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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 botulinum toxin as the most toxic substance known has an LD 50 value of 1 ng/kg, while the most non-toxic substance water has an LD 50 value of more than 90 g/kg; a difference of about 1 in 100 billion, or 11 orders of magnitude. As with all measured values that differ by many orders of magnitude, a logarithmic view is advisable.
The LD 50 (median lethal dose) for pure oxalic acid in rats is about 375 mg/kg body weight, [29] or about 25 grams for a 65-kilogram (143 lb) human. Although the oxalic acid content of rhubarb leaves can vary, a typical value is about 0.5%, [ 30 ] so almost 5 kg of the extremely sour leaves would have to be consumed to reach the LD 50 .
The little seeds boast an impressive 10 grams of fiber and 5 grams of protein per a 2 tablespoon serving, making them filling and nutritious," Ball says. "Research has shown they can help with ...
Axel Rudakubana, 18, will appear at Westminster Magistrates’ Court by video link on Wednesday charged with production of a biological toxin called ricin
The suspect accused of the fatal stabbing at a Taylor Swift-themed event in the U.K. has been charged with producing poison. During a briefing on Tuesday, October 29, Merseyside Police announced ...
The LD50 for ricin is quoted by Fischer Scientific (their MSDS) as 0.3 mg per kg. For a 70kg adult that works out at 21mg for a fatal dose, the weight of a grain of rice. The pellet metal pellet packed with ricin that killed Georgi Markov measured 1.7 mm diameter (see article), so the ricin payload must have been considerably less than 21mg.
Ex-federal employee pleads guilty to ricin possession Russell Richardson Vane IV, a 42-year-old from Vienna, VA. pleaded guilty last week to possession of the toxin ricin, a test tube of which he ...