The microbial biofilms are a community of microorganisms that adhere to each other and to surfaces, typically in a mucilaginous or gel-like matrix composed of extracellular polymeric substances, including polysaccharides, proteins, lipids, and DNA. In the food industry, the bacterial biofilms may be formed on different surfaces and cause post-processing contamination or cross-contamination from the food contact surfaces to food products. Conventional cleaning and sanitizing methods are often ineffective at removing bacterial biofilms. Among more recent alternative methods proposed to address this problem are the use of hydrolytic enzymes, essential oils, and bacteriocins. These methods show promise since their antibacterial and antibiofilm actions involve degradation of the extracellular polymeric matrix of the biofilm and lead to inhibition of the foodborne pathogens present. Understanding the limitations and mechanisms of action of enzymes, bacteriocins, and essential oils in controlling bacterial biofilms on foods and food contact surfaces is essential for developing solutions to prevent and control biofilm formation. This review critically summarizes the current knowledge of bacterial biofilm components, their formation, detection methods, prevention, and removal from food contact surfaces.
The transformation of the food chain due to technological advances has had significant implications in regard to food safety. A noteworthy trend in this evolution relates to the emergence of new or previously unseen pathogens within products, thereby altering the landscape of foodborne illness epidemiology. The escalating frequency of these events underscores the need for a comprehensive re-evaluation of preventive strategies. The occurrence of novel species of bacteria, viruses, parasites, and unusual biotoxins from unexpected sources has challenged the previous limits that had been set to prevent foodborne illness outbreaks. The repercussions, ranging from detrimental effects on public health to economic burden, are influenced by a myriad of factors affecting the evolution of foodborne pathogens and emerging ailments. Among these factors are shifts in population demographics and behaviors, especially dietary patterns, as well as climate extremes, advances in more precise pathogen detection, microbial adaptation, evolving agricultural practices, and transformative changes within the food industry. This review critically examines the impact of technological metamorphosis along the food chain, encompassing production, processing, handling, packaging, storage, transportation, and industry demographics on the dynamics influencing the emergence of foodborne pathogens. Additionally, potential solutions to mitigate and manage this escalating issue are proposed.