Research conducted by Air Products has shown that the amount of carbon dioxide (CO2) used in Modified Atmosphere Packaging (MAP) can be reduced to as low as 20% while still maintaining the ability to extend the shelf life of food products.
MAP is an established and effective technology, proven to extend the shelf life of packaged foods without the need for added preservatives. It works by replacing the atmospheric air present in food packaging with CO2, nitrogen or oxygen, either on their own or in combination, depending on the product.
The role of CO2 is to inhibit the growth of microorganisms and extended the shelf life.
Air Products carried out the research to clarify the relationship between shelf life and the reduction of CO2 in the MAP mix. The research evaluated several gas mixtures with differing CO2 concentrations to determine the lowest CO2 content able to prolong food shelf life.
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