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Biofilms are multicellular sessile microbial communities embedded in hydrated extracellular polymeric matrices. Their formation is common in microbial life in most environments, whereas those formed on food-processing surfaces are of considerable interest in the context of food hygiene. Biofilm cells express properties that are distinct from planktonic ones, in particular, due to their notorious resistance to antimicrobial agents. Thus, a special feature of biofilms is that once they have developed, they are hard to eradicate, even when careful sanitization procedures are regularly applied. A large amount of ongoing research has investigated how and why surface-attached microbial communities develop such resistance, and several mechanisms can be acknowledged, such as heterogeneous metabolic activity, cell adaptive responses, diffusion limitations, genetic and functional diversification, and microbial interactions. The articles contained in this Special Issue deal with biofilms of some important food-related bacteria (including common pathogens such as Salmonella enterica, Listeria monocytogenes, and Staphylococcus aureus, as well as spoilage-causing spore-forming bacilli), providing novel insights into their resistance mechanisms and implications, together with novel methods (e.g., use of protective biofilms formed by beneficial bacteria, enzymes) that could be used to overcome resistance and thus improve the safety of our food supply and protect public health.

Salmonella --- biofilm --- morpothypes --- stainless steel --- food residues --- tomato --- poultry --- milk --- biofilms --- DNase I --- pre-treatment --- post-treatment --- mixed species biofilm --- disintegration of matrix --- antibiofilm methods --- bacteriocins --- biocides --- food industry --- food safety --- Listeria monocytogenes --- resistance --- lactic acid bacteria --- probiotic potential --- staphylococci --- mastitis --- dairy industry --- Bacillus species --- biofilm derived spores --- cleaning-in-place --- disinfecting effect --- disinfectants --- transcriptome --- foodborne pathogens --- dairy bacilli --- stress adaptation --- disinfection --- biocontrol --- enzymes

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Pour garantir et maîtriser la sécurité microbiologique des aliments et prévenir les crises sanitaires alimentaires, la connaissance et la surveillance des micro-organismes pathogènes depuis la production primaire jusqu'à la distribution des denrées alimentaires en passant par la transformation, sont indispensables. Cet ouvrage de référence traite des dangers microbiologiques alimentaires majeurs (micro-organismes infectieux ou toxines d'origine microbienne) et des risques associés pour l'Homme.Illustré de nombreux schémas et tableaux de synthèse, il fait un point complet sur les notions fondamentales de microbiologie générale, de physiologie microbienne et de modélisation, en les appliquant aux micro-organismes pathogènes des aliments et en y intégrant les dernières avancées. Il présente ensuite les outils de gestion du risque microbiologique mis en place au niveau européen et français. Enfin, les micro-organismes avérés ou émergents d'intérêt font l'objet de monographies claires et détaillées permettant de bien les connaître pour mieux les maîtriser. Cet ouvrage s'adresse aux managers, ingénieurs et techniciens des industries agroalimentaires (des secteurs qualité-hygiène, production, achats, recherche et développement...), aux professionnels du contrôle sanitaire et de la gestion du risque (laboratoires d'analyses et instances officielles) ainsi qu'aux enseignants-chercheurs et aux étudiants dans le domaine de la microbiologie appliquée à l'agroalimentaire et des risques sanitaires.

Aliments --- Microbiologie alimentaire. --- Contamination. --- Food contamination --- Food --- Microbiology --- Food microbiology --- Food Microbiology. --- Food Contamination. --- Food - Microbiology --- Food Microbiology --- Food Contamination