Abstract
The effect of the type of polysaccharide support for immobilization and encapsulation on the stability of chymotrypsin was studied. The synthesized biocatalysts were compared according to their proteolytic activity. The cellulose–chitosan composite was found to have the highest proteolytic activity equal to 192 units/g. Immobilization was found to slightly change the optimum temperature and pH of chymotrypsin, but they substantially grew toward higher temperatures and alkaline pH values. The greatest relative increase in the activity of immobilized chymotrypsin was observed when using the cellulose–chitosan composite. The activity of chymotrypsin changed by no more than 45–50% during storage of the cellulose–chitosan and cellulose–alginate composites for 24 months. According to the results of our study, the cellulose–chitosan composite was the optimum support for immobilization of chymotrypsin.
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Krasnoshtanova, A.A., Bezyaeva, A.D. Comparative Analysis of the Properties of Biocatalysts Based on Chymotrypsin Immobilized on Polysaccharide Supports. Catal. Ind. 14, 395–400 (2022). https://doi.org/10.1134/S2070050422040043
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DOI: https://doi.org/10.1134/S2070050422040043