Study on Modified Atmosphere of Newhall Navel Orange by Different Packing Films

Taken Newhall navel oranges (Citrus sinensis Newhall) as materials, studied on the effectiveness of different packing films (0.025 mm PE, 0.015 mm KDM and 0.02 mm PVC) in navel orange modified atmosphere preservation. The result showed that at 4 °C storage temperature, compared to the 0.015 mm KDM and 0.02 mm PVC, 0.025 mm PE packing film had more effective for decreasing respiration rate, weight loss rate and decay rate during whole storage period of Newhall navel orange. After 150 days storage period, the gas composition within 0.025 mm PE was 17.70% O2 + 4.20% CO2, which provided a steady-state low O2 high CO2 gas environment for navel orange to achieve the best storage quality.