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Numerical Characterization of Mechanical Stress and Flow Patterns in Stirred Tank Bioreactors
Das Ziel der Arbeit bestand darin, die lokalen und globalen mechanischen Beanspruchungsparameter in einem Rührkesselbioreaktor mit Hilfe der numerischen Strömungssimulation (CFD) nachzubilden und die Ergebnisse mit experimentellen Daten der Pellet-kultivierung bzgl. Fluiddynamik und Rheolgie des rekombinanten Stammes A. niger SKAn1015 zu validieren. Ausgehend von der einphasigen Strömungssimulation eines 2L-Bioreaktors werden zunächst Simultionsdaten über Strömungsgeschwindigkeit und mechanische Beanspruchung diskutiert. Aßerdem erfolgt eine Validierung der einphasigen Simulationsdaten mit der Particle Image Velocimetry. In weiteren Untersuchungen wird die Strömungssimulation auch au...
A Multi-omics Perspective on Osmoadaptation and Osmoprotection in Bacillus subtilis
In its natural environment, the soil bacterium Bacillus subtilis permanently encounters nutrient limitations and increases in osmotic stress. The present study investigated the systemswide response of B. subtilis to different simultaneously imposed stresses by combining chemostat experiments under conditions of carbon and nitrogen limitation, ionic and nonionic osmotic stress and osmoprotection with multi-omics analyses of the transcriptome, proteome, metabolome and fluxome. Surprisingly, the flux through central carbon and energy metabolism is very robust under all conditions studied. The key to achieve this robustness is the increased production of several enzymes of central carbon metabol...
Effect of fluid dynamics on pellet morphology and product formation of "Aspergillus niger"
The product formation of the biopellets of filamentous fungi, such as Aspergillus niger, is closely linked with the pellet morphology. Therefore, investigations were carried out to determine the influence of fluid dynamic conditions on the growth of fungal pellets. During the present study, important information about the evolution of morphological changes during the cultivation process in stirred tank reactors was gathered from cultivations at different volumetric power inputs by agitation and aeration. The quantification of the pellet morphology was accomplished by the digital image analysis and the laser diffraction technique tracing parameters like the pellet diameter and the pellet conc...
Synthetic Biology – Metabolic Engineering
This book review series presents current trends in modern biotechnology. The aim is to cover all aspects of this interdisciplinary technology where knowledge, methods and expertise are required from chemistry, biochemistry, microbiology, genetics, chemical engineering and computer science. Volumes are organized topically and provide a comprehensive discussion of developments in the respective field over the past 3-5 years. The series also discusses new discoveries and applications. Special volumes are dedicated to selected topics which focus on new biotechnological products and new processes for their synthesis and purification. In general, special volumes are edited by well-known guest editors. The series editor and publisher will however always be pleased to receive suggestions and supplementary information. Manuscripts are accepted in English.
Biosystems Engineering I
-Integration of Systems Biology with Bioprocess Engineering: L-Threonine Production by Systems Metabolic Engineering of Escherichia Coli, By Sang Yup Lee and Jin Hwan Park; -Analysis and Engineering of Metabolic Pathway Fluxes in Corynebacterium glutamicum, By Christoph Wittmann; -Systems Biology of Industrial Microorganisms, Marta Papini, Margarita Salazar, and Jens Nielsen; -De Novo Metabolic Engineering and the Promise of Synthetic DNA, By Daniel Klein-Marcuschamer, Vikramaditya G. Yadav, Adel Ghaderi, and Gregory N. Stephanopoulos; -Systems Biology of Recombinant Protein Production in Bacillus megaterium, Rebekka Biedendieck, Boyke Bunk, Tobias Fürich, Ezequiel Franco-Lara, Martina Jahn, and Dieter Jahn; -Extending Synthetic Routes for Oligosaccharides by Enzyme, Substrate and Reaction Engineering; By Jürgen Seibel, Hans-Joachim Jördening, and Klaus Buchholz; -Regeneration of Nicotinamide Coenzymes: Principles and Applications for the Synthesis of Chiral Compounds; By Andrea Weckbecker, Harald Gröger, and Werner Hummel;
Systems Metabolic Engineering
Systems Metabolic Engineering is changing the way microbial cell factories are designed and optimized for industrial production. Integrating systems biology and biotechnology with new concepts from synthetic biology enables the global analysis and engineering of microorganisms and bioprocesses at super efficiency and versatility otherwise not accessible. Without doubt, systems metabolic engineering is a major driver towards bio-based production of chemicals, materials and fuels from renewables and thus one of the core technologies of global green growth. In this book, Christoph Wittmann and Sang-Yup Lee have assembled the world leaders on systems metabolic engineering and cover the full story – from genomes and networks via discovery and design to industrial implementation practises. This book is a comprehensive resource for students and researchers from academia and industry interested in systems metabolic engineering. It provides us with the fundaments to targeted engineering of microbial cells for sustainable bio-production and stimulates those who are interested to enter this exiting research field.
Rand McNally Bankers Directory
V.1. U.S. Master, Alabama-Minnesota. -- v.2. U.S. Master, Missouri-Wyoming. -- v.3. U.S. Operations. -- v.4. International.
Forest Industry Wastewaters VI
The sustainable management of the Forest Industries challenges many different disciplines. Not only do the different forest industry sectors vary in the approaches needed, but the unique nature of mills and their surrounding environments create a huge variety of conditions and hence of strategies to be employed. Yet again the IAWQ's Forest Industry Wastewaters Symposium provided a forum for the world's leading experts to discuss the scientific and practical issues and report progress. The proceedings are introduced by 4 invited papers that examine the social, economic and ecological relationships of the forest industries and together with the concluding summary of the sessions and related pa...
