''Vitellaria paradoxa'' (formerly ''Butyrospermum parkii''), commonly known as shea tree, shi tree (), or vitellaria, is a tree of the family
Sapotaceae
240px, '' Madhuca longifolia'' var. ''latifolia'' in Narsapur, Medak district, India
The Sapotaceae are a family (biology), family of flowering plants belonging to the order (biology), order Ericales. The family includes about 800 species of ev ...
. It is the only species in the genus ''Vitellaria'',
[''Vitellaria paradoxa''.]
AgroForestry Tree Database. World Agroforestry Centre. and is indigenous to
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...
.
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 (6.5 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", foster rural development, and support sustainable land care.
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. These fruits take 4 to 6 months to ripen; the average yield is 15 to 20 kilograms (33-44 lbs.) of fresh fruit per tree, with optimum yields up to 45 kilograms (99 lbs.). Each kilogram of fruit gives approximately 400 grams (14 oz.) of dry seeds.
Subspecies
*''Vitellaria paradoxa'' subsp. ''nilotica'' -Cameroon, Mali, and Burkina Faso
Distribution and habitat
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
Benin ( , ; french: Bénin , ff, Benen), officially the Republic of Benin (french: République du Bénin), and formerly Dahomey, is a country in West Africa. It is bordered by Togo to the west, Nigeria to the east, Burkina Faso to the nort ...
,
Burkina Faso
Burkina Faso (, ; , ff, 𞤄𞤵𞤪𞤳𞤭𞤲𞤢 𞤊𞤢𞤧𞤮, italic=no) is a landlocked country in West Africa with an area of , bordered by Mali to the northwest, Niger to the northeast, Benin to the southeast, Togo and Ghana to ...
,
Cameroon
Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the C ...
,
Central African Republic
The Central African Republic (CAR; ; , RCA; , or , ) is a landlocked country in Central Africa. It is bordered by Chad to the north, Sudan to the northeast, South Sudan to the southeast, the DR Congo to the south, the Republic of th ...
,
Chad,
Ethiopia
Ethiopia, , om, Itiyoophiyaa, so, Itoobiya, ti, ኢትዮጵያ, Ítiyop'iya, aa, Itiyoppiya officially the Federal Democratic Republic of Ethiopia, is a landlocked country in the Horn of Africa. It shares borders with Eritrea to the ...
,
Ghana
Ghana (; tw, Gaana, ee, Gana), officially the Republic of Ghana, is a country in West Africa. It abuts the Gulf of Guinea and the Atlantic Ocean to the south, sharing borders with Ivory Coast in the west, Burkina Faso in the north, and To ...
,
Guinea Bissau,
Ivory Coast,
Mali
Mali (; ), officially the Republic of Mali,, , ff, 𞤈𞤫𞤲𞥆𞤣𞤢𞥄𞤲𞤣𞤭 𞤃𞤢𞥄𞤤𞤭, Renndaandi Maali, italics=no, ar, جمهورية مالي, Jumhūriyyāt Mālī is a landlocked country in West Africa. Mal ...
,
Niger
)
, official_languages =
, languages_type = National languages[Nigeria
Nigeria ( ), , ig, Naìjíríyà, yo, Nàìjíríà, pcm, Naijá , ff, Naajeeriya, kcg, Naijeriya officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf o ...](_blank)
,
Senegal
Senegal,; Wolof: ''Senegaal''; Pulaar: 𞤅𞤫𞤲𞤫𞤺𞤢𞥄𞤤𞤭 (Senegaali); Arabic: السنغال ''As-Sinighal'') officially the Republic of Senegal,; Wolof: ''Réewum Senegaal''; Pulaar : 𞤈𞤫𞤲𞤣𞤢𞥄𞤲𞤣𞤭 ...
,
Sierra Leone
Sierra Leone,)]. officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered by Liberia to the southeast and Guinea surrounds the northern half of the nation. Covering a total area of , Sierr ...
,
South Sudan
South Sudan (; din, Paguot Thudän), officially the Republic of South Sudan ( din, Paankɔc Cuëny Thudän), is a landlocked country in East Africa. It is bordered by Ethiopia, Sudan, Central African Republic, Democratic Republic of the ...
,
Sudan,
Togo
Togo (), officially the Togolese Republic (french: République togolaise), is a country in West Africa. It is bordered by Ghana to the west, Benin to the east and Burkina Faso to the north. It extends south to the Gulf of Guinea, where its c ...
,
Uganda
}), is a landlocked country in East Africa. The country is bordered to the east by Kenya, to the north by South Sudan, to the west by the Democratic Republic of the Congo, to the south-west by Rwanda, and to the south by Tanzania. The sou ...
,
Democratic Republic of the Congo
The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in ...
, and
Guinea. The habitat area in total spans as wide as 5,000 square kilometres.
A
testa found at the site of the medieval village of Saouga is evidence of shea butter production by the 14th century.
Uses
Shea butter has many uses and may or may not be refined. In the West it is most commonly used as an
emollient
A moisturizer, or emollient, is a cosmetic preparation used for protecting, moisturizing, and lubricating the skin. These functions are normally performed by sebum produced by healthy skin. The word "emollient" is derived from the Latin verb ''m ...
in
cosmetics
Cosmetics are constituted mixtures of chemical compounds derived from either natural sources, or synthetically created ones. Cosmetics have various purposes. Those designed for personal care and skin care can be used to cleanse or protect ...
and is less commonly used in food. Throughout Africa it is used extensively for food, is a major source of dietary
fat
In nutrition, biology, and chemistry, fat usually means any ester of fatty acids, or a mixture of such compounds, most commonly those that occur in living beings or in food.
The term often refers specifically to triglycerides (triple est ...
, and for medicinal purposes. In Ghana and Nigeria, shea butter is a major ingredient for making the
African black soap.
The edible protein-rich caterpillars of the moth ''
Cirina butyrospermi'' which feed solely on its leaves are widely collected
[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.] and eaten raw, dried or fried.
Composition of shea butter
Shea butter extract is a complex fat that in addition to many
nonsaponifiable components (substances that cannot be fully converted into
soap
Soap is a salt of a fatty acid used in a variety of cleansing and lubricating products. In a domestic setting, soaps are surfactants usually used for washing, bathing, and other types of housekeeping. In industrial settings, soaps are use ...
by treatment with
alkali) contains the following
fatty acids
In chemistry, particularly in biochemistry, a fatty acid is a carboxylic acid with an aliphatic chain, which is either saturated and unsaturated compounds#Organic chemistry, saturated or unsaturated. Most naturally occurring fatty acids have an B ...
:
oleic acid
Oleic acid is a fatty acid that occurs naturally in various animal and vegetable fats and oils. It is an odorless, colorless oil, although commercial samples may be yellowish. In chemical terms, oleic acid is classified as a monounsaturated omeg ...
(40–60%),
stearic acid (20–50%),
linoleic acid
Linoleic acid (LA) is an organic compound with the formula COOH(CH2)7CH=CHCH2CH=CH(CH2)4CH3. Both alkene groups are ''cis''. It is a fatty acid sometimes denoted 18:2 (n-6) or 18:2 ''cis''-9,12. A linoleate is a salt or ester of this acid.
...
(3–11%),
palmitic acid
Palmitic acid (hexadecanoic acid in IUPAC nomenclature) is a fatty acid with a 16-carbon chain. It is the most common saturated fatty acid found in animals, plants and microorganisms.Gunstone, F. D., John L. Harwood, and Albert J. Dijkstra. The L ...
(2–9%),
linolenic acid (<1%) and
arachidic acid (<1%).
. It also contains the vitamins A, E and F.
Etymology
The common name is ''shíyiri'' (in
N'Ko: ) or ''shísu'' (, lit. "shea tree") in the
Bambara language of
Mali
Mali (; ), officially the Republic of Mali,, , ff, 𞤈𞤫𞤲𞥆𞤣𞤢𞥄𞤲𞤣𞤭 𞤃𞤢𞥄𞤤𞤭, Renndaandi Maali, italics=no, ar, جمهورية مالي, Jumhūriyyāt Mālī is a landlocked country in West Africa. Mal ...
. This is the origin of the English word, whose primary pronunciation is (rhyming with "tea"), although the pronunciation (rhyming with "day") is common and is listed second in major dictionaries. The tree is called ''ghariti'' in the
Wolof language
Wolof (; Wolofal: ) is a language of Senegal, Mauritania, and the Gambia, and the native language of the Wolof people. Like the neighbouring languages Serer language, Serer and Fula language, Fula, it belongs to the Senegambian languages, Senegam ...
of
Senegal
Senegal,; Wolof: ''Senegaal''; Pulaar: 𞤅𞤫𞤲𞤫𞤺𞤢𞥄𞤤𞤭 (Senegaali); Arabic: السنغال ''As-Sinighal'') officially the Republic of Senegal,; Wolof: ''Réewum Senegaal''; Pulaar : 𞤈𞤫𞤲𞤣𞤢𞥄𞤲𞤣𞤭 ...
, 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
Senegal,; Wolof: ''Senegaal''; Pulaar: 𞤅𞤫𞤲𞤫𞤺𞤢𞥄𞤤𞤭 (Senegaali); Arabic: السنغال ''As-Sinighal'') officially the Republic of Senegal,; Wolof: ''Réewum Senegaal''; Pulaar : 𞤈𞤫𞤲𞤣𞤢𞥄𞤲𞤣𞤭 ...
. Park's Scottish origin is reflected in the English word shea, with a final -ea.
References
External links
Vitellaria paradoxa.In: Brunken, U., et al. 2008. ''West African Plants — A Photo Guide''. Forschungsinstitut Senckenberg, Frankfurt/Main.
{{Authority control
Crops originating from Africa
Flora of Ivory Coast
Trees of Africa
Cosmetics chemicals
Sapotoideae
Monotypic Ericales genera
Sapotaceae genera