Vitellaria

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Vitellaria
Vitellaria paradoxa MS 6563.JPG
Shea tree
Vitellaria paradoxa MS4195.JPG
Shea nuts
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Sapotaceae
Subfamily: Sapotoideae
Genus: Vitellaria
C.F.Gaertn.
Species:
V. paradoxa
Binomial name
Vitellaria paradoxa
C.F.Gaertn.
Synonyms

Butyrospermum paradoxa
Butyrospermum parkii

Vitellaria paradoxa (formerly Butyrospermum parkii), commonly known as shea tree, shi tree ( /ˈʃ(ə)/ ), or vitellaria, is a tree of the family Sapotaceae. It is the only species in the genus Vitellaria, [2] and is indigenous to Africa.

The shea fruit consists of a thin, tart, nutritious pulp that surrounds a relatively large, oil-rich seed from which shea butter is extracted. It is a deciduous tree usually 7–15 m (23–49 ft) tall, but has reached 25 m (82 ft) and a trunk diameter of 2 m (6.6 ft).

The shea tree is a traditional African food plant. It has been claimed to have potential to improve nutrition, boost food supply in the "annual hungry season", [3] foster rural development, and support sustainable land care. [4]

Description

The tree starts bearing its first fruit when it is 10 to 15 years old; full production is attained when the tree is about 20 to 30 years old. It then produces nuts for up to 200 years.

The fruits resemble large plums 4 to 8 centimetres long weighing between 10 and 57 grams each. [5] These fruits take 4 to 6 months to ripen; the average yield is 15 to 20 kg (33 to 44 lb) of fresh fruit per tree, with optimum yields up to 45 kilograms (99 pounds). Each kilogram of fruit gives approximately 400 grams (14 ounces) of dry seeds. The fruit is edible.

Subspecies

Distribution and habitat

Distribution of shea trees Vitellaria paradoxa distribution.png
Distribution of shea trees

The shea tree grows naturally in the wild in the dry savannah belt of West and South from Senegal in the west to Sudan and South Sudan in the east, and onto the foothills of the Ethiopian highlands. It occurs in 19 countries across the African continent, namely Benin, Burkina Faso, Cameroon, Central African Republic, Chad, Ethiopia, Ghana, Guinea Bissau, Ivory Coast, Mali, Niger, Nigeria, Senegal, Sierra Leone, South Sudan, Sudan, Togo, Uganda, Democratic Republic of the Congo, and Guinea. The habitat area extends over more than 5,000 kilometres (3,100 mi). [8]

A testa found at the site of the medieval village of Saouga is evidence of shea butter production by the 14th century. [9]

Uses

Shea butter has many uses and may or may not be refined. In the West it is most commonly used as an emollient in cosmetics and is less commonly used in food. Throughout Africa it is used extensively for food, is a major source of dietary fat, and for medicinal purposes. In Ghana and Nigeria, shea butter is a major ingredient for making the African black soap.

Preparing a sandwich with fried shea tree caterpillars at the Boromo bus station in Burkina Faso. 2015.09-433-015ap(camjpg) Cirina butyrospermi(Saturniidae,Lepidoptera),larva(caterpillar),'chitoumou'='chenille de karite',sheabutter,bread Boromo,BF thu03sep2015-1359h.jpg
Preparing a sandwich with fried shea tree caterpillars at the Boromo bus station in Burkina Faso.

The edible protein-rich caterpillars of the moth Cirina butyrospermi which feed solely on its leaves are widely collected [10] and eaten raw, dried or fried.

Composition of shea butter

Leaves of a shea nut tree Leaves of Sheanut tree.JPG
Leaves of a shea nut tree

Shea butter extract is a complex fat that in addition to many nonsaponifiable components (substances that cannot be fully converted into soap by treatment with alkali) contains the following fatty acids: oleic acid (40–60%), stearic acid (20–50%), linoleic acid (3–11%), palmitic acid (2–9%), linolenic acid (<1%) and arachidic acid (<1%). [11] It also contains the vitamins A, E and F.[ citation needed ]

Etymology

The common name is shíyiri (in N'Ko: ߛ߭ߌ߭ߦߌߙߌ) or shísu (ߛ߭ߌ߭ߛߎ, lit. "shea tree") in the Bambara language of Mali. This is the origin of the English word, whose primary pronunciation is /ʃ/ (rhyming with "tea"), although the pronunciation /ʃ/ (rhyming with "day") is common and is listed second in major dictionaries. The tree is called ghariti in the Wolof language of Senegal, which is the origin of the French name of the tree and the butter, karité.

In Hausa language the tree is called Kaɗe or Kaɗanya. Indeed, the shea tree is so indispensable in Mole-Dagbang culinary and ethno-botanical practices that the Northern Ghanaian city of Tamale etymologically derives its name from the more traditional Dagomba name 'Tama-yile' (meaning 'Home of Shea nuts').

The tree was formerly classified in the genus Butyrospermum, meaning "butter seed". The species name parkii honors Scottish explorer Mungo Park, who learned of the tree while exploring Senegal. Park's Scottish origin is reflected in the English word shea, with a final -ea.[ further explanation needed ]

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<i>Detarium senegalense</i> Species of tree

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<span class="mw-page-title-main">Shea nut and butter production in Burkina Faso</span>

Vitellaria paradoxa is extremely important in Burkina Faso. Termed "women's gold" by Burkinabé villagers, the nuts of shea tree can be collected and processed by crushing and grinding to yield shea butter, which is widely used in soap and in cosmetics as a moisturizer, salve, or lotion. Shea butter is also edible and may be used in food preparation; it is sometimes used in the manufacture of chocolate. The bark of the tree is also used as an ingredient in traditional medicines and the shell of nut is said to be able to repel mosquitoes and is also said to protect existing trees.

<i>Detarium microcarpum</i> Species of flowering plant

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<i>Pentaclethra macrophylla</i> Species of plant

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References

  1. Makerere University Institute of Environment and Natural Resources. 1998. Vitellaria paradoxa. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. Downloaded on 14 June 2013.
  2. Vitellaria paradoxa. AgroForestry Tree Database. World Agroforestry Centre.
  3. E.T. Masters; J.A. Yidana; P.N. Lovett. "Trade and sustainable forest management". FAO.org. Retrieved 2010-09-14.
  4. National Research Council (2006-10-27). "Shea". Lost Crops of Africa: Volume II: Vegetables. Lost Crops of Africa. Vol. 2. National Academies Press. ISBN   978-0-309-10333-6 . Retrieved 2008-07-15.
  5. Honfo, Fernande; H. N., Akissoe; Linnemann, Anita; Soumanou Mohamed; Boekel, Martinus (2014). "Nutritional Composition of Shea Products and Chemical Properties of Shea Butter: A Review". Critical Reviews in Food Science and Nutrition. 54 (5): 673–686. doi:10.1080/10408398.2011.604142. PMID   24261539. S2CID   6345738.
  6. Gwali, Samson; Nakabonge, Grace; Okullo, John Bosco Lamoris; Eilu, Gerald; Nyeko, Philip; Vuzi, Peter (2012-09-14). "Morphological variation among shea tree (Vitellaria paradoxa subsp. nilotica) 'ethnovarieties' in Uganda". Genetic Resources and Crop Evolution. 59 (8). Springer Science and Business Media LLC: 1883–1898. doi:10.1007/s10722-012-9905-8. ISSN   0925-9864. S2CID   207147736.
  7. Buyinza, J.; Okullo, J. "Threats to conservation of Vitellaria paradoxa subsp. nilotica (Shea Butter) Tree in Nakasongola district, Central Uganda". AGRIS: International Information System for the Agricultural Science and Technology. Retrieved 2022-08-22.
  8. Masters, E. T.; Yidana, J. A.; Lovett, P. N. (April 2004). "Rendre la gestion plus rationnelle grâce au commerce: les produits du karité en Afrique". Unasylva. 55 (219). Food and Agriculture Organization: 46–52.
  9. Neumann, Katharina; Kahlheber, Stefanie; Uebel, Dirk (1998). "Remains of woody plants from Saouga, a medieval west African village". Vegetation History and Archaeobotany. 7 (2): 57–77. doi:10.1007/BF01373925. S2CID   128820299.
  10. Nikiema, A. & Umali, B.E. "Vitellaria paradoxa C.F. Gaertn.". - In: Van der Vossen, H.A.M. & Mkamilo, G.S. (eds.) "Plant resources of tropical Africa 14 : vegetable oils". - Wageningen : PROTA Foundation; Leiden : Backhuys; Wageningen : CTA, 2007. - 236 p. - p.182-187.
  11. Davrieux, F., Allal, F., Piombo, G., Kelly, B., Okulo, J. B., Thiam, M., Diallo, O. B. & Bouvet, J.-M. (2010) (2010). "Near Infrared Spectroscopy for High-Throughput Characterization of Shea Tree (Vitellaria paradoxa) Nut Fat Profiles. Journal of Agricultural and Food Chemistry, 58, 7811-7819". Journal of Agricultural and Food Chemistry. 58 (13): 7811–7819. doi:10.1021/jf100409v. PMID   20518501.{{cite journal}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)