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The toxicity of raw castor beans is due to the presence of ricin. Although the lethal dose in adults is considered to be four to eight seeds, reports of actual poisoning are relatively rare. [ 21 ] According to the Guinness World Records , this is the world's most poisonous common plant.
Ricin (/ ˈ r aɪ s ɪ n / RY-sin) is a lectin (a carbohydrate-binding protein) and a highly potent toxin produced in the seeds of the castor oil plant, Ricinus communis.The median lethal dose (LD 50) of ricin for mice is around 22 micrograms per kilogram of body weight via intraperitoneal injection.
Ricinine is a toxic alkaloid found in the castor plant. [2] It can serve as a biomarker of ricin poisoning. [3] [4] It was first isolated from the castor seeds by Tuson in 1864. [5] [6] Ricinine has insecticidal effects. [7] It sublimes between 170 and 180 °C at 20 mmHg.
Ricin is a plant toxin that is extracted from the beans of the castor oil plant. It is very toxic and even the smallest amounts can be deadly if inhaled, injected or ingested.
Castor oil is a vegetable oil pressed from castor beans, the seeds of the plant Ricinus communis. [1] The seeds are 40 to 60 percent oil. [2] It is a colourless or pale yellow liquid with a distinct taste and odor. Its boiling point is 313 °C (595 °F) and its density is 0.961 g/cm 3. [3]
The 18-year-old has also been charged with producing ricin, a poison found in castor beans, contrary to section one of the Biological Weapons Act 1984. ... Most people impacted by ricin poisoning ...
castor oil plant, castor bean, Palma Christi Euphorbiaceae: The seeds contain ricin, an extremely toxic and water-soluble ribosome-inactivating protein; it is also present in lower concentrations in other parts of the plant. Also present are ricinine, an alkaloid, and an irritant oil.
Castor oil is a type of vegetable oil derived from the seeds of the castor bean plant (ricinus communis), which is naturally found in parts of Africa, India and South America, Dr. Joshua Zeichner ...