Nitrogen Consumption in the Food Industry | Quality Preservation and Shelf-Life Extension
In today’s competitive food industry, ensuring product quality and extending shelf life are among the primary concerns of manufacturers. One of the most effective and widely adopted methods for achieving these objectives is the use of nitrogen gas in food processing and packaging. Owing to its inert, non-reactive, and non-toxic nature, nitrogen is extensively applied in food packaging, storage, and transportation. Recognizing these advantages, many food processing plants in Iran have transitioned toward on-site nitrogen generation using PSA nitrogen generators, thereby eliminating dependence on costly and potentially hazardous gas cylinders.
Importance of Nitrogen in the Food Industry
The key benefits of nitrogen utilization in food packaging and processing include:
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Prevention of lipid oxidation in oil-rich products such as nuts and potato chips
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Inhibition of bacterial and mold growth through oxygen displacement
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Extension of product shelf life and preservation of freshness
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Maintenance of color, aroma, and flavor in sensitive products such as coffee, dried fruits, meat, and dairy products
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Filling of package headspace using Modified Atmosphere Packaging (MAP) technology
Applications of Nitrogen in Food Industry
| Product Category |
Application of Nitrogen |
| Nuts and dried fruits |
Prevention of spoilage and oxidation |
| Chips and snack foods |
Preservation of freshness and product appearance |
| Meat, poultry, and seafood |
Reduction of microbial and bacterial growth |
| Milk powder |
Prevention of moisture absorption |
| Coffee and tea |
Preservation of natural aroma and flavor |
Components of a Complete Industrial Nitrogen Generation Line
For continuous on-site nitrogen supply, a complete PSA-based industrial nitrogen generation package typically includes the following components:
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Screw Air Compressor – Provides the required compressed air for the system
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Refrigerated or Desiccant Air Dryer – Removes moisture from compressed air
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Micron and Activated Carbon Filters – Eliminate oil aerosols, particulates, and contaminants
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Compressed Air Receiver – Stabilizes pressure and stores compressed air
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PSA Nitrogen Generator – Separates nitrogen from oxygen using Carbon Molecular Sieve (CMS) adsorbent beds
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Nitrogen Storage Tank – Stores the generated nitrogen for stable supply
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Nitrogen Purity Monitoring System – Displays purity levels and enables automatic control
Advantages of PSA Nitrogen Generators over Nitrogen Cylinders
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PSA nitrogen generators provide continuous and uninterrupted nitrogen production, whereas gas cylinders require frequent refilling.
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On-site nitrogen generation is significantly more cost-effective in the long term compared to cylinder-based supply.
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Nitrogen purity in PSA systems is adjustable up to 99.999%, while cylinder-supplied nitrogen typically offers fixed and limited purity levels, often around 95%.
Fidar Faraz Fartak: Specialized Nitrogen Solutions for the Food Industry
Fidar Faraz Fartak is recognized as one of Iran’s specialized manufacturers of compressed air and nitrogen generation systems. The company designs and produces PSA nitrogen generators with a wide range of purities and capacities tailored to food industry requirements.
Key Features of Fidar Nitrogen Generators:
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Industrial-grade design compliant with food industry standards
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Energy-efficient operation with reliable continuous performance
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Utilization of high-quality European and Korean valves and components
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Comprehensive technical support, installation services, and international after-sales support