Lactic Acid Bacteria: Genetics, Metabolism and Applications


Book Description

Foods fermented with lactic acid bacteria are an important part of the human diet. Lactic acid bacteria play an essential role in the preservation of food raw materials and contribute to the nutritional, organoleptic, and health properties of food products and animal feed. The importance of lactic acid bacteria in the production of foods throughout the world has resulted in a continued scientific interest in these micro-organisms over the last two decades by academic research groups as well as by industry. This research has resulted in a number of important scientific breakthroughs and has led to new applications. The most recent of these advances is the establishment of the complete genome sequences of a number of different lactic acid bacterial species. To communicate and stimulate the research on lactic acid bacteria and their applications, a series of tri-annual symposia on lactic acid bacteria was started in 1983 under the auspices of the Netherlands Society for Microbiology (NVVM), which was later also supported by the Federation of European Microbiological Societies (FEMS). The aim of these state-of-the-art symposia is to offer a unique platform for universities, institutes, and industry in this area of biotechnology, to present recent work, to obtain information on new developments, and to exchange views with colleagues from all over the world on scientific progress and applications. The growing number of participants at these symposia has been a clear demonstration of the interest of the international industrial and scientific community in this area of research. The 7th Symposium is based on a number of plenary lectures that review the scientific progress of the last years in the different areas of research on lactic acid bacteria, and which are documented in this special issue of Antonie van Leeuwenhoek.










Prokaryotic Metabolism and Physiology


Book Description

Extensive and up-to-date review of key metabolic processes in bacteria and archaea and how metabolism is regulated under various conditions.




Listeria monocytogenes: Pathogenesis and Host Response


Book Description

During the past twenty years Listeria monocytogenes has emerged as one of the most intensely studied bacterial pathogens. New windows are constantly being opened into the complexity of host cell biology and the interplay of the signals connecting the various cells and organs involved in the host response. This volume includes research from studies at the molecular level on the pathogenesis of Listeria monocytogenes and the response of the host to its infections.




Bacterial Physiology and Metabolism


Book Description

Recent determination of genome sequences for a wide range of bacteria has made in-depth knowledge of prokaryotic metabolic function essential in order to give biochemical, physiological, and ecological meaning to the genomic information. Clearly describing the important metabolic processes that occur in prokaryotes under different conditions and in different environments, this advanced text provides an overview of the key cellular processes that determine bacterial roles in the environment, biotechnology, and human health. Prokaryotic structure is described as well as the means by which nutrients are transported into cells across membranes. Glucose metabolism through glycolysis and the TCA cycle are discussed, as well as other trophic variations found in prokaryotes, including the use of organic compounds, anaerobic fermentation, anaerobic respiratory processes, and photosynthesis. The regulation of metabolism through control of gene expression and control of the activity of enzymes is also covered, as well as survival mechanisms used under starvation conditions.




Mechanisms and Regulation of Carbohydrate Transport in Bacteria


Book Description

Mechanisms and Regulation of Carbohydrate Transport in Bacteria reviews the developments in the study of the mechanisms and regulation of carbohydrate transport in prokaryotic organisms. The book presents the progress made in the understanding of transport and regulation of carbohydrates in bacteria in the molecular level. Aspects on the important structural and topographical features of several sugar permeases in Escherichia coli are elucidated; the energy-coupling processes are clearly delineated for most (but not all) types of bacterial carbohydrate permease systems; and mechanistic details ...




Microbiology


Book Description

As a group of organisms that are too small to see and best known for being agents of disease and death, microbes are not always appreciated for the numerous supportive and positive contributions they make to the living world. Designed to support a course in microbiology, Microbiology: A Laboratory Experience permits a glimpse into both the good and the bad in the microscopic world. The laboratory experiences are designed to engage and support student interest in microbiology as a topic, field of study, and career. This text provides a series of laboratory exercises compatible with a one-semester undergraduate microbiology or bacteriology course with a three- or four-hour lab period that meets once or twice a week. The design of the lab manual conforms to the American Society for Microbiology curriculum guidelines and takes a ground-up approach -- beginning with an introduction to biosafety and containment practices and how to work with biological hazards. From there the course moves to basic but essential microscopy skills, aseptic technique and culture methods, and builds to include more advanced lab techniques. The exercises incorporate a semester-long investigative laboratory project designed to promote the sense of discovery and encourage student engagement. The curriculum is rigorous but manageable for a single semester and incorporates best practices in biology education.




The Evolution of Metabolic Function


Book Description

The Evolution of Metabolic Function presents comprehensive discussions on a variety of topics that will interest scientists and students studying the evolution of enzyme activities, the evolution of enzymatic pathways, and the evolution and development of metabolic functions. Laboratory experiments designed to develop new enzyme activities and new metabolic pathways are discussed. The most recent techniques comparing protein and gene structures are used to analyze and discuss the evolution and development of such metabolic functions as the bacterial phosphoenolpyruvate:sugar phosphotransferase system, the mandelate pathway of microorganisms, bacterial alcohol metabolism, and certain microbial amino acid biosynthetic pathways. The book also includes some unique speculations regarding the origin of early Archaean cells and the prebiotic evolution of complex molecules.




Lactic Acid Bacteria


Book Description

Through four editions, Lactic Acid Bacteria: Microbiological and Functional Aspects, has provided readers with information on the how’s and why’s lactic acid-producing fermentation improves the storability, palatability, and nutritive value of perishable foods. Thoroughly updated and fully revised, with 12 new chapters, the Fifth Edition covers regulatory aspects globally, new findings on health effects, properties and stability of LAB as well as production of target specific LAB. The new edition also addresses the technological use of LAB in various fermentations of food, feed and beverage, and their safety considerations. It features the detailed description of the main genera of LAB as well as such novel bacteria as fructophilic LAB and novel probiotics and discusses such new targets as cognitive function, metabolic health, respiratory health and probiotics. Key Features: In 12 new chapters, findings are presented on health effects, properties and stability of LAB as well as production of target specific LAB Covers such novel bacteria as fructophilic LAB and novel probiotics Presents new discoveries related to the mechanisms of lactic acid bacterial metabolism and function Covers the benefits of LAB, both in fermentation of dairy, cereal, meat, vegetable and silage, and their health benefits on humans and animals Discusses the less-known role of LAB as food spoilers Covers the global regulatory framework related to safety and efficacy