castor bean

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Related to castor beans: castor oil

castor bean,

bean produced by Ricinus communis, a plant of the spurgespurge
, common name for members of the Euphorbiaceae, a family of herbs, shrubs, and trees of greatly varied structure and almost cosmopolitan distribution, although most species are tropical. In the United States the family is most common in the Southeast.
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 family, widely cultivated as an ornamental. Moles die when they eat the roots. It has long been used as an ordealordeal,
ancient legal custom whereby an accused person was required to perform a test, the outcome of which decided the person's guilt or innocence. By an ordeal, appeal was made to divine authority to decide the guilt or innocence of one accused of a crime or to choose between
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 poison in parts of Africa. Ricin, the toxic protein found in the bean seeds, can be extracted and used as a poison or chemical weapon, but it is not as poisonous or as readily absorbed as other such weapons. Castor oilcastor oil,
yellowish oil obtained from the seed of the castor bean. The oil content of the seeds varies from about 20% to 50%. After the hulls are removed the seeds are cold-pressed.
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 is also extracted from the beans.

castor bean

[′kas·tər ‚bēn]
(botany)
The seed of the castor oil plant (Ricinus communis), a coarse, erect annual herb in the spurge family (Euphorbiaceae) of the order Geraniales.
References in periodicals archive ?
Equilibrium moisture content of castor beans for desorption and adsorption processes were determined by the gravimetric method in an oven at 105 [+ or -] 1 [degrees]C, for a 24 h period, in triplicate, according to the seed analysis standard of Brazil (Brasil, 2009).
A major downfall of their use in the diet is the presence of high levels of lignin in some byproducts, such as sunflower and castor beans, which most likely negatively influence the degradation of fiber and non-fiber (Mizubuti et al.
Ricin is a protein that is found in the seeds of the castor bean plant, the same plant that yields castor oil.
Several recipes for extracting ricin from castor beans are
The buyer added that the acquired firm had signed a memorandum of understanding with the governments of Vietnam and Laos for two agricultural projects for growing castor beans to be used for a vegetable oil used in biofuel.
A special blend of hypoallergenic emollients of organic jojoba oil and castor beans helps skin stay hydrated for 24 hours, continually smoothing out the skin's surface.
If castor beans are chewed and swallowed, the released ricin can cause injury.
Like all plants, you wonder who on earth first discovered the method -- and how many deaths there were before someone found that capers could be eaten but ricin-producing castor beans, which also grow wild on the hillside above, kill you.
Carbon neutral EcoPaXX has been shown to be 100 per cent carbon neutral from cradle to gate, which means that the carbon dioxide which is generated during the production process of the polymer is fully compensated by the amount of carbon dioxide absorbed in the growth phase of the castor beans.