The microbial engineering technologies have been identified as an essential and important subject area of engineering and applied biological sciences. A microbial engineer works on the biological, chemical and engineering aspects of biotechnology, manipulating microbes and developing new uses for microbes. In agriculture, bioprocess engineering, in biotechnology, genetic engineering, microbial vaccines, and the development of bionanotechnology, microbial engineering could be recognized as high potential technologies in the current scenario for economic development. Scientists and engineers are motivated for sustainable green technology as a part of an upcoming industrial revolution turning more and more to processes involving microorganisms. provides a better understanding of industrially important genetically manipulated and engineered prokaryotic and eukaryotic cell systems. The content of this book are based on most recent developments in microbial engineering. The contributions by specialists on the respective topics provide a profound scientific basis for further research. It is expected that this book will be a valuable resource for researchers as well as students dealing with microbiology and biotechnology.