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A father and son have been arrested in Durham as part of an investigation into terrorism and racial hatred.
A 41-year-old, thought to be involved in extreme right-wing activity, was arrested in Myrtle Grove, Burnopfield, under the Terrorism Act 2000.
The suspected white supremacist was being questioned by counter-terrorism officers on Tuesday.
ok, i am not an expect on Ricin, so i have a few questions
apparently it comes from Castor beans, but how difficult is it to acquire the equipment to purify and separate it?
could he have just done this at the local community college lab overnight?
Ricin is easily purified from castor-oil manufacturing waste. The aqueous phase left over from the oil extraction process is called waste mash. It contains about 5-10% ricin by weight. Separation requires only simple chromatographic techniques.
 Patented extraction process
The process for extracting ricin is well known and has been described in a patent. The described extraction method is very similar to that used for the preparation of soy protein isolates.
The patent was removed from the United States Patent and Trademark Office (USPTO) database sometime in 2004, but it is still available online through international patent databases. Modern theories of protein chemistry cast doubt on the effectiveness of the methods disclosed in the patent.