Fungal Beta-Glucosidases: A Bottleneck in Industrial Use of Lignocellulosic Materials

Profitable biomass conversion processes are highly dependent on the use of efficient enzymes for lignocellulose degradation. Among the cellulose degrading enzymes, beta-glucosidases are essential for efficient hydrolysis of cellulosic biomass as they relieve the inhibition of the cellobiohydrolases...

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Main Authors: Peter S. Lübeck, Birgitte K. Ahring, Mette Lübeck, Annette Sørensen
Format: Article
Language:English
Published: MDPI AG 2013-09-01
Series:Biomolecules
Subjects:
Online Access:http://www.mdpi.com/2218-273X/3/3/612
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author Peter S. Lübeck
Birgitte K. Ahring
Mette Lübeck
Annette Sørensen
author_facet Peter S. Lübeck
Birgitte K. Ahring
Mette Lübeck
Annette Sørensen
author_sort Peter S. Lübeck
collection DOAJ
description Profitable biomass conversion processes are highly dependent on the use of efficient enzymes for lignocellulose degradation. Among the cellulose degrading enzymes, beta-glucosidases are essential for efficient hydrolysis of cellulosic biomass as they relieve the inhibition of the cellobiohydrolases and endoglucanases by reducing cellobiose accumulation. In this review, we discuss the important role beta-glucosidases play in complex biomass hydrolysis and how they create a bottleneck in industrial use of lignocellulosic materials. An efficient beta-glucosidase facilitates hydrolysis at specified process conditions, and key points to consider in this respect are hydrolysis rate, inhibitors, and stability. Product inhibition impairing yields, thermal inactivation of enzymes, and the high cost of enzyme production are the main obstacles to commercial cellulose hydrolysis. Therefore, this sets the stage in the search for better alternatives to the currently available enzyme preparations either by improving known or screening for new beta-glucosidases.
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spelling doaj.art-1c41d9697be34deeb588485b77bbaa1a2022-12-22T02:43:07ZengMDPI AGBiomolecules2218-273X2013-09-013361263110.3390/biom3030612Fungal Beta-Glucosidases: A Bottleneck in Industrial Use of Lignocellulosic MaterialsPeter S. LübeckBirgitte K. AhringMette LübeckAnnette SørensenProfitable biomass conversion processes are highly dependent on the use of efficient enzymes for lignocellulose degradation. Among the cellulose degrading enzymes, beta-glucosidases are essential for efficient hydrolysis of cellulosic biomass as they relieve the inhibition of the cellobiohydrolases and endoglucanases by reducing cellobiose accumulation. In this review, we discuss the important role beta-glucosidases play in complex biomass hydrolysis and how they create a bottleneck in industrial use of lignocellulosic materials. An efficient beta-glucosidase facilitates hydrolysis at specified process conditions, and key points to consider in this respect are hydrolysis rate, inhibitors, and stability. Product inhibition impairing yields, thermal inactivation of enzymes, and the high cost of enzyme production are the main obstacles to commercial cellulose hydrolysis. Therefore, this sets the stage in the search for better alternatives to the currently available enzyme preparations either by improving known or screening for new beta-glucosidases.http://www.mdpi.com/2218-273X/3/3/612beta-glucosidasecellulasebiomasshydrolysisbiofuels
spellingShingle Peter S. Lübeck
Birgitte K. Ahring
Mette Lübeck
Annette Sørensen
Fungal Beta-Glucosidases: A Bottleneck in Industrial Use of Lignocellulosic Materials
Biomolecules
beta-glucosidase
cellulase
biomass
hydrolysis
biofuels
title Fungal Beta-Glucosidases: A Bottleneck in Industrial Use of Lignocellulosic Materials
title_full Fungal Beta-Glucosidases: A Bottleneck in Industrial Use of Lignocellulosic Materials
title_fullStr Fungal Beta-Glucosidases: A Bottleneck in Industrial Use of Lignocellulosic Materials
title_full_unstemmed Fungal Beta-Glucosidases: A Bottleneck in Industrial Use of Lignocellulosic Materials
title_short Fungal Beta-Glucosidases: A Bottleneck in Industrial Use of Lignocellulosic Materials
title_sort fungal beta glucosidases a bottleneck in industrial use of lignocellulosic materials
topic beta-glucosidase
cellulase
biomass
hydrolysis
biofuels
url http://www.mdpi.com/2218-273X/3/3/612
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AT mettelubeck fungalbetaglucosidasesabottleneckinindustrialuseoflignocellulosicmaterials
AT annettesørensen fungalbetaglucosidasesabottleneckinindustrialuseoflignocellulosicmaterials