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Related Experiment Video

Updated: Jun 26, 2026

Ammonia Fiber Expansion (AFEX) Pretreatment of Lignocellulosic Biomass

Ammonia Fiber Expansion (AFEX) Pretreatment of Lignocellulosic Biomass

Published on: April 18, 2020

Multimeric hemicellulases facilitate biomass conversion.

Zhanmin Fan¹, Kurt Wagschal, Wei Chen

¹Department of Plant and Soil Sciences, and Kentucky Tobacco Research and Development Center, University of Kentucky, Cooper and University Drives, Lexington, KY 40546, USA.

Applied and Environmental Microbiology

|January 20, 2009

Summary

This summary is machine-generated.

New trifunctional hemicellulases were created by combining xylanase, arabinofuranosidase, and xylosidase enzymes. These engineered enzymes show enhanced synergistic activity for breaking down plant biomass like corn stover.

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Published on: September 15, 2015

GENPLAT: an Automated Platform for Biomass Enzyme Discovery and Cocktail Optimization

GENPLAT: an Automated Platform for Biomass Enzyme Discovery and Cocktail Optimization

Published on: October 24, 2011

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Ammonia Fiber Expansion (AFEX) Pretreatment of Lignocellulosic Biomass

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High-throughput Screening of Recalcitrance Variations in Lignocellulosic Biomass: Total Lignin, Lignin Monomers, and Enzymatic Sugar Release

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GENPLAT: an Automated Platform for Biomass Enzyme Discovery and Cocktail Optimization

GENPLAT: an Automated Platform for Biomass Enzyme Discovery and Cocktail Optimization

Published on: October 24, 2011

Area of Science:

Biochemistry
Enzymology
Biotechnology

Background:

Hemicellulases are crucial enzymes for biomass degradation.
Developing efficient enzymes for lignocellulosic biomass processing is essential for biofuel and biochemical production.
Multifunctional enzymes offer potential for improved catalytic efficiency and process simplification.

Purpose of the Study:

To construct and characterize novel trifunctional hemicellulases.
To investigate the synergistic effects of combining xylanase, arabinofuranosidase, and xylosidase activities within a single enzyme.
To evaluate the performance of these engineered enzymes in the hydrolysis of natural xylans and corn stover.

Main Methods:

Gene fusion techniques were employed to link the catalytic domains of xylanase, arabinofuranosidase, and xylosidase.
Flexible peptide linkers and linkers incorporating a cellulose-binding domain were utilized.
Enzyme activity assays were performed to assess individual and combined functionalities.
Hydrolysis of natural xylans and corn stover was conducted to evaluate synergistic effects.

Main Results:

Two highly active trifunctional hemicellulases were successfully constructed.
The engineered enzymes retained the catalytic properties of their parental counterparts.
Synergistic effects were observed in the hydrolysis of both natural xylans and corn stover.
Enzymes with cellulose-binding domains showed potential for enhanced substrate interaction.

Conclusions:

Trifunctional hemicellulases can be effectively engineered by combining different enzymatic activities.
These multifunctional enzymes exhibit synergistic action, leading to improved hydrolysis of complex biomass.
The design of such enzymes holds promise for more efficient and cost-effective biomass conversion processes.