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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.
The fruit is a spiny, greenish (to reddish-purple) capsule containing large, oval, shiny, bean-like, highly poisonous seeds with variable brownish mottling. Castor seeds have a warty appendage called the caruncle, which is a type of elaiosome. The caruncle promotes the dispersal of the seed by ants (myrmecochory).
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.
Castor bean has bold, tropical-looking foliage and spiny capsules. At maturity, the capsules split open to reveal tan seeds marbled with dark brown, which contain the potent toxin ricin.
Axel Rudakubana, 18, will appear at Westminster Magistrates’ Court by video link on Wednesday charged with production of a biological toxin called ricin
One month before the fire, police responded to the Prairie Village home for a domestic disturbance and found castor beans in Green’s purse. When processed, the seeds produce ricin, one of the ...
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]
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 ...