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Optimization of the Composition of Cellulase Enzymatic Complex Penicillium verruculosum: Improvement of the Hydrolytic Ability Using Methods of Genetic Engineering

https://doi.org/10.18412/1816-0387-2015-6-78-83

Abstract

Application of modern technologies of enzymatic hydrolysis of cellulose-containing raw materials makes it possible to obtain sugars that undergo microbiological conversion to synthesize alcohols (biofuels), organic and amino acids, biopolymers, food additives and other value-added products. Cellulolyticus enzymes of three types – endoglucanase, cellobiohydrolase, beta-glucosidase – are required for the bioconversion of cellulose-containing raw material. The present work is aimed at studying a possibility of application of genetic engineering for improvement of the hydrolytic ability of secretory enzyme complex Penicillium verruculosum by adding homologous and the heterologous cellulases in different combinations and ratios – endoglucanase IV (EGIV) from Trichoderma reesei, endoglucanase II (EGII) and cellobiohydrolase I (CBHI) from P. verruculosum, and also beta-glucosidase (b-GLU) from Aspergillus niger. The optimal ratio of components is determined to double the catalytic activity of the new enzyme complexes.

About the Authors

A. P. Sinitsyn
Moscow State University, Moscow; Bach Institute of Biochemistry, RAS, Moscow
Russian Federation


O. G. Korotkova
Bach Institute of Biochemistry, RAS, Moscow
Russian Federation


O. A. Sinitsyna
Moscow State University, Moscow; Bach Institute of Biochemistry, RAS, Moscow
Russian Federation


A. M. Rozhkova
Moscow State University, Moscow; Bach Institute of Biochemistry, RAS, Moscow
Russian Federation


G. S. Dotsenko
Technical University of Denmark, Copenhagen
Denmark


O. V. Proskurina
Moscow State University, Moscow
Russian Federation


D. O. Osipov
Bach Institute of Biochemistry, RAS, Moscow
Russian Federation


E. G. Kondrat’eva
Bach Institute of Biochemistry, RAS, Moscow
Russian Federation


A. V. Chekushina
Bach Institute of Biochemistry, RAS, Moscow
Russian Federation


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Review

For citations:


Sinitsyn A.P., Korotkova O.G., Sinitsyna O.A., Rozhkova A.M., Dotsenko G.S., Proskurina O.V., Osipov D.O., Kondrat’eva E.G., Chekushina A.V. Optimization of the Composition of Cellulase Enzymatic Complex Penicillium verruculosum: Improvement of the Hydrolytic Ability Using Methods of Genetic Engineering. Kataliz v promyshlennosti. 2015;15(6):78-83. (In Russ.) https://doi.org/10.18412/1816-0387-2015-6-78-83

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ISSN 1816-0387 (Print)
ISSN 2413-6476 (Online)