Time:2025-06-07 Browse: 33
The box-type modified atmosphere packaging machine inhibits the growth of microorganisms and delays the oxidation process by filling the packaging box with a specific proportion of mixed gas (such as nitrogen, carbon dioxide, oxygen, etc.), thereby extending the shelf life of the product and maintaining freshness. It is applicable to a wide range of products, mainly concentrated in the food field. The following is a specific classification and feature description:
1. Fresh and meat products
Fresh meat and cut meat
Product types: fresh meat such as pork, beef, and mutton, and cut parts (such as tenderloin and ribs).
Packaging advantages: Filling a high proportion of carbon dioxide (such as 30%-50%) inhibits bacterial growth, and nitrogen filling prevents oxidation and discoloration, extending the shelf life to 7-15 days.
Poultry and aquatic products
Product types: chicken, duck, salmon, shrimp, etc.
Packaging advantages: Reduce juice loss through gas replacement, keep meat fresh and tender, and inhibit the growth of aerobic bacteria.
2. Cooked food and ready-to-eat products
Cooked meat products
Product types: stewed food, sausage, ham, braised beef, etc.
Packaging advantages: Low oxygen environment (oxygen content <2%) inhibits anaerobic bacteria, nitrogen filling prevents extrusion and deformation, and extends the shelf life to 15-30 days.
Baking and pastry
Product types: bread, cake, pizza, sandwiches, etc.
Packaging advantages: High proportion of carbon dioxide (such as 60%-80%) inhibits mold, nitrogen prevents water loss, and maintains a soft taste.
3. Fruits and vegetables and agricultural products
Fresh fruits and vegetables
Product types: lettuce, spinach, strawberries, blueberries, mushrooms, etc.
Packaging advantages:
High oxygen (20%-30%): delays the respiration of fruits and vegetables (such as lettuce and mushrooms).
Low oxygen (3%-5%) + high carbon dioxide (5%-10%): inhibits ethylene production and extends the shelf life (such as strawberries and blueberries).
Cut vegetables
Product types: salad vegetables, clean vegetables, ready-to-eat vegetable packages.
Packaging advantages: inhibit microorganisms through gas ratio and extend the shelf life to 7-10 days.
4. Dairy and soy products
Cheese and dairy products
Product types: cheddar cheese, mozzarella cheese, yogurt cubes, etc.
Packaging advantages: low oxygen environment inhibits mold, and nitrogen filling prevents surface cracking.
Soy products
Product types: tofu, dried tofu, vegetarian meat, etc.
Packaging advantages: high carbon dioxide inhibits bacteria and extends the shelf life to 5-7 days.
5. Other foods
Convenience foods
Product types: instant rice, instant soup bags, pre-prepared dishes, etc.
Packaging advantages: extend the shelf life through gas replacement while maintaining the product shape.
Dry goods and snacks
Product types: nuts, dried fruits, puffed foods, etc.
Packaging advantages: filling with nitrogen to prevent oxidation and moisture, and maintain a crispy taste.
6. Non-food products (special applications)
Medical devices and drugs
Product types: disposable syringes, medical dressings, Chinese herbal medicine pieces, etc.
Packaging advantages: low oxygen environment inhibits microorganisms, nitrogen filling prevents oxidation, and extends the shelf life.
Electronic products and precision parts
Product types: circuit boards, sensors, optical components, etc.
Packaging advantages: Fill with dry nitrogen to prevent oxidation and moisture.
Selection suggestions
Adjust the gas ratio according to product characteristics
For example: fresh meat requires high carbon dioxide to inhibit bacteria, and fruits and vegetables require low oxygen to delay respiration.
Consider the material and sealing of the packaging box
It is recommended to use high barrier materials (such as PET/PE composite film) to maintain the gas concentration.
Choose the model based on the production scale
Semi-automatic models can be selected for small production lines, and fully automatic continuous equipment is required for large-scale production.
Summary
Box-type modified atmosphere packaging machines are suitable for products with high requirements for freshness, easy oxidation or easy corruption. By accurately controlling the gas composition, the shelf life can be significantly extended and the product quality can be maintained. When purchasing, it is necessary to combine product characteristics, gas ratio requirements and production scale, and choose suppliers with mature technology and perfect services.
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