Special Issue "Bacterial Biofilms and Its Eradication in Food Industry"
Deadline for manuscript submissions: closed (30 November 2020).
Interests: food microorganisms; spoilage; safety; hygiene; natural antimicrobial compounds; starters; food bioprotection and improvement; fermented foods and beverages; microbial ecology; toxin and mycotoxin; biomolecular methods
Special Issues and Collections in MDPI journals
Special Issue in Microorganisms: Microbes and Food
Special Issue in Microorganisms: Bioprotection in Meat and Meat Products
Topical Collection in Microorganisms: Feature Papers in Food Microbiology
In recent years, there has been observed an increase in the number of foodborne infections caused by various microorganisms, including Campylobacter spp., Salmonella spp., Listeria monocytogenes, and many others. This phenomenon may be explained by the microbiological contamination of food, including the primary contamination of the raw materials and the secondary contamination of the final product during its preparation in food plants. One of the main problems in food production is the formation of biofilm by various species of bacteria and fungi.
Many pathogenic microorganisms are able to multiply and then form a biofilm on the surface of food products and within the infrastructure of the food industry. These pathogens are capable of forming biofilm structures on various abiotic surfaces common in the food industry, such as stainless steel, polyethylene, wood, glass, polypropylene, rubber, etc. As a consequence, food products that have contact with such surfaces become a source of pathogens posing a serious threat to the consumer health. Microorganisms whose biofilms constitute the largest and most common problem in food processing plants are, among others, Bacillus cereus, Escherichia coli, Listeria monocytogenes, Salmonella enterica, and Staphylococcus aureus.
Biofilms are complex microbial ecosystems formed by one or more species immersed in the extracellular matrix, with different compositions depending on the type of production environment and colonizing species. The presence of more than one species of bacteria in the biofilm structure significantly affects the increased adhesion of the biofilm to the surface. Mixed biofilms are also characterized by higher resistance to disinfectants, such as quaternary ammonium compounds and other biocides.
The main goal of eradication processes is to reduce the population of microorganisms to the level safe for humans. Sanitization of production equipment is essential to prevent cross-contamination between food batches. Many methods have been developed to prevent and eliminate biofilms in food processing plants, including quorum-sensing inhibition strategies; chemical disinfection; enzymatic degradation strategies of the biofilm structure; non-thermal plasma treatments; and the use of bacteriophages, bacteriocins, biosurfactants, and plant essential oils. Nevertheless, the complex structure of the biofilm results in high resistance of the microorganisms, and thereby it becomes a challenge for scientists to search for new eradication methods that are safe for future consumers and the environment.
For this reason, I believe that there is a need to prepare a Special Issue focused mainly (but not only) on the following:
- Bacterial single and multi-species biofilms in food processing plants;
- The impact of environmental conditions in food processing on the formation of biofilms;
- Physical, chemical, and biological methods of biofilms eradication;
- Resistance of microrganisms in the biofilm to antimicrobial effects and pheno- and genotypic aspects;
- The impact of biofilms on the functioning of devices used in food processing plants;
- The role of biofilms in the spread of microorganisms in food plants;
- Quorum sensing in biofilms;
- The mechanism of biofilm formation.
I would like to invite you to submit your most recent contributions to this Special Issue on bacterial biofilms and their eradication in the food industry.
Prof. Giuseppe Comi
Dr. Krzysztof Skowron
Dr. Joanna Kwiecińska-Piróg
Manuscript Submission Information
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