- "wring[ing] pulp from pig intestines, then heat[ing] it in concrete vats." This sounds quite gross; in most Chinese factories, it is. (That, by the way, is part of the concern about the lack of regulation in those same factories; four Americans have reportedly died due to faulty or contaminated heparin from China.)
- Next, adding resin "to extract heparin from the pulp."
- Then, adding salt water to separate the resin-heparin mixture, which leads to a salt-water-heparin solution.
- Finally, adding alcohol to remove the salt water. Then, since alcohol is more volatile, it is dried carefully...voila! Raw heparin!
Thursday, February 21, 2008
I found this article (A1) and the accompanying pictures quite interesting from a biological standpoint, if not political or otherwise. The two media detail how China goes about producing its half of the world's heparin. The process, briefly, involves