MICROBIAL PROCESSES AND PRODUCTS

The development of biotechnology over the last 20 years, and particularly the use of recombinant DNA techniques, has rapidly expanded the opportu- ties for human benefits from living resources. Efforts to reduce pollution, p- vent environmental damage, combat microbial infection, improve food production, and so on can each involve fermentation or the environmental - lease of microorganisms. Many products of fermentation technology, such as alcoholic beverages, bread, antibiotics, amino acids, vitamins, enzymes, and others, have been influenced by the progress of recombinant DNA techniques. The development of new products or the more efficient manufacturing of those already being produced often involve the use of microorganisms as cell fac- ries for many productions and biotransformations. Microbial Processes and Products is intended to provide practical expe- mental laboratory procedures for a wide range of processes and products me- ated by microorganisms. Although not an exhaustive treatise, it provides a detailed “step-by-step” description of the most recent developments in such applied biotechnological processes. The detailed protocols we provide are cross-referenced in the Notes section, contain critical details, lists of problems and their troubleshooting, as well as safety recommendations that may not n- mally appear in journal articles and can be particularly useful for those un- miliar with specific techniques.

The development of recombinant DNA techniques over the last 20 years has greatly expanded the opportunities for using microorganisms to produce a broad range of valuable substances. In Microbial Processes and Products, outstanding leaders in using microorganisms as cell factories describe in detail their best laboratory procedures for many processes and products mediated by microorganisms. An overview chapter describes how to develop strain improvement programs and strategies to optimize fermentation processes. Taking advantage of the most recent developments in such processes, the authors offer step-by-step experimental methods for the optimal design of microbial metabolite production, including semisynthetic derivatives of cephalosporins, erythromycin, antitumor compounds, plasmids for gene therapy and DNA vaccination, L-lysine, vitamins B2 and B12, the sweet-tasting protein thaumatin, the carotenoids b-carotene and astaxanthin, the polysaccharide gellan, and bacteria-producing bacteria for sausage fermentation. Additionally, the use of phenylacetyl-CoA catabolon for enzymatic synthesis of penicillins, aromatic biotransformations, synthesis of new bioplastics, biosensor design, or synthesis of drug vehicles, and the development of a phosphate encoding gene as a reporter and to monitor gene expression are illustrated.
The diverse chemicals and biochemicals produced can be used in human health, nutrition, and environmental protection. Additional chapters offer techniques for analysis of antimicrobial metabolites and carotenoids, volatile sulfur compounds, metabolic pathway fluxes, gene expression arrays, proteome analysis, bacterial modulation of the innate immune response, bioleaching activity, and heavy metal remediation. Finally, three overview chapters on transport of biological material, deposit of biological material for patent purposes, and protection of biotechnological inventions are shown. The protocols follow the successful Methods in Biotechnology™ series format, each offering step-by-step laboratory instructions, an introduction outlining the principle behind the technique, lists of the necessary equipment and reagents, and tips on troubleshooting and avoiding known pitfalls. A companion volume, Microbial Enzymes and Biotransformations, describes in detail cutting-edge techniques for the screening, evolution, production, immobilization, and use of enzymes.
Wide-ranging and practical, Microbial Processes and Products offers laboratory and industrial scientists a wealth of readily reproducible techniques for the successful microbial generation of biochemical products to serve the needs of human health, nutrition, and environmental protection.