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→Cashew nut and shell: The sentence was an untrue generalization, vaguely sourced. I welcome any other edit that makes it better, this is just my idea of how it might be. There are 200 mi Brazilians. What does page 5 of some book know about all those people? Must I source the obviety that is that not all Brazilians think alike about this fruit?
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Undid revision 855678659 by Mateussf (talk) per WP:WEASEL. A better way to handle this would be either to go to the ref and see if the sentence could be rewritten, or find a better reliable source with better figures.
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In [[Mozambique]], ''bolo polana'' is a cake prepared using powdered cashews and mashed potatoes as the main ingredients. This dessert is popular in South Africa.<ref>{{cite book|title=South Africa Eats|author=Phillippa Cheifitz|year=2009|url=http://www.worldcat.org/title/south-africa-eats/oclc/519442115}}</ref>
In [[Mozambique]], ''bolo polana'' is a cake prepared using powdered cashews and mashed potatoes as the main ingredients. This dessert is popular in South Africa.<ref>{{cite book|title=South Africa Eats|author=Phillippa Cheifitz|year=2009|url=http://www.worldcat.org/title/south-africa-eats/oclc/519442115}}</ref>


In [[Brazil]], the cashew fruit juice is popular. Some say Brazilians prefer the fruit to the nut.<ref>Jostock, "Cashew Industry" p. 5.</ref> In [[Panama]], the cashew fruit is cooked with water and sugar for a prolonged time to make a sweet, brown, paste-like dessert called ''dulce de marañón'', with ''marañón'' as a Spanish name for cashew.
In [[Brazil]], the cashew fruit juice is popular. Brazilians prefer the fruit to the nut.<ref>Jostock, "Cashew Industry" p. 5.</ref> In [[Panama]], the cashew fruit is cooked with water and sugar for a prolonged time to make a sweet, brown, paste-like dessert called ''dulce de marañón'', with ''marañón'' as a Spanish name for cashew.


In the 21st century, cashew cultivation increased in several African countries to meet the demands for manufacturing [[cashew milk]], a [[plant milk]] alternative to [[dairy milk]].<ref>{{cite web|url=http://consumergoods.edgl.com/column/Access-to-Market-Data-and-Supply-Chain-Visibility-offer-Economic-Boost-to-Ghana-Cashew-Farmers101911|title=Access to Market Data and Supply Chain Visibility offer Economic Boost to Ghana Cashew Farmers|author=Osborn M|publisher=Consumer Goods Technology|date=26 August 2015|accessdate=11 May 2016}}</ref>
In the 21st century, cashew cultivation increased in several African countries to meet the demands for manufacturing [[cashew milk]], a [[plant milk]] alternative to [[dairy milk]].<ref>{{cite web|url=http://consumergoods.edgl.com/column/Access-to-Market-Data-and-Supply-Chain-Visibility-offer-Economic-Boost-to-Ghana-Cashew-Farmers101911|title=Access to Market Data and Supply Chain Visibility offer Economic Boost to Ghana Cashew Farmers|author=Osborn M|publisher=Consumer Goods Technology|date=26 August 2015|accessdate=11 May 2016}}</ref>

Revision as of 04:46, 20 August 2018

Cashew
Ripe cashew fruit
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Anacardiaceae
Genus: Anacardium
Species:
A. occidentale
Binomial name
Anacardium occidentale

The cashew tree (Anacardium occidentale) is a tropical evergreen tree that produces the cashew seed and the cashew apple.[1] It can grow as high as 14 m (46 ft), but the dwarf cashew, growing up to 6 m (20 ft), has proved more profitable, with earlier maturity and higher yields.

The species is originally native to northeastern Brazil.[1] Portuguese colonists in Brazil began exporting cashew nuts as early as the 1550s.[2] Major production of cashews occurs in Vietnam, Nigeria, India, and Ivory Coast.[3]

The cashew nut, often simply called a cashew, is widely consumed. It is eaten on its own, used in recipes, or processed into cashew cheese or cashew butter. The shell of the cashew seed yields derivatives that can be used in many applications including lubricants, waterproofing, paints, and arms production, starting in World War II.[4] The cashew apple is a light reddish to yellow fruit, whose pulp can be processed into a sweet, astringent fruit drink or distilled into liquor.

Etymology

Its English name derives from the Portuguese name for the fruit of the cashew tree cajú (Portuguese pronunciation: [kaˈʒu]), which itself is derived from the Tupian word acajú, literally meaning "nut that produces itself".[1] The generic name "Anacardium" (derived from Greek ἀνά (aná), meaning "outside," and καρδία (kardía), meaning "heart", refers to the unusual location of the seed (the heart) outside of the fruit.

Habitat and growth

Flower of cashew tree
Cashew tree

The cashew tree is large and evergreen, growing to 14 m (46 ft) tall, with a short, often irregularly shaped trunk. The leaves are spirally arranged, leathery textured, elliptic to obovate, 4–22 cm (1.6–8.7 in) long and 2–15 cm (0.79–5.91 in) broad, with smooth margins. The flowers are produced in a panicle or corymb up to 26 cm (10 in) long; each flower is small, pale green at first, then turning reddish, with five slender, acute petals 7–15 mm (0.28–0.59 in) long. The largest cashew tree in the world covers an area around 7,500 m2 (81,000 sq ft); it is located in Natal, Rio Grande do Norte, Brazil.

The fruit of the cashew tree is an accessory fruit (sometimes called a pseudocarp or false fruit).[1] What appears to be the fruit is an oval or pear-shaped structure, a hypocarpium, that develops from the pedicel and the receptacle of the cashew flower.[5] Called the cashew apple, better known in Central America as marañón, it ripens into a yellow or red structure about 5–11 cm (2.0–4.3 in) long. It is edible and has a strong "sweet" smell and taste.[citation needed]

The true fruit of the cashew tree is a kidney or boxing-glove shaped drupe that grows at the end of the cashew apple. The drupe develops first on the tree, and then the pedicel expands to become the cashew apple.[1] Within the true fruit is a single seed, which is often considered a nut, in the culinary sense. The seed is surrounded by a double shell containing an allergenic phenolic resin, anacardic acid, a potent skin irritant chemically related to the better-known allergenic oil urushiol which is also a toxin found in the related poison ivy. Some people are allergic to cashews, but cashews are a less frequent allergen than tree nuts or peanuts.[6]

While the cashew plant is native to northeast Brazil, the Portuguese took it to Goa, India, between 1560 and 1565. From there, it spread throughout Southeast Asia and eventually Africa.

Cashew nut and shell

A woman uses a machine to shell cashews in Phuket, Thailand.
Cashews as a snack

Culinary uses for cashew seeds in snacking and cooking are similar to those for all tree seeds called nuts.

Cashews are commonly used in Indian cuisine and Pakistani cuisine, whole for garnishing sweets or curries, or ground into a paste that forms a base of sauces for curries (e.g., korma), or some sweets (e.g., kaju barfi). It is also used in powdered form in the preparation of several Indian sweets and desserts. In Goan cuisine, both roasted and raw kernels are used whole for making curries and sweets. Cashews are also used in Thai and Chinese cuisines, generally in whole form. In the Philippines, cashew is a known product of Antipolo, and is eaten with suman. The province of Pampanga also has a sweet dessert called turrones de casuy, which is cashew marzipan wrapped in white wafers. In Indonesia, roasted and salted cashews are called kacang mete or kacang mede, while the cashew apple is called jambu monyet (translates in English to monkey rose apple).

In Mozambique, bolo polana is a cake prepared using powdered cashews and mashed potatoes as the main ingredients. This dessert is popular in South Africa.[7]

In Brazil, the cashew fruit juice is popular. Brazilians prefer the fruit to the nut.[8] In Panama, the cashew fruit is cooked with water and sugar for a prolonged time to make a sweet, brown, paste-like dessert called dulce de marañón, with marañón as a Spanish name for cashew.

In the 21st century, cashew cultivation increased in several African countries to meet the demands for manufacturing cashew milk, a plant milk alternative to dairy milk.[9]

The shell of the cashew nut contains oil compounds which may cause contact dermatitis similar in severity to that of poison ivy, primarily resulting from the phenolic lipids, anacardic acid, and cardanol.[10] Due to the possible dermatitis, cashews are typically not sold in the shell to consumers.[11] Readily and inexpensively extracted from the waste shells, cardanol is under research for its potential applications in nanomaterials and biotechnology.[12]

Production

Cashew Nut Production (as Kernels) - 2015
Country
Production
(tonnes)
 India
172,719
 Côte d'Ivoire
171,111
 Vietnam
113,059
 Brazil
33,000
World
738,861
Source: Nuts and Dried Fruits, Global Statistical Review, 2015[13]

In 2015, global production of cashew nuts (as the kernel) was 738,861 tonnes, led by India and Côte d'Ivoire each with 23% of the world total (table). Vietnam and Brazil also had significant production of cashew kernels.

In 2014, rapid growth of cashew cultivation in Côte d'Ivoire made this country the top African exporter.[14] Fluctuations in world market prices, poor working conditions, and low pay for local harvesting have caused discontent in the cashew nut industry.[15][16][17]

The cashew tree is cultivated in the tropics between 25°N and 25°S, and is supremely adapted to hot lowland areas with a pronounced dry season, where the mango and tamarind trees also thrive.[18] The traditional cashew tree is tall (up to 14 m) and takes three years from planting before it starts production, and eight years before economic harvests can begin. More recent breeds, such as the dwarf cashew trees, are up to 6 m tall, and start producing after the first year, with economic yields after three years. The cashew nut yields for the traditional tree are about 0.25 metric tons per hectare, in contrast to over a ton per hectare for the dwarf variety. Grafting and other modern tree management technologies are used to further improve and sustain cashew nut yields in commercial orchards.

Nutrition

Cashews, raw
Nutritional value per 100 g (3.5 oz)
Energy553 kcal (2,310 kJ)
30.19 g
Starch23.49 g
Sugars 5.91 g
0.00 g
Dietary fiber3.3 g
43.85 g
Saturated7.783 g
Monounsaturated23.797 g
Polyunsaturated7.845 g
18.22 g
Vitamins and minerals
VitaminsQuantity
%DV†
Vitamin A0 IU
Thiamine (B1)
35%
0.423 mg
Riboflavin (B2)
4%
0.058 mg
Niacin (B3)
7%
1.062 mg
Pantothenic acid (B5)
17%
0.86 mg
Vitamin B6
25%
0.417 mg
Folate (B9)
6%
25 μg
Vitamin B12
0%
0 μg
Vitamin C
1%
0.5 mg
Vitamin D
0%
0 μg
Vitamin E
6%
0.90 mg
Vitamin K
28%
34.1 μg
MineralsQuantity
%DV†
Calcium
3%
37 mg
Copper
244%
2.2 mg
Iron
37%
6.68 mg
Magnesium
70%
292 mg
Manganese
72%
1.66 mg
Phosphorus
47%
593 mg
Potassium
22%
660 mg
Selenium
36%
19.9 μg
Sodium
1%
12 mg
Zinc
53%
5.78 mg
Other constituentsQuantity
Water5.20 g
Link to USDA Database entry
†Percentages estimated using US recommendations for adults,[19] except for potassium, which is estimated based on expert recommendation from the National Academies.[20]

In a 100-gram serving, raw cashews provide 553 Calories, 67% of the Daily Value (DV) in total fats, 36% DV of protein, 13% DV of dietary fiber and 11% DV of carbohydrates (table).[21] Cashews are rich sources (> 19% DV) of dietary minerals, including particularly copper, manganese, phosphorus, and magnesium (79-110% DV), and of thiamin, vitamin B6 and vitamin K (32-37% DV) (table).[21] Iron, potassium, zinc, and selenium are present in significant content (14-61% DV) (table).[21] Cashews (100 grams, raw) contain 113 milligrams (1.74 gr) of beta-sitosterol.[21]

Allergy

For some 6% of people, cashews can lead to complications or allergic reactions[22][23][24] which may be life-threatening.[23] These allergies are triggered by the proteins found in tree nuts, and cooking often does not remove or change these proteins. Reactions to cashew and tree nuts can also occur as a consequence of hidden nut ingredients or traces of nuts that may inadvertently be introduced during food processing, handling, or manufacturing, particularly in people of European descent.[22][23]

Cashew oil

Cashew oil is a dark yellow oil for cooking or salad dressing pressed from cashew nuts (typically broken chunks created during processing). This may be produced from a single cold pressing.[25]

Cashew shell oil

See also: Urushiol

Cashew nutshell liquid (CNSL) or cashew shell oil (CAS registry number 8007-24-7) is a natural resin with a yellowish sheen found in the honeycomb structure of the cashew nutshell, and is a byproduct of processing cashew nuts. It is a raw material of multiple uses in developing drugs, antioxidants, fungicides, and biomaterials.[12] It is used in tropical folk medicine and for antitermite treatment of timber.[26] Its composition varies depending on how it is processed.

  • Cold, solvent-extracted CNSL is mostly composed of anacardic acids (70%),[27] cardol (18%) and cardanol (5%).[12][28]
  • Heating CNSL decarboxylates the anacardic acids, producing a technical grade of CNSL that is rich in cardanol. Distillation of this material gives distilled, technical CNSL containing 78% cardanol and 8% cardol (cardol has one more hydroxyl group than cardanol).[28] This process also reduces the degree of thermal polymerization of the unsaturated alkyl-phenols present in CNSL.
  • Anacardic acid is also used in the chemical industry for the production of cardanol, which is used for resins, coatings, and frictional materials.[27][28]

These substances are skin allergens, like the oils of poison ivy, and present danger during manual cashew processing.[26]

This natural oil phenol has been found to have interesting chemical structural features which enable a range of chemical modifications to create a wide spectrum of biobased monomers capitalizing on the chemically versatile construct, containing three different functional groups: the aromatic ring, the hydroxyl group, and the double bonds in the flanking alkyl chain. These can be split into key groups, used as polyols, which have recently seen a dramatic increase in demand for their biobased origin and key chemical attributes such as high reactivity, range of functionalities, reduction in blowing agents, and naturally occurring fire retardant properties in the field of ridged polyurethanes aided by their inherent phenolic structure and larger number of reactive units per unit mass.[12]

CNSL may be used as a resin for carbon composite products.[29] CNSL-based Novolac is another versatile industrial monomer deriving from cardanol typically used as a reticulating agent for epoxy matrices in composite applications providing good thermal and mechanical properties to the final composite material.

Cashew apple

The cashew apple, also called cashew fruit, is the fleshy part of the cashew fruit attached to the cashew nut.[1] The top end of the cashew apple is attached to the stem that comes off the tree. The bottom end of the cashew apple attaches to the cashew nut, which is encased in a shell. In botanical terms, the cashew apple is an accessory fruit that grows on the cashew seed (which is the nut).

The cashew apple can be eaten fresh, cooked in curries, or fermented into vinegar, as well as an alcoholic drink. It is also used to make preserves, chutneys, and jams in some countries such as India and Brazil. In many countries, particularly in South America, the cashew apple is used to flavor drinks, both alcoholic and nonalcoholic.[1]

Cashew nuts are more widely traded than cashew apples, because the apple, unlike the nut, is easily bruised and has very limited shelf life.[30] Cashew apple juice, however, may be used for manufacturing blended juices.[30]

In cultures that consume cashew apples, this astringency is sometimes removed by steaming the fruit for five minutes before washing it in cold water; alternatively, boiling the fruit in salt water for five minutes or soaking it in gelatin solution also reduces the astringency.[31]

Alcohol

In Goa, the cashew apple is mashed and the juice extracted and kept for fermentation for a few days. Fermented juice then undergoes a double distillation process. The resulting beverage is called feni or fenny. Feni is about 40–42% alcohol. The single-distilled version is called urrac, which is about 15% alcohol.

In the southern region of Mtwara, Tanzania, the cashew apple (bibo in Swahili) is dried and saved. Later, it is reconstituted with water and fermented, then distilled to make a strong liquor often referred to by the generic name, gongo.

In Mozambique, cashew farmers commonly make a strong liquor from the cashew apple. It is known under various names in the local languages of Mozambique (muchekele in Emakua spoken in the North, xicadju in Changana spoken in the South). In contrast to the above-mentioned Feni of Goa, the cashew liquor made in Mozambique does not involve the extraction of the juice from the cashew apples. Following harvest and the removal of the nuts, the apples are spread on the ground under trees and courtyards and allowed to lose water and ferment. The shrivelled fruits are then used for distillation.

According to one source,[32] an alcohol had been distilled in the early 20th century from the juice of the fruit, and was manufactured in the West Indies.

Animal feed

Discarded cashew nuts unfit for human consumption, alongside the residues of oil extraction from cashew kernels, can be used to feed livestock. Animals can also eat the leaves of cashew trees.[33]

  • Young cashew fruits
    Young cashew fruits
  • Cashew sprouts are eaten raw or cooked
    Cashew sprouts are eaten raw or cooked
  • Cashew fruit seller in India
    Cashew fruit seller in India
  • Distilling cashew apple liquor or "muchekele" in Mozambique
    Distilling cashew apple liquor or "muchekele" in Mozambique
  • Shriveled, fermented cashew apples ready for distillation, Mozambique
    Shriveled, fermented cashew apples ready for distillation, Mozambique
  • 'Anacardium occidentale', from Koehler's 'Medicinal-Plants' (1887)
    'Anacardium occidentale', from Koehler's 'Medicinal-Plants' (1887)
  • Mameluca woman under a fruiting cashew tree (1641–1644) by Albert Eckhout. National Museum of Denmark
    Mameluca woman under a fruiting cashew tree (1641–1644) by Albert Eckhout. National Museum of Denmark
  • View of a Cashew tree stem in Lawachara National Park, Bangladesh. Photo of 2016.
    View of a Cashew tree stem in Lawachara National Park, Bangladesh. Photo of 2016.

See also

References

  1. ^ a b c d e f g Morton, Julia F (1987). "Cashew apple, Anacardium occidentale L." Fruits of warm climates, Julia F. Morton. Center for New Crops and Plant Products, Department of Horticulture and Landscape Architecture, Purdue University, W. Lafayette, IN. pp. 239–240. ISBN 978-0-9610184-1-2.
  2. ^ Carolyn Jostock, "Cashew Industry" in Encyclopedia of Latin American History and Culture, vol. 2, p. 5. New York: Charles Scribner's Sons 1996.
  3. ^ "Major Food And Agricultural Commodities And Producers – Countries By Commodity". United Nations Food and Agriculture Organization, Statistics Division. 2013. Retrieved 6 September 2015.
  4. ^ Jostock, "Cashew Industry", p. 5.
  5. ^ Varghese, T.; Pundir, Y. (1964). "Anatomy of the pseudocarp in Anacardium occidentale L.". Proceedings of the Indian Academy of Sciences, Section B. 59 (5): 252–258.
  6. ^ Rosen, T.; Fordice, D. B. (April 1994). "Cashew Nut Dermatitis". Southern Medical Journal. 87 (4): 543–546. doi:10.1097/00007611-199404000-00026. PMID 8153790.
  7. ^ Phillippa Cheifitz (2009). South Africa Eats.
  8. ^ Jostock, "Cashew Industry" p. 5.
  9. ^ Osborn M (26 August 2015). "Access to Market Data and Supply Chain Visibility offer Economic Boost to Ghana Cashew Farmers". Consumer Goods Technology. Retrieved 11 May 2016.
  10. ^ Rosen T.; Fordice, D. B. (1994). "Cashew nut dermatitis". South Med J. 87 (4): 543–46. doi:10.1097/00007611-199404000-00026. PMID 8153790.
  11. ^ "Why Cashews Aren't Sold In The Shell". Moment of Science, Indiana Public Media. September 6, 2013.
  12. ^ a b c d Hamad F. B.; Mubofu E. B. (2015). "Potential biological applications of bio-based anacardic acids and their derivatives". Int J Mol Sci. 16 (4): 8569–90. doi:10.3390/ijms16048569. PMC 4425097. PMID 25894225.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  13. ^ "Nuts & Dried Fruits Global Statistical Review 2015 / 2016, p22" (PDF). International Nut and Dried Fruit Council. Archived from the original (PDF) on 16 May 2017. Retrieved 26 June 2017. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  14. ^ Bavier, Joe (29 October 2014). "War-scarred Ivory Coast aims to conquer the world of cashews". Reuters. Retrieved 9 February 2015.
  15. ^ "Tanzania riots over cashew nut payments". BBC. 24 April 2013. Retrieved 14 May 2013.
  16. ^ Lamble L. (2 November 2013). "Cashew nut workers suffer 'appalling' conditions as global slump dents profits". The Guardian. Retrieved 6 September 2015.
  17. ^ Wilson B. (4 May 2015). "'Blood cashews': the toxic truth about your favourite nut". The Telegraph. Retrieved 6 September 2015.
  18. ^ "Cultivating Cashew Nuts". ARC-Institute for Tropical and Subtropical Crops, South Africa. Retrieved February 15, 2015.
  19. ^ United States Food and Drug Administration (2024). "Daily Value on the Nutrition and Supplement Facts Labels". FDA. Archived from the original on 2024-03-27. Retrieved 2024-03-28.
  20. ^ National Academies of Sciences, Engineering, and Medicine; Health and Medicine Division; Food and Nutrition Board; Committee to Review the Dietary Reference Intakes for Sodium and Potassium (2019). Oria, Maria; Harrison, Meghan; Stallings, Virginia A. (eds.). Dietary Reference Intakes for Sodium and Potassium. The National Academies Collection: Reports funded by National Institutes of Health. Washington, DC: National Academies Press (US). ISBN 978-0-309-48834-1. PMID 30844154. Archived from the original on 2024-05-09. Retrieved 2024-06-21.
  21. ^ a b c d "Full Report (All Nutrients): 12087, Nuts, cashew nuts, raw, database version SR 27". Agricultural Research Service – United States Department of Agriculture. 2015. Retrieved 6 August 2015.
  22. ^ a b McWilliam V.; Koplin J.; Lodge C.; Tang M.; Dharmage S.; Allen K. (2015). "The prevalence of tree nut allergy: a systematic review". Curr Allergy Asthma Rep. 15 (9): 555. doi:10.1007/s11882-015-0555-8. PMID 26233427.
  23. ^ a b c "Cashew Allergies". Informall Database – funded by European Union. 2010. Archived from the original on 29 October 2010. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  24. ^ "Food Allergies – INFOSAN" (PDF). World Health Organization. 2006.
  25. ^ "Cashew Oil". Smart Kitchen. Retrieved February 15, 2015.
  26. ^ a b "World Agriculture and the Environment", by Jason W. Clay, p. 268
  27. ^ a b Alexander H. Tullo (September 8, 2008). "A Nutty Chemical". Chemical and Engineering News. 86 (36): 26–27. doi:10.1021/cen-v086n033.p026.
  28. ^ a b c "Exposure and Use Data for Cashew Nut Shell Liquid" (PDF). United States Environmental Protection Agency. Archived from the original (PDF) on 2013-05-12. Retrieved 2012-01-12. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  29. ^ Ferri, Enrico (22 May 2011). "Bioresins Derived from Cashew Nutshell Oil". MaterialsToday. Retrieved 7 September 2011.
  30. ^ a b Strom, Stephanie (2014-08-08). "Cashew Juice, the Apple of Pepsi's Eye". The New York Times. ISSN 0362-4331. Retrieved 2015-11-24.
  31. ^ Azam-Ali and Judge (2004). Small-scale cashew nut processing (PDF). FAO, United Nations.
  32. ^ Percival, Robert (1803). An Account of the Island of Ceylon: Its History, Geography, Natural History, with the Manners and Customs of its various Inhabitants. London: C. & R. Baldwin.
  33. ^ Heuzé V., Tran G., Hassoun P., Bastianelli D., Lebas F., 2017. Cashew (Anacardium occidentale) nuts and by-products. Feedipedia, a programme by INRA, CIRAD, AFZ and FAO. https://www.feedipedia.org/node/56

Further reading

  • Jostock, Carolyn. "Cashew Industry" in Encyclopedia of Latin American History and Culture, vol. 2, p. 5. New York: Charles Scribner's Sons 1996.
  • Olaya, Clara Inés. "Cajú/ Marañon/ Merey/Acaiu/Cashew Nut", in Americas 42, no. 3 (1990), 52–53.
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