Activity of fungal β-glucosidases on cellulose
نویسندگان
چکیده
منابع مشابه
Selecting β-glucosidases to support cellulases in cellulose saccharification
BACKGROUND Enzyme end-product inhibition is a major challenge in the hydrolysis of lignocellulose at a high dry matter consistency. β-glucosidases (BGs) hydrolyze cellobiose into two molecules of glucose, thereby relieving the product inhibition of cellobiohydrolases (CBHs). However, BG inhibition by glucose will eventually lead to the accumulation of cellobiose and the inhibition of CBHs. Ther...
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BACKGROUND The enzymatic hydrolysis of cellulose is still considered as one of the main limiting steps of the biological production of biofuels from lignocellulosic biomass. It is a complex multistep process, and various kinetic models have been proposed. The cellulase enzymatic cocktail secreted by Trichoderma reesei has been intensively investigated. beta-glucosidases are one of a number of c...
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Cytophaga hutchinsonii can rapidly digest crystalline cellulose without free cellulases or cellulosomes. Its cell-contact cellulose degradation mechanism is unknown. In this study, the four β-glucosidase (bgl) genes in C. hutchinsonii were singly and multiply deleted, and the functions of these β-glucosidases in cellobiose and cellulose degradation were investigated. We found that the constitut...
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Out of various industrial enzymes, thermostable βglucosidases are of great interest, due to their utility in conversion of lingocellulosic material into bioethanol. Determination of the factors responsible for thermostability in β-glucosidases by sequence and structure comparison will be useful in identification, isolation and design of novel thermostable βglucosidases. In the present study the...
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The statistical coupling analysis of 768 β-glucosidases from the GH1 family revealed 23 positions in which the amino acid frequencies are coupled. The roles of these covariant positions in terms of the properties of β-glucosidases were investigated by alanine-screening mutagenesis using the fall armyworm Spodoptera frugiperda β-glycosidase (Sfβgly) as a model. The effects of the mutations on th...
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ژورنال
عنوان ژورنال: Biotechnology for Biofuels
سال: 2020
ISSN: 1754-6834
DOI: 10.1186/s13068-020-01762-4