Enzyme immobilization as a strategy towards efficient and sustainable lignocellulosic biomass conversion into chemicals and biofuels: current status and perspectives

2021 ◽  
Author(s):  
Elisa Zanuso ◽  
Daniel G. Gomes ◽  
Héctor A. Ruiz ◽  
J. A. Teixeira ◽  
Lucilia Domingues
Keyword(s):  
Enzymatic Hydrolysis ◽  
Lignocellulosic Biomass ◽  
Enzyme Immobilization ◽  
Fossil Fuel ◽  
Biomass Conversion ◽  
Environmental Issues ◽  
Current Status ◽  
Lignocellulosic Biomass Conversion ◽  
Near Future ◽  
Urgent Necessity

Environmental issues led to the urgent necessity of research to focus on a fossil fuel detachment in the near future. Under the biorefinery concept, enzymatic hydrolysis is a key bioprocess...

scholarly journals Current Developments in Lignocellulosic Biomass Conversion into Biofuels Using Nanobiotechology Approach

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5300
Author(s):  
Mamata Singhvi ◽  
Beom Soo Kim
Keyword(s):  
Lignocellulosic Biomass ◽  
Enzyme Immobilization ◽  
Enzyme Stability ◽  
Biomass Conversion ◽  
Cost Effective ◽  
Reaction Rates ◽  
Biofuel Production ◽  
Potential Strategy ◽  
Lignocellulosic Biomass Conversion ◽  
Review Current

The conversion of lignocellulosic biomass (LB) to sugar is an intricate process which is the costliest part of the biomass conversion process. Even though acid/enzyme catalysts are usually being used for LB hydrolysis, enzyme immobilization has been recognized as a potential strategy nowadays. The use of nanobiocatalysts increases hydrolytic efficiency and enzyme stability. Furthermore, biocatalyst/enzyme immobilization on magnetic nanoparticles enables easy recovery and reuse of enzymes. Hence, the exploitation of nanobiocatalysts for LB to biofuel conversion will aid in developing a lucrative and sustainable approach. With this perspective, the effects of nanobiocatalysts on LB to biofuel production were reviewed here. Several traits, such as switching the chemical processes using nanomaterials, enzyme immobilization on nanoparticles for higher reaction rates, recycling ability and toxicity effects on microbial cells, were highlighted in this review. Current developments and viability of nanobiocatalysts as a promising option for enhanced LB conversion into the biofuel process were also emphasized. Mostly, this would help in emerging eco-friendly, proficient, and cost-effective biofuel technology.

DOSY NMR: A Versatile Analytical Chromatographic Tool for Lignocellulosic Biomass Conversion

2016 ◽  
Vol 4 (3) ◽  
pp. 1193-1200 ◽  
Author(s):  
Wenzhi Ge ◽  
Jennifer Hongyang Zhang ◽  
Christian Marcus Pedersen ◽  
Tingting Zhao ◽  
Fen Yue ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Biomass Conversion ◽  
Dosy Nmr ◽  
Lignocellulosic Biomass Conversion

Mining of camel rumen metagenome to identify novel alkali-thermostable xylanase capable of enhancing the recalcitrant lignocellulosic biomass conversion

2019 ◽  
Vol 281 ◽  
pp. 343-350 ◽  
Author(s):  
Shohreh Ariaeenejad ◽  
Morteza Maleki ◽  
Elnaz Hosseini ◽  
Kaveh Kavousi ◽  
Ali A. Moosavi-Movahedi ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Biomass Conversion ◽  
Thermostable Xylanase ◽  
Lignocellulosic Biomass Conversion ◽  
Rumen Metagenome

Enzyme systems of thermophilic anaerobic bacteria for lignocellulosic biomass conversion

2021 ◽  
Vol 168 ◽  
pp. 572-590
Author(s):  
Nisha Singh ◽  
Anshu S. Mathur ◽  
Ravi P. Gupta ◽  
Colin J. Barrow ◽  
Deepak K. Tuli ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Biomass Conversion ◽  
Anaerobic Bacteria ◽  
Enzyme Systems ◽  
Lignocellulosic Biomass Conversion

scholarly journals Kinetics and thermodynamics of thermal inactivation for recombinant Escherichia coli cellulases, cel12B, cel8C, and polygalacturonase, peh28; biocatalysts for biofuel precursor production

2020 ◽  
Author(s):  
Eman Ibrahim ◽  
Ahmed Mahmoud ◽  
Kim D Jones ◽  
Keith E Taylor ◽  
Ebtesam N Hosseney ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Thermal Stability ◽  
Lignocellulosic Biomass ◽  
Thermal Inactivation ◽  
Biomass Conversion ◽  
Industrial Applications ◽  
Recombinant Escherichia Coli ◽  
Thermal Stabilities ◽  
Kinetics And Thermodynamics ◽  
Lignocellulosic Biomass Conversion

Abstract Lignocellulosic biomass conversion using cellulases/polygalacturonases is a process that can be progressively influenced by several determinants involved in cellulose microfibril degradation. This article focuses on the kinetics and thermodynamics of thermal inactivation of recombinant Escherichia coli cellulases, cel12B, cel8C and a polygalacturonase, peh 28, derived from Pectobacterium carotovorum sub sp. carotovorum. Several consensus motifs conferring the enzymes’ thermal stability in both cel12B and peh28 model structures have been detailed earlier, which were confirmed for the three enzymes through the current study of their thermal inactivation profiles over the 20–80°C range using the respective activities on carboxymethylcellulose and polygalacturonic acid. Kinetic constants and half-lives of thermal inactivation, inactivation energy, plus inactivation entropies, enthalpies and Gibbs free energies, revealed high stability, less conformational change and protein unfolding for cel12B and peh28 due to thermal denaturation compared to cel8C. The apparent thermal stability of peh28 and cel12B, along with their hydrolytic efficiency on a lignocellulosic biomass conversion as reported previously, makes these enzymes candidates for various industrial applications. Analysis of the Gibbs free energy values suggests that the thermal stabilities of cel12B and peh28 are entropy-controlled over the tested temperature range.

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