Stress Responses of Lactic Acid Bacteria

Stress Responses of Lactic Acid Bacteria PDF Author: Effie Tsakalidou
Publisher: Springer Science & Business Media
ISBN: 0387927719
Category : Technology & Engineering
Languages : en
Pages : 540

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Book Description
Beginning with the basics of lactic acid bacteria and stress response, then working into specific fields of research and current developments, Stress Responses of Lactic Acid Bacteria will serve as an essential guidebook to researchers in the field, industry professionals, and advanced students in the area. The exploration of stress responses in lactic acid bacteria began in the early 90s and revealed the differences that exist between LAB and the classical model microorganisms. A considerable amount of work has been performed on the main genera / species of LAB regarding the genes implicated and their actual role and regulation, and the mechanisms of stress resistance have also been elucidated. Recent genome and transcriptome analyses complement the proteome and genetic information available today and shed a new light on the perception of and the responses to stress by lactic acid bacteria.

Stress Responses of Lactic Acid Bacteria

Stress Responses of Lactic Acid Bacteria PDF Author: Effie Tsakalidou
Publisher: Springer Science & Business Media
ISBN: 0387927719
Category : Technology & Engineering
Languages : en
Pages : 540

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Book Description
Beginning with the basics of lactic acid bacteria and stress response, then working into specific fields of research and current developments, Stress Responses of Lactic Acid Bacteria will serve as an essential guidebook to researchers in the field, industry professionals, and advanced students in the area. The exploration of stress responses in lactic acid bacteria began in the early 90s and revealed the differences that exist between LAB and the classical model microorganisms. A considerable amount of work has been performed on the main genera / species of LAB regarding the genes implicated and their actual role and regulation, and the mechanisms of stress resistance have also been elucidated. Recent genome and transcriptome analyses complement the proteome and genetic information available today and shed a new light on the perception of and the responses to stress by lactic acid bacteria.

Microbial Stress Adaptation and Food Safety

Microbial Stress Adaptation and Food Safety PDF Author: Ahmed E. Yousef
Publisher: CRC Press
ISBN: 1420012827
Category : Science
Languages : en
Pages : 368

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Book Description
The first book to address the subject, Microbial Stress Adaptation and Food Safety emphasizes the implications of stress adaptation and its consequences for food safety. It covers the basic science, kinetics, mechanisms, assessment, and control of stress adaptation and its impact on the safety of foods produced by minimal processing or non-thermal technologies. World renowned experts in the field provide detailed accounts of problems associated with stress adaptation and suggest practical solutions for overcoming these problems.

Stress Responses of Foodborne Pathogens

Stress Responses of Foodborne Pathogens PDF Author: Tian Ding
Publisher: Springer Nature
ISBN: 3030905780
Category : Technology & Engineering
Languages : en
Pages : 618

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Book Description
Food-borne bacterial pathogens encounter a number of stressors during food processing and preservation. More and more pathogens are able to adapt their physiological properties and/or genetic expression to survive these stressors and pose a risk to food safety and public health. This book provides the reader with a comprehensive overview of common food processing-associated stressors (e.g., heat, cold, acid, osmosis, and oxidation) and deals with the molecular basis of the respective bacterial stress response mechanisms (e.g., viable but nonculturable state, biofilm formation, sporulation, and cross-protection response). Additionally, various chapters cover the response mechanisms of foodborne pathogens to emerging nonthermal sterilisation technologies such as ultrasound, high-pressure processing, pulsed electric fields, ultraviolet light, irradiation and phytochemicals. Through this book we also learn about future prospects for the efficient control of stress adaption in foodborne pathogens to ensure maximum consumer safety. This book offers a valuable resource for researchers, graduate students, food process engineers and product developers in the fields of food science and microbiology.

Foodborne Pathogens: Hygiene and Safety

Foodborne Pathogens: Hygiene and Safety PDF Author: Maria Schirone
Publisher: Frontiers Media SA
ISBN: 2889631869
Category :
Languages : en
Pages : 536

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Book Description


Industrial and Environmental Biotechnology

Industrial and Environmental Biotechnology PDF Author: Nuzhat Ahmed
Publisher: Horizon Press
ISBN: 9781898486527
Category : Science
Languages : en
Pages : 0

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Book Description
The contamination of the environment by herbicides, pesticides, solvents, various industrial byproducts (including toxic metals, radionucleotides and metalloids) is of enormous economic and environmental significance. Biotechnology can be used to develop "green" or environmentally friendly solutions to these problems by harnessing the ability of bacteria to adapt metabolic pathways, or recruit new genes to metabolise harmful compounds into harmless byproducts. In addition to its role in cleaning-up the environment, biotechnology can be used for the production of novel compounds with both agricultural and industrial applications. Internationally acclaimed authors from diverse fields present comprehensive reviews of all aspects of Industrial and Environmental Biotechnology. Chapters concerned with environmental biotechnology cover two major categories of pollutants: organic compounds and metals. Organic pollutants include cyclic aromatic compounds, with/without nitrogenous or chloride substitutions while metal pollutants include copper, chromate, silver, arsenic and mercury. The genetic basis of bioremediation and the microbial processes involved are examined, and the current and/or potential applications of bioremediation are discussed. The use of biotechnology for industrial and agricultural applications includes a chapter on the use of enzymes as biocatalysts to synthesize novel opiate derivatives of medical value. The conversion of low-value molasses to higher value products by biotechnological methods and the use tissue culture methods to improve sugar cane and potatoes crop production is discussed.

Understanding Pathogen Behaviour

Understanding Pathogen Behaviour PDF Author: M. Griffiths
Publisher: Elsevier
ISBN: 1845690222
Category : Technology & Engineering
Languages : en
Pages : 632

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Book Description
Pathogens respond dynamically to their environment. Understanding their behaviour is critical both because of evidence of increased resistance to established sanitation and preservation techniques, and because of the increased use of minimal processing technologies which are more vulnerable to the development of resistance. Understanding pathogen behaviour summarises the wealth of recent research and its implications for the food industry.After two introductory chapters on ways of analysing and modelling pathogens, Part one summarises current research on what determines pathogenicity, stress response, adaptation and resistance. Part two reviews the behaviour of particular pathogens, reviewing virulence, stress response and resistance mechanisms in such pathogens as Salmonella, E.coli and Campylobacter. The final part of the book assesses how pathogens react and adapt to particular stresses from heat treatment and the effects of low temperature to the use of disinfectants and sanitisers.With its distinguished editor and international team of contributors, Understanding pathogen behaviour is a standard reference for the food industry in ensuring food safety. - Summarises the wealth of recent research in pathogen behaviour - Assesses implications for microbiologists and QA staff in the food industry

Foodborne Pathogens

Foodborne Pathogens PDF Author: Joshua B. Gurtler
Publisher: Springer
ISBN: 3319568361
Category : Technology & Engineering
Languages : en
Pages : 653

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Book Description
Foodborne illnesses continue to be a major public health concern. All members of a particular bacterial genera (e.g., Salmonella, Campylobacter) or species (e.g., Listeria monocytogenes, Cronobacter sakazakii) are often treated by public health and regulatory agencies as being equally pathogenic; however, this is not necessarily true and is an overly conservative approach to ensuring the safety of foods. Even within species, virulence factors vary to the point that some isolates may be highly virulent, whereas others may rarely, if ever, cause disease in humans. Hence, many food safety scientists have concluded that a more appropriate characterization of bacterial isolates for public health purposes could be by virotyping, i.e., typing food-associated bacteria on the basis of their virulence factors. The book is divided into two sections. Section I, “Foodborne Pathogens and Virulence Factors,” hones in on specific virulence factors of foodborne pathogens and the role they play in regulatory requirements, recalls, and foodborne illness. The oft-held paradigm that all pathogenic strains are equally virulent is untrue. Thus, we will examine variability in virulence between strains such as Listeria, Salmonella, Campylobacter, Cronobacter, etc. This section also examines known factors capable of inducing greater virulence in foodborne pathogens. Section II, “Foodborne Pathogens, Host Susceptibility, and Infectious Dose” , covers the ability of a pathogen to invade a human host based on numerous extraneous factors relative to the host and the environment. Some of these factors include host age, immune status, genetic makeup, infectious dose, food composition and probiotics. Readers of this book will come away with a better understanding of foodborne bacterial pathogen virulence factors and pathogenicity, and host factors that predict the severity of disease in humans.

Industrial and Host Associated Stress Responses in Food Microbes. Implications for Food Technology and Food Safety

Industrial and Host Associated Stress Responses in Food Microbes. Implications for Food Technology and Food Safety PDF Author: Lorena Ruiz
Publisher: Frontiers Media SA
ISBN: 288945293X
Category :
Languages : en
Pages : 295

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Book Description
Throughout the food processing chain and after ingestion by the host, food associated bacteria have to cope with a range of stress factors such as thermal and/or non-thermal inactivation treatments, refrigeration temperatures, freeze-drying, high osmolarity, acid pH in the stomach or presence of bile salts in the intestine, that threaten bacterial survival. The accompanying plethora of microbial response and adaptation phenomena elicited by these stresses has important implications for food technology and safety. Indeed, while resistance development of pathogenic and spoilage microorganisms may impose health risks for the consumer and impart great economic losses to food industries, reduced survival of probiotic bacteria may strongly compromise their claimed health benefit attributes. As a result, substantial research efforts have been devoted in the last decades to unravel the mechanisms underlying stress response and resistance development in food associated microorganisms in order to better predict and improve (i) the inactivation of foodborne pathogens and spoilage microorganisms on the one hand and (ii) the robustness and performance of beneficial microorganisms on the other. Moreover, the recent implementation of system-wide omics and (single-)cell biology approaches is greatly boosting our insights into the modes of action underlying microbial inactivation and survival. This Research Topic aims to provide an avenue for dissemination of recent advances within the field of microbial stress response and adaptation, with a particular focus not only on food spoilage and pathogenic microorganisms but also on beneficial microbes in foods.

Foodborne Pathogens and Food Safety

Foodborne Pathogens and Food Safety PDF Author: Md Latiful Bari
Publisher: CRC Press
ISBN: 9780367737528
Category : Food
Languages : en
Pages : 318

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Book Description
Foodborne pathogens continue to cause major public health problems worldwide and have escalated to unprecedented levels in recent years. In this book, major foodborne diseases and the key food safety issues are discussed elaborately. In addition, emerging and reemerging microbial agents and other food safety related topics are discussed. This book also addresses the challenges facing both developed and developing countries to ensure food safety in the development of new food products and processing technologies, internationalization of food trade, safety of foods derived from biotechnology, microbiological risks, and emergence of new and antibiotic-resistant pathogens, particularly from emerging pathogens. This book was written so that readers can easily understand content aimed at enhancing continuing global efforts to deliver safe food and improve health and environmental conditions in developing countries. The book is useful in getting the latest information in food safety and foodborne pathogens. The comprehensive contents include coverage of: Foodborne microbial agents and their growth, survival, and death in food Emerging and reemerging foodborne pathogens Emergence of drug-resistant pathogens Impact of climate change on foodborne pathogens Technology for rapid and accurate detection of foodborne pathogens Risk analysis, assessment, and pathogen management in food Strategies to destroy or control foodborne pathogens Biosecurity issues and the implications of new regulatory guidelines Worldwide food safety status

Nanostructures for Antimicrobial Therapy

Nanostructures for Antimicrobial Therapy PDF Author: Anton Ficai
Publisher: Elsevier
ISBN: 0323461514
Category : Science
Languages : en
Pages : 724

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Book Description
Nanostructures for Antimicrobial Therapy discusses the pros and cons of the use of nanostructured materials in the prevention and eradication of infections, highlighting the efficient microbicidal effect of nanoparticles against antibiotic-resistant pathogens and biofilms. Conventional antibiotics are becoming ineffective towards microorganisms due to their widespread and often inappropriate use. As a result, the development of antibiotic resistance in microorganisms is increasingly being reported. New approaches are needed to confront the rising issues related to infectious diseases. The merging of biomaterials, such as chitosan, carrageenan, gelatin, poly (lactic-co-glycolic acid) with nanotechnology provides a promising platform for antimicrobial therapy as it provides a controlled way to target cells and induce the desired response without the adverse effects common to many traditional treatments. Nanoparticles represent one of the most promising therapeutic treatments to the problem caused by infectious micro-organisms resistant to traditional therapies. This volume discusses this promise in detail, and also discusses what challenges the greater use of nanoparticles might pose to medical professionals. The unique physiochemical properties of nanoparticles, combined with their growth inhibitory capacity against microbes has led to the upsurge in the research on nanoparticles as antimicrobials. The importance of bactericidal nanobiomaterials study will likely increase as development of resistant strains of bacteria against most potent antibiotics continues. - Shows how nanoantibiotics can be used to more effectively treat disease - Discusses the advantages and issues of a variety of different nanoantibiotics, enabling medics to select which best meets their needs - Provides a cogent summary of recent developments in this field, allowing readers to quickly familiarize themselves with this topic area