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Concept
Elaeis
Summary
Elaeis () is a genus of palms containing two species, called oil palms. They are used in commercial agriculture in the production of palm oil. The African oil palm E. guineensis (from Guinea) is the principal source of palm oil. It is native to west and southwest Africa, occurring between Angola and Gambia. The American oil palm E. oleifera () is native to tropical Central and South America, and is used locally for oil production.
Mature palms are single-stemmed, and can grow well over tall. The leaves are pinnate, and reach between long. The flowers are produced in dense clusters; each individual flower is small, with three sepals and three petals.
The palm fruit is reddish, about the size of a large plum, and grows in large bunches. Each fruit is made up of an oily, fleshy outer layer (the pericarp), with a single seed (the palm kernel), also rich in oil.
The two species, E. guineensis and E. oleifera can produce fertile hybrids. The genome of E. guineensis has been sequenced, which has important implications for breeding improved strains of the crop plants.
Palm oil
Since palm oil contains more saturated fats than oils made from canola, corn, linseed, soybeans, safflower, and sunflowers, it can withstand extreme deep-frying heat and resists oxidation. It contains no trans fat, and its use in food has increased as food-labelling laws have changed to specify trans fat content. Oil from Elaeis guineensis is also used as biofuel.
Human use of oil palms may date back to about 5,000 years in coastal west Africa. Palm oil was also discovered in the late 19th century by archaeologists in a tomb at Abydos dating back to 3000 BCE. It is thought that Arab traders brought the oil palm to Egypt.
Elaeis guineensis is now extensively cultivated in tropical countries outside Africa, particularly Malaysia and Indonesia which together produce most of the world supply.
Elaeis was found to be a cheap source of nanofiber by Fahma et al 2010. It is especially suited to production in Indonesia where cellulosic waste is already an abundant byproduct.
Official source
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