Chestnut
| Chestnut | |
|---|---|
 |
|
| Sweet chestnut Castanea sativa | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Fagales |
| Family: | Fagaceae |
| Genus: |
Castanea Mill. |
| Species | |
|
Castanea alnifolia* –
bush chinkapin
Castanea crenata –
Japanese chestnut
Castanea dentata –
American chestnut
Castanea henryi –
Henry's chestnut
Castanea mollissima –
Chinese chestnut
Castanea ozarkensis –
Ozark chinkapin
Castanea pumila –
Allegheny chinkapin
Castanea sativa –
Sweet chestnut
Castanea seguinii –
Seguin's chestnut
* treated as a synonym of Castanea pumila by many authors |
|
| Nutritional value per 100 g (3.5 oz) | |
|---|---|
| Energy | 820 kJ (200 kcal) |
|
44 g
|
|
| Sugars | 11 g |
|
1.3 g
|
|
|
1.6 g
|
|
| Vitamins | |
| Vitamin A equiv. |
(0%)
1 μg |
| Thiamine (B1) |
(13%)
0.144 mg |
| Riboflavin (B2) |
(1%)
0.016 mg |
| Niacin (B3) |
(7%)
1.102 mg |
| Vitamin B6 |
(27%)
0.352 mg |
| Folate (B9) |
(15%)
58 μg |
| Vitamin B12 |
(0%)
0 μg |
| Vitamin C |
(48%)
40.2 mg |
| Minerals | |
| Calcium |
(2%)
19 mg |
| Iron |
(7%)
0.94 mg |
| Magnesium |
(8%)
30 mg |
| Phosphorus |
(5%)
38 mg |
| Potassium |
(10%)
484 mg |
| Sodium |
(0%)
2 mg |
| Zinc |
(5%)
0.49 mg |
| Other constituents | |
| Water | 60.21 g |
|
|
| Percentages are roughly approximated using US recommendations for adults. Source: USDA Nutrient Database |
|
* treated as a synonym of Castanea pumila by many authors
The chestnut group is a genus (Castanea) of eight or nine species of deciduous trees and shrubs in the beech family Fagaceae, native to temperate regions of the Northern Hemisphere.
The name also refers to the edible nuts they produce.
Chestnuts belong to the family Fagaceae, which also includes oaks and beeches. The four main species are commonly known as European, Chinese, Japanese, and American chestnuts, some species called chinkapin or chinquapin:
Chestnuts should not be confused with horse chestnuts (genus Aesculus), which are not related to Castanea and are named for producing nuts of similar appearance, but which are mildly poisonous to humans, nor should they be confused with water chestnut (family Cyperaceae), which are also unrelated to Castanea and are tubers of similar taste from an aquatic herbaceous plant. Other trees commonly mistaken for chestnut trees are the chestnut oak (Quercus prinus) and the American beech (Fagus grandifolia), both of which are also in Fagaceae.
The name "chestnut" is derived from an earlier English term "chesten nut", which descends from the Old French word chastain (Modern French, châtaigne).
The trees' names are virtually identical in all the most ancient languages of Central Europe: in Breton kistinen for the tree, and kistin for its fruit, in Welsh castan-wydden and sataen, in Dutch kastanje for both the tree and its fruit, in Albanian gështenjë, in Hungarian gesztenye, and many others close to the French châtaigne and to the Latin name chosen for the genus, Castanea.
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Wikipedia