Process for the physical depolymerization of glycosaminoglycanes and products obtained therefrom

A dynamic irradiation process for the depolymerization of heparin wherein the depolymerized heparin has a Mw less than or equal to 50% of the original Mw of said heparin prior to depolymerization, said dynamic irradiation process comprising exposing said heparin in solution at a concentration between 2 and 25% w/v to UV radiation having a peak of from 245 nm to 260 nm for a sufficient time to reduce the Mw of the depolymerized heparin by at least 50% as compared with the Mw of said heparin prior to said exposure to UV radiation.