Manufacture
Ricin is easily purified from castor oil manufacturing waste. The aqueous phase left over from the oil extraction process is called waste mash. It would contain about 5–10% ricin by weight, but heating during the oil extraction process denatures the protein, making the resultant seed cake safe for use as animal feed. From fresh seed, separation requires chromatographic techniques similar to other plant proteins.
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Famous quotes containing the word manufacture:
“Yes, that’s what I needed. Living flesh from humans for my experiments. What difference did it make if a few people had to die? Their flesh taught me how to manufacture arms, legs, faces that are human. I’ll make a crippled world whole again.”
—Robert Tusker, and Michael Curtiz. Wells (Preston Foster)
“Culture is an instrument wielded by teachers to manufacture teachers, who, in their turn, will manufacture still more teachers.”
—Simone Weil (1909–1943)
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—John Ruskin (1819–1900)