Posted by dessbee on July 14, 2006, at 9:38:10
In reply to Re: Tryptophan not banned since 1994 » nolvas, posted by JLx on July 10, 2006, at 21:33:51
What is the reason for your insomnia?
Are you depressed?
Do suffer from anxiety?
From Wikipedia, the free encyclopedia:In 1989, a large outbreak of a new, disabling, and in some cases deadly autoimmune illness called eosinophilia-myalgia syndrome (EMS) was traced to L-tryptophan. The bacterial culture used to synthesize tryptophan by a major Japanese manufacturer, Showa Denko KK, had recently been genetically engineered to increase tryptophan production; with the higher tryptophan concentration in the culture medium, the purification process had also been streamlined to reduce costs, and a purification step that used charcoal absorption to remove impurities had been omitted. This allowed another bacterial metabolite through the purification, resulting in the presence of an end-product contaminant responsible for the toxic effects. The FDA was unable to establish with certainty that this was the sole cause of the outbreak. Tryptophan was banned from sale in the US, and other countries followed suit.
poster:dessbee
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URL: http://www.dr-bob.org/babble/alter/20060704/msgs/667004.html