Lignocellulose Biotechnology


Book Description

The agricultural and forestry processing wastes (lignocellulosics) are an important material resource and energy source. However, if untreated they can pose a danger to the environment and potentially valuable resources. Microorganisms contribute significantly to solving the problem of biomass degradation, its recycling and conservation. In the recent years, an increasing interest shown by the textile, food, feed & pulp, and paper industries in the microbial and enzymatic processes has triggered in-depth studies of lignocellulolytic microorganisms and their enzymes. Moreover, the advent of recombinant DNA technology in the late 1970s further paved the way for developing technologies based on lignocellulolytic microbes and enzymes. Lignocellulose Biotechnology presents a comprehensive review of the research directed towards environmentally friendly agricultural and forest by-products. The book comprises 22 chapters, divided in four sections. It deals with a wide range of topics including biodiversity of lignocellulose degrading microorganisms and their enzymes, molecular biology of biodegradation of lignin, characterization of lignocellulolytic enzymes, bioconversion of plant biomass to produce enzymes, animal feed, bioethanol and industrial applications of lignocellulolytic enzymes. The chapters dealing with industrial applications also address current biotechnological approaches in lignocellulose bioconversion to value added products. This book is essential for students, researchers, scientists, and engineers working in the fields of environmental microbiology, environmental biotechnology, life sciences, waste management, and biomaterials.




Biotechnology of Lignocellulose


Book Description

This book presents and summarizes the new thoughts, new methods and new achievements that have emerged in the biotechnology of lignocellulose in recent years. It proposes new concepts including the primary refining, fractionation, multi-level utilization and selective structural separation of lignocellulose, etc. By approaching lignocellulose as a multi-level resource, biotechnology could have a significant effect on ecological agriculture, bio-energy, the chemical and paper making industries, etc., ultimately establishing distinctive eco-industrial parks for lignocellulose. Additionally, this book provides systematic research methods for the biotechnology of lignocellulose including investigation methods for the primary refining of lignocellulose, for microbial degradation and enzymatic hydrolysis, for cellulose fermentation and for lignocellulose conversion processes. It offers an excellent reference work and guide for scientists engaging in research on lignocellulose. Dr. Hongzhang Chen is a Professor at the Institute of Process Engineering of the Chinese Academy of Sciences, Beijing, China.




Lignocellulosic Biomass in Biotechnology


Book Description

Lignocellulosic Biomass in Biotechnology highlights significant aspects of lignocellulose biotechnology, demonstrating its potential value from an application perspective. Sections cover the physico-chemical characteristics of lignocellulosic biomass, the physical and structural properties of hemicelluloses, celluloses and lignin, sources of lignocellulosic biomass , microorganisms and their lignocellulytic enzymes, enzymatic degradation of lignocellulosic biomass, regulation of cell-wall degrading enzymes, barriers to lignocellulose biodegradation, biotechnological importance of lignocellulosic biomass, lignocellulosic pretreatment techniques, bioprocessing of lignocellulosic biomass, lignocellulosic biomass pretreatment methods, valuable chemicals and products, techno-economic evaluation and future perspectives. This book answers questions surrounding the biotechnology of lignocelluloses. It is ideal for both students and professionals in the industry supply chain. It also provides a reference for researchers and administrators engaged in the utilization and industrial development of agricultural resources. Presents recent advances in the processing of lignocellulosic biomass Highlights significant aspects of lignocelluloses biotechnology, with an emphasis on its potential value from an application perspective Looks at the cost of enzymes and the potential of modern approaches that could be employed to reduce the cost Summarizes the new achievements that have emerged in the biotechnology of lignocelluloses in recent years Discusses a wide range of topics related to the fundamental and applied aspects of lignocellulose utilization, processing and biotechnological applications




Lignocellulose


Book Description

This book is focused on new developments in lignocellulose research. In particular, lignocellulosic biomass has been the focus of considerable attention for the production of a wide range of valuable products in biorefineries which aim to utilize renewable starting material instead of fossil based products. The authors focus on the usage of hemicellulose to produce various bio-based products including platform chemicals that have considerable market potential in the coming years. Other chapters in the book review studies which have explored how the lignocellulose morphological structure affects the enzymatic hydrolysis reaction and the corresponding plant cell wall structural changes. Other chapters describe the state-of-the-art of pretreatment processes, fermentation processes, microbial lipid accumulation pathway and methanolysis of the microbial lipids to increase the yields of biodiesel as well as the challenges associated with the use of lignocellulosic biomass (LCB); the ways in which membrane technology has been gaining widespread recognition to substitute the existing separation and purification technologies, specifically, the applications of ionic liquid based membranes; and the quantitative composition of secretome of potent biomass hydrolyzing fungi along with their post translational modifications and also the role of PTMs.




Lignocellulose for Future Bioeconomy


Book Description

Lignocellulose for Future Bioeconomy discusses the conversion and utilization of lignocellulosic biomass. This book focuses on the utilization of lignocelluloses for various products, including biopolymers, bionanomaterials and bioproducts. Recent findings in scientific investigation, engineering, product development, economic and lifecycle analysis are discussed, as are current synthesis technologies and potential applications. The book progresses from a discussion of the potential sources of biomass, to the refinement and processing of materials. A sampling of various sustainability issues faced by industries in their production methods and a look at real world examples of the use of lignocellulose-based materials in the bioeconomy round out the discussion. Presents information on lignocellulosic biomass management and its utilization for the production of bioproducts, biopolymers and bionanomaterials Highlights the applications of advanced materials developed from lignocellulosic biomass and their contribution towards future bioeconomy Discusses the lifecycle of lignocellulosic biomass




Lignocellulose Bioconversion Through White Biotechnology


Book Description

Lignocellulose Bioconversion Through White Biotechnology Comprehensive resource summarizing the recent technological advancements in white biotechnology and biomass conversion into fuels, chemicals, food, and more Lignocellulose Bioconversion Through White Biotechnology presents cutting-edge information on lignocellulose biomass conversion, detailing how white biotechnology can develop sustainable biomass pretreatment methods, effective plant cell wall degrading enzymes to yield high quality cellulosic sugars, and the eventual conversion of these sugars into fuels, chemicals, and other materials. To provide comprehensive coverage of the subject, the work offers in-depth critical analysis into both techno-economic and life cycle analysis of lignocellulose-based products. Each of the 16 chapters, written by a well-qualified and established researchers, academics, or engineers, presents key information on a specific facet of lignocellulose-based products. Topics covered include: Lignocellulose feedstock availability, types of feedstock, and potential crops that are of high interest to the industry Lignocellulose bioconversion, including both foundational technical aspects and new modern developments Plant cell wall degrading enzymes, including cellulase improvement and production challenges/solutions when scaling up Improvements and challenges when considering fermenting microorganisms for cellulosic sugars utilization Scaling up of lignocellulose conversion, including insight into current challenges and future practices Techno-economic aspects of lignocellulose feedstock conversion, green consumerism and industrialization aspects of renewable fuels/chemicals Students, academics, researchers, bio-business analysts, and policy-makers working on sustainable fuels, chemicals, materials, and renewable fuels can use Lignocellulose Bioconversion Through White Biotechnology to gain invaluable expert insight into the subject, its current state of the art, and potential exciting future avenues to explore.




Biomass Fractionation Technologies for a Lignocellulosic Feedstock Based Biorefinery


Book Description

Biomass Fractionation Technologies for a Lignocellulosic Feedstock-based Biorefinery reviews the extensive research and tremendous scientific and technological developments that have occurred in the area of biorefinering, including industrial processes and product development using ‘green technologies’, often referred as white biotechnology. As there is a huge need for new design concepts for modern biorefineries as an alternative and amendment to industrial crude oil and gas refineries, this book presents the most important topics related to biomass fractionation, including advances, challenges, and perspectives, all with references to current literature for further study. Presented in 26 chapters by international field specialists, each chapter consists of review text that comprises the most recent advances, challenges, and perspectives for each fractionation technique. The book is an indispensable reference for all professionals, students, and workers involved in biomass biorefinery, assisting them in establishing efficient and economically viable process technologies for biomass fractionation. Provides information on the most advanced and innovative pretreatment processes and technologies for biomass Reviews numerous valuable products from lignocellulose Discusses integration of processes for complete biomass conversion with minimum waste generation Identifies the research gaps in scale-up Presents an indispensable reference for all professionals, students, and workers involved in biomass biorefinery, assisting them in establishing efficient and economically viable process technologies for biomass fractionation




Lignocellulose-Based Bioproducts


Book Description

This volume provides the technical information required for the production of biofuels and chemicals from lignocellulosic biomass. It starts with a brief overview of the importance, applications, and production processes of different lignocellulosic products. Further chapters review the perspectives of waste-based biofuels and biochemicals; the pretreatment of lignocellulosic biomass for biofuel production; cellulolytic enzyme systems for the hydrolysis of lignocelluloses; and basic and applied aspects of the production of bioethanol, biogas, biohydrogen, and biobutanol from lignocelluloses. This book is recommended for researchers and engineers and particularly students taking biofuel courses at graduate level.




Lignocellulose Conversion


Book Description

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.




Lignocellulosic Biorefining Technologies


Book Description

A text to the advances and development of novel technologies in the production of high-value products from economically viable raw materials Lignocellulosic Biorefining Technologiesis an essential guide to the most recent advances and developments of novel technologies in the production of various high-value products from economically viable raw materials. Written by a team of experts on the topic, the book covers important topics specifically on production of economical and sustainable products such as various biofuels, organic acids, enzymes, biopigments, biosurfactants, etc. The book highlights the important aspects of lignocellulosic biorefining including structure, function, and chemical composition of the plant cell wall and reviews the details about the various components present in the lignocellulosic biomass and their characterizations. The authors explore the various approaches available for processing lignocellulosic biomass into second generation sugars and focus on the possibilities of utilization of lignocellulosic feedstocks for the production of biofuels and biochemicals. Each chapter includes a range of clear, informative tables and figures, and contains relevant references of published articles. This important text: Provides cutting-edge information on the recent developments in lignocellulose biorefinery Reviews production of various economically important and sustainable products, such as biofuels, organic acids, biopigments, and biosurfactants Highlights several broad-ranging areas of recent advances in the utilization of a variety of lignocellulosic feedstocks Provides a valuable, authoritative reference for anyone interested in the topic Written for post-graduate students and researchers in disciplines such as biotechnology, bioengineering, forestry, agriculture, and chemical industry, Lignocellulosic Biorefining Technologies is an authoritative and updated guide to the knowledge about various biorefining technologies.