Enhancement of fibrinolytic enzyme production from Bacillus subtilis via immobilization process onto radiation synthesized starch/dimethylaminoethyl methacrylate hydrogel

► B. subtilis immobilized within Starch/DMAEMA hydrogels prepared by γ-rays. ► The immobilized cells show a maximum activity at pH 8 and 40 °C. ► The immobilized cells attain four times production higher than free cells.