Antimicrobial Coatings for Food Contact Surfaces: Legal Framework, Mechanical Properties, and Potential Applications

Area of Science:

• Materials Science
• Food Safety
• Microbiology

Background:

• Food contact surfaces (FCS) are prone to contamination by pathogens like Listeria monocytogenes.
• Antimicrobial coatings (AMC) are developed to mitigate microbial contamination on FCS.
• Existing AMC research often overlooks critical mechanical properties and food migration.

Purpose of the Study:

• To review the mechanical properties of AMC for FCS.
• To analyze the interplay between mechanical and antimicrobial properties of AMC.
• To assess AMC within regulatory constraints for practical application.

Main Methods:

• Literature review focusing on mechanical properties (hardness, adhesion) and antimicrobial efficacy.
• Exploration of assessment techniques for coating properties.
• Analysis of deposition methods' impact on AMC characteristics.

Main Results:

• Mechanical properties and food migration are often disregarded in AMC development for FCS.
• A holistic perspective integrating mechanical, antimicrobial, and regulatory aspects is needed.
• Current literature suggests a need for compromise between antimicrobial effectiveness and mechanical stability.

Conclusions:

• Achieving industrial feasibility for AMC on FCS requires balancing antimicrobial function with mechanical integrity.
• Adherence to regulatory frameworks necessitates careful consideration of coating durability and safety.
• Future research should prioritize integrated approaches to AMC development for enhanced food safety.