Antimicrobial Packaging

Antimicrobial packaging is a system that can kill or inhibit the growth of microorganisms and thus extend the shelf life of perishable products and enhance the safety of packaged products. Antimicrobial packaging can kill or inhibit target microorganisms. Antimicrobial functions of packaging materials/systems can be achieved by creating unfavorable environments to target microorganisms by eliminating their essential growth requirements and rendering contact of antimicrobials to the targetmicroorganisms. These systems are constructed either by containing antimicrobial agents in an independent device (e.g., sachet or pad) or in the packaging materials. Among many applications such as oxygen-scavenging packaging and moisture control packaging, antimicrobial packaging is one of the most promising innovations of active packaging technologies .It either uses antimicrobial packaging materials and/ or antimicrobial agents inside the package space or inside foods. Most food packaging systems consist of the food products, the headspace atmosphere, and the packaging materials. Any one of these three components could incorporate an antimicrobial element to increase antimicrobial efficiency. 

Antimicrobial packaging research generally started with the development of antimicrobial packaging materials that contain antimicrobial chemicals in their macromolecular structures. However, without the use of alternative packaging materials, common packaging materials can be utilized for antimicrobial packaging systems when there is antimicrobial activity in packaged foods or in the inpackage atmosphere. Edible antimicrobial agents can be incorporated into food ingredients, while antimicrobial resources can be interleaved in the inpackage headspace in the form of sachets, films, sheets, or any in-package supplements to generate antimicrobial atmospheres.

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