Effects of storage temperature and modified atmosphere packaging on egg preservation

In order to extend the storage period of eggs, the research was carried out to study the effects of modified atmosphere packaging (MAP) with different air components on egg preservation at 25℃ and 4℃. The results showed that eggs were AA degree when stored in MAP with the gas composition of 50%CO2, 7%-11%O2, 39%-43%N2, whereas eggs were dropped to B degree when stored without MAP at 25℃ for 30 days. At 4℃ eggs could be kept well without MAP, but the weight loss rate was relatively higher. There were no different effects in egg preservation between 4℃ and 25℃ storage with MAP. Therefore，this study can provide reference to egg preservation at 25℃ with MAP of 50%CO2, 7%-11%O2, 39%-43%N2.