壳聚糖涂膜结合气调包装延长鸡肉保质期

A Combination of Chitosan,Coating and Modified Atmosphere Packaging for Prolonging Chicken Meat Shelf Life

研究5℃冷藏条件下,结合气调包装(气体比例25%CO2,50%O2,25%N2)和1%壳聚糖溶液涂膜对鸡肉样品的综合保鲜效应。结果表明:感官评价贮藏期为13d,硫化氢实验贮藏期为11d,菌落数贮藏期为11d,此时pH值最佳,脂质氧化速度最慢,因此,鸡肉样品保质期可达到11d。

On the refrigeration（5℃） conditions,modified atmosphere packaging（25% CO2,50% O2,25% N2） and chitosan coating（chitosan concentration was 1%） were combined to deal with chicken samples.The results showed that the storage period for sensory evaluation was 13d and for hydrogen sulfide detection and microbial colonies,were 11d and 11d,respectively.Within this period,pH value was the best and the rate of lipid oxidation was the slowest.Therefore,the period of preservation can be extended to 11d in hurdle technology.