期刊
FOOD MICROBIOLOGY
卷 105, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fm.2022.104005
关键词
Active packaging; Enterocin A; Bacteriocin; LAE; Dry-cured ham; Antilisterial
资金
- Spanish project, Listeria cero
- CERCA Programme/Gen-eralitat de Catalunya
Active antimicrobial packaging based on polyvinyl alcohol films with Enterocin A or LAE was designed to minimize the survival of Listeria monocytogenes on ready-to-eat products. The Enterocin A-based film demonstrated strong antilisterial activity, immediately reducing L. monocytogenes counts and enhancing the die-off rate during storage. LAE film did not have an immediate bactericidal effect, but reduced the pathogen counts during the shelf life.
To minimize the survival of Listeria monocytogenes on ready-to-eat (RTE)-products, active antimicrobial packaging based on polyvinyl alcohol films with Enterocin A or ethyl-lauroyl-arginate (LAE) have been designed and its antimicrobial activity assessed in vacuum-packed sliced dry-cured ham stored under refrigeration. The Enterocin A-based antimicrobial film exerted a strong antilisterial activity, causing an immediate reduction of L. monocytogenes counts of 1 log units compared with the control without antimicrobial. Besides, Enterocin A film enhanced (4-fold higher) the die-off rate along the 6 months of storage at 8 degrees C. The antilisterial effect of Enterocin A film applied on dry-cured ham complies with the performance criteria requirement of Alternative 1 of the US Listeria rule regarding the control of L. monocytogenes. Films made with LAE did not exert an immediate bactericidal effect but slightly increased the die-off rate of the pathogen and reduced its counts during the shelf life compared to the control batch.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据