Apricot | |
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Apricot and its cross-section | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Rosales |
Family: | Rosaceae |
Genus: | Prunus |
Subgenus: | Prunus subg. Prunus |
Section: | Prunus sect. Armeniaca (Scop.) Koch |
Type species | |
Prunus armeniaca L. | |
Species | |
See text. |
An apricot ( US: /ˈæprɪkɒt/ ⓘ , UK: /ˈeɪprɪkɒt/ ⓘ ) is a fruit, or the tree that bears the fruit, of several species in the genus Prunus .
Usually an apricot is from the species P. armeniaca , but the fruits of the other species in Prunus sect. Armeniaca are also called apricots. [1]
Apricot first appeared in English in the 16th century as abrecock from the Middle French aubercot or later abricot, [2] from Spanish albaricoque and Catalan a(l)bercoc, in turn from Arabic الْبَرْقُوق (al-barqūq, "the plums"), from Byzantine Greek βερικοκκίᾱ (berikokkíā, "apricot tree"), derived from late Greek πραικόκιον (praikókion, "apricot") from Latin [persica ("peach")] praecocia (praecoquus, "early ripening"). [3] [4] [5]
The apricot is a small tree, 8–12 metres (26–39 feet) tall, with a trunk up to 40 centimetres (16 inches) in diameter and a dense, spreading canopy. The leaves are ovate, 5–9 cm (2–3+1⁄2 in) long, and 4–8 cm (1+1⁄2–3 in) wide, with a rounded base, a pointed tip, and a finely serrated margin. The flowers are 2–4.5 cm (3⁄4–1+3⁄4 in) in diameter, with five white to pinkish petals; they are produced singly or in pairs in early spring before the leaves. The fruit is a drupe (stonefruit) similar to a small peach, 1.5–2.5 cm (1⁄2–1 in) diameter (larger in some modern cultivars), from yellow to orange, often tinged red on the side most exposed to the sun; its surface can be smooth (botanically described as: glabrous) or velvety with very short hairs (botanically: pubescent). The flesh is usually succulent, but dry in some species such as P. sibirica . Its taste can range from sweet to tart. The single seed or "kernel" is enclosed in a hard shell, often called a "stone", with a grainy, smooth texture except for three ridges running down one side. [6] [7]
Apricots contain various phytochemicals, such as provitamin A beta-carotene and polyphenols, including catechins and chlorogenic acid. [8] Taste and aroma compounds include sucrose, glucose, organic acids, terpenes, aldehydes and lactones. [9]
Apricots are species belonging to Prunus sect. Armeniaca. The taxonomic position of P. brigantina is disputed. It is grouped with plum species according to chloroplast DNA sequences, [10] but more closely related to apricot species according to nuclear DNA sequences. [11]
The most commonly cultivated apricot P. armeniaca was known in Armenia during ancient times, and has been cultivated there for so long that it was previously thought to have originated there, hence the epithet of its scientific name. [14] However, this is not supported by genetic studies, which instead confirm the hypothesis proposed by Nikolai Vavilov that domestication of P. armeniaca occurred in Central Asia and China. [15] [16] The domesticated apricot then diffused south to South Asia, [15] west to West Asia (including Armenia), Europe and North Africa, and east to Japan. [16]
Japanese apricot P. mume is another widely cultivated apricot species, usually for ornamental uses. Despite the common name, it originated from China, and was introduced to Japan in ancient times.
Apricots have a chilling requirement of 300 to 900 chilling units. A dry climate is good for fruit maturation. The tree is slightly more cold-hardy than the peach, tolerating winter temperatures as cold as −30 °C (−22 °F) or lower if healthy. They are hardy in USDA zones 5 through 8. A limiting factor in apricot culture is spring frosts: They tend to flower very early (in early March in western Europe), meaning spring frost can kill the flowers. Furthermore, the trees are sensitive to temperature changes during the winter season. In China, winters can be very cold, but temperatures tend to be more stable than in Europe and especially North America, where large temperature swings can occur in winter. Hybridization with the closely related Prunus sibirica (Siberian apricot; hardy to −50 °C (−58 °F) but with less palatable fruit) offers options for breeding more cold-tolerant plants. [17] They prefer well-drained soils with a pH of 6.0 to 7.0. [18]
Apricot cultivars are usually grafted onto plum or peach rootstocks. The cultivar scion provides the fruit characteristics, such as flavor and size, but the rootstock provides the growth characteristics of the plant. Some of the more popular US apricot cultivars are 'Blenheim', 'Wenatchee Moorpark', 'Tilton', and 'Perfection'. Some apricot cultivars are self-compatible, so do not require pollinizer trees; others are not: 'Moongold' and 'Sungold', for example, must be planted in pairs so they can pollinate each other. [19]
Hybridisors have created what is known as a "black apricot" or "purple apricot", ( Prunus dasycarpa ), a hybrid of an apricot and the cherry plum ( Prunus cerasifera ). Other apricot–plum hybrids are variously called plumcots, apriplums, pluots, or apriums. [20]
Apricot production – 2020 | |
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Country | 2020 (millions of tonnes) |
Turkey | 0.83 |
Uzbekistan | 0.53 |
Iran | 0.33 |
Algeria | 0.19 |
Italy | 0.17 |
World | 3.72 |
Source: FAOSTAT, United Nations [21] |
Apricots are susceptible to various diseases whose relative importance differs in the major production regions as a consequence of their climatic differences. For example, hot weather as experienced in California's Central Valley often causes pit burn, a condition of soft and brown fruit around the pit. [22] Bacterial diseases include bacterial spot and crown gall. Fungal diseases include brown rot caused by Monilinia fructicola : infection of the blossom by rainfall leads to "blossom wilt" [23] whereby the blossoms and young shoots turn brown and die; the twigs die back in a severe attack; brown rot of the fruit is due to Monilinia infection later in the season. Dieback of branches in the summer is attributed to the fungus Eutypa lata , where examination of the base of the dead branch reveals a canker surrounding a pruning wound. [24] Other fungal diseases are black knot, Alternaria spot and fruit rot, and powdery mildew. [25] Unlike peaches, apricots are not affected by leaf curl, and bacterial canker (causing sunken patches in the bark, which then spread and kill the affected branch or tree) and silver leaf are not serious threats, which means that pruning in late winter is considered safe. [23]
Due to their natural amygdalin content culinary uses for the kernel are limited. Oil made from apricot kernels is safe for human consumption without treatment because amygdalin is not oil soluble. Ground up shells are used in cosmetics as an exfoliant. [26] As an exfoliant it provides an environmentally friendly alternative to plastic microbeads. [27]
In 2020, world production of apricots was 3.72 million tonnes, led by Turkey with 22% of the total. Other major producers (in descending order) were Uzbekistan, Iran, Italy, and Algeria. [21] Malatya is the center of Turkey's apricot industry. [28]
Apricot kernels (seeds) contain amygdalin, a poisonous compound. On average, bitter apricot kernels contain about 5% amygdalin and sweet kernels about 0.9% amygdalin. These values correspond to 0.3% and 0.05% of cyanide. Since a typical apricot kernel weighs 600 mg, bitter and sweet varieties contain, respectively, 1.8 and 0.3 mg of cyanide. [29]
Apricot kernels can be made into a plant milk. [30]
Nutritional value per 100 g (3.5 oz) | |
---|---|
Energy | 1,009 kJ (241 kcal) |
63 g | |
Sugars | 53 g |
Dietary fiber | 7 g |
0.5 g | |
3.4 g | |
Vitamins | Quantity %DV† |
Vitamin A equiv. | 20% 180 μg20% 2163 μg |
Thiamine (B1) | 1% 0.015 mg |
Riboflavin (B2) | 6% 0.074 mg |
Niacin (B3) | 16% 2.589 mg |
Pantothenic acid (B5) | 10% 0.516 mg |
Vitamin B6 | 8% 0.143 mg |
Folate (B9) | 3% 10 μg |
Vitamin C | 1% 1 mg |
Vitamin E | 29% 4.33 mg |
Vitamin K | 3% 3.1 μg |
Minerals | Quantity %DV† |
Calcium | 4% 55 mg |
Iron | 15% 2.66 mg |
Magnesium | 8% 32 mg |
Manganese | 10% 0.235 mg |
Phosphorus | 6% 71 mg |
Potassium | 39% 1162 mg |
Sodium | 0% 10 mg |
Zinc | 3% 0.29 mg |
†Percentages estimated using US recommendations for adults, [31] except for potassium, which is estimated based on expert recommendation from the National Academies. [32] |
Nutritional value per 100 g (3.5 oz) | |
---|---|
Energy | 201 kJ (48 kcal) |
11 g | |
Sugars | 9 g |
Dietary fiber | 2 g |
0.4 g | |
1.4 g | |
Vitamins | Quantity %DV† |
Vitamin A equiv. | 11% 96 μg10% 1094 μg89 μg |
Thiamine (B1) | 3% 0.03 mg |
Riboflavin (B2) | 3% 0.04 mg |
Niacin (B3) | 4% 0.6 mg |
Pantothenic acid (B5) | 5% 0.24 mg |
Vitamin B6 | 3% 0.054 mg |
Folate (B9) | 2% 9 μg |
Vitamin C | 11% 10 mg |
Vitamin E | 6% 0.89 mg |
Vitamin K | 3% 3.3 μg |
Minerals | Quantity %DV† |
Calcium | 1% 13 mg |
Iron | 2% 0.4 mg |
Magnesium | 2% 10 mg |
Manganese | 3% 0.077 mg |
Phosphorus | 2% 23 mg |
Potassium | 9% 259 mg |
Sodium | 0% 1 mg |
Zinc | 2% 0.2 mg |
Other constituents | Quantity |
Water | 86 g |
†Percentages estimated using US recommendations for adults, [31] except for potassium, which is estimated based on expert recommendation from the National Academies. [32] |
In a 100-gram amount, raw apricots supply 48 Calories and are composed of 11% carbohydrates, 1% protein, less than 1% fat, and 86% water (table). Raw apricots are a moderate source of vitamin A and vitamin C (12% of the Daily Value each).
Dried apricots are a type of traditional dried fruit. The world's largest producer of dried apricots is Turkey. [33] When treated with sulfur dioxide (E220), the color is vivid orange. Organic fruit not treated with sulfur dioxide is darker in color and has a coarser texture. When apricots are dried, the relative concentration of nutrients is increased, with vitamin A, vitamin E, potassium, and iron having Daily Values above 25% (table).[ citation needed ]
The apricot is the national fruit of Armenia, mostly growing in the Ararat plain. [34] [35] It is often depicted on souvenirs. [36]
The Chinese associate the apricot with education and medicine. For instance, the classical word 杏 壇 (literally: "apricot altar") (xìng tán 杏坛) which means "educational circle", is still widely used in written language. Chuang Tzu, a Chinese philosopher in the fourth century BC, told a story that Confucius taught his students in a forum surrounded by the wood of apricot trees. [37] The association with medicine in turn comes from the common use of apricot kernels as a component in traditional Chinese medicine, and from the story of Dong Feng (董奉), a physician during the Three Kingdoms period, who required no payment from his patients except that they plant apricot trees in his orchard upon recovering from their illnesses, resulting in a large grove of apricot trees and a steady supply of medicinal ingredients. [38] The term "expert of the apricot grove" (杏林高手) is still used as a poetic reference to physicians.[ citation needed ]
The fact that apricot season is short and unreliable in Egypt has given rise to the common Egyptian Arabic and Palestinian Arabic expression filmishmish ("in apricot [season]") or bukra filmishmish ("tomorrow in apricot [season]"), generally uttered as a riposte to an unlikely prediction, or as a rash promise to fulfill a request. [39] This adynaton has the same sense as the English expression "when pigs fly". [40]
In Middle Eastern and North African cuisines, apricots are used to make Qamar al-Din (lit. "Moon of the faith"), a thick apricot drink that is a popular fixture at Iftar during Ramadan. Qamar al-Din is believed to originate in Damascus, Syria, where the variety of apricots most suitable for the drink was first grown. [41] [42]
In Jewish culture, apricots are commonly eaten as part of the Tu Bishvat seder. [43]
The Turkish idiom bundan iyisi Şam'da kayısı (literally, "the only thing better than this is an apricot in Damascus") means "it doesn't get any better than this".[ citation needed ]
In the U.S. Marines it is considered exceptionally bad luck to eat or possess apricots, [44] especially near tanks. [45] This superstition has been documented since at least the Vietnam War and is often cited as originating in World War II. Even calling them by their name is considered unlucky, [46] so they are instead called "cots", [47] "Forbidden fruit" or "A-fruit". [48]
The almond is a species of small tree from the genus Prunus, cultivated worldwide for its seed, a culinary nut. Along with the peach, it is classified in the subgenus Amygdalus, distinguished from the other subgenera by corrugations on the shell (endocarp) surrounding the seed.
Amygdalin is a naturally occurring chemical compound found in many plants, most notably in the seeds (kernels) of apricots, bitter almonds, apples, peaches, cherries and plums, and in the roots of manioc.
The peach is a deciduous tree first domesticated and cultivated in Zhejiang province of Eastern China. It bears edible juicy fruits with various characteristics, most called peaches and others, nectarines.
A cherry is the fruit of many plants of the genus Prunus, and is a fleshy drupe.
A plum is a fruit of some species in Prunus subg. Prunus. Dried plums are most often called prunes, though in the United States they may be just labeled as 'dried plums', especially during the 21st century.
Prunus is a genus of trees and shrubs in the flowering plant family Rosaceae that includes plums, cherries, peaches, nectarines, apricots, and almonds. The genus has a cosmopolitan distribution, being native to the North American temperate regions, the neotropics of South America, and temperate and tropical regions of Asia and Africa, There are 340 accepted species. Many members of the genus are widely cultivated for their fruit and for decorative purposes. Prunus fruit are drupes, or stone fruits. The fleshy mesocarp surrounding the endocarp is edible while the endocarp itself forms a hard, inedible shell called the pyrena. This shell encloses the seed, which is edible in some species, but poisonous in many others. Besides being eaten off the hand, most Prunus fruit are also commonly used in processing, such as jam production, canning, drying, and the seeds for roasting.
Prunus mume is a Chinese tree species classified in the Armeniaca section of the genus Prunus subgenus Prunus. Its common names include Chinese plum,Japanese plum, and Japanese apricot. The flower, long a beloved subject in the traditional painting and poetry of Sinospheric countries, is usually called plum blossom. This distinct tree species is related to both the plum and apricot trees. Although generally referred to as a plum in English, it is more closely related to the apricot. In East Asian cuisine, the fruit of the tree is used in juices, as a flavouring for alcohol, as a pickle, and in sauces. It is also used in traditional medicine.
Prunus laurocerasus, also known as cherry laurel, common laurel and sometimes English laurel in North America, is an evergreen species of cherry (Prunus), native to regions bordering the Black Sea in southwestern Asia and southeastern Europe, from Albania and Bulgaria east through Turkey to the Caucasus Mountains and northern Iran.
Prunus armeniaca is the most commonly cultivated apricot species. The native range is somewhat uncertain due to its extensive prehistoric cultivation. Genetic studies indicate Central Asia is the center of origin. It is extensively cultivated in many countries and has escaped into the wild in many places.
The loquat, called biwa in Japan, is a large evergreen shrub or tree grown commercially for its orange fruit and for its leaves, which are used to make herbal tea. It is also cultivated as an ornamental plant.
Prunus salicina, commonly called the Japanese plum or Chinese plum, is a small deciduous tree native to China. It is now also grown in fruit orchards in Vietnam, Korea, Japan, Israel, the United States, and Australia.
Plum pox, also known as sharka, is the most devastating viral disease of stone fruit from the genus Prunus. The disease is caused by the plum pox virus (PPV), and the different strains may infect a variety of stone fruit species including peaches, apricots, plums, nectarine, almonds, and sweet and tart cherries. Wild and ornamental species of Prunus may also become infected by some strains of the virus.
Prunus maritima, the beach plum, is a species of plum native to the East Coast of the United States. It is a choice wild edible and its few pests and salt tolerance make it a resilient fruit crop for degraded lands and urban soils.
Apricot oil or apricot kernel oil is pressed from the kernels of the Prunus armeniaca (apricot). Apricot kernels have an oil content of 40-50%. The oil is similar to almond oil and peach oil, both of which are also extracted from the kernels of the respective fruit.
Prunus subg. Prunus is a subgenus of Prunus. This subgenus includes plums, apricots and bush cherries. Some species conventionally included in Prunus subg. Amygdalus are clustered with plum/apricot species according to molecular phylogenetic studies. Shi et al. (2013) has incorporated subg. Amygdalus into subg. Prunus, thereby including almonds and peaches in this subgenus. The species in this subgenus have solitary flowers or 2–3 in a fascicle.
Prunus brigantina, called Briançon apricot, Briançon plum, marmot plum, and Alpine apricot, is a wild tree species native to France and Italy. Its fruit is edible and similar to the commercial apricot P. armeniaca, but it is smooth unlike apricots. An edible oil produced from the seed, 'huile des marmottes', is used in France.
Prunus sibirica, commonly known as Siberian apricot, is a species of shrub or small tree native to northern China, Korea, Mongolia, and eastern Siberia. It is classified in the rose family, Rosaceae, and is one of several species whose fruit are called apricot, although this species is rarely cultivated for its fruit. The species was named by Carl Linnaeus in 1753.
Prunus mandshurica, also called Manchurian apricot and scout apricot, is a tree in the genus Prunus.
Prunus simonii, called apricot plum and Simon plum, is a tree in the genus Prunus. It was first described by Elie-Abel Carrière in 1872 and is native to Hebei province, China. The species is not known in a truly wild state. It has been important for breeding commercial plum cultivars from crosses with other species of the genus Prunus. The species is named for Gabriel Eugène Simon (1829–1896), a French botanist and diplomat who sent pits to the Paris Museum in the early 1860s while he was representing the French government in China. Beginning about 1881, the species became commonly known in the United States; having been introduced there from France.
Prunus sect. Prunus is a section of Prunus subg. Prunus. It contains species of Eurasian plum.
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: CS1 maint: multiple names: authors list (link)The apricot, being the Armenian national fruit...
As a symbol of national pride the image of apricots is included in Armenian souvenirs.