Effect of Modified Atmosphere Package with Varying Carbon Dioxide Concentrations Combined with Controlled Freezing-point Storage to Fresh Keeping of Chilling Pork

Effect of modified atmosphere packaging(MAP) with varying carbon dioxide concentrations combined with controlled freezing-point storage(CFS) on fresh keeping of chilling pork was studied.It was showed that increased level of carbon diox-ide inhabited the microbial growth more effectively,TVB-N values of samples with MAP were all at low level through the storage time,samples with 80%CO2 had the lowest a* value,drip loss of the samples with 20%CO2 was the highest on the 24th d,the sam-ples with littler drip loss had weaker water holding capacity generally.