Microbial-based Polyhydroxyalkanoates

Author: Amirul Al-Ashraf Abdullah

Publisher: Smithers Rapra

ISBN: 1909030643

Category: Science

Page: 190

View: 7668

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Polyhydroxyalkanoate (PHA) is a group of natural biopolymers synthesised by a wide variety of microbial genera. It is a biodegradable and biocompatible thermoplastic consisting of a repeated chain of various hydroxyalkanoate monomers.PHA is envisioned to be one of the most prospective and futuristic materials which is beneficial to mankind and to the world. In current world trends which concerns at the sustainable development from renewable and eco-friendly resources, PHA has garnered a growing attention as an alternative to petroleum based plastics.The book comes with two main objectives. In this book, major pipelines in processing this beneficial biopolymer were first reviewed from upstream to the downstream. The upstream processing includes the isolation of PHA producers, biosynthesis of PHA, genetic modification of PHA producers and optimisation of PHA production; meanwhile the downstream processing covers the PHA recovery and purification, degradation, quantification, characterisation, as well as the application of PHA. Readers will be exposed to the introductory information, along with some necessary concepts behind each subject.The second objective of this book is to provide readers with the recent advances on each PHA processing field. Being updated with the recent findings, this will provide an insight to readers on how the research trends for each subject are evolving from time to time. These updates will become useful case studies and quick references to readers from various areas, either from academia or industry.

Recent Advances in Biotechnology Volume, 2: Microbial Biopolyester Production, Performance and Processing Bioengineering, Characterization, and Sustainability

Author: Martin Koller

Publisher: Bentham Science Publishers

ISBN: 1681083736

Category: Science

Page: 520

View: 9109

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Global plastic production is estimated to be over 300Mt annually. Most conventional plastics are predominantly produced from fossil fuels and are highly resistant to biodegradation, and only a small share of about 20% of spent plastics is believed to be recycled, which is a cause for environmental concern. Biodegradable plastics would solve this concern as they are a sustainable alternative, yet these do not even cover 5% of the global plastic market. Microbial polyhydroxyalkanoates (PHAs) are a versatile group of polyesters produced by nature as prokaryotic storage materials. PHAs can be produced through sustainable bioprocess engineering and have displayed remarkable flexibility in their physical and chemical properties. PHAs are the subject of several scientific papers and numerous PHA patents have also been filed, generating significant interest in the plastic production industry. To develop overall sustainable and efficient production processes, all bioprocess steps need to be thoroughly understood and accounted for. These processes start with the selection of suitable inexpensive raw materials (microbes and enzymes), optimizing the process engineering and process regime, and conclude with the enhancement of product recovery in terms of time, energy, and material input. Microbial Biopolyester Production, Performance and Processing: Bioengineering, Characterization, and Sustainability is a compilation of eight chapters covering bacterial polyesters, green plastics and PHAs from various angles. The contents of this volume focus on sustainable practices focus on the sustainability of processes that involve the synthesis and recycling of these meterials. The volume is a useful resource for bioprocess engineers, microbiologists, biotechnologists and chemical engineers interested in the basics of biodegradable plastic production.

Recent Advances in Biotechnology Volume, 1: Microbial Biopolyester Production, Performance and Processing Microbiology, Feedstocks, and Metabolism

Author: Martin Koller

Publisher: Bentham Science Publishers

ISBN: 1681083256

Category: Science

Page: 500

View: 7841

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Global plastic production is estimated to be over 300Mt annually. Most conventional plastics are predominantly produced from fossil fuels and are highly resistant to biodegradation, and only a small share of about 20% of spent plastics is believed to be recycled, which is a cause for environmental concern. Biodegradable plastics would solve this concern as they are a sustainable alternative, yet these do not even cover 5% of the global plastic market. Microbial polyhydroxyalkanoates (PHAs) are a versatile group of polyesters produced by nature as prokaryotic storage materials. PHAs can be produced through sustainable bioprocess engineering and have displayed remarkable flexibility in their physical and chemical properties. PHAs are the subject of several scientific papers and numerous PHA patents have also been filed, generating significant interest in the plastic production industry. To develop overall sustainable and efficient production processes, all bioprocess steps need to be thoroughly understood and accounted for. These processes start with the selection of suitable inexpensive raw materials (microbes and enzymes), optimizing the process engineering and process regime, and conclude with the enhancement of product recovery in terms of time, energy, and material input. Microbial Biopolyester Production, Performance and Processing: Microbiology, Feedstocks, and Metabolism encompasses eight chapters that cover aspects of the microbiology and biotechnology of producing biodegradable plastics. The contents focus on the selection of powerful archaeal and eubacterial production strains, genetic engineering as a tool for optimized PHA production and inexpensive carbon sources for microbial cultures. The volume is a useful resource for bioprocess engineers, microbiologists, biotechnologists and chemical engineers interested in the basics of biodegradable plastic production. Recent Advances in Biotechnology is a book series comprising of peer-reviewed reference works and monographs that compile the latest developments in the field of biotechnology. Each volume has a thematic focus and features topical reviews written by experts. The series will highlight multidisciplinary perspectives to interested readers (biotechnologists, microbiologists, bioprocess engineers, agronomists, medical professionals, sustainability researchers etc.)

The Metabolic Pathway Engineering Handbook

Fundamentals

Author: Christina Smolke

Publisher: CRC Press

ISBN: 9781439802977

Category: Medical

Page: 678

View: 8232

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This first volume of the Metabolic Pathway Engineering Handbook provides an overview of metabolic pathway engineering with a look towards the future. It discusses cellular metabolism, including transport processes inside the cell and energy generating reactions, as well as rare metabolic conversions. This volume also explores balances and reaction models, the regulation of metabolic pathways, and genome scale and multiscale modeling tools. It also covers developing appropriate hosts for metabolic engineering including the use of Escherichia coli, yeast, Bacillus Subtilis, Streptomyces, filamentous fungi, and mammalian cells using cell culture. Christine Smolke, who recently developed a novel way to churn out large quantities of drugs from genetically modified brewer’s yeast, is regarded as one of the most brilliant new minds in biomedical engineering. In this handbook, she brings together pioneering scientists from dozens of disciplines to provide a complete record of accomplishment in metabolic pathway engineering. With a wealth of cutting edge research and analysis, this work also serves as an invaluable resource for those seeking to add their own contributions. Organized by topic, this 3000 page reference is available as two volumes that can be purchased individually or as a set. For information on the complete handbook visit Cat No. 3923

Biotechnology of Biopolymers

From Synthesis to Patents

Author: Alexander Steinbüchel,Yoshiharu Doi

Publisher: Wiley-Blackwell

ISBN: N.A

Category: Science

Page: 1200

View: 1424

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The best of the "Biopolymers" series. Since only a small number of individuals can afford to buy the entire Biopolymers series, or would simply prefer a broader overview, this handbook contains the very best of biotechnology, with articles taken directly from Alexander Steinbüchel´s successful series. As such, these two volumes cover the entire range of biopolymers and not just one chemical class, with the focus on the biotechnological systems and processes under development for a cost effective production, isolation and modification of biopolymers. Furthermore it covers the fundamentals of their chemical and physical properties, their occurrence, metabolism, biosynthesis and biodegradation as well as their industrial applications as renewable resources, novel materials and technical applications. With its contributions similarly structured for easy data comparison and an extensive table of patents, this is an ideal reference for medium sized laboratories and libraries.

Immobilisierte Biokatalysatoren

Eine Einführung

Author: Winfried Hartmeier

Publisher: Springer-Verlag

ISBN: 3662078627

Category: Science

Page: 206

View: 2187

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Obwohl oder gerade weil eine kaum mehr überschaubare Zahl von Publi kationen auf dem Gebiet der Immobilisierung von Biokatalysatoren existiert, ist es für den Anfänger, der einen Einstieg sucht, auf diesem Gebiet oft schwer, geeignete Informationen aus der Flut von Originalarbeiten herauszufinden. Einige gute, fast immer aber eng lischsprachige Monographien sind entweder außerordentlich umfang reich und teuer, oder sie behandeln nur ausgewählte Teilaspekte der Immobilisierung. Dem will die vorliegende Einführung abhelfen. Sie soll dem Leser zu einem raschen Überblick verhelfen und ihm den inzwischen abgesicherten Kenntnisstand nach Art eines kurzen Lehr buches vermitteln. Das Buch ist aus Erfahrungen in Vorlesungen, Praktika und Kursen entstanden. Es soll sich maßgeblich an Lernende wenden, auch wenn "Immobilisierte Biokatalysatoren" bisher noch nicht zum Stan dardrepertoire der Lehre an deutschen Universitäten und Fachhoch schulen gehören. Es ist jedoch die Oberzeugung des Autors, daß sich dies in den kommenden Jahren mit der wachsenden Bedeutung dieses Gebietes und mit der allgemeinen Etablierung der Biotechnologie an den Hochschulen ändern wird. Ober den Kreis der Studenten und Dozen ten hinaus wendet sich die Einführung aber auch an die vielen Natur wissenschaftler und Techniker der industriellen Praxis, die sich mit immobilisierten Biokatalysatoren befassen und sich dazu ein ent sprechendes Grundwissen aneignen wollen.

Biokohle

Herstellung, Eigenschaften und Verwendung von Biomassekarbonisaten

Author: Peter Quicker,Kathrin Weber

Publisher: Springer-Verlag

ISBN: 3658036893

Category: Science

Page: 409

View: 1719

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Biomassekarbonisate (Biokohlen) besitzen signifikant unterschiedliche Eigenschaften, die von den Herstellungsverfahren, Prozessbedingungen und Ausgangssubstraten abhängen. Im Buch sind die technisch verfügbaren Verfahren zur Erzeugung von Biokohle beschrieben und die thermochemischen Prozesse erörtert. Anhand von zahlreichen farbigen Abbildungen sind die Prozesse, Eigenschaften und Einsatzmöglichkeiten veranschaulicht. Der Fokus des Buches liegt auf den großtechnischen Anwendungen als Energieträger, als Reduktions- oder Aufkohlungsmittel in metallurgischen Verfahren, in Recyclingprozessen oder in Kraft- und Zementwerken. Aber auch die Anwendung von Biomassekarbonisaten in der Landwirtschaft als Bodenhilfsstoff oder in der Tierhaltung ist aufgezeigt.

Allgemeine Mikrobiologie

Author: Georg Fuchs

Publisher: Georg Thieme Verlag

ISBN: 3132418870

Category: Science

Page: 752

View: 466

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Das Standardwerk der Mikrobiologie – aktuell und umfassend Hier erfährst du alles, was du im Biologiestudium über Mikrobiologie wissen musst: - die verschiedenen Mikroorganismen im Überblick - allgemeiner Zellstoffwechsel mit Biosynthesen und Abbau organischer Verbindungen - unterschiedliche Stoffwechselleistungen der verschiedenen Mikroorganismen - Genetik und Molekularbiologie - Ökologie, Symbiose, Antagonismus - Systematik der Mikroorganismen, mit Vernetzung zum Stoffwechselkapitel - Biogeochemie und marine Mikrobiologie - Einführung in die medizinische Mikrobiologie und Infektionskrankheiten - Biotechnologie, inkl. Informationen zu Fermentationstechnik und Lebensmittelbiologie - Anhang mit den wichtigsten thermodynamischen Grundlagen des Stoffwechsels - Vokabularium mit den wichtigsten ins Deutsche übersetzten Fachausdrücken Großes Format, übersichtliches Layout, bewährtes didaktisches Konzept: - viele Bilder und Grafiken, komplett farbig - klar formulierter Haupttext - spannend und verständlich geschrieben - verschiedenfarbige Boxen mit vertiefendem Wissen und Methoden Jederzeit zugreifen: Der Inhalt des Buches steht Ihnen ohne weitere Kosten digital in der Wissensplattform eRef zur Verfügung (Zugangscode im Buch). Mit der kostenlosen eRef App haben Sie zahlreiche Inhalte auch offline immer griffbereit.

Struma

Author: Johannes Köbberling,Caroline R. Pickardt

Publisher: Springer-Verlag

ISBN: 3642883133

Category: Medical

Page: 211

View: 2433

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Nature

Author: Sir Norman Lockyer

Publisher: N.A

ISBN: N.A

Category: Electronic journals

Page: N.A

View: 2562

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Die Welt ohne uns

Reise über eine unbevölkerte Erde

Author: Alan Weisman

Publisher: Piper Verlag

ISBN: 3492959938

Category: Social Science

Page: 384

View: 5490

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Was wäre, wenn wir Menschen von einem Tag auf den anderen verschwinden würden? Zum Beispiel morgen. Ein ungeheures Gedankenexperiment! Alan Weisman entwirft das Szenario einer unbevölkerten Erde – gestützt auf das Wissen von Biologen, Geologen, Physikern, Architekten und Ingenieuren und mit atemberaubender Phantasie. Schritt für Schritt vollzieht Weisman nach, wie die Natur unseren Planeten zurückerobert, und führt dem Leser dabei zweierlei vor Augen: was der Mensch in Jahrtausenden zu schaffen vermochte und über welch unerhörte Macht die Natur verfügt.