|Branch with leaves and fruit|
|Current range of native and naturalized A. cherimola|
Annona pubescens Salisb.
The cherimoya (Annona cherimola), also spelled chirimoya and called chirimuya by the Inca people, is a species of edible fruit-bearing plant in the genus Annona, from the family Annonaceae, which includes the closely related sweetsop and soursop. The plant has long been believed to be native to Colombia, Ecuador, Peru, Bolivia, and Chile, with cultivation practiced in the Andes and Central America, although a recent hypothesis postulates Central America as the origin instead, because many of the plant's wild relatives occur in this area.
Cherimoya is grown in tropical regions throughout the world, as well as in Spain, mostly in the southern provinces of Granada and Málaga, where it is widely consumed. It is also grown in Calabria in southern Italy. American writer Mark Twain called the cherimoya "the most delicious fruit known to men". The creamy texture of the flesh gives the fruit its secondary name, the custard apple.
The name is derived from the Quechua word chirimuya, which means "cold seeds". The plant grows at high altitudes, where the weather is colder, and the seeds will germinate at higher altitudes. In Bolivia, Peru, Chile, Ecuador, and Colombia, the fruit is commonly known as chirimoya (spelled according to the rules of the Spanish language).
Mature branches are sappy and woody. Young branches and twigs have a matting of short, fine, rust-colored hairs. The leathery leaves are 5–25 centimetres (2.0–9.8 in) long 3–10 centimetres (1.2–3.9 in) wide, and mostly elliptic, pointed at the ends and rounded near the leaf stalk. When young, they are covered with soft, fine, tangled, rust-colored hairs. When mature, the leaves bear hairs only along the veins on the undersurface. The tops are hairless and a dull medium green with paler veins, backs velvety, dull grey-green with raised pale green veins. New leaves are whitish below.
Cherimoya trees bear very pale green, fleshy flowers. They are 3 centimetres (1.2 in) long with a very strong fruity odor. Each flower has three outer, greenish, fleshy, oblong, downy petals and three smaller, pinkish inner petals with yellow or brown finely matted hairs outside, whitish with purple spots and many stamens on the inside. Flowers appear on the branches opposite to the leaves, solitary or in pairs or groups of three, on flower stalks that are covered densely with fine rust-colored hairs, 8–12 millimetres (0.31–0.47 in) long. Buds are 15–18 millimetres (0.59–0.71 in) long and 5–8 millimetres (0.20–0.31 in) wide at the base. The pollen is shed as permanent tetrads.
The edible cherimoya fruit is a large, green, conical or heart-shaped compound fruit, 10–20 centimetres (3.9–7.9 in) long, with diameters of 5–10 centimetres (2.0–3.9 in), and skin that gives the appearance of having overlapping scales or knobby warts. They ripen to brown with a fissured surface in late winter and early spring; they weigh on the average 150–500 grams (5.3–17.6 oz), but extra large specimens may weigh 2.7 kilograms (6.0 lb) or more.
Cherimoya fruits are commercially classified according to degree of surface irregularity, as follows: Lisa, almost smooth, difficult to discern areoles; Impresa, with "fingerprint" depressions; Umbonata, with rounded protrusions at the apex of each areole; Mamilata with fleshy, nipple-like protrusions; or Tuberculata, with conical protrusions having wart-like tips.
The flesh of the cherimoya contains numerous hard, inedible, black, bean-like, glossy seeds, 1–2 centimetres (0.39–0.79 in) long and about half as wide. Cherimoya seeds are poisonous if crushed open. Like other members of the family Annonaceae, the entire plant contains small amounts of neurotoxic acetogenins, such as annonacin, which appear to be linked to atypical parkinsonism in Guadeloupe. Moreover, an extract of the bark can induce paralysis if injected.
Distribution and habitat
Widely cultivated now, Annona cherimola is believed to have originated in the Andes of South America at altitudes of 700 to 2,400 metres (2,300 to 7,900 ft), although an alternative hypothesis postulates Central America as the origin instead, because many of the plant's wild relatives occur in this area. From there it was taken by Europeans to various parts of the tropics. Unlike other Annona species, A. cherimola has not successfully naturalized in West Africa, and Annona glabra is often misidentified as this species in Australasia.
- Current (naturalized and native)
- Caribbean: Florida, Cuba, Dominican Republic, Haiti, Jamaica, Puerto Rico
- Central America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
- Northern South America: Guyana, Venezuela
- Southern North America: Mexico
- Western South America: Bolivia, Colombia, Ecuador, Peru
- Southern South America: Chile, Brazil
- Palearctic: Algeria, Egypt, Libya, France, Italy, Spain, Madeira, Azores
- Afrotropic: Eritrea, Somalia, Tanzania,
- Indomalaya: India, Singapore, Thailand
The flowers of A. cherimola are hermaphroditic and have a mechanism to avoid self-pollination. The short-lived flowers open as female, then progress to a later, male stage in a matter of hours. This requires a separate pollinator that not only can collect the pollen from flowers in the male stage, but also deposit it in flowers in the female stage. Studies of which insect(s) serve as the natural pollinator in the cherimoya's native region have been inconclusive; some form of beetle is suspected.
Quite often, the female flower is receptive in the early part of the first day, but pollen is not produced in the male stage until the late afternoon of the second day. Honey bees are not good pollinators of this plant, for example, because their bodies are too large to fit between the fleshy petals of the female flower. Female flowers have the petals only partially separated, and the petals separate widely when they become male flowers. So, the bees pick up pollen from the male flowers, but are unable to transfer this pollen to the female flowers. The small beetles which are suspected to pollinate cherimoya in its land of origin must therefore be much smaller than bees.
For fruit production outside the cherimoya's native region, cultivators must either rely upon the wind to spread pollen in dense orchards or else use hand pollination. Pollinating by hand requires a paint brush. Briefly, to increase fruit production, growers collect the pollen from the male plants with the brush, and then transfer it to the female flowers immediately or store it in the refrigerator overnight. Cherimoya pollen has a short life, but it can be extended with refrigeration.
The evaluation of 20 locations in Loja Province, Ecuador, indicated certain growing preferences of wild cherimoya, including altitude between 1,500 and 2,000 metres (4,900 and 6,600 ft), optimum annual temperature range between 18 and 20 °C (64 and 68 °F), annual precipitation between 800 and 1,000 millimetres (31 and 39 in), and soils with high sand content and slightly acidic properties with pH between 5 and 6.5.
In Western horticulture, growers are often advised to grow cherimoya in full sun, while the plant has been considered shade-tolerant in Japan. In 2001, a study conducted by Kyoto University showed shading of 50–70% sunlight was adequate to obtain an optimal light environment.
The cherimoya of the Granada-Málaga tropical coast in Spain is a fruit of the cultivar 'Fino de Jete' with the EU's protected designation of origin appellation. 'Fino de Jete' fruits have skin type Impressa and are smooth or slightly concave at the edges. The fruit is round, oval, heart-shaped, or kidney-shaped. The seeds are enclosed in the carpels and so do not detach easily. The flavour balances intense sweetness with slight acidity and the soluble sugar content exceeds 17° Bx. This variety is prepared and packed in the geographical area because "it is a very delicate perishable fruit and its skin is very susceptible to browning caused by mechanical damage, such as rubbing, knocks, etc. The fruit must be handled with extreme care, from picking by hand in the field to packing in the warehouse, which must be carried out within 24 hours. Repacking or further handling is strictly forbidden."
Annona cherimola, preferring the cool Andean altitudes, readily hybridizes with other Annona species. A hybrid with A. squamosa called atemoya has received some attention in West Africa, Australia, Brazil, and Florida.
The tree thrives throughout the tropics at altitudes of 1,300 to 2,600 m (4,300 to 8,500 ft). Though sensitive to frost, it must have periods of cool temperatures or the tree will gradually go dormant. The indigenous inhabitants of the Andes say the cherimoya cannot tolerate snow.
In the Mediterranean region, it is cultivated mainly in southern Spain and Portugal, where it was introduced between 1751 and 1797, after which it was carried to Italy, but now can also be found in several countries of Africa, the Middle East, and Oceania. It is cultivated throughout the Americas, including Hawaii since 1790 and California, where it was introduced in 1871.
Large fruits which are uniformly green, without cracks or mostly browned skin, are best. The optimum temperature for storage is 8–12 °C (46–54 °F), depending on cultivar, ripeness stage, and duration, with an optimum relative humidity of 90–95%. Unripe cherimoyas will ripen at room temperature, when they will yield to gentle pressure. Exposure to Ethylene as a plant hormone#ethylene (100 ppm for one to two days) accelerates ripening of mature green cherimoya and other Annona fruits; they can ripen in about five days if kept at 15 to 20 °C (59 to 68 °F). Ethylene removal can also be helpful in slowing the ripening of mature green fruits.
Raw cherimoya fruit is 79% water, 18% carbohydrate, 2% protein, and 1% fat (table). In a 100-gram reference amount providing 75 calories, cherimoya is a rich source (20% or more of the Daily Value, DV) of vitamin B6 and a moderate source (10–19% DV) of vitamin C, dietary fiber, and riboflavin (table).
|Nutritional value per 100 g (3.5 oz)|
|Energy||313 kJ (75 kcal)|
|Dietary fiber||3 g|
|Pantothenic acid (B5)|
|†Percentages are roughly approximated using US recommendations for adults. |
Source: USDA FoodData Central
"The pineapple, the mangosteen, and the cherimoya", wrote the botanist Berthold Carl Seemann, "are considered the finest fruits in the world, and I have tasted them in those localities where they are supposed to attain their highest perfection – the pineapple in Guayaquil, the mangosteen in the Indian Archipelago, and the cherimoya on the slopes of the Andes, and if I were asked which would be the best fruit, I would choose without hesitation, cherimoya. Its taste, indeed, surpasses that of every other fruit, and Haenke was quite right when he called it the masterpiece of Nature."
Fruits require storage at 50 °F (10 °C) to inhibit softening and maintain eating quality. Different varieties have different flavors, textures, and shapes. The flavor of the flesh ranges from mellow sweet to tangy or acidic sweet, with variable suggestions of pineapple, banana, pear, papaya, strawberry or other berry, and apple, depending on the variety. The ripened flesh is creamy white. When ripe, the skin is green and gives slightly to pressure. Some characterize the fruit flavor as a blend of banana, pineapple, papaya, peach, and strawberry. The fruit can be chilled and eaten with a spoon, which has earned it another nickname, the "ice cream fruit". In Peru and Chile, it is commonly used in ice creams and yogurt.
When the fruit is ripe and still has the fresh, fully mature green-yellow skin color, the texture is like that of a soft-ripe pear and papaya. When the skin turns brown at room temperature, the fruit is no longer good for human consumption.
Plantation in south Andalucia
- List of cherimoya cultivars
- Atemoya (a cross of A. squamosa and A. cherimola)
- Pawpaw (Asimina spp.)
- Soursop (Annona muricata)
- Sugar-apple (Annona squamosa)
- White sapote (Casimiroa edulis) – sometimes mislabeled as cherimoya
- Wild soursop (Annona senegalensis)
- Wild sweetsop (Annona reticulata)
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|Look up cherimoya in Wiktionary, the free dictionary.|
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- "Annona cherimola Miller". Integrated Taxonomic Information System. Retrieved 17 March 2008.
- California Rare Fruit Growers article on cherimoya