Biofilms and Meat Safety: A Mini-Review

Area of Science:

• Food Microbiology
• Public Health
• Food Safety

Background:

• Biofilms, surface-attached microbial communities, significantly impact public health and food safety.
• In the meat industry, foodborne pathogens form biofilms in hard-to-sanitize areas, exhibiting enhanced tolerance to sanitizers compared to planktonic cells.
• Commercial biofilms are typically multispecies, with complex interactions influencing biofilm properties and sanitizer resistance.

Purpose of the Study:

• To review the impact of microbial coexistence on mixed biofilm formation by foodborne pathogens in the fresh meat industry.
• To examine the resulting sanitizer tolerance of these mixed biofilms.
• To discuss factors influencing biofilm transfer from surfaces to meat products, a common contamination route.

Main Methods:

• Review of recent studies relevant to the meat industry.
• Analysis of bacterial persistence and biofilm formation mechanisms.
• Examination of microbial interactions within multispecies biofilms.

Main Results:

• Multispecies interactions significantly affect biofilm architecture, activity, and sanitizer tolerance.
• Biofilm formation and persistence are implicated in meat contamination events.
• Understanding these dynamics is key to addressing "high event period" contamination in meat processing.

Conclusions:

• Mixed-species biofilms present unique challenges in the meat industry due to altered sanitizer tolerance.
• Further research into biofilm dynamics and transfer mechanisms is essential for enhancing meat safety strategies.
• Effective control of biofilms is critical for preventing foodborne pathogen contamination in meat products.