Persimmon
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- This article refers to the edible fruit. For the British construction company, see Persimmon plc.
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 American Persimmon flower
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A Persimmon is any of a number of species of trees of the genus Diospyros, and the edible fruit borne by them. The word persimmon is derived from putchamin, pasiminan, or pessamin, from an Algonquian language of the eastern United States, meaning "a dry fruit". Persimmons are generally light yellow-orange to dark red-orange in colour, and depending on the species, vary in size from 1.5-9 cm (.5-4 in) diameter, and may be spherical, acorn-, or pumpkin-shaped.[1] The calyx often remains attached to the fruit after harvesting, but becomes easier to remove as it ripens. They are high in glucose, with a balanced protein profile, and possess various medicinal and chemical uses.
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[edit] Species
The most widely cultivated species is Kaki Persimmon or Kaki (柿 kaki?) (Diospyros kaki), grown for its fruit. Kaki fruit is very sweet to the taste with a soft to occasionally fibrous texture. This species, native to China, is deciduous, with broad, stiff leaves. Cultivation of the fruit extended first to other parts of east Asia, and was later introduced to California and southern Europe in the 1800s, and numerous cultivars have been selected. It is edible in its crisp firm state, but has its best flavor when allowed to rest and soften slightly after harvest. The Japanese cultivar 'Hachiya' is a widely grown cultivar. The fruit has a high tannin content which makes the immature fruit astringent and bitter. The tannin levels are reduced as the fruit matures. Persimmons like 'Hachiya' must be completely ripened before consumed. When ripe, this fruit is comprised of thick pulpy jelly encased in a waxy thin skinned shell. "Sharon Fruit" is the trade name for D. kaki fruit that has been artificially ripened with chemicals.[2]
The American persimmon (Diospyros virginiana) is native to eastern North America. It is colloquially known as a "pawdad".
The Black persimmon or Black sapote (Diospyros digyna) is native to Mexico. Its fruit has green skin and white flesh, which turns black when ripe.
The Mabolo or Velvet-apple (Diospyros discolor) is native to the Philippines. It is bright red when ripe.
The Date-plum (Diospyros lotus) is native to southwest Asia and southeast Europe. It was known to the ancient Greeks as "the fruit of the Gods", i.e. Dios pyros (lit. "the wheat of Zeus"), hence the scientific name of the genus. Its English name is derived from the small fruit, which has a taste reminiscent of both plums and dates. This species is mentioned in the Odyssey; it was so delicious that those who ate it forgot about returning home and wanted to stay and eat lotus with the lotus-eaters.[citation needed]
There are many other species of persimmon that are inedible to humans, and thus have little or no commercial value for their fruit.
[edit] Fruit
Commercially, there are generally two types of persimmon fruit; astringent and non-astringent. Astringent persimmons contain very high levels of soluble tannins and are unpalatable if eaten before ripening. The astringency of tannins is removed by ripening by exposure to light over several days, or artificially with chemicals. This bletting process is sometimes jumpstarted by exposing the fruit to cold or frost which hastens cellular wall breakdown. These astringent persimmons can also be prepared for commercial purposes by drying.
Non-astringent persimmons are not actually free of tannins as the term suggests, but rather are far less astringent before ripening, and lose more of their tannic quality sooner. Non-astringent persimmons may be consumed when still very firm to very very soft.
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| Persimmons Nutritional value per 100 g |
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| Energy 70 kcal 290 kJ | ||||||||||||||||||||
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Diospyros kaki, raw Percentages are relative to US recommendations for adults. Source: USDA Nutrient database |
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[edit] Culinary uses
Persimmons are eaten fresh or dried, raw or cooked. When eaten fresh the peel is cut/peeled off and the fruit is often cut into quarters or eaten whole like an apple. The flesh ranges from firm to mushy and the texture is unique. The flesh is very sweet.In China, Korea, Japan, and Vietnam after harvesting, 'Hachiya' persimmons are prepared using traditional hand-drying techniques, outdoors for two to three weeks. The fruit is then further dried by exposure to heat over several days before being shipped to market. In Japan the dried fruit is called Hoshigaki (干し柿), and is eaten as a snack or dessert. The dried persimmon is also used to make the traditional Korean spicy punch, sujeonggwa, while the matured, fermented fruit is used to make a vinegar that is thought to have a wide variety of holistic properties.[3] In some areas of Manchuria and Korea, the dried leaves of the fruit are used for making tea. The Korean name for this tea is ghamnip cha (감잎차).
The persimmon also figures prominently in American culinary tradition. Persimmon pudding is a dessert using fresh persimmons. An annual persimmon festival, featuring a persimmon pudding contest, is held every September in Mitchell, Indiana. Persimmon pudding is a baked pudding that has the consistency of pumpkin pie but resembles a brownie and is almost always topped with whipped cream. Persimmons may be stored at room temperature (20°C) where they will continue to ripen.
[edit] Ethnomedical Uses
- In traditional Chinese medicine the fruit regulates ch'i
- The raw fruit is used to treat constipation, hemorrhoids, and to stop bleeding. As such, it is not a good idea to consume too many persimmons at once- they can induce diarrhea.
- The cooked fruit is used to treat diarrhea and dysentery
[edit] Wood
Though persimmon trees belong to the same genus as ebony trees, persimmon tree wood has a limited use in the manufacture of objects requiring hard wood. Persimmon wood is used for paneling in traditional Korean and Japanese furniture.
In North America, the lightly coloured, fine-grained wood of D. virginiana is used to manufacture billiard cues and shuttles (used in the textile industry). Persimmon wood was also heavily used in making the highest-quality heads of the golf clubs known as "woods", until the golf industry moved primarily to metal woods in the last years of the 20th century. Persimmon woods are still made, but in far lower numbers than in past decades. Over the last few decades persimmon wood has become popular among bow craftsmen, especially in the making of traditional longbow.
Like some other plants of the genus Diospyros, older persimmon heartwood is black or dark brown in color, in stark contrast to the sapwood and younger heartwood, which is pale in color.
[edit] References
- ^ General Crop Information: Persimmon. University of Hawaii, Extension Entomology & UH-CTAHR Integrated Pest Management Program. Retrieved on 2007-01-15.
- ^ Persimmon Fruit Facts. California Rare Fruit Growers, Inc.,. Retrieved on 2007-01-15.
- ^ Food for Health, Produces Most Honestly [sic]. Korea Agro-Fisheries Trade Corp.. Retrieved on 2007-01-15.
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