1.11.1.10 0.3 mM H2O2, 20 h: 58% activity for immobilized enzyme, 43% activity for free enzyme 696905 1.11.1.10 1.5 M urea, 20 h: 99% activity for immobilized enzyme, 68% activity for free enzyme 696905 1.11.1.10 15 mM H2O2, 5 min: complete inactivation of free enzyme 695425 1.11.1.10 30 mM H2O2, 5 min: 80% residual activity for the cross-linked enzyme aggregates 695425 1.11.1.10 addition of poly(ethylene glycol) results in an increase of 57% for interface-bound CPO and 33% for native enzyme 674983 1.11.1.10 addition of polyethyleneimine results in enhancement of storage stability against H2O2 deactivation, but does not affect the operational stability of the enzyme 674983 1.11.1.10 covalently bonded CPO on the mesoporous material SBA-15 exhibits a higher operational stability in a continuously operated fixed-bed reactor compared to a catalyst prepared by physisorption of the enzyme. Chloroperoxidase immobilization into SBA-15 shows a remaining activity of about 9% 712193 1.11.1.10 cross-linked enzyme aggregates exhibit greatly improved stability in the presence of H2O2 699598 1.11.1.10 crystal crosslinking with glutaraldehyde yields a chloroperoxidase preparation with enhanced thermal resistance compared to soluble enzyme 657725 1.11.1.10 di(ethylene glycol) and di(propylene glycol) stabilize the enzyme towards denaturation by H2O2 658334 1.11.1.10 enhanced stability in ionic liquids 677181 1.11.1.10 enzyme immobilized on monoaminoethyl-N-aminoethyl through carbodiimide-coupled method shows an increase in apparent half-life time of more than 500fold that of the soluble enzyme 725740 1.11.1.10 glucose enhances the operational stability by two folds, but exhibits no significant effect on storage stability 674983 1.11.1.10 immobilization of chloroperoxidase to silica gel in order to increase its stability either in buffer solution or in the presence of the oxidant tert-butyl hydroperoxide. The binding between enzyme and silica gel results in a non-homogeneous enzyme population. Existence of three different enzyme populations. Two populations of the immobilized enzyme show an apparent increase in the stability both to the pH or to the presence of the oxidant 675465 1.11.1.10 immobilization of the enzyme on silica gel enhances the stability with respect to the effect of pH and oxidizing agent concentrations 659741 1.11.1.10 immobilized CPO (covalent immobilization of chloroperoxidase on the magnetic p(GMA-MMA-EGDMA) beads) retains 83% of its initial activity after 12 cycles of usage 684944 1.11.1.10 interface-assembled enzyme shows improved stability as compared to native enzyme, enzyme deactivation as a result of the side effect of H2O2, still limits the overall productivity of the enzyme 674983 1.11.1.10 PEG200 and glycerol are the most efficient stabilizer for CPO in temperatures ranging from 25°C to 60°C. Trehalose is more helpful than other sugars for extended storage of CPO 685771 1.11.1.10 stability of the immobilized CPO (covalent immobilization of chloroperoxidase on the magnetic p(GMA-MMA-EGDMA) beads) is improved compared to free form 684944 1.11.1.10 stability studies on the chloroperoxidase complexes in presence of tert-butyl hydroperoxide 658286 1.11.1.10 the catalytic efficiency of free CPO is decreased about 1.6fold upon immobilization. The conjugated-CPO activity on the poly(hydroxypropyl)methacrylateco-poly(ethylene glycol)-methacrylate-3 membrane remains almost the same as the original activity after 9 cycles. After that, a steady decrease in chlorination capability of the conjugated-CPO is observed, and this loss reaches about 27% after 25 cycles of batch operation 711504 1.11.1.10 the enzyme tolerates up to 30% v/v 1,3-dimethylimidazolium methylsulfate or 1-butyl-3-methylimidazolium methylsulfate 658327 1.11.1.10 the thermostability of peroxidase of CPO is increased about 2fold upon these chemical modification by citraconic anhydride, phthalic anhydride or maleic anhydride. The thermostability of sulfoxidation activity of CPO is increased about 1.2fold upon the chemical modification by citraconic anhydride, phthalic anhydride or maleic anhydride 687888