Preparation of a Biocatalyst Based on Recombinant Cellulolytic Enzymatic Agents Penicillium verruculosum and its Application for Pulp and Paper Industry

Abstract

The studies dealt with the efficiency of a biocatalyst for modifying commercial bleached hardwood sulfate pulp. The biocatalyst was based on recombinant enzymatic agents prepared using Penicillium verruculosum fungus. The influence of the treatment with cellulase complex on the structure, morphology and surface state of cellulose fibers was estimated. It was shown that the biocatalytic treatment of cellulose led to improved beatability and bond-formation in paper sheets, to higher strength. Application of enzymatic modification of cellulose will help to solve some energy- and resource-saving problems in the paper industry.