ricin

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ricin

[′rīs·ən]
(materials)
White, poisonous powder derived from pressed castor oil bran.
References in periodicals archive ?
Ricinine, (1,2-dihydro-4-methoxy-1-methyl-2-oxo-3-pyridinenitrile) a neutral reddish brown crystalline alkaloid has been extracted from the seeds, leaves and flowers of the castor-oil plant (Ricinus communis) [1-3].
population is believed to have similar trace detectible levels of ricinine in their systems.
A Chemistry Unit examiner verified that many of the items retrieved from Olsen's workspace contained traces of ricinine, an alkaloid from the seeds and leaves of the castor plant.
[49] isolated ricinine from the ethyl acetate extract from senescent leaves, the main compound responsible for the toxicity of the crude extract in Spodoptera exigua larvae, thus demonstrating that it could be an alternative choice to chemical insecticides.
Detoxification becomes very necessary because of the presence of some toxic substances (ricin and ricinine) and castor allergens in the raw bean (Olsnes, 2004; Audi et al., 2005; Ani and Okorie, 2006).
To determinate the insecticidal and insectistatic activities of methano, hexane and ethyl acetate extracts of the seeds and leaves of Ricinus communis (Linnaeus, 1753) (Euphorbiaceae), castor oil and ricinine were tested at different concentrations against S.