Biomass Hydrolyzing Enzymes

Biomass Hydrolyzing Enzymes
Author: Reeta Rani Singhania
Publisher: CRC Press
Total Pages: 197
Release: 2024-05-06
Genre: Science
ISBN: 1003851827

This reference book provides advanced knowledge about lignocellulosic biomass production and its application in biomass hydrolysis. Lignocellulosic biomass is the most abundant, ubiquitous, and renewable raw material in the world. Though biomass can be deconstructed by other means, biological ways through enzymes are eco-friendly and sustainable. Biomass Hydrolyzing Enzymes: Basics, Advancements, and Applications discusses the different enzymes used for degrading biomass into its monomeric components. It covers important topics like biorefineries, hydrolysis of algal mass, kinetic modelling for hydrolysis, inhibitory effects, and more. Key Features Highlights recent developments in biorefineries, specific enzymes, inhibitor tolerance, and enhanced efficiencies Provides details on various kinds of biomass hydrolysis including algal biomass Includes the best practices for getting economic and efficient high conversions of biomass Covers strategies to be adopted for increasing the production of highly efficient enzymes Explores the advancements in lignocellulosic biomass hydrolysis The book is suitable for researchers and students in biotechnology, applied microbiology, and environmental sciences.

Microbial Enzymes in Bioconversions of Biomass

Microbial Enzymes in Bioconversions of Biomass
Author: Vijai Kumar Gupta
Publisher: Springer
Total Pages: 345
Release: 2016-10-25
Genre: Technology & Engineering
ISBN: 3319436791

This volume summarizes our current knowledge on different biomass-converting enzymes and their potential use in converting biomass into simple sugar to generate bioenergy and other value added co-/by products. It consists of 13 chapters and is divided into three parts: cellulases; hemicellulases; and lignocellulose oxidoreductases. Written by international experts, the contributions offer clear and concise descriptions of both standard and new technologies. It is an invaluable reference resource for undergraduates, post-graduates, researchers and practitioners in the field of microbial enzymes for biofuel and biorefinery applications.

Enzymes in the Valorization of Waste

Enzymes in the Valorization of Waste
Author: Pradeep Verma
Publisher: CRC Press
Total Pages: 269
Release: 2022-12-19
Genre: Science
ISBN: 1000683141

Enzymes play a vital role in the enzymatic hydrolysis of waste for its conversion to useful value-added products. Enzymatic Hydrolysis of Waste for Development of Value-added Products focusses on the role of key enzymes such as cellulase, hemicellulases, amylases, and auxiliary enzymes (LMPOs), used in the hydrolysis step of the biorefinery setup. Further, it discusses the role of enzymes in the generation of reducing sugars and value-added compounds, with major emphasis on recent advances in the field. The mechanism, importance, type, evolution, and role of enzymes in hydrolysis constitute the crux of this volume, which is illustrated with examples and pertinent case studies. Features: • Explores the role of hydrolyzing enzymes in the breakdown and transformation of biomass hydrolysis. • Discusses the potential of auxiliary enzymes (LPMOs) for enhancing hydrolysis potential. • Covers recent developments in the field of enzymatic-assisted hydrolysis of waste for conversion of waste to value-added products. • Deliberates all possible products that can be generated from enzymatic hydrolysis of waste and their potential utilization. • Elucidates the limitations and advantages of enzyme-based hydrolysis and possible strategies for moving from the laboratory to large scale industries. This book is aimed at graduate students, researchers and related industry professionals in biochemical engineering, environmental science, wastewater treatment, biotechnology, applied microbiology, biomass-based biorefinery, biochemistry, green chemistry, sustainable development, waste treatment, enzymology, microbial biotechnology, and waste valorization.

Lignocellulose Conversion

Lignocellulose Conversion
Author: Vincenza Faraco
Publisher: Springer Science & Business Media
Total Pages: 207
Release: 2013-06-12
Genre: Science
ISBN: 3642378617

Bioethanol has been recognized as a potential alternative to petroleum-derived transportation fuels. Even if cellulosic biomass is less expensive than corn and sugarcane, the higher costs for its conversion make the near-term price of cellulosic ethanol higher than that of corn ethanol and even more than that of sugarcane ethanol. Conventional process for bioethanol production from lignocellulose includes a chemical/physical pre-treatment of lignocellulose for lignin removal, mostly based on auto hydrolysis and acid hydrolysis, followed by saccharification of the free accessible cellulose portions of the biomass. The highest yields of fermentable sugars from cellulose portion are achieved by means of enzymatic hydrolysis, currently carried out using a mix of cellulases from the fungus Trichoderma reesei. Reduction of (hemi)cellulases production costs is strongly required to increase competitiveness of second generation bioethanol production. The final step is the fermentation of sugars obtained from saccharification, typically performed by the yeast Saccharomyces cerevisiae. The current process is optimized for 6-carbon sugars fermentation, since most of yeasts cannot ferment 5-carbon sugars. Thus, research is aimed at exploring new engineered yeasts abilities to co-ferment 5- and 6-carbon sugars. Among the main routes to advance cellulosic ethanol, consolidate bio-processing, namely direct conversion of biomass into ethanol by a genetically modified microbes, holds tremendous potential to reduce ethanol production costs. Finally, the use of all the components of lignocellulose to produce a large spectra of biobased products is another challenge for further improving competitiveness of second generation bioethanol production, developing a biorefinery.

Waste to Wealth

Waste to Wealth
Author: Reeta Rani Singhania
Publisher: Springer
Total Pages: 525
Release: 2017-12-07
Genre: Science
ISBN: 9811074313

This book focuses on value addition to various waste streams, which include industrial waste, agricultural waste, and municipal solid and liquid waste. It addresses the utilization of waste to generate valuable products such as electricity, fuel, fertilizers, and chemicals, while placing special emphasis on environmental concerns and presenting a multidisciplinary approach for handling waste. Including chapters authored by prominent national and international experts, the book will be of interest to researchers, professionals and policymakers alike.

Biomass, Biofuels, Biochemicals

Biomass, Biofuels, Biochemicals
Author: Sudhir P. Singh
Publisher: Elsevier
Total Pages: 481
Release: 2020-04-03
Genre: Technology & Engineering
ISBN: 0128198214

Advances in Enzyme Catalysis and Technologies intends to provide the basic structural and functional descriptions, and classification of enzymes. The scientific information related to the recombinant enzyme modifications, discovery of novel enzymes and development of synthetic enzymes are also presented. The translational aspects of enzyme catalysis and bioprocess technologies are illustrated, by emphasizing the current requirements and future perspectives of industrial biotechnology. Several case studies are included on enzymes for biofuels application, micro algal biorefineries, high-value bioactive molecules production and enzymes for environmental processes, such as enzymatic bioprocessing for functional food development, biocatalytic technologies for the production of functional sweetener, etc. Provides a conceptual understanding of enzyme catalysis, enzyme engineering, discovery of novel enzymes, and technology perspectives Includes comprehensive information about the inventions and advancement in enzyme system development for biomass processing and functional food developmental aspects Gives an updated reference for education and understanding of enzyme technology

Bioalcohol Production

Bioalcohol Production
Author: Keith W. Waldron
Publisher: Elsevier
Total Pages: 497
Release: 2010-05-24
Genre: Technology & Engineering
ISBN: 1845699610

Bioethanol is one of the main biofuels currently used as a petroleum-substitute in transport applications. However, conflicts over food supply and land use have made its production and utilisation a controversial topic. Second generation bioalcohol production technology, based on (bio)chemical conversion of non-food lignocellulose, offers potential advantages over existing, energy-intensive bioethanol production processes. Food vs. fuel pressures may be reduced by utilising a wider range of lignocellulosic biomass feedstocks, including energy crops, cellulosic residues, and, particularly, wastes. Bioalcohol production covers the process engineering, technology, modelling and integration of the entire production chain for second generation bioalcohol production from lignocellulosic biomass. Primarily reviewing bioethanol production, the book’s coverage extends to the production of longer-chain bioalcohols which will be elemental to the future of the industry. Part one reviews the key features and processes involved in the pretreatment and fractionation of lignocellulosic biomass for bioalcohol production, including hydrothermal and thermochemical pretreatment, and fractionation to separate out valuable process feedstocks. Part two covers the hydrolysis (saccharification) processes applicable to pretreated feedstocks. This includes both acid and enzymatic approaches and also importantly covers the development of particular enzymes to improve this conversion step. This coverage is extended in Part three, with chapters reviewing integrated hydrolysis and fermentation processes, and fermentation and co-fermentation challenges of lignocellulose-derived sugars, as well as separation and purification processes for bioalcohol extraction. Part four examines the analysis, monitoring and modelling approaches relating to process and quality control in the pretreatment, hydrolysis and fermentation steps of lignocellulose-to-bioalcohol production. Finally, Part five discusses the life-cycle assessment of lignocellulose-to-bioalcohol production, as well as the production of valuable chemicals and longer-chain alcohols from lignocellulosic biomass. With its distinguished international team of contributors, Bioalcohol production is a standard reference for fuel engineers, industrial chemists and biochemists, plant scientists and researchers in this area. Provides an overview of the life-cycle assessment of lignocelluloses-to-bioalcohol production Reviews the key features and processes involved in the pre-treatment and fractionation of lignocellulosic biomass for bioalcohol production Examines the analysis, monitoring and modelling approaches relating to process and quality control in pre-treatment, hydrolysis and fermentation

Sustainable Degradation of Lignocellulosic Biomass

Sustainable Degradation of Lignocellulosic Biomass
Author: Anuj Chandel
Publisher: BoD – Books on Demand
Total Pages: 288
Release: 2013-05-15
Genre: Technology & Engineering
ISBN: 9535111191

This book provides important aspects of sustainable degradation of lignocellulosic biomass which has a pivotal role for the economic production of several value-added products and biofuels with safe environment. Different pretreatment techniques and enzymatic hydrolysis process along with the characterization of cell wall components have been discussed broadly. The following features of this book attribute its distinctiveness: This book comprehensively covers the improvement in methodologies for the biomass pretreatment, hemicellulose and cellulose breakdown into fermentable sugars, the analytical methods for biomass characterization, and bioconversion of cellulosics into biofuels. In addition, mechanistic analysis of biomass pretreatment and enzymatic hydrolysis have been discussed in details, highlighting key factors influencing these processes at industrial scale.

Optimal Control Theory

Optimal Control Theory
Author: Donald E. Kirk
Publisher: Courier Corporation
Total Pages: 466
Release: 2012-04-26
Genre: Technology & Engineering
ISBN: 0486135071

Upper-level undergraduate text introduces aspects of optimal control theory: dynamic programming, Pontryagin's minimum principle, and numerical techniques for trajectory optimization. Numerous figures, tables. Solution guide available upon request. 1970 edition.

Optimization of Enzymatic Hydrolysis of Lignocellulosic Biomass

Optimization of Enzymatic Hydrolysis of Lignocellulosic Biomass
Author: Vandana Rana
Publisher:
Total Pages:
Release: 2013
Genre:
ISBN:

Enzyme cost and hydrolytic efficiency are two crucial parameters when selecting enzymes for depolymerization of lignocellulosic biomass. Although a myriad of research efforts have been made by commercial companies and research institutions to find ways to produce enzymes with high hydrolytic efficiency at minimal production cost, there is still a lack of information on how to produce a low-cost enzyme mixture with high activity. A key challenge for use of these enzymes is the lack of optimization of amount of enzyme needed and for finding ways to produce cheaper enzymes on-site.