Cellulase preparation Celluzyme 0.7T was immobilized on silica gels using standard sol-gel procedure. To compare the properties and activity of immobilized enzymes, gels were dried by two different drying routes: conventionally in the air at 40°C (xerogels) and supercritically with CO_2 at 40°C and 100 bar (aerogels). The properties of enzyme preparations in the form of aerogel and xerogel were compared at atmospheric pressure and at the same time with the properties of crude enzyme preparation. Study of cellulase preparation (Celluzyme 0.7T) activity in three different forms in SC CO_2 will be reported. The aerogel and xerogel cellulase preparations were successfully reused many times in the high-pressure batch system.
展开▼
