Monday, April 25, 2011

Fruit of the Week - Apricot

The apricot, Prunus armeniaca, is a species of Prunus, classified with the plum in the subgenus Prunus. The native range is somewhat uncertain due to its extensive prehistoric cultivation.
It is a small tree, 8–12 m tall, with a trunk up to 40 cm diameter and a dense, spreading canopy. The leaves are ovate, 5–9 cm long and 4–8 cm wide, with a rounded base, a pointed tip and a finely serrated margin. The flowers are 2–4.5 cm 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 similar to a small peach, 1.5–2.5 cm 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 with very short hairs (botanically: pubescent). The single seed is enclosed in a hard stony shell, often called a "stone", with a grainy, smooth texture except for three ridges running down one side.

The apricot was known in Armenia during ancient times, and has been cultivated there for so long it is often thought to be native there. Its scientific name Prunus armeniaca (Armenian plum) derives from that assumption. For example, De Poerderlé, writing in the 18th century, asserted "Cet arbre tire son nom de l'Arménie, province d'Asie, d'où il est originaire et d'où il fut porté en Europe ..." ("this tree takes its name from Armenia, province of Asia, where it is native, and whence it was brought to Europe ..."). An archaeological excavation at Garni in Armenia found apricot seeds in an Eneolithic-era site. However, the Vavilov center of origin locates the origin of the apricot's domestication in the Chinese region, and other sources say the apricot was first cultivated in India in about 3000 BC.More recently, English settlers brought the apricot to the English colonies in the New World. Most of modern American production of apricots comes from the seedlings carried to the west coast by Spanish missionaries. Almost all U.S. production is in California, with some in Washington and Utah. Many apricots are also cultivated in Australia, particularly South Australia, where they are commonly grown in the region known as the Riverland and in a small town called Mypolonga in the Lower Murray region of the state. In states other than South Australia, apricots are still grown, particularly in Tasmania and western Victoria and southwest New South Wales, but they are less common than in South Australia.

Cyanogenic glycosides (found in most stone fruit seeds, bark, and leaves) are found in high concentration in apricot seeds. Laetrile, a purported alternative treatment for cancer, is extracted from apricot seeds. Apricot seeds "were used against tumors as early as A.D. 502. In England during the seventeenth century, apricot oil was also used against tumors, swellings, and ulcers". In 2005, scientists in the Republic of Korea found that treating human prostate cancer cells with amygdalin induces programmed cell death. They concluded that "amygdalin may offer a valuable option for the treatment of prostate cancers".

In Europe, apricots were long considered an aphrodisiac, and were used in this context in William Shakespeare's A Midsummer Night's Dream, and as an inducer of childbirth, as depicted in John Webster's The Duchess of Malfi.

Due to their high fiber to volume ratio, dried apricots are sometimes used to relieve constipation or induce diarrhea. Effects can be felt after eating as few as three.

Research shows that of any food, apricots possess the highest levels and widest variety of carotenoids. Carotenoids are antioxidants that help prevent heart disease, reduce "bad cholesterol" levels,[citation needed] and protect against cancer. Although initial studies suggested that antioxidant supplements might promote health, later large clinical trials did not detect any benefit and suggested instead that excess supplementation may be harmful. In traditional Chinese medicine, apricots are considered helpful in regenerating body fluids, detoxifying, and quenching.

Apricot season in the U.S. runs from May through August. In the winter, apricots are imported from South America. Look for fruits with a rich orange color while avoiding those that are pale and yellow. Fruits should be slightly soft. If they are too firm they have not been tree-ripened, and tree-ripened fruits always taste best.

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