Download or read book Proceedings of the Twenty Fifth Symposium on Biotechnology for Fuels and Chemicals Held May 4 7 2003 in Breckenridge CO written by Mark Finkelstein and published by Springer Science & Business Media. This book was released on 2004-05-15 with total page 1185 pages. Available in PDF, EPUB and Kindle. Book excerpt: State-of-the-art research by leading experts Advanced feedstock production and processing Enzyme and microbial biocatalysis Bioprocess research and development Commercialization of biobased products.
Download or read book Cellulase Production by Trichoderma Reesei Rut C30 written by Chi-Ming Lo and published by . This book was released on 2008 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the price of oil continues to increase and the concern over global warming heightens, finding alternative renewable sources of energy becomes more and more imperative. Considering the abundance of lignocellulosic biomass, the potential significance of its conversion to fuel such as ethanol has long been recognized. Ethanol production from lignocellulosic biomass requires the breakdown of the solid material to simple sugars that can be consumed by microorganisms. The breakdown of lignocelluloses includes the important step of hydrolyzing cellulose, which are [Beta]-1, 4 linked polymers of glucose, by a group of enzymes collectively termed cellulase. The cost of cellulase production profoundly influences the economics of the entire ethanol production process. Trichoderma reesei Rut C-30 is the most commonly used fungal strain for industrial cellulase production. With an overall goal of decreasing the cellulase production cost, this thesis work was focused on two topics: (1) investigation of the performance of different cellulase-inducing substrates in T. reesei Rut C-30 fermentation and (2) development of a more advanced model to describe the culture behaviors of T. reesei Rut C-30 grown on lactose-based media. The cellulase-inducing substrates investigated in this work included the acid-treated hydrolysate, lactose, and the sophorolipids produced by the yeast Candida bombicola. In addition to the above focused topics, the effects of culture conditions on cellulase production were also investigated. The acid-treated hardwood hydrolysates used in the study were prepared by a two-stage process, with different durations of boiling and acid concentrations. The results indicated that the inducing ability of the hydrolysates decreased with increasing boiling time (less oligomers). The observation was attributed to the lower amounts of inducing oligomers remaining after the longer boiling in acid. When compared with cultures growing on mixed carbon substrates of cellulose and glucose, the culture growing on hydrolysates showed a longer lag phase of about 24 hours (before the active cell growth began), but produced adequately comparable final cellulase activity. The study with lactose as an inducing substrate was conducted in both batch and continuous culture systems with lactose and other relevant substrates (glycerol, glucose and galactose) as the carbon source. Instead of direct ingestion, lactose is believed to be hydrolyzed by extracellular enzymes to glucose and galactose, which are then taken up by the cells. The study results indicated that glucose strongly represses the galactose metabolism: Cells started to consume galactose only after the glucose had been depleted. A mathematical model incorporating all important metabolic activities was developed to describe the culture behaviors. All of the experimental results obtained were used in model fitting to generate a set of best-fit model parameters. The study provided significant conceptual and quantitative insights to the lactose metabolism and cellulase production by T. reesei Rut C-30. This study was also the first to hypothesize and demonstrate the use of sophorolipids as the inducing substrate for cellulase production. A unique process for cellulase production using a mixed culture of T. reesei Rut C30 and Candida Bombicola growing on glycerol-based media was investigated. Hypothetically, the sophorolipids produced by C. bombicola were hydrolyzed to form sophorose, which then served as the inducer for cellulase production by T. reesei. Further study to optimize the sophorolipid-induced cellulase production process is recommended.
Download or read book Lignocellulose Biodegradation written by American Chemical Society. Meeting and published by . This book was released on 2004 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lignocellulose Biodegradation will be useful for chemists, biochemists, microbiologists, molecular biologists, and biochemical engineers. This book describes advances in lignocellulose biodegradation and application in biotechnology. It contains a combination of original research and review chapters. An overview chapter on lignocellulose biodegradation and applications in biotechnology focuses on recent research progress in the field. Lignocellulose Biodegradation includes sections on pretreatment, biodegradation, enzyme characterization and application.
Download or read book Fungi and Lignocellulosic Biomass written by Christian P. Kubicek and published by John Wiley & Sons. This book was released on 2012-09-25 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harnessing fungi’s enzymatic ability to break down lignocellulolytic biomass to produce ethanol more efficiently and cost-effectively has become a significant research and industrial interest. Fungi and Lignocellulosic Biomass provides readers with a broad range of information on the uses and untapped potential of fungi in the production of bio-based fuels. With information on the molecular biological and genomic aspects of fungal degradation of plant cell walls to the industrial production and application of key fungal enzymes, chapters in the book cover topics such as enzymology of cellulose, hemicelluloses, and lignin degradation. Edited by a leading researcher in the field, Fungi and Lignocellulosic Biomass will be a valuable tool in advancing the development and production of biofuels and a comprehensive resource for fungal biologists, enzymologists, protein chemists, biofuels chemical engineers, and other research and industry professionals in the field of biomass research.
Download or read book Exploring The Controlled Pellet Formation of Trichoderma Reesei RUT C30 for Improved Fermentation written by Nicholas V. Callow and published by . This book was released on 2015 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work explored the unique influence of surfactants, shear, and fermentation conditions on the morphological and enzymatic production of Trichoderma reesei RUT-C30. Controlling fungal pellet formation and understanding of their behavior is critical to improving cellulase production. The inclusion of either Triton or rhamnolipid surfactant was found to induce pellet formation in T. reesei. While under the influence of a surfactant, the cellulase production increased. The number of pellets formed during growth was a function of the number of colony forming filamentous cells in the inoculum; pellets were only formed during periods of growth. Yet, the overall fungal amount was determined by the nutrient availability and not pellet concentration. The overall average pellet size was influenced by the fluid mixing conditions, with higher shear creating smaller pellets. This effect was replicated in both shake flasks and stir-tank fermentors, indicating similarity in fundamental mechanisms. Under phosphorus limiting conditions, fungal growth was successfully halted and continuous stationary phase cellulase production was achieved. Extended pellet based fermentations were possible by using nutrient limitation combined with surfactants. Nitrogen limitation was found to be ineffective for stationary phase cellulase production. An economic analysis, combined with Monte Carlo simulation of key uncertainties, indicated that the cellulase cost could be reduced when using both lower shear and nutrient control.
Download or read book Gene Expression Systems in Fungi Advancements and Applications written by Monika Schmoll and published by Springer. This book was released on 2016-04-04 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biotechnology has emerged as one of the key environmentally safe technologies for the future which enables use of biomass to develop novel smart materials and to replace oil derived products. Fungi are the most efficient producers of the enzymes needed for this purpose and in addition they produce a plethora of secondary metabolites, among which novel antibiotics can be found. Industrial application and exploitation of the metabolic capacities of fungi requires highly productive and robust gene expression systems, which can be achieved by selection of appropriate species and strain improvement. In this book we aim to summarize homologous and heterologous gene expression systems of fungi for production of enzymes and secondary metabolites. A broad overview on requirements, challenges and successful applications shall serve as a basis for further development of fungi as biotechnological workhorses in research and industry.
Download or read book Biotechnology and Biology of Trichoderma written by Vijai G. Gupta and published by Newnes. This book was released on 2014-02-17 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biotechnology and Biology of Trichoderma serves as a comprehensive reference on the chemistry and biochemistry of one of the most important microbial agents, Trichoderma, and its use in an increased number of industrial bioprocesses for the synthesis of many biochemicals such as pharmaceuticals and biofuels. This book provides individuals working in the field of Trichoderma, especially biochemical engineers, biochemists and biotechnologists, important information on how these valuable fungi can contribute to the production of a wide range of products of commercial and ecological interest. - Provides a detailed and comprehensive coverage of the chemistry, biochemistry and biotechnology of Trichoderma, fungi present in soil and plants - Includes most important current and potential applications of Trichoderma in bioengineering, bioprocess technology including bioenergy & biofuels, biopharmaceuticals, secondary metabolites and protein engineering - Includes the most recent research advancements made on Trichoderma applications in plant biotechnology and ecology and environment
Download or read book Biochemistry and Genetics of Cellulose Degradation written by Jean-Paul Aubert and published by . This book was released on 1988 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reviews basic research into the biochemistry and genetics of lignocellulose biodegradation; the breakdown of cellulose containing products utilizing microorganisms. This topic has received much attention of late because of possibilities for the biotechnology industry and because it is hoped that advances in the field will make a contribution to the energy crisis by utilizing biomass. However, there remains a good deal of basic research still to be done before full exploitation can be achieved.
Download or read book Trichoderma Reesei Cellulases written by C. P. Kubicek and published by . This book was released on 1990 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of a symposium on Trichoderma cellulases held at the Technical University of Vienna September 14-16, 1989, attended by 100 scientists representing both academic institutions and industrial research laboratories.
Download or read book Renewable Biofuels written by Vandana Rana and published by Springer. This book was released on 2016-12-08 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a complete introduction for novices to understand key concepts of biocatalysis and how to produce in-house enzymes that can be used for low-cost biofuels production. The authors discuss the challenges involved in the commercialization of the biofuel industry, given the expense of commercial enzymes used for lignocellulose conversion. They describe the limitations in the process, such as complexity of lignocellulose structure, different microbial communities’ actions and interactions for degrading the recalcitrant structure of lignocellulosic materials, hydrolysis mechanism and potential for bio refinery. Readers will gain understanding of the key concepts of microbial catalysis of lignocellulosic biomass, process complexities and selection of microbes for catalysis or genetic engineering to improve the production of bioethanol or biofuel
Download or read book Enzymatic Conversion of Biomass for Fuels Production written by Michael E. Himmel and published by . This book was released on 1994 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the use of enzymatic and microbial biocatalysis for transformation of biomass to liquid or gaseous fuels. Explores metabolic pathway engineering. Discusses characterization of new hydrolytic enzymes. Presents new microorganisms and fermentation techniques. Focuses on lignocellulosic biomass conversion technology.
Download or read book Cellulase Production by Trichoderma Reesei on Wheat Straw written by and published by . This book was released on 1981* with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Calcium A Matter of Life or Death written by and published by Elsevier. This book was released on 2007-09-17 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calcium is a versatile carrier of signals regulating many aspects of cellular activity such as fertilization to create a new life and programmed cell death to end it. Calcium homeostasis is strictly controlled by channels, pumps and exchangers functioning as gates for calcium entry and release. Given that calcium is such a versatile messenger the field of calcium signaling is continuously and rapidly expanding. This book reviews the most recent developments in calcium signaling by leading experts in the field. It is a state-of-the-art summary of our present knowledge in this quickly growing field and provides insight into the impressive progress made in many areas of calcium signaling, while reminding us of how much remains to be learned.
Download or read book Reprogramming Microbial Metabolic Pathways written by Xiaoyuan Wang and published by Springer Science & Business Media. This book was released on 2012-10-19 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metabolic engineering has been developed over the past 20 years to become an important tool for the rational engineering of industrial microorganisms. This book has a particular interest in the methods and applications of metabolic engineering to improve the production and yield of a variety of different metabolites. The overall goal is to achieve a better understanding of the metabolism in different microorganisms, and provide a rational basis to reprogram microorganisms for improved biochemical production.
Download or read book Fungal Metabolites written by Jean-Michel Mérillon and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Industrial Enzyme Applications written by Andreas Vogel and published by John Wiley & Sons. This book was released on 2019-10-28 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference is a "must-read": It explains how an effective and economically viable enzymatic process in industry is developed and presents numerous successful examples which underline the efficiency of biocatalysis.
Download or read book Biofuel Production Technologies Critical Analysis for Sustainability written by Neha Srivastava and published by Springer Nature. This book was released on 2020-03-23 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Production and utilization of sustainable energy toward maintaining a clean environment is a major challenge. At the same time, the continued depletion of fossil fuels and the global dependency on non-renewable fuels is a chief concern. Moreover, the long-term economic and environmental issues associated with the high utilization of fossil fuel, such as global warming, are also important, particularly in the context of the predicted increase in the global population to around 5 billion by 2050. In recent years, researchers have been investigating alternative, renewable fuels to replace fossil fuels. Of the various options, biofuels are especially attractive due to their low production costs and the fact that they are pollution free. Also known as transportation fuels, their energy is derived from biological resources or through the biological processes. Biofuels such as biohydrogen, biomethane, biogas, ethanol and butanol offer a number of advantages and can be economically produced from cellulosic biomass. As such, they can play a vital role in sustainably meeting future energy demands. Biofuels have the potential to become a global primary energy source, offering significant reductions in greenhouse gas emissions as well as opportunities to increase economic and social development in rural communities and reduce the problems associated with waste disposal. However, low yields and lack of process technology are some of the aspects that need to be addressed. This book offers an overview of existing biofuels and the technologies to solve the problems associated with their practical implementation. Evaluating the biofuel options and discussing the opportunities and risks in relation to resources, technologies, practices, markets and policy, it provides insights into the development of economically viable bioenergy industries.
