[The action of gamma irradiation on trypsin immobilized on a modified polypropylene textile material].

In studying the proteolytic activity and ESR spectra of gamma-irradiated samples of trypsin immobilized at an inoculated copolymer of polypropylene with polyacrylic acid it was established that the carrier of a modified polypropylene increases the radioresistance of trypsin immobilized on it.

[Study on the kinetics of isolation of trypsin immobilized on dialdehyde cellulose during hydrolytic destruction].

The kinetics of isolation of trypsin immobilized on a dialdehyde cellulose carrier in buffer solutions with pH 7.0 and 8.0 was studied.

[Transformation of free radicals of gamma-irradiated enzymes during long-term storage].

The ESR method was used to study free radical processes occurring in gamma-irradiated enzymes upon their long-term storage (up to 4 years) both at room temperature and at 4 degrees C. Simultaneously, studied was the biological activity of gamma-irradiated enzymes subjected to a long-term storage. The immobilization of enzymes on dialdehyde cellulose or polycaproamine was shown to preserve their biological activity during the postirradiation storage.