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Rapeseed (Brassica napus subsp. Brassicaceae (mustard or cabbage family), cultivated primarily for its oil-wealthy seed (keegantvww78890.azzablog.com), which naturally accommodates appreciable amounts of erucic acid. The term "canola" denotes a bunch of rapeseed cultivars that were bred to have very low levels of erucic acid and which are particularly prized to be used as human and animal food. Rapeseed is the third-largest supply of vegetable oil and the second-largest source of protein meal on the earth. B. napus may be distinguished from B. nigra by the upper leaves which do not clasp the stem, and from B. rapa by its smaller petals that are lower than 13 mm (1⁄2 in) across. Rapeseed flowers are vivid yellow and about 17 mm (2⁄3 in) throughout. They're radial and consist of 4 petals in a typical cross-form, alternating with four sepals. They've indeterminate racemose flowering beginning at the lowest bud and rising upward in the following days.

The flowers have two lateral stamens with brief filaments, and four median stamens with longer filaments whose anthers split away from the flower's center upon flowering. The rapeseed pods are inexperienced and elongated siliquae during growth that finally ripen to brown. 3⁄16 in) lengthy, and can range from 5 to 10 cm (2 to four in) in length. Each pod has two compartments separated by an interior central wall inside which a row of seeds develops. The seeds are round and have a diameter of 1.5 to three mm (1⁄16 to 1⁄8 in). The term "rape" derives from the Latin word for turnip, rāpa or rāpum, cognate with the Greek phrase ῥάφη, rhaphe. The species Brassica napus belongs to the flowering plant household Brassicaceae. Rapeseed is a subspecies with the autonym B. napus subsp. It encompasses winter and spring oilseed, vegetable and fodder rape. Siberian kale is a distinct leaf rape form selection (B. The second subspecies of B. napus is B. napus subsp.

B. napus is a digenomic amphidiploid that occurred because of the interspecific hybridization between B. oleracea and B. rapa. It's a self-appropriate pollinating species like the other amphidiploid Brassica species. In Northern Ireland, B. napus and B. rapa are recorded as escapes in roadside verges and waste floor. Rapeseed is grown for the production of edible vegetable oils, animal feed, and biodiesel. Rapeseed was the third-leading source of vegetable oil on the planet in 2000, after soybean and palm oil. It's the world's second-main source of protein meal after soybean. Rapeseed oil is one of the oldest identified vegetable oils, but historically was utilized in limited portions as a result of excessive ranges of erucic acid, which is damaging to cardiac muscle of animals, and glucosinolates, which made it less nutritious in animal feed. Rapeseed oil can include up to 54% erucic acid. Food-grade oil derived from rapeseed cultivars, often called canola oil or low-erucic-acid rapeseed oil (LEAR oil), has been usually recognized as safe by the United States Food and Drug Administration.

These low ranges of erucic acid are usually not believed to cause harm in human infants. Processing of rapeseed for oil production produces rapeseed meal as a byproduct. The byproduct is a high-protein animal feed, competitive with soybean. Rapeseed is a superb silage crop (fermented and stored in air-tight circumstances for later use as a winterfeed). The feed is employed principally for cattle feeding, but can also be used for pigs and poultry. However, the excessive levels of erucic acid and glucosinolates in pure rapeseed oil considerably lowers the nutritional worth of rapeseed press cakes for animal feed. In China, rapeseed meal is usually used as a soil fertilizer quite than for animal feed. Rapeseed oil is used as diesel gasoline, both as biodiesel, straight in heated fuel techniques, or blended with petroleum distillates for powering motor automobiles. Biodiesel could also be utilized in pure form in newer engines with out engine damage and is continuously combined with fossil-gasoline diesel in ratios varying from 2% to 20% biodiesel.