves digestibility, according to research co-authored by Emire Shimelis, from the Food Engineering Program at Addis Ababa University. Beans are a major source of dietary
protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, res ...
in Kenya, Malawi, Tanzania, Uganda and Zambia.


Bacterial infection from bean sprouts

It is common to make beansprouts by letting some types of bean, often
mung bean The mung bean (''Vigna radiata''), alternatively known as the green gram, maash ( fa, ماش٫ )٫ mūng (), monggo, or munggo (Philippines), is a plant species in the Fabaceae, legume family.Brief Introduction of Mung Bean. Vigna Radiata ...
s, germinate in moist and warm conditions; beansprouts may be used as ingredients in cooked dishes, or eaten raw or lightly cooked. There have been many outbreaks of disease from bacterial contamination, often by ''
salmonella ''Salmonella'' is a genus of rod-shaped (bacillus) Gram-negative bacteria of the family Enterobacteriaceae. The two species of ''Salmonella'' are '' Salmonella enterica'' and '' Salmonella bongori''. ''S. enterica'' is the type species and is ...
'', ''
listeria ''Listeria'' is a genus of bacteria that acts as an intracellular parasite in mammals. Until 1992, 17 species were known, each containing two subspecies. By 2020, 21 species had been identified. The genus is named in honour of the British pio ...
'', and ''
Escherichia coli ''Escherichia coli'' (),Wells, J. C. (2000) Longman Pronunciation Dictionary. Harlow ngland Pearson Education Ltd. also known as ''E. coli'' (), is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus '' Esc ...
'', of beansprouts not thoroughly cooked, some causing significant mortality.


Flatulence

Many edible beans, including broad beans, navy beans, kidney beans and soybeans, contain
oligosaccharide An oligosaccharide (/ˌɑlɪgoʊˈsækəˌɹaɪd/; from the Greek ὀλίγος ''olígos'', "a few", and σάκχαρ ''sácchar'', "sugar") is a saccharide polymer containing a small number (typically two to ten) of monosaccharides (simple sug ...
s (particularly
raffinose Raffinose is a trisaccharide composed of galactose, glucose, and fructose. It can be found in beans, cabbage, brussels sprouts, broccoli, asparagus, other vegetables, and whole grains. Raffinose can be hydrolyzed to D-galactose and sucrose ...
and stachyose), a type of sugar molecule also found in
cabbage Cabbage, comprising several cultivars of ''Brassica oleracea'', is a leafy green, red (purple), or white (pale green) biennial plant grown as an annual vegetable crop for its dense-leaved heads. It is descended from the wild cabbage ( ''B.&n ...
. An anti-oligosaccharide
enzyme Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products ...
is necessary to properly digest these sugar molecules. As a normal human digestive tract does not contain any anti-oligosaccharide enzymes, consumed oligosaccharides are typically digested by
bacteria Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were am ...
in the large intestine. This digestion process produces gases, such as methane as a byproduct, which are then released as
flatulence Flatulence, in humans, is the expulsion of gas from the intestines via the anus, commonly referred to as farting. "Flatus" is the medical word for gas generated in the stomach or bowels. A proportion of intestinal gas may be swallowed enviro ...
.


Production

The production data for legumes are published by FAO in three categories: # Pulses dry: all mature and dry seeds of leguminous plants except soybeans and groundnuts. # Oil crops: soybeans and groundnuts. # Fresh vegetable: immature green fresh fruits of leguminous plants. The following is a summary of FAO data. Main crops of "Pulses, Total (dry)" are "Beans, dry 76 26.83 million tons, "Peas, dry 87 14.36 million tons, "Chick peas 91 12.09 million tons, "Cow peas 95 6.99 million tons, "Lentils 01 6.32 million tons, "Pigeon peas 97 4.49 million tons, "Broad beans, horse beans 81 4.46 million tons. In general, the consumption of pulses per capita has been decreasing since 1961. Exceptions are lentils and cowpeas. The world leader in production of dry beans (''
Phaseolus ''Phaseolus'' (bean, wild bean) is a genus of herbaceous to woody annual and perennial vines in the family Fabaceae containing about 70 plant species, all native to the Americas, primarily Mesoamerica. It is one of the most economically importan ...
'' spp), is India, followed by Myanmar (Burma) and Brazil. In Africa, the most important producer is Tanzania.FA
Pulses and Derived Products
No symbol = official figure, P = official figure, F = FAO estimate, * = unofficial/semi-official/mirror data, C = calculated figure A = aggregate (may include official, semi-official or estimates) ''Source: UN Food and Agriculture Organization (FAO)''


See also

* Baked beans *
Jelly beans Jelly beans are small bean shaped sugar candies with soft candy shells and thick gel interiors (see gelatin and jelly). The confection is primarily made of sugar and sold in a wide variety of colors and flavors. History It has been claime ...
* Mexican jumping bean *
List of bean soups This is a list of notable bean soups, characterized by soups that use beans as a primary ingredient. Bean soups * 15 Bean Soup – a packaged dry bean soup mix produced by the N.K. Hurst Co. in the United States * Amish preaching soup – in ...
** Fassoulada – a bean soup *
List of edible seeds An edible seed is a seed that is suitable for human or animal consumption. Of the six major plant parts, seeds are the dominant source of human calories and protein. A wide variety of plant species provide edible seeds; most are angiosperms, while ...
*
List of legume dishes This is a list of legume dishes. A legume is a plant in the family Fabaceae (or Leguminosae), or the fruit or seed of such a plant. Legumes are grown agriculturally, primarily for their food grain seed (e.g. beans and lentils, or generally pul ...


References


Bibliography

*


External links


Everett H. Bickley Collection, 1919–1980
Archives Center, National Museum of American History, Smithsonian Institution.


Fermentation improves nutritional value of beans


{{Authority control Edible legumes Pod vegetables Staple foods Vegan cuisine Vegetarian cuisine Crops Plant common names