The Benefits of Nitrogen Gas for Modified Atmosphere Packaging
Modified Atmosphere Packaging (MAP) is a technique commonly used in the food processing industry to extend shelf life. The MAP process involves displacing the air inside a package with a protective gas to keep oxygen at controlled levels. Too much oxygen and moisture in a package often leads to bacterial growth and oxidation resulting in spoilage, inconsistent flavors, poor product quality, and shortened shelf life.
This white paper explores:
- Food spoilage mechanisms
- Gases commonly used in modified atmosphere packaging and applications for each gas
- Nitrogen gas sterility compliance
- A case study detailing food grade nitrogen vs. liquid nitrogen
- Determining gas ratios and purity within the finished packaged product
- Gas mixing
- Types of modified atmosphere packing machines
- Typical gas mixes by food product
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Parker Hannifin
Industrial Gas Filtration and Generation Division
242 Neck Road
Haverhill, MA 01835
Tel: (800) 343-4048
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