Citrus paradisi
| Grapefruit | |
|---|---|
 |
|
| Pink grapefruit | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Sapindales |
| Family: | Rutaceae |
| Genus: | Citrus |
| Species: | C. × paradisi |
| Binomial name | |
|
Citrus × paradisi Macfad. |
|
| Nutritional value per 100 g (3.5 oz) | |
|---|---|
| Energy | 138 kJ (33 kcal) |
|
8.41 g
|
|
| Sugars | 7.31 g |
| Dietary fiber | 1.1 g |
|
0.10 g
|
|
|
.8 g
|
|
| Vitamins | |
| Thiamine (B1) |
(3%)
0.037 mg |
| Riboflavin (B2) |
(2%)
0.020 mg |
| Niacin (B3) |
(2%)
0.269 mg |
| Pantothenic acid (B5) |
(6%)
0.283 mg |
| Vitamin B6 |
(3%)
0.043 mg |
| Folate (B9) |
(3%)
10 μg |
| Choline |
(2%)
7.7 mg |
| Vitamin C |
(40%)
33.3 mg |
| Vitamin E |
(1%)
0.13 mg |
| Minerals | |
| Calcium |
(1%)
12 mg |
| Iron |
(0%)
0.06 mg |
| Magnesium |
(3%)
9 mg |
| Manganese |
(1%)
0.013 mg |
| Phosphorus |
(1%)
8 mg |
| Potassium |
(3%)
148 mg |
| Zinc |
(1%)
0.07 mg |
| Other constituents | |
| Water | 90.48 g |
|
|
|
|
|
| Percentages are roughly approximated using US recommendations for adults. Source: USDA Nutrient Database |
|
The grapefruit (Citrus × paradisi) is a subtropical citrus tree known for its sour to semi-sweet somewhat bitter fruit . Grapefruit is a hybrid originating in Barbados as an accidental cross between two introduced species, sweet orange (C. sinensis) and pomelo or shaddock (C. maxima), both of which were introduced from Asia in the seventeenth century. When found, it was named the “forbidden fruit”; and it has also been misidentified with the pomelo.
The grapefruit's name alludes to clusters of the fruit on the tree, which often appear similar to grapes.
The evergreen grapefruit trees usually grow to around 5–6 meters (16–20 ft) tall, although they can reach 13–15 m (43–49 ft). The leaves are glossy dark green, long (up to 15 centimeters (5.9 in)) and thin. It produces 5 cm (2 in) white four-petaled flowers. The fruit is yellow-orange skinned and generally an oblate spheroid in shape; it ranges in diameter from 10–15 cm (3.9–5.9 in). The flesh is segmented and acidic, varying in color depending on the cultivars, which include white, pink and red pulps of varying sweetness (generally, the redder varieties are sweeter). The 1929 US Ruby Red (of the Redblush variety) has the first grapefruit patent.
One ancestor of the grapefruit was the Jamaican sweet orange (Citrus sinensis), itself an ancient hybrid of Asian origin; the other was the Indonesian pomelo (C. maxima). One story of the fruit's origins is that a certain "Captain Shaddock" brought pomelo seeds to Jamaica and bred the first fruit. However, it probably originated as a naturally occurring hybrid between the two plants some time after they had been introduced.
FORBIDDEN-FRUIT-TREE
The Trunk, Leaves, and Flowers of this Tree, very much resemble
those of the Orange-tree.
The Fruit, when ripe, is something longer and larger than the largest
Orange; and exceeds, in the Delicacy of its Taste, the Fruit of every
Tree in this or any of our neighbouring Islands.
It hath somewhat of the Taste of a Shaddock; but far exceeds that, as
well as the best Orange, in its delicious Taste and Flavour.
...
Wikipedia