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Effectiveness of polymeric coated films containing bacteriocin-producer living bacteria for Listeria monocytogenes control under simulated cold chain break

机译:模拟冷链断裂下含细菌素生产者活菌的聚合物涂膜对单核细胞增生李斯特菌控制的有效性

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摘要

Nisin, enterocin 416K1 and living bacteriocin-producer Enterococcus casseliflavus IM 416K1 have been entrapped in polyvinyl alcohol (PVOH) based coatings applied to poly (ethylene terephthalate) (PET) films, and their effectiveness in the control of the growth of Listeria monocytogenes ATCC 19117 has been tested. The anti-listerial activity of the doped coated films was evaluated by both a modified agar diffusion assay and a direct contact with artificially contaminated precooked chicken fillets stored at 4 degrees C, 22 degrees C and under simulated cold chain break conditions (1 day at 30 degrees C).
机译:乳链菌肽,肠球菌素416K1和活细菌生产菌肠球菌IM 416K1已被困在聚乙烯醇(PVOH)的涂料中,该涂料用于聚对苯二甲酸乙二酯(PET)膜,它们在控制单核细胞增生性李斯特菌生长方面的有效性ATCC 19117已经过测试。掺杂的涂膜的抗李斯特氏菌活性通过改良的琼脂扩散分析和与人工污染的预煮鸡柳的直接接触来评估,该鸡柳在4摄氏度,22摄氏度和模拟的冷链断裂条件下(30天1天)摄氏度)。

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