| Plum | |
|---|---|
 | |
| Prunus cultivar (mature fruits with natural wax bloom) | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Rosales |
| Family: | Rosaceae |
| Subfamily: | Maloideae or Spiraeoideae [1] |
| Genus: | Prunus |
| Subgenus: | Prunus |
| Species | |
| See text. | |
| Nutritional value per 100 g (3.5 oz) | |
|---|---|
| Energy | 192 kJ (46 kcal) |
| Carbohydrates | 11.4 g |
| Sugars | 9.9 g |
| Dietary fibre | 1.4 g |
| Fat | 0.28 g |
| Protein | 0.70 g |
| Vitamin A | 345 IU |
| Vitamin C | 9.5 mg (16%) |
| Phosphorus | 16 mg (2%) |
| Potassium | 157 mg (3%) |
| 1 fruit (2-1/8" dia) 66 g 1 cup, sliced 165 g Percentages are relative to US recommendations for adults. Source: USDA Nutrient database | |
| Nutritional value per 100 g (3.5 oz) | |
|---|---|
| Energy | 1,006 kJ (240 kcal) |
| Carbohydrates | 63.88 g |
| Sugars | 38.13 g |
| Dietary fibre | 7.1 g |
| Fat | 0.38 g |
| Protein | 2.18 g |
| Vitamin A | 781 IU |
| Vitamin C | 0.6 mg (1%) |
| Phosphorus | 69 mg (10%) |
| Potassium | 732 mg (16%) |
| 1 prune, pitted 9.5 g 1 cup, pitted 174 g Percentages are relative to US recommendations for adults. Source: USDA Nutrient database | |
Mature plum fruit may have a dusty-white coating that gives them a glaucous appearance and is easily rubbed off. This is an epicuticular wax coating and is known as "wax bloom". Dried plum fruits are called dried plums or prunes, although prunes are a distinct type of plum, and may have pre-dated the fruits now commonly known as plums.[citation needed]
Contents |
Species
The subgenus is divided into three sections:- Sect. Prunus (Old World plums). Leaves in bud rolled inwards; flowers 1-3 together; fruit smooth, often wax-bloomed.
- P. cerasifera (cherry plum)
- P. cocomilia
- P. consociiflora"
- P. domestica (species of most "plums" and "prunes" sold as such)
- P. insititia (damsons)
- P. simonii
- P. spinosa (blackthorn or sloe)
- Sect. Prunocerasus (New World plums). Leaves in bud folded inwards; flowers 3-5 together; fruit smooth, often wax-bloomed.
- P. alleghaniensis
- P. americana
- P. angustifolia
- P. hortulana
- P. maritima (beach plum)
- P. mexicana
- P. nigra
- P. orthosepala
- P. subcordata (Klamath, Oregon, or Sierra plum)
- Sect. Armeniaca (Apricots). Leaves in bud rolled inwards; flowers very short-stalked; fruit velvety. Treated as a distinct subgenus by some authors.
- P. armeniaca (apricot)
- P. brigantina
- P. mume (ume)
- P. sibirica
Cultivation and uses
Dried plums (or prunes) are also sweet and juicy and contain several antioxidants. Plums and prunes are known for their laxative effect. This effect has been attributed to various compounds present in the fruits, such as dietary fiber, sorbitol,[2] and isatin.[3] Prunes and prune juice are often used to help regulate the functioning of the digestive system. Dried prune marketers in the United States have, in recent years, begun marketing their product as "dried plums". This is due to "prune" having negative connotations connected with elderly people suffering from constipation.[4]
Dried, salted plums are used as a snack, sometimes known as saladito or salao. Various flavors of dried plum are available at Chinese grocers and specialty stores worldwide. They tend to be much drier than the standard prune. Cream, Ginsing, Spicy, and Salty are among the common varieties. Licorice is generally used to intensify the flavor of these plums and is used to make salty plum drinks and toppings for Shaved Ice or baobing.
Pickled plums are another type of preserve available in Asia and international specialty stores. The Japanese variety, called umeboshi, is often used for rice balls, called "Onigiri" or "Omusubi". The ume, from which umeboshi are made, is however more closely related to the apricot than to the plum.
As with many other members of the rose family, plum seeds contain cyanogenic glycosides, including amygdalin.[5] These substances are capable of decomposing into a sugar molecule and hydrogen cyanide gas. While plum seeds are not the most toxic within the rose family—that dubious honor going to the bitter almond—large doses of these chemicals from any source are hazardous to human health.
Prune kernel oil is made from the fleshy inner part of the pit of the plum.
Plums come in a wide variety of colors and sizes. Some are much firmer-fleshed than others and some have yellow, white, green or red flesh, with equally varying skin color.
- Damson, or Damask Plum
- Greengage (Firm, green flesh and skin even when ripe.)
- Mirabelle (Dark yellow, predominantly grown in northeast France.)
- Satsuma plum (Firm red flesh with a red skin.)
- 'Victoria' (Yellow flesh with a red or mottled skin.)
- Yellowgage, or Golden plum (Similar to Greengage, but yellow.)
If the weather is too dry the plums will not develop past a certain stage, but will fall from the tree while still tiny green buds, and if it is unseasonably wet or if the plums are not harvested as soon as they are ripe, the fruit may develop a fungal condition called brown rot. Brown rot is not toxic, and very small affected areas can be cut out of the fruit, but unless the rot is caught immediately the fruit will no longer be edible. Plum is used as a food plant by the larvae of some Lepidoptera including November Moth, Willow Beauty and Short-cloaked Moth.
The Serbian plum (Serbian: шљива / šljiva) is the third most produced in the world and the alcoholic drink slivovitz (Plum brandy) (Serbian: шљивовица / šljivovica) is the national drink of Serbia. The plum production averages 424,300 tons per year; FAO 1991–2001.[citation needed]
A large number of plums are also grown in Hungary where they are called szilva and are used to make lekvar (a plum paste jam), palinka (a slivovitz-type liquor), plum dumplings, and other foods. The region of Szabolcs-Szatmár, in the northeastern part of the country near the borders with Ukraine and Romania, is a major producer of plums.
The mei blossom (Prunus mume), along with the peony, are considered traditional floral emblems of China. On June 21, 1964, the Executive Yuan of the Republic of China officially designated the mei blossom to be its national flower, with the triple grouping of stamens (one long and two short) representing the Three Principles of the People and the five petals symbolizing the five branches of the ROC government.[6] The designation repeats a previous statement by the ROC government in 1929.[7]
The mei blossom is also the floral symbol of the ancient Chinese city Nanjing, which served as the former capital (and remained designated as the official capital) of the Republic of China.
The plum is commonly used in China, Yunnan area, to produce a local plum wine with a smooth, sweet, fruity taste and approximately 12% alcohol by volume.[citation needed]
Etymology
The fruit Prunus armeniaca gained its name from the beliefs of Pliny the Elder, a Roman historian and scientist of the 1st century, who maintained that the apricot was a kind of a plum, and had originally come from Armenia.[8] Armenian sources support their claims by referring to a 6,000-year-old apricot pit found in an archaeological site near Yerevan.[8] Other historians point that Mesopotamia as a clue to the Latin name. Apricots were cultivated in Mesopotamia, and it was known as armanu in the Akkadian language.Production
| Top ten plum producers in 2009 | ||
|---|---|---|
| Country | Production (tons) | Note |
 China | 5,373,001 | [E] |
 Serbia | 662,631 | |
 USA | 561,366 | |
 Romania | 533,691 | |
 Turkey | 245,782 | |
 Spain | 200,100 | |
 Italy | 194,100 | |
 Bosnia and Herzegovina | 155,767 | |
 France | 150,000 | [E] |
 Ukraine | 136,700 | |
| World | 10,679,206 | [A] |
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