Abiu
Encyclopedia
Pouteria caimito, the abiu, is a tropical fruit tree originated in the Amazonian region of South America
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

. It will grow an average of 33 feet (10.1 m) high, and can grow as high as 116 feet (35.4 m) under good conditions. Its fruit’s shape varies from round to oval with a point. When ripe, it has smooth bright yellow skin and will have one to four ovate seeds. The inside of the fruit is translucent and white. It has a creamy and jelly-like texture and its taste is similar to the sapodilla — a sweet caramel
Caramel
Caramel is a beige to dark-brown confection made by heating any of a variety of sugars. It is used as a flavoring in puddings and desserts, as a filling in bonbons, and as a topping for ice cream, custard and coffee....

 custard. The abiu tree is part of the Sapotaceae
Sapotaceae
Sapotaceae is a family of flowering plants, belonging to order Ericales. The family includes approximately 800 species of evergreen trees and shrubs in approximately 65 genera . Distribution is pantropical....

 family and is very similar in appearance to the canistel
Canistel
The canistel is an evergreen tree native to southern Mexico and Central America. It is cultivated in other countries, such as Brazil, Taiwan, and Vietnam for its fruit....

.

Distribution

The abiu, Pouteria caimito, is commonly considered as native to the headwaters of the Amazon
Amazon River
The Amazon of South America is the second longest river in the world and by far the largest by waterflow with an average discharge greater than the next seven largest rivers combined...

. It grows wild in the lower eastern part of the Andes
Andes
The Andes is the world's longest continental mountain range. It is a continual range of highlands along the western coast of South America. This range is about long, about to wide , and of an average height of about .Along its length, the Andes is split into several ranges, which are separated...

 from southwestern Venezuela
Venezuela
Venezuela , officially called the Bolivarian Republic of Venezuela , is a tropical country on the northern coast of South America. It borders Colombia to the west, Guyana to the east, and Brazil to the south...

 to 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 also grows around Iquitos
Iquitos
Iquitos is the largest city in the Peruvian rainforest, with a population of 370,962. It is the capital of Loreto Region and Maynas Province.Located on the Amazon River, it is only above sea level, although it is more than from the mouth of the Amazon at Belém on the Atlantic Ocean...

, Peru and it will commonly be found in the Province of Guayas
Guayas
Guayas may refer to:*Ecuador:**Guayas River**Guayas Province**Guayas **Guayas *The fruit of the mamoncillo tree...

 in Ecuador
Ecuador
Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

, where it's sold in the markets. Due to early and widespread cultivation by Amerindians, its original distribution in 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...

, outside the Amazon, is uncertain. In the Amazon basin, it is found to grow heavily in Pará
Pará
Pará is a state in the north of Brazil. It borders the Brazilian states of Amapá, Maranhão, Tocantins, Mato Grosso, Amazonas and Roraima. To the northwest it also borders Guyana and Suriname, and to the northeast it borders the Atlantic Ocean. The capital is Belém.Pará is the most populous state...

 but is also found sparsely in collections from the Atlantic rainforest near Rio de Janeiro
Rio de Janeiro
Rio de Janeiro , commonly referred to simply as Rio, is the capital city of the State of Rio de Janeiro, the second largest city of Brazil, and the third largest metropolitan area and agglomeration in South America, boasting approximately 6.3 million people within the city proper, making it the 6th...

 and Bahia
Bahia
Bahia is one of the 26 states of Brazil, and is located in the northeastern part of the country on the Atlantic coast. It is the fourth most populous Brazilian state after São Paulo, Minas Gerais and Rio de Janeiro, and the fifth-largest in size...

. It can also be found in Colombia
Colombia
Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...

 in areas such as the regions of Caquetá
Caquetá
Caquetá may refer to:* Caquetá River, a river in Colombia* Caquetá Territory, a former territory of Colombia* Caquetá Department, a department of Colombia...

, Meta
Meta
Meta- , is a prefix used in English to indicate a concept which is an abstraction from another concept, used to complete or add to the latter....

 and Vaupes and it is very plentiful in Amazonas
Amazonas (Venezuelan state)
Amazonas State is one of the 23 states into which Venezuela is divided.The state capital is Puerto Ayacucho. The capital until the early 1900s was San Fernando de Atabapo. Although named after the Amazon River, most of the state is drained by the Orinoco. Amazonas State covers a total surface...

, Venezuela. It has also been growing for a very long time in Trinidad
Trinidad
Trinidad is the larger and more populous of the two major islands and numerous landforms which make up the island nation of Trinidad and Tobago. It is the southernmost island in the Caribbean and lies just off the northeastern coast of Venezuela. With an area of it is also the fifth largest in...

.

The abiu grows best in areas that have a year-round moist and a warm climate. It will do well in wet soil. It can now be found throughout most of the Amazon
Amazon Basin
The Amazon Basin is the part of South America drained by the Amazon River and its tributaries that drains an area of about , or roughly 40 percent of South America. The basin is located in the countries of Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela...

. It is a common dooryard tree in the backyards and streets in the city of many Brazilian towns, but it is not usually grown commercially. The abiu habitat
Habitat
* Habitat , a place where a species lives and grows*Human habitat, a place where humans live, work or play** Space habitat, a space station intended as a permanent settlement...

s are nearly all tropical. It will thrive in a place that has a year round warm and moist climate, although it has been known to grow well in Rio de Janeiro, which is a somewhat cooler climate. In Peru it cannot grow above 2000 feet (609.6 m) feet in elevation, but in Colombia it has been found growing up to an elevation of 6000 feet (1,828.8 m).

Other Names

The fruit is known by different regional names in countries of production: in Trinidad it is the yellow star apple (distinct from the star apple
Chrysophyllum cainito
Chrysophyllum cainito is a tropical tree of the family Sapotaceae, native to the lowlands of Central America and the West Indies. It grows rapidly and reaches 20 m in height....

); Colombians know it as the camio, caimito amarillo (again not to be confused with Chrysophyllum cainito
Chrysophyllum cainito
Chrysophyllum cainito is a tropical tree of the family Sapotaceae, native to the lowlands of Central America and the West Indies. It grows rapidly and reaches 20 m in height....

) or madura verde; in Ecuador it is known as the luma or cauje, while in Venezuela it is known as the temare. Other common names are abio, and (in Portugal) abieiro.

Description

The leaves of Pouteria caimito range from oblong
Rectangle
In Euclidean plane geometry, a rectangle is any quadrilateral with four right angles. The term "oblong" is occasionally used to refer to a non-square rectangle...

 to elliptic. The can be anywhere from four to eight inches in length and one and a half to two and a half inches in width.
The flowers on the tree can come either by themselves or in clusters of two to five flowers. They will appear on the leaf axils on long, thin shoots. The flowers are small with four to five petals. The petals are cylindrical and are white to greenish in color. The flowers are hermaphroditic, meaning they are both sexes. The flowers open in the morning and can stay open for about two days.

Fruit

Mature abiu trees produce one hundred to one thousand fruits each year. These have a pale, translucent pulp of a custard consistency that is easily scooped out with a spoon; there may also be a few bits of tougher gel. The seeds are easily removed and are covered with a thin layer of adherent pulp. The fruit has a sweet, mild taste which may have a hint of pineapple
Pineapple
Pineapple is the common name for a tropical plant and its edible fruit, which is actually a multiple fruit consisting of coalesced berries. It was given the name pineapple due to its resemblance to a pine cone. The pineapple is by far the most economically important plant in the Bromeliaceae...

 but is best described as reminiscent of caramel flan
Flan
Crème caramel , flan , or caramel custard is a custard dessert with a layer of soft caramel on top, as opposed to crème brûlée, which is custard with a hard caramel top...

. It is often used in ice cream or eaten out of hand.

Unripe fruits contain a gummy and unpalatable latex
Latex
Latex is the stable dispersion of polymer microparticles in an aqueous medium. Latexes may be natural or synthetic.Latex as found in nature is a milky fluid found in 10% of all flowering plants . It is a complex emulsion consisting of proteins, alkaloids, starches, sugars, oils, tannins, resins,...

 that hardens upon exposure to air. The skin of the ripe fruit is a pale yellow color with a leathery texture and residual latex. Because mature fruits will continue to ripen when picked, the harvest can be timed to allow for transportation to market. However, this period may be as short as five days. Maturation can be recognized by the pale green-to-yellow color break and the ripe fruit can be identified by its yellow coloration and a slight softness.

Varieties

The abiu varies a lot in form, size and quality of the fruit. Some have soft and others firm flesh. Some taste bland while others have very nice flavor. In Colombia along the Putamayo River there is a variety with large, round fruits that produces after four years. In Vaupes, Colombia, there is a variety that will bear fruit just one year after seeding; however, these fruits will be small and contain little pulp.

Season

Abiu may have several flowering periods a year, with potential for both flowers and fruit on the tree at one time. The development time from flower to ripe fruit is approximately three months. The main crop season varies by climate.

In Ecuador, the fruits are in season during the months of March and April. In some Brazilian markets, they are sold from September to April, however at this time they are sparse. In Bahia
Bahia
Bahia is one of the 26 states of Brazil, and is located in the northeastern part of the country on the Atlantic coast. It is the fourth most populous Brazilian state after São Paulo, Minas Gerais and Rio de Janeiro, and the fifth-largest in size...

 there is a short season in February and March. In the small region of suitable subtropical climate in the continental United States, the southern tip of Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

, the fruits ripen from August to October. In Northern Queensland, Australia, the main crop ripens January to March.

Uses

The wood of the abiu tree is dense, heavy, and hard and is used as lumber
Lumber
Lumber or timber is wood in any of its stages from felling through readiness for use as structural material for construction, or wood pulp for paper production....

 in construction.

Culinary

The fruit of the abiu tree is edible and considered one of the best of the sapotes due to having the sweet caramel-like taste of sapodilla
Sapodilla
Manilkara zapota, commonly known as the sapodilla, is a long-lived, evergreen tree native to southern Mexico, Central America and the Caribbean. An example natural occurrence is in coastal Yucatan in the Petenes mangroves ecoregion, where it is a subdominant plant species...

 with a smoother texture. It is commonly eaten out of hand and, although in Colombia
Colombia
Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...

 those eating the fruit this way are advised to grease their lips to keep the gummy latex
Latex
Latex is the stable dispersion of polymer microparticles in an aqueous medium. Latexes may be natural or synthetic.Latex as found in nature is a milky fluid found in 10% of all flowering plants . It is a complex emulsion consisting of proteins, alkaloids, starches, sugars, oils, tannins, resins,...

 from sticking, this hazard can be avoided by selecting fully ripe fruits and scooping out the flesh with a utensil. The tartness of a bit of added lime juice may enhance the flavor, especially when chilled. The melting sweet pulp of the abiu is also used to flavor ice cream and cut into yogurt for a light and delicious breakfast. The subtlety of the flavor limits its utility in more complex confections and salads. Abiu fruit is a significant source of calcium, phosphorus, vitamin A
Vitamin A
Vitamin A is a vitamin that is needed by the retina of the eye in the form of a specific metabolite, the light-absorbing molecule retinal, that is necessary for both low-light and color vision...

, and vitamin C
Vitamin C
Vitamin C or L-ascorbic acid or L-ascorbate is an essential nutrient for humans and certain other animal species. In living organisms ascorbate acts as an antioxidant by protecting the body against oxidative stress...

.

Medicinal

The dark golden-yellow, overripe fruit develops a mucilaginous nature. In Brazil, people use this characteristic to relieve coughs, bronchitis
Bronchitis
Acute bronchitis is an inflammation of the large bronchi in the lungs that is usually caused by viruses or bacteria and may last several days or weeks. Characteristic symptoms include cough, sputum production, and shortness of breath and wheezing related to the obstruction of the inflamed airways...

 and other pulmonary afflictions. Other folk medicine uses are as an astringent, anti-anemic, and anti-inflammatory
Anti-inflammatory
Anti-inflammatory refers to the property of a substance or treatment that reduces inflammation. Anti-inflammatory drugs make up about half of analgesics, remedying pain by reducing inflammation as opposed to opioids, which affect the central nervous system....

 and to relieve fever
Fever
Fever is a common medical sign characterized by an elevation of temperature above the normal range of due to an increase in the body temperature regulatory set-point. This increase in set-point triggers increased muscle tone and shivering.As a person's temperature increases, there is, in...

 and diarrhea
Diarrhea
Diarrhea , also spelled diarrhoea, is the condition of having three or more loose or liquid bowel movements per day. It is a common cause of death in developing countries and the second most common cause of infant deaths worldwide. The loss of fluids through diarrhea can cause dehydration and...

.

Cultivation

The tree grows best in tropical areas and in places that have a warm moist climate all year long, and is less hardy than related sapotes such as the canistel
Canistel
The canistel is an evergreen tree native to southern Mexico and Central America. It is cultivated in other countries, such as Brazil, Taiwan, and Vietnam for its fruit....

 and sapodilla
Sapodilla
Manilkara zapota, commonly known as the sapodilla, is a long-lived, evergreen tree native to southern Mexico, Central America and the Caribbean. An example natural occurrence is in coastal Yucatan in the Petenes mangroves ecoregion, where it is a subdominant plant species...

 (nispero). It prefers wet, slightly acidic soil with high organic content and may suffer from iron deficiency (chlorosis) in alkaline soils. A tree that has just been planted will be fragile and needs protection from wind and cold weather. Only light pruning
Pruning
Pruning is a horticultural practice involving the selective removal of parts of a plant, such as branches, buds, or roots. Reasons to prune plants include deadwood removal, shaping , improving or maintaining health, reducing risk from falling branches, preparing nursery specimens for...

 is necessary and feeding should be frequent, but light.

Propagation

Propagation
Plant propagation
Plant propagation is the process of creating new plants from a variety of sources: seeds, cuttings, bulbs and other plant parts. Plant propagation can also refer to the artificial or natural dispersal of plants.-Sexual propagation :...

 is nearly always by seeds, but the fruit of seedling trees is variable. Fresh seeds need to be planted within a few days if they are to remain viable and will germinate in two to three weeks. The lower branches of the seedling may be pruned after a year and the first fruit can be expected in three years, with substantial yields at five years. Grafting
Grafting
Grafting is a horticultural technique whereby tissues from one plant are inserted into those of another so that the two sets of vascular tissues may join together. This vascular joining is called inosculation...

, budding and air layering can be used to propagate superior strains and advance the production schedule.

Pests and diseases

There is little commercial value to the fruit in its native range because it is often damaged by small insects. In Brazil, the main pest that destroys the fruit is thought to be the fruit fly
Drosophila melanogaster
Drosophila melanogaster is a species of Diptera, or the order of flies, in the family Drosophilidae. The species is known generally as the common fruit fly or vinegar fly. Starting from Charles W...

. Thrips are known to attack buds, leaves and young fruits, but in exotic locations abiu can be relatively pest-free, especially if fruit is harvested at maturity and ripened off the tree.

Morton's book was the original basis for this article and uncited information can be assumed to come from that source.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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