Abstract
The recovery of heparin from the porcine intestinal mucosa by using the ion exchange resin was studied. The procedure involved the following steps: alkaline hydrolysis, ion exchange resin adsorption, and elution. The activity of heparin was measured by an antifactor Xa assay. The ammonium chloride/ammonium hydroxide was used as a buffer, and the effect of salt concentration on the adsorption efficiency was evaluated. The results showed that the highest heparin yield (86.17%) was achieved at the lowest concentration of ammonium chloride. The pseudo-first-order model was shown as more adequate to describe heparin adsorption onto the resin.
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