Controlled Atmosphere (CA) storage is the gold standard for long-term fresh fruit and vegetable preservation. When matched with an industrial ozone generator, the CA storage system achieves superior preservation effects beyond simple oxygen and carbon dioxide regulation.
Ozone gas inside cold storage and CA chambers eliminates mold, bacteria and pathogens on produce surfaces. Meanwhile, ozone oxidizes ethylene—the ripening hormone released by fruits, slowing down over-ripening, softening and rot. Unlike chemical preservatives, ozone decomposes into oxygen without residues, meeting global food safety standards.
This integrated ozone + CA storage solution is widely adopted for apples, grapes, passion fruit, mangoes and other premium fruits, greatly extending postharvest shelf life and reducing inventory loss for cold storage operators.
Technical Information & Parameters
Core Working Principle
- Sterilization: Ozone destroys cell structure of fungi, yeast and spoilage bacteria to prevent mildew and fruit rot.
- Ethylene Removal: Ozone chemically oxidizes C₂H₄ to suppress premature ripening of climacteric fruits.
- Air Purification: Remove odors and volatile contaminants inside sealed CA storage chambers.
- Residue-free: Ozone automatically decomposes into O₂ within 20–40 minutes, no chemical leftover on agricultural products.
Typical Technical Specifications
- Ozone Output Range: 5g/h – 200g/h (customizable for different storage volume)
- Power Supply: 220V/380V 50/60Hz
- Cooling Mode: Air cooling / Water cooling (high capacity models)
- Ozone Concentration Control: Adjustable output 0–100%
- Housing Material: Stainless steel 304, corrosion resistant for humid cold room environment
- Working Environment: Temperature 2–40℃, Humidity ≤90%RH
- Matching System: Compatible with CA storage monitoring system (O₂, CO₂, C₂H₄, O₃ sensors)
- Safety: Overheat protection, timing function, optional ozone residual destruction unit
Application Scenarios
✅ CA Controlled Atmosphere Storage Warehouse
✅ Low-temperature fruit cold storage room
✅ Postharvest sorting workshop
✅ Fruit transport container refrigeration space
✅ Pre-storage fruit disinfection chamber
Suitable Produce: Apple, grape, passion fruit, kiwi, avocado, mango, citrus, berry fruits and many vegetables.
Economic Benefits
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Reduce Fruit Rot Loss Rate
Ozone inhibits mold and bacterial infection. Actual operation data shows fruit wastage rate can drop from 15%–25% down to 3%–8% in long-term CA storage. Massive reduction of direct commodity losses.
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Extend Market Supply Period
Combined ozone + CA storage delays fruit ripening, extends storage cycle by 20%–60%. Merchants can stagger delivery to avoid centralized market saturation and obtain higher off-season sales prices.
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Cancel or Reduce Chemical Preservatives
Eliminate chemical fungicide soaking treatment. Lower chemical purchasing cost, and produce meets organic & export food requirements, easier access to high-end and overseas markets.
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Low Operating Cost
Ozone generator consumes only electricity; no continuous consumables. Equipment investment pays back within 1–2 storage seasons for medium & large cold storage plants.
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Improve Product Market Grade
Less rot, better appearance, longer shelf life for retail. Boost brand competitiveness and support premium pricing for fresh fruits.
Blog Outline
- Introduction: Challenges of Postharvest Fruit Storage
- What is CA Controlled Atmosphere Storage
- Why Combine Industrial Ozone Generator with CA Storage
- Working Mechanism of Ozone for Fresh Produce Preservation
- Technical Parameters & System Matching Requirements
- Practical Application Cases (Passion Fruit, Apple, Grape Storage)
- Economic Analysis & Return on Investment
- Operation Notes for Ozone in Cold & CA Storage
- Conclusion & Product Inquiry
