Patent for extracting heparin from pig small intestine

First of all, from the dog's liver, it is found that pig's small intestine, sheep intestine, chicken intestine and pig's lungs are all rich, especially chicken intestine, which is thrown away in many slaughterhouses. You can contact them. Since 1988, some people have invented a new extraction technology of "comprehensive biological method": (1) organically combines the traditional processes of salt hydrolysis, enzymolysis, suction filtration and low-temperature extraction, and uses them. (2) It can completely dissolve the small intestine skin and intestinal membrane, so that a large number of heparin molecules can be completely dissociated, reaching the national environmental protection standard. We have now become the most advanced and reliable producer of heparin sodium in China. On September, 2000, the National Patent Office accepted the invention patent (certificate number: 00 124476.0). And won the national gold medal for patent technology appraisal of scientific and technological achievements. As a result, many old production units and individuals who have worked for more than 10 years have doubled their economic benefits and made more considerable profits after learning new technologies again.