Download or read book Polyhydroxyalkanoates from Palm Oil Biodegradable Plastics written by Kumar Sudesh and published by Springer Science & Business Media. This book was released on 2012-10-11 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: The environmental problems caused by petroleum-based plastic and plastic waste have led to an increasing demand for biobased and biodegradable plastics, such as polyhydroxyalkanoates (PHAs). These polyesters are synthesized from carbon sources, e.g. sugar and plant oils, by various bacteria. This book highlights the potential of plant oils, especially palm oil, as a feedstock for PHA production. In addition, new PHA applications are discussed and the sustainability of PHA production from plant oils is critically examined.

Download or read book Production of PHA Copolymers from Plant Oil written by Charles Forrester Budde and published by . This book was released on 2010 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyhydroxyalkanoates (PHAs) are carbon storage polymers produced by a variety of bacteria. The model organism for studying PHA synthesis and accumulation is Ralstonia eutropha. This species can be used to convert renewable resources into PHA bioplastics, which can serve as biodegradable alternatives to traditional petrochemical plastics. A promising feedstock for PHA production is palm oil, a major agricultural product in Southeast Asia. Strains of R. eutropha were engineered to accumulate high levels of a PHA copolymer containing 3-hydroxybutyrate and 3-hydroxyhexanoate when grown on palm oil and other plant oils. This type of PHA has mechanical properties similar to those of common petrochemical plastics. The engineered strains expressed a PHA synthase gene from the bacterial species Rhodococcus aetherivorans I24. The amount of 3-hydroxyhexanoate in the PHA was controlled by modulating the level of acetoacetyl-CoA reductase (PhaB) activity in the engineered R. eutropha strains. Whole genome microarray studies were carried out to better understand R. eutropha gene expression during growth on plant oils. These results have provided insights that will allow for additional improvements to be made to the engineered strains. In order to study growth of R. eutropha strains on plant oils, fermentation methods were developed to grow the bacteria in oil medium and measure consumption of the carbon source. In one of these methods, the glycoprotein gum arabic was used to emulsify the plant oil. This emulsification reduced the lag phase in oil cultures and allowed representative samples to be taken early in experiments. High density palm oil fermentations were also carried out using unemulsified oil, which is more representative of industrial culture conditions. Techniques were developed for recovery of poly(3- hydroxybutyrate-co-3-hydroxyhexanoate) from R. eutropha biomass. Methyl isobutyl ketone was used to extract the PHA, and the polymer was precipitated from solution by addition of an alkane. A process model based on this procedure was developed for continuous recovery of PHA. The results described in this thesis include several advancements towards the goal of industrial PHA production from palm oil.

Download or read book Plastics from Bacteria written by George Guo-Qiang Chen and published by Springer Science & Business Media. This book was released on 2009-12-02 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the possibility that petroleum supplies will be exhausted in the next decades to come, more and more attention has been paid to the production of bacterial pl- tics including polyhydroxyalkanoates (PHA), polylactic acid (PLA), poly(butylene succinate) (PBS), biopolyethylene (PE), poly(trimethylene terephthalate) (PTT), and poly(p-phenylene) (PPP). These are well-studied polymers containing at least one monomer synthesized via bacterial transformation. Among them, PHA, PLA and PBS are well known for their biodegradability, whereas PE, PTT and PPP are probably less biodegradable or are less studied in terms of their biodegradability. Over the past years, their properties and appli- tions have been studied in detail and products have been developed. Physical and chemical modifications to reduce their cost or to improve their properties have been conducted. PHA is the only biopolyester family completely synthesized by biological means. They have been investigated by microbiologists, molecular biologists, b- chemists, chemical engineers, chemists, polymer experts, and medical researchers for many years. PHA applications as bioplastics, fine chemicals, implant biomate- als, medicines, and biofuels have been developed. Companies have been est- lished for or involved in PHA related R&D as well as large scale production. It has become clear that PHA and its related technologies form an industrial value chain in fermentation, materials, feeds, and energy to medical fields.

Download or read book Environmental and Agricultural Microbiology written by Bibhuti Bhusan Mishra and published by John Wiley & Sons. This book was released on 2021-09-22 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental and Agricultural Microbiology Uniquely reveals the state-of-the-art microbial research/advances in the environment and agriculture fields Environmental and Agricultural Microbiology: Applications for Sustainability is divided into two parts which embody chapters on sustenance and life cycles of microorganisms in various environmental conditions, their dispersal, interactions with other inhabited communities, metabolite production, and reclamation. Though books pertaining to soil & agricultural microbiology/environmental biotechnology are available, there is a dearth of comprehensive literature on the behavior of microorganisms in the environmental and agricultural realm. Part 1 includes bioremediation of agrochemicals by microalgae, detoxification of chromium and other heavy metals by microbial biofilm, microbial biopolymer technology including polyhydroxyalkanoates (PHAs) and polyhydroxybutyrates (PHB), their production, degradability behaviors, and applications. Biosurfactants production and their commercial importance are also systematically represented in this part. Part 2 having 9 chapters, facilitates imperative ideas on approaches for sustainable agriculture through functional soil microbes, next-generation crop improvement strategies via rhizosphere microbiome, production and implementation of liquid biofertilizers, mitigation of methane from livestock, chitinases from microbes, extremozymes, an enzyme from extremophilic microorganism and their relevance in current biotechnology, lithobiontic communities, and their environmental importance, have all been comprehensively elaborated. In the era of sustainable energy production, biofuel and other bioenergy products play a key role, and their production from microbial sources are frontiers for researchers. The final chapter unveils the importance of microbes and their consortia for management of solid waste in amalgamation with biotechnology Audience The book will be read by environmental microbiologists, biotechnologists, chemical and agricultural engineers.

Download or read book Biopolyesters written by Wolfgang Babel and published by Springer. This book was released on 2003-07-01 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Living systems synthesize seven different classes of polymers. They provide structure and form for cells and organisms, function as catalysts and energy storage and carry the genetic information. All these polymers possess technically interesting properties. Some of these biopolymers are already used commercially. This special volume of Advances in Biochemical Engineering/Biotechnology comprises 10 chapters. It gives an overview of the water insoluble biopolyesters, in particular of the microbially synthesized poly-hydroxyalkanoate (PHA) family. It reports the state of the art of metabolism, regulation and genetic background, the latest advances made in genetic optimization of bacteria, "construction" of transgenic plants and in vitro synthesis by means of purified enzymes. Furthermore, it describes relevant technologies and evaluates perspectives concerning increasing the economic viability and competitiveness of PHA and discusses applications in medicine, packaging, food and other fields.

Download or read book Handbook of Composites from Renewable Materials Biodegradable Materials written by Vijay Kumar Thakur and published by John Wiley & Sons. This book was released on 2017-02-28 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique multidisciplinary 8-volume set focuses on the emerging issues concerning synthesis, characterization, design, manufacturing and various other aspects of composite materials from renewable materials and provides a shared platform for both researcher and industry. The Handbook of Composites from Renewable Materials comprises a set of 8 individual volumes that brings an interdisciplinary perspective to accomplish a more detailed understanding of the interplay between the synthesis, structure, characterization, processing, applications and performance of these advanced materials. The Handbook comprises 169 chapters from world renowned experts covering a multitude of natural polymers/ reinforcement/ fillers and biodegradable materials. Volume 5 is solely focused on 'Biodegradable Materials'. Some of the important topics include but not limited to: Rice husk and its composites; biodegradable composites based on thermoplastic starch and talc nanoparticles; recent progress in biocomposites of biodegradable polymer; microbial polyesters: production and market; biodegradable and bioabsorbable materials for osteosynthesis applications; biodegradable polymers in tissue engineering; composites based on hydroxyapatite and biodegradable polylactide; biodegradable composites; development of membranes from biobased materials and their applications; green biodegradable composites based on natural fibers; fully biodegradable all-cellulose composites; natural fiber composites with bioderivative and/or degradable polymers; synthetic biodegradable polymers for bone tissue engineering; polysaccharides as green biodegradable platforms for building up electroactive composite materials; biodegradable polymer blends and composites from seaweeds; biocomposites scaffolds derived from renewable resources for bone tissue repair; pectin-based composites; recent advances in conductive composites based on biodegradable polymers for regenerative medicine applications; biosynthesis of PHAs and their biomedical applications; biodegradable soy protein isolate/poly(vinyl alcohol) packaging films; and biodegradability of biobased polymeric materials in natural environment.

Download or read book Polyhydroxyalkanoate PHA based Blends Composites and Nanocomposites written by Ipsita Roy and published by Royal Society of Chemistry. This book was released on 2014-11-12 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the recent accomplishments in the area of polyhydroxyalkanoates.

Download or read book Biopolymers for Biomedical and Biotechnological Applications written by Bernd H. A. Rehm and published by John Wiley & Sons. This book was released on 2020-12-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides insight into biopolymers, their physicochemical properties, and their biomedical and biotechnological applications This comprehensive book is a one-stop reference for the production, modifications, and assessment of biopolymers. It highlights the technical and methodological advancements in introducing biopolymers, their study, and promoted applications. "Biopolymers for Biomedical and Biotechnological Applications" begins with a general overview of biopolymers, properties, and biocompatibility. It then provides in-depth information in three dedicated sections: Biopolymers through Bioengineering and Biotechnology Venues; Polymeric Biomaterials with Wide Applications; and Biopolymers for Specific Applications. Chapters cover: advances in biocompatibility; advanced microbial polysaccharides; microbial cell factories for biomanufacturing of polysaccharides; exploitation of exopolysaccharides from lactic acid bacteria; and the new biopolymer for biomedical application called nanocellulose. Advances in mucin biopolymer research are presented, along with those in the synthesis of fibrous proteins and their applications. The book looks at microbial polyhydroxyalkanoates (PHAs), as well as natural and synthetic biopolymers in drug delivery and tissue engineering. It finishes with a chapter on the current state and applications of, and future trends in, biopolymers in regenerative medicine. * Offers a complete and thorough treatment of biopolymers from synthesis strategies and physiochemical properties to applications in industrial and medical biotechnology * Discusses the most attracted biopolymers with wide and specific applications * Takes a systematic approach to the field which allows readers to grasp and implement strategies for biomedical and biotechnological applications "Biopolymers for Biomedical and Biotechnological Applications" appeals to biotechnologists, bioengineers, and polymer chemists, as well as to those working in the biotechnological industry and institutes.

Download or read book Issues in Technology Theory Research and Application 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 1862 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Technology Theory, Research, and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Technology Theory, Research, and Application. The editors have built Issues in Technology Theory, Research, and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Technology Theory, Research, and Application in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Technology Theory, Research, and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Download or read book Bio Based Packaging written by Salit Mohd Sapuan and published by John Wiley & Sons. This book was released on 2021-03-29 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bio-Based Packaging Bio-Based Packaging An authoritative and up-to-date review of sustainable packaging development and applications Bio-Based Packaging explores using renewable and biodegradable materials as sustainable alternatives to non-renewable, petroleum-based packaging. This comprehensive volume surveys the properties of biopolymers, the environmental and economic impact of bio-based packaging, and new and emerging technologies that are increasing the number of potential applications of green materials in the packaging industry. Contributions address the advantages and challenges of bio-based packaging, discuss new materials to be used for food packaging, and highlight cutting-edge research on polymers such as starch, protein, polylactic acid (PLA), pectin, nanocellulose, and their nanocomposites. In-depth yet accessible chapters provide balanced coverage of a broad range of practical topics, including life cycle assessment (LCA) of bio-based packaging products, consumer perceptions and preferences, supply chains, business strategies and markets in biodegradable food packaging, manufacturing of bio-based packaging materials, and regulations for food packaging materials. Detailed discussions provide valuable insight into the opportunities for biopolymers in end-use sectors, the barriers to biopolymer-based concepts in the packaging market, recent advances made in the field of biopolymeric composite materials, the future of bio-plastics in commercial food packaging, and more. This book: Provides deep coverage of the bio-based packaging development, characterization, regulations and environmental and socio-economic impact Contains real-world case studies of bio-based packaging applications Includes an overview of recent advances and emerging aspects of nanotechnology for development of sustainable composites for packaging Discusses renewable sources for packaging material and the reuse and recycling of bio-based packaging products Bio-Based Packaging is essential reading for academics, researchers, and industry professionals working in packaging materials, renewable resources, sustainability, polymerization technology, food technology, material engineering, and related fields. For more information on the Wiley Series in Renewable Resources, visit www.wiley.com/go/rrs

Download or read book Plant Secondary Metabolites Three Volume Set written by Mohammed Wasim Siddiqui and published by CRC Press. This book was released on 2017-01-06 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant secondary metabolites are organic compounds that aid in the growth and development of plants but are not required for the plant to survive by fighting off herbivores, pests, and pathogens. These plant secondary metabolites have been used since early times in various medicines and food products for beneficial health purposes and are still r

Download or read book Plant Secondary Metabolites Volume Three written by Mohammed Wasim Siddiqui and published by CRC Press. This book was released on 2017-01-06 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third book in the three-volume Plant Secondary Metabolites examines the relationship between environmental stress and the physiology of plants, leading to stimulation of secondary metabolites. Various stressors are discussed, including plant and soil interfaces, changing climate elements, essential plant nutrients, pest insects, plant pathogens and microrganisms, and more. The chapters, written by experienced experts, also address the diverse utilization of plant-originated secondary metabolites and more.

Download or read book Biodegradable Plastics and Polymers written by Y. Doi and published by Elsevier. This book was released on 2013-10-22 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past 25 years, plastic products have gained universal use not only in food, clothing and shelter, but also in the transportation, construction, medical and leisure industries. Whereas previously synthetic plastics were developed as durable substitute products, increasing concern for the global environment and solid waste management has resulted in an urgent demand for biodegradable plastics. The main topics of the Third International Scientific Workshop were as follows: 1. Biodegradation of polymers and plastics 2. Environmental degradation of plastics 3. Synthesis and properties of new biodegradable plastic materials 4. Biodegradation and morphologies of polymer blends 5. Development of biodegradation test methods 6. Governmental policy, regulation and standards.

Download or read book Clean Energy and Resource Recovery written by Vinay Kumar Tyagi and published by Elsevier. This book was released on 2021-11-10 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clean Energy and Resource Recovery: Wastewater Treatment Plants as Bio-refineries, Volume 2, summarizes the fundamentals of various treatment modes applied to the recovery of energy and value-added products from wastewater treatment plants. The book addresses the production of biofuel, heat, and electricity, chemicals, feed, and other products from municipal wastewater, industrial wastewater, and sludge. It intends to provide the readers an account of up-to-date information on the recovery of biofuels and other value-added products using conventional and advanced technological developments. The book starts with identifying the key problems of the sectors and then provides solutions to them with step-by-step guidance on the implementation of processes and procedures. Titles compiled in this book further explore related issues like the safe disposal of leftovers, from a local to global scale. Finally, the book sheds light on how wastewater treatment facilities reduce stress on energy systems, decrease air and water pollution, build resiliency, and drive local economic activity.As a compliment to Volume 1: Biomass Waste Based Biorefineries, Clean Energy and Resource Recovery, Volume 2: Wastewater Treatment Plants as Bio-refineries is a comprehensive reference on all aspects of energy and resource recovery from wastewater. The book is going to be a handy reference tool for energy researchers, environmental scientists, and civil, chemical, and municipal engineers interested in waste-to-energy. Offers a comprehensive overview of the fundamental treatments and methods used in the recovery of energy and value-added products from wastewater Identifies solutions to key problems related to wastewater to energy/resource recovery through conventional and advanced technologies and explore the alternatives Provides step-by-step guidance on procedures and calculations from practical field data Includes successful case studies from both developing and developed countries

Download or read book Lignocellulose for Future Bioeconomy written by Hidayah Ariffin and published by Elsevier. This book was released on 2019-04-20 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book The Handbook of Polyhydroxyalkanoates written by Martin Koller and published by CRC Press. This book was released on 2020-11-05 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third volume of the Handbook of Polyhydroxyalkanoates (PHA) focusses on the production of functionalized PHA bio-polyesters, the post-synthetic modification of PHA, processing and additive manufacturing of PHA, development and properties of PHA-based (bio)composites and blends, the market potential of PHA and follow-up materials, different bulk- and niche applications of PHA, and the fate and use of spent PHA items. Divided into fourteen chapters, it describes functionalized PHA and PHA modification, processing and their application including degradation of spent PHA-based products and fate of these bio-polyesters during compositing and other disposal strategies. Aimed at graduate students and professionals in Polymer science, chemical engineering and bioprocessing, it: Covers current state of the art in the development of chemically modifiable PHA including mult-istep modifications of isolated biopolyesters, short syntheses of monomer feedstocks and so forth. Describes design of functionalized PHA-based polymeric materials by chemical modification . Illustrates preparation of bioactive oligomers derived from microbial PHA and synthetic analogues of natural PHA oligomers. Discusses processing and thermomechanical properties of PHA. Reviews advantages of PHA against other bio-based and conventional polymers with current applications and potential uses of PHA-based polymers highlighting innovative products.

Download or read book The Handbook of Polyhydroxyalkanoates written by Martin Koller and published by CRC Press. This book was released on 2020-11-05 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first volume of the "Handbook of Polyhydroxyalkanoates (PHA): Microbial Biosynthesis and Feedstocks" focusses on feedstock aspects, enzymology, metabolism and genetic engineering of PHA biosynthesis. It addresses better understanding the mechanisms of PHA biosynthesis in scientific terms and profiting from this understanding in order to enhance PHA biosynthesis in bio-technological terms and in terms of PHA microstructure. It further discusses making PHA competitive for outperforming established petrol-based plastics on industrial scale and obstacles for market penetration of PHA. Aimed at professionals and graduate students in Polymer (plastic) industry, wastewater treatment plants, food industry, biodiesel industry, this book Covers the intracellular on-goings in PHA-accumulating bacteria Assesses diverse feedstocks to be used as carbon source for PHA production including current knowledge on PHA biosynthesis starting from inexpensive waste feedstocks Summarizes recent relevant results dealing with PHA production from various organic by-products Presents the key elements to understand and fine-tune the microstructure and sequence-controlled molecular architecture of PHA co-polyesters Discusses the use of CO-rich syngas, sourced from various organic waste materials, for PHA biosynthesis