The preservation mechanism is a new pure physical preservation technology. Its characteristics are that the microporous ventilation device of the nuclear pore membrane uses the principle that fresh fruits and vegetables consume oxygen and release carbon dioxide during respiration to spontaneously adjust the ratio of different gases in the sealed package and control the respiration rate of fruits and vegetables, so as to achieve the packaging technology of extending storage and preservation effect.

The main factors affecting the quality and effect of modified atmosphere packaging: 

① Respiration rate of fruit and vegetable products 

② Storage temperature and humidity 

③ Packaging capacity 

④ Quality and size of fruit and vegetable products 

⑤ Original gas composition 

⑥ Characteristics of packaging film