The combined effect of lactic acid and potassium sorbate on the growth of L. monocytogenes on chicken legs packaged under modified atmospheres (MAP) and stored at 4 °C was evaluated. An extended lag phase and a lower maximum growth rate for psychrotrophs and mesophiles was found in those samples packaged in 20%CO₂/80%N₂ and washed with different combinations of lactic acid and potassium sorbate compared to those non-treated with organic acids. Legs packaged in 20%CO₂/80%N₂ and washed with 3.75% lactic acid- 3.75% potassium sorbate showed a significant (p < 0.05) reduction in L. monocytogenes compared to untreated chicken legs packaged in MAP, which were approximately 2.63 log units lower in the first ones after 8 days of storage. Moreover, this treatment was the most effective in decreasing the maximum growth rate of L. monocytogenes. The chicken legs packaged in atmospheres containing 20%CO₂/80%N₂, had an extended shelf life, but these atmospheres were not able to reduce L. monocytogenes, thus underlining the need for preventive measures so as to control this pathogen. The immersion of chicken legs in a solution containing 3.75% lactic acid- 3.75% potassium sorbate can reduce L monocytogenes populations on fresh chicken packaged in a modified atmosphere.

乳酸和山梨酸钾的上的生长所需的混合效果大号。评估了在改良气氛（MAP）下包装并储存在4°C下的鸡腿上的单核细胞增生李斯特菌。与未用有机酸处理的样品相比，用20％CO ₂ /80％N ₂包装并用乳酸和山梨酸钾的不同组合洗涤的样品中发现了精神营养菌和嗜温菌的延长的滞后期和较低的最大生长速率。。用20％CO ₂ /80％N ₂包装的腿，用3.75％乳酸-3.75％山梨酸钾洗涤后，单核细胞增生李斯特菌显着减少（p <0.05）与MAP包装的未经处理的鸡腿相比，在存放8天后的第一批鸡腿中，鸡腿降低了约2.63 log单位。此外，该处理在降低单核细胞增生李斯特氏菌的最大生长速率方面是最有效的。包装在含20％CO ₂ /80％N _2的气氛中的鸡腿具有延长的保存期限，但是这些气氛不能减少单核细胞增生李斯特氏菌，因此强调需要采取预防措施来控制这种病原体。将鸡腿浸入含有3.75％乳酸-3.75％山梨酸钾的溶液中，可以减少包装在改良气氛下的新鲜鸡肉中L单核细胞增生李斯特菌的种群。