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Broccoli
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Broccoli is a plant of the cabbage family Brassicaceae (formerly Cruciferae).
It is classified as the Italica cultivar group of the species Brassica oleracea. Broccoli possesses abundant arboreal, luscious, fleshy, flower heads, usually green in color, arranged in a tree-like fashion on branches sprouting from a thick, edible, sturdy, meaty stalk. The mass of flower heads is surrounded by lavish leaves. Broccoli most closely resembles cauliflower, which is a different cultivar group of the same species, but broccoli is green while Cauliflower can appear in purple and yellow in addition to the traditional white variety.

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Broccoli is a plant of the cabbage family Brassicaceae (formerly Cruciferae).
It is classified as the Italica cultivar group of the species Brassica oleracea. Broccoli possesses abundant arboreal, luscious, fleshy, flower heads, usually green in color, arranged in a tree-like fashion on branches sprouting from a thick, edible, sturdy, meaty stalk. The mass of flower heads is surrounded by lavish leaves. Broccoli most closely resembles cauliflower, which is a different cultivar group of the same species, but broccoli is green while Cauliflower can appear in purple and yellow in addition to the traditional white variety. In the United States, the term refers exclusively to the form with a single large head. This form is sometimes called "Calabrese" in the United Kingdom, where sprouting (non-heading) types and those with underdeveloped flower buds are also sold as broccoli.
Varieties
There are three commonly grown types of broccoli. The most familiar is sometimes called Calabrese in Great Britain and simply "broccoli" in North America. It has large (10 to 20 cm) green heads and thick stalks and is named after Calabria in Italy. It is a cool season annual crop.
Sprouting broccoli has a larger number of heads with many thin stalks. It is planted in May to be harvested during the winter or early the following year in temperate climates. The heirloom variety "Calabrese" available in North America is of this type.
Romanesco broccoli has a distinctive fractal appearance of its heads, and is yellow-green in colour. It is technically in the Botrytis (cauliflower) cultivar group.
Purple cauliflower is a type of broccoli sold in southern Italy, Spain, and the United Kingdom. It has a head shaped like cauliflower, but consisting of tiny flower buds. It sometimes, but not always, has a purple cast to the tips of the flower buds.
Cultivation, nutritional value, and preparation Broccoli is a cool-weather crop that does poorly in hot summer weather. Broccoli grows best when exposed to an average daily temperature between 65 and 75 degrees Fahrenheit (18 to 23 degrees Celsius).
The majority (99%) of the United States broccoli crop is grown in California and Arizona. Other cultivar groups of Brassica oleracea include cabbage (Capitata Group), cauliflower (Botrytis Group), kale and collard greens (Acephala Group), kohlrabi (Gongylodes Group), and Brussels sprouts (Gemmifera Group). Chinese broccoli (Alboglabra Group) is also a cultivar group of Brassica oleracea.
Broccoli is high in vitamin C and soluble fiber and contains multiple nutrients with potent anti-cancer properties including diindolylmethane and selenium. A single serving provides more than 30 mg of Vitamin C and a half-cup provides 52 mg of Vitamin C . The 3,3'-Diindolylmethane found in broccoli is a potent modulator of the innate immune response system with anti-viral, anti-bacterial and anti-cancer activity. Broccoli also contains the compound glucoraphanin, which can be processed into an anticancer compound sulforaphane, though the benefits of broccoli are greatly reduced if the vegetable is boiled more than ten minutes. A high intake of broccoli has been found to reduce the risk of aggressive prostate cancer. Broccoli leaf is also edible and contains far more betacarotene than the florets.
Broccoli is usually boiled or steamed, but may be eaten raw and has become popular as a raw vegetable in hors-d'oeuvre trays. Although boiling has been shown to reduce the levels of suspected anticancer compounds in broccoli, other preparation methods such as steaming, microwaving, and stir-frying have been shown not to reduce the presence of these compounds.
Broccoli is also high in vitamin K.
Production
FAO reports that in 2008, China and India were the top producers of cauliflower and broccoli. About half of all cauliflower is raised in China and one fourth in India. In Europe, production has been in Spain since about 1990. In North America, production is primarily in California. The seasonal average f.o.b. shipping-point price for cauliflower in 2004 was $33.00 per 100 pounds ($0.73/kg) according to the National Agricultural Statistics Service, USDA.
Gallery
External links
- , USDA/ARS Vegetable Laboratory
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