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The MANDARIN ORANGE ( Citrus
Citrus
reticulata; Chinese : 橘子 or 桔子; pinyin : júzi), also known as the MANDARIN or MANDARINE, is a small citrus tree with fruit resembling other oranges .

Mandarins are usually eaten plain or in fruit salads. Specifically reddish-orange mandarin cultivars can be marketed as tangerines , but this is not a botanical classification. Thin, pebbly skin

Mandarins are smaller and oblate, rather than spherical like the common oranges (which are a mandarin hybrid ). The taste is considered less sour , as well as sweeter and stronger. A ripe mandarin is firm to slightly soft, heavy for its size, and pebbly-skinned. The peel is very thin, with very little bitter white mesocarp , so they are usually easier to peel and to split into segments. Hybrids generally have these traits to a lesser degree.

The tree is more drought-tolerant than the fruit. The mandarin is tender and is damaged easily by cold. It can be grown in tropical and subtropical areas.

According to molecular studies, the mandarin, the citron , the pomelo , and the papeda were the ancestors of most other commercial citrus varieties, through breeding or natural hybridization; mandarins are therefore all the more important as the only sweet fruit among the parental species.

CONTENTS

* 1 Etymology

* 2 Uses

* 2.1 Fresh mandarins * 2.2 Peel * 2.3 Canning * 2.4 Traditional medicine

* 3 Production volume and nutrition * 4 Cultural significance * 5 Genetics

* 6 Varieties

* 6.1 Pure mandarins * 6.2 Unknown * 6.3 Hybrids with mandarin ancestry * 6.4 Non-mandarins

* 7 Biological characteristics * 8 See also * 9 References * 10 External links

ETYMOLOGY

The name "mandarin orange" is a calque of Swedish mandarin apelsin (apelsin from German Apfelsine=Apfel+Sino means chinese apple), first attested in the 18th century. The form "mandarine" derives from the French name for this fruit. The reason for the epithet "mandarin" is not clear, hypotheses ranging from the yellow colour of some robes worn by mandarin dignitaries to the mandarin being an excellent kind of Chinese orange.

USES

Dried mandarin peel used as a seasoning Chocolate
Chocolate
-coated citrus peel Canned and peeled mandarin orange segments

FRESH MANDARINS

See also: List of fruit dishes

Mandarins are generally peeled and eaten fresh. The fresh fruit is also used in salads, desserts and main dishes. Fresh tangerine juice and frozen juice concentrate are commonly available in the United States. The number of seeds in each segment (carpel) varies greatly.

PEEL

The peel is used fresh, whole or zested , or dried as chenpi . It can be used as a spice for cooking, baking, drinks, or candy.

CANNING

Canned mandarin segments are peeled to remove the white pith prior to canning; otherwise, they turn bitter. Segments are peeled using a chemical process. First, the segments are scalded in hot water to loosen the skin; then they are bathed in a lye solution, which digests the albedo and membranes. Finally, the segments undergo several rinses in plain water. They are often used in salads, desserts, and baking.

TRADITIONAL MEDICINE

In traditional Chinese medicine , the dried peel of the fruit is used in the regulation of ch\'i , and also used to treat abdominal distension , to enhance digestion , and to reduce phlegm . Mandarins have also been used in ayurveda (traditional medicine of India).

PRODUCTION VOLUME AND NUTRITION

Mandarin oranges, raw NUTRITIONAL VALUE PER 100 G (3.5 OZ)

ENERGY 223 kJ (53 kcal)

CARBOHYDRATES 13.34 g

SUGARS 10.58 g

DIETARY FIBER 1.8 g

FAT 0.31 g

PROTEIN 0.81 g

VITAMINS

VITAMIN A EQUIV. BETA-CAROTENE (4%) 34 μg (1%) 155 μg

THIAMINE (B1) (5%) 0.058 mg

RIBOFLAVIN (B2) (3%) 0.036 mg

NIACIN (B3) (3%) 0.376 mg

PANTOTHENIC ACID (B5) (4%) 0.216 mg

VITAMIN B6 (6%) 0.078 mg

FOLATE (B9) (4%) 16 μg

CHOLINE (2%) 10.2 mg

VITAMIN C (32%) 26.7 mg

VITAMIN E (1%) 0.2 mg

MINERALS

CALCIUM (4%) 37 mg

IRON (1%) 0.15 mg

MAGNESIUM (3%) 12 mg

MANGANESE (2%) 0.039 mg

PHOSPHORUS (3%) 20 mg

POTASSIUM (4%) 166 mg

SODIUM (0%) 2 mg

ZINC (1%) 0.07 mg

------------------------- Link to USDA Database entry

* Units * μg = micrograms • mg = milligrams * IU = International units

Percentages are roughly approximated using US recommendations for adults. Source: USDA Nutrient Database

Tangerines , mandarins, clementines , satsumas Top 20 producers in 2011 (1000 tonnes)

People\'s Republic of China
China
12,482

Spain
Spain
2,117

Brazil
Brazil
1,005

Japan
Japan
928

Turkey
Turkey
872

Italy
Italy
853

Egypt
Egypt
848

Iran
Iran
800

Morocco
Morocco
753

South Korea
South Korea
681

United States
United States
596

Pakistan
Pakistan
515

Mexico
Mexico
406

Argentina
Argentina
401

Thailand
Thailand
360

Peru
Peru
236

Algeria
Algeria
218

Taiwan
Taiwan
197

Nepal
Nepal
179

Maldives
Maldives
152

All other 1,582

WORLD TOTAL 26,030

Source: UN Food and Agriculture Organisation (FAO),

CULTURAL SIGNIFICANCE

Mandarin fruitlets

During Chinese New Year
Chinese New Year
, mandarin oranges/tangerine /satsumas are considered traditional symbols of abundance and good fortune. During the two-week celebration, they are frequently displayed as decoration and presented as gifts to friends, relatives, and business associates.

Mandarin oranges, particularly from Japan
Japan
, are a Christmas
Christmas
tradition in Canada
Canada
, the United States
United States
and Russia
Russia
.

In the United States, they are commonly purchased in 5- or 10-pound boxes, individually wrapped in soft green paper, and given in Christmas
Christmas
stockings . This custom goes back to the 1880s, when Japanese immigrants in the United States
United States
began receiving Japanese mandarin oranges from their families back home as gifts for the New Year. The tradition quickly spread among the non-Japanese population, and eastwards across the country: each November harvest, "The oranges were quickly unloaded and then shipped east by rail. 'Orange Trains' – trains with boxcars painted orange – alerted everyone along the way that the irresistible oranges from Japan
Japan
were back again for the holidays. For many, the arrival of Japanese mandarin oranges signaled the real beginning of the holiday season." Mandarin oranges covered with snow

This Japanese tradition merged with European traditions related to the Christmas
Christmas
stocking . Saint Nicholas
Saint Nicholas
is said to have put gold coins into the stockings of three poor girls so that they would be able to afford to get married. Sometimes the story is told with gold balls instead of bags of gold, and oranges became a symbolic stand-in for these gold balls, and are put in Christmas
Christmas
stockings in Canada
Canada
along with chocolate coins wrapped in gold foil.

Satsumas were also grown in the United States
United States
from the early 1900s, but Japan
Japan
remained a major supplier. U.S. imports of these Japanese oranges was suspended due to hostilities with Japan
Japan
during World War II. While they were one of the first Japanese goods allowed for export after the end of the war, residual hostility led to the rebranding of these oranges as "mandarin" oranges.

The delivery of the first batch of mandarin oranges from Japan
Japan
in the port of Vancouver, British Columbia (Canada), is greeted with a festival that combines Santa Claus and Japanese dancers —young girls dressed in traditional kimonos.

In Russia, mandarin oranges (tangerines ) have traditionally been supplied from Morocco
Morocco
(though there exist a theory that it was only used to mask the supplies of Israeli tangerines during the period of particularly bad relations between Israel
Israel
and Soviet Union) and are associated with that country, even though nowadays they are also supplied from other countries, e.g. Spain
Spain
, Israel
Israel
and Egypt
Egypt
. Another major supplier was a domestic region of Abkhazia
Abkhazia
in the Caucasus
Caucasus
, and even after the Dissolution of the Soviet Union it continued to supply its characteristically yellow-greenish and particularly aromatic fruits to the central Russian regions. The eastern parts of the country, in turn, were generally supplied from China
China
or Vietnam
Vietnam
, and continue so nowadays, with the characteristic 10 and 20-pound plastic and cardboard boxes being the ubiquitous seasonal sight. Anyway, regardless of the supplier or variety, mandarin oranges were and are an iconic symbol of winter and the holiday season in Russia, in an interesting parallel with the same status it holds in Japan.

Historically, the Christmas
Christmas
fruit imported to North America was mostly Dancys , but now it is more often a hybrid.

GENETICS

Further information: Citrus
Citrus
taxonomy Mandarine from port vila Market Vanuatu

Mandarins are one of the four core ancestral citrus taxa , and are thought to have evolved in Vietnam
Vietnam
, south China
China
, and Japan
Japan
.

Pure mandarins seem to divide into two groups; an edible group, including the Nanfengmiju , and an "acidic" group, which is too sour to be edible but which is widely used as rootstock and grown for juice; this includes Sunki , Shekwasha , and Cleopatra mandarins .

Under the Tanaka classification system , mikans, satsumas, tangerines etc. are considered to be divided into different species, including Citrus
Citrus
unshiu and Citrus
Citrus
tangerina . Under the Swingle system , all these are considered to be groups of mandarin varieties. Unshius and tangerines genetically resemble mandarins, but the genetics are still not thoroughly studied.

Like all citrus fruit, mandarins hybridize readily with other citrus. Many fruit sold as mandarins are in fact hybrids with some pummelo (C. maxima) ancestry, and are thus on a continuum with clementines, sweet and sour oranges, and grapefruit.

Hybrids between mandarins and other citrus fruits are sold under a variety of names; see below.

VARIETIES

See also: Citrus
Citrus
taxonomy

Mandarins marketed as tangerines in the US are or were usually Dancy , Sunburst or Murcott (Honey) cultivars; Sunbursts and Murcotts are hybrids. Unripe fruit

PURE MANDARINS

* Nanfengmiju ( Citrus
Citrus
reticulata Blanco) A rare non-hybrid citrus. One of the most widely cultivated varieties in China. * Cleopatra mandarin * Shekwasha , a very sour mandarin grown for its acidic juice. * Sunki * Sun Chu Sha * ? The Dancy may be a pure mandarin. Until the 1970s, most tangerines grown and eaten in the USA were Dancys, and it was known as " Christmas
Christmas
tangerine" and zipper-skin tangerine * ? Obenimikan may be a synonym for Dancy * Bang Mot tangerine is a popular variety in Thailand * Grape is popular in Vancouver, B.C

UNKNOWN

* "MANDARIN"; some fruit sold as mandarins in some jurisdictions is in fact hybrid or genetically modified.

* Satsuma ( Citrus
Citrus
unshiu), may be a type of pure mandarin, but the term is sometimes applied to hybrids. It is a seedless variety, of which there are over 200 cultivars , including Wenzhou migana, Owari, and mikan; the source of most canned mandarins, and popular as a fresh fruit due to its ease of consumption

* Owari, a well-known Satsuma cultivar that ripens during the late autumn * Kishumikan * Komikan

* Tangerines ( Citrus
Citrus
tangerina) may be a type of pure mandarin. However, some tangerine-grapefruit hybrids are legally sold as tangerines in the USA.

HYBRIDS WITH MANDARIN ANCESTRY

Kinnow , a 'King' ( Citrus
Citrus
nobilis ) × 'Willow Leaf' ( Citrus
Citrus
× deliciosa ) cross, developed by Dr H.B. Frost

* Lemandarins

* Meyer lemon , a mandarin–lemon hybrid. * Rangpur , a different mandarin–lemon hybrid.

* Mandarin–pumelo hybrids, sometimes called mandelos

* The Mandelo cultivar, a specific indirect complex mandarin–pumelo hybrid * Huanglingmiao , a mandarin–pumelo hybrid * The Ponkan , a mandarin–pumelo hybrid

* Mediterranean/Willowleaf/Thorny ( Citrus
Citrus
× deliciosa ), a mandarin–pumelo hybrid

* Kinnow (see image), a 'King' ( Citrus
Citrus
nobilis ) × 'Willow Leaf' ( Citrus
Citrus
× deliciosa) hybrid.

* The common sweet orange is 75% mandarin and 25% pumelo

* Tangors , or temple oranges, are crosses between the mandarin orange and the common sweet orange; their thick rind is easy to peel and its bright orange pulp is sour-sweet and full-flavored * Clementine
Clementine
, ( Citrus
Citrus
×clementina), a hybrid between a mandarin orange and a sweet orange, so named in 1902; sometimes known as a "Thanksgiving Orange" or " Christmas
Christmas
orange", as its peak season is winter ; an important commercial mandarin orange form, having displaced mikans in many markets * Clemenules or Nules , a variety of Clementine
Clementine
named for the Valencian town where it was first bred in 1953; it is the most popular variety of Clementine
Clementine
grown in Spain.

* Murcott , a mandarin–sweet orange hybrid.

* Tango is a proprietary seedless mid-late season irradiated selection of murcott developed by the University of California Citrus Breeding Program.

* Fairchild is a Clementine
Clementine
-Orlando hybrid

NON-MANDARINS

* Mangshanyegans , long thought to be mandarins, are in fact a separate species.

BIOLOGICAL CHARACTERISTICS

Citrus
Citrus
fruits are usually self-fertile (needing only a bee to move pollen within the same flower) or parthenocarpic (not needing pollination and therefore seedless, such as the satsuma ).

Blossoms from the Dancy cultivar are one exception. They are self-sterile , and therefore must have a pollinator variety to supply pollen, and a high bee population to make a good crop.

SEE ALSO

* Food portal

* Japanese citrus * List of citrus fruits * Tangerine * Citrus
Citrus
unshiu * Ju Song – "In Praise of the Orange-Tree"

* Orange (fruit)

REFERENCES

* ^ Pittman & Davis (1999-02-22). "Pittman & Davis – Premium Citrus
Citrus
Fruit Gifts – Why Are Tangerines So Tangy?". Pittmandavis.com. Retrieved 2012-11-17. * ^ "Market Watch: The wild and elusive Dancy". David Karp, LA Times. http://www.latimes.com/food/la-fo-marketwatch-20110128-story.html * ^ "International Citrus
Citrus
Genomics Consortium". University of California. * ^ "Chinese loanwords in the OED". The Free Library . Retrieved October 5, 2016. * ^ Yeung. Him-Che. Handbook of Chinese Herbs and Formulas. 1985. Los Angeles: Institute of Chinese Medicine. * ^ Chopra, R. N.; Nayar, S. L.; Chopra, I. C. Glossary of Indian Medicinal Plants. 1986. New Delhi: Council of Scientific and Industrial Research. * ^ "Faostat". Faostat.fao.org. Archived from the original on 2013-04-01. Retrieved 2013-12-19. * ^ A B C "Information on This Week\'s Product: Mandarin Oranges" (PDF). BC Agriculture in the Classroom Foundation. Retrieved 24 January 2013. * ^ A B "Personalized Christmas
Christmas
Stockings". centrinet.com. * ^ A B Marion, Paul (December 19, 2010). "Oranges at Christmas". richardhowe.com: Lowell Politics and Lowell History. Retrieved 15 January 2013. * ^ http://edis.ifas.ufl.edu/ch116 * ^ " Christmas
Christmas
Stockings". Christmas
Christmas
Traditions in France and in Canada. Ministère de la culture et de la communication de France. Retrieved 15 January 2013. * ^ A B Dancy Tangerine Citrus
Citrus
Tangerina v. Dancy, Ark of Taste Catalogue http://www.slowfoodusa.org/ark-item/dancy-tangerine * ^ A B C D E F G "BMC Genetics – Full text – Next generation haplotyping to decipher nuclear genomic interspecific admixture in Citrus
Citrus
species: analysis of chromosome 2". biomedcentral.com. * ^ A B C "New universal mitochondrial PCR markers reveal new information on maternal citrus phylogeny". Tree Genetics. 7: 49–61. doi :10.1007/s11295-010-0314-x . * ^ "Subacute toxicity assessment of carotenoids extracted from citrus peel (Nanfengmiju, Citrus
Citrus
reticulata Blanco) in rats". Regulatory Toxicology and Pharmacology. 62: 16–22. doi :10.1016/j.yrtph.2011.12.003 . * ^ "The Seedless Kishu, a small but mighty mandarin". latimes. * ^ A B Barkley, NA; Roose, ML; Krueger, RR; Federici, CT. "Assessing genetic diversity and population structure in a citrus germplasm collection utilizing simple sequence repeat markers (SSRs)". Theoretical and Applied Genetics. 112: 1519–1531. PMID 16699791 . doi :10.1007/s00122-006-0255-9 . * ^ Larry K. Jackson and Stephen H. Futch. "HS169/CH074: Dancy Tangerine". ufl.edu. * ^ http://www.citrusvariety.ucr.edu/citrus/dancy.html * ^ "Synonymy of C. tangerina at The Plant List". * ^ Larry K. Jackson and Stephen H. Futch. "Robinson Tangerine". ufl.edu. * ^ Commernet, 2011. "20-13.0061. Sunburst Tangerines; Classification and Standards, 20-13. Market Classification, Maturity Standards And Processing Or Packing Restrictions For Hybrids, D20. Departmental, 20. Department of Citrus, Florida Administrative Code". State of Florida. Retrieved 14 May 2015. * ^ A B C "Sequencing of diverse mandarin, pummelo and orange genomes reveals complex history of admixture during citrus domestication" . Nature Biotechnology. 32: 656–662. 2014. PMC 4113729  . PMID 24908277 . doi :10.1038/nbt.2906 . * ^ A B C D Velasco, R; Licciardello, C. "A genealogy of the citrus family". Nature Biotechnology. 32: 640–642. PMID 25004231 . doi :10.1038/nbt.2954 . * ^ Edible: An Illustrated Guide to the World\'s Food Plants. National Geographic . 2008. p. 73. ISBN 978-1-4262-0372-5 . * ^ Toni Siebert (30 July 2009). "Nules". Citrus
Citrus
Variety Database. University Of California. Retrieved 9 June 2011. * ^ Stephen H. Futch and Larry K. Jackson. "HS174/CH078: Murcott (Honey Tangerine)". ufl.edu. * ^ http://plantbiology.ucr.edu/faculty/Tango%20Information%20Sheet-4-12-2009.pdf

Notes

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