Occurrence of Listeria monocytogenes (Lm), the causative agent of listeriosis, in food processing facilities presents considerable challenges to food producers and food safety authorities. Design of an effective, risk‐based environmental monitoring (EM) program is essential for finding and eliminating Lm from the processing environment to prevent product contamination. A scoping review was conducted to collate and synthesize available research and guidance materials on Listeria EM in food processing facilities. An exhaustive search was performed to identify all available research, industry and regulatory documents, and search results were screened for relevance based on eligibility criteria. After screening, 198 references were subjected to an in‐depth review and categorized according to objectives for conducting Listeria sampling in food processing facilities and food sector. Mapping of the literature revealed research and guidance gaps by food sector, as fresh produce was the focus in only 10 references, compared to 72 on meat, 52 on fish and seafood, and 50 on dairy. Review of reported practices and guidance highlighted key design elements of EM, including the number, location, timing and frequency of sampling, as well as methods of detection and confirmation, and record‐keeping. While utilization of molecular subtyping methods is a trend that will continue to advance understanding of Listeria contamination risks, improved study design and reporting standards by researchers will be essential to assist the food industry optimize their EM design and decision‐making. The comprehensive collection of documents identified and synthesized in this review aids continued efforts to minimize the risk of Lm contaminated foods.

中文翻译：

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食品加工设施中李斯特菌环境监测计划的设计要素：研究和指导材料的范围回顾

发生李斯特菌（LM），李斯特菌病的病原体，在食品加工设施礼物给食品生产和食品安全主管部门相当大的挑战。设计有效的，基于风险的环境监控（EM）程序对于从加工环境中查找和消除Lm以防止产品污染至关重要。进行了范围界定审查，以整理和综合有关李斯特菌的现有研究和指导材料EM在食品加工设施中。进行了详尽的搜索以识别所有可用的研究，行业和法规文件，并根据资格标准筛选了搜索结果的相关性。筛选后，对198名参考文献进行了深入审查，并根据进行李斯特菌的目标进行了分类在食品加工设施和食品部门进行抽样。文献图显示，食品行业在研究和指导方面存在差距，因为新鲜农产品仅是10种参考文献的重点，而肉类为72种，鱼类和海鲜类为52种，乳制品类为50种。对报告的实践和指导的审查强调了环境管理的关键设计要素，包括采样的数量，位置，时间和频率，以及检测和确认的方法以及记录的保存。尽管利用分子分型方法是一种趋势，它将继续增进对李斯特菌的了解污染风险，研究人员改进研究设计和报告标准对于协助食品行业优化其EM设计和决策至关重要。本次审查中确定和综合的文件的全面收集有助于继续努力，以最大程度地减少受Lm污染的食品的风险。