Zoellner Claire, Ceres Kristina, Ghezzi-Kopel Kate, Wiedmann Martin, Ivanek Renata
Dept. of Population Medicine and Diagnostic Sciences, Cornell Univ., Ithaca, N.Y. 14850, U.S.A.
Albert R. Mann Library, Univ. Library, 237 Mann Dr, Ithaca, N.Y. 14853, U.S.A.
Compr Rev Food Sci Food Saf. 2018 Sep;17(5):1156-1171. doi: 10.1111/1541-4337.12366. Epub 2018 Jul 6.
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.
食品加工设施中存在的单核细胞增生李斯特菌（Lm），即李斯特菌病的病原体，给食品生产商和食品安全当局带来了巨大挑战。设计一个基于风险的有效环境监测（EM）计划对于在加工环境中发现并消除Lm以防止产品污染至关重要。开展了一项范围界定综述，以整理和综合有关食品加工设施中李斯特菌环境监测的现有研究和指导材料。进行了详尽的搜索以识别所有可用的研究、行业和监管文件，并根据入选标准筛选搜索结果的相关性。筛选后，对198篇参考文献进行了深入审查，并根据在食品加工设施和食品行业进行李斯特菌采样的目标进行了分类。文献梳理揭示了各食品行业的研究和指导空白，因为新鲜农产品仅在10篇参考文献中成为重点，而肉类有72篇、鱼类和海鲜有52篇、乳制品有50篇。对报告的做法和指导的审查突出了环境监测的关键设计要素，包括采样的数量、地点、时间和频率，以及检测和确认方法以及记录保存。虽然利用分子分型方法是一种将继续推进对李斯特菌污染风险理解的趋势，但研究人员改进研究设计和报告标准对于帮助食品行业优化其环境监测设计和决策至关重要。本次综述中识别和综合的文件的全面收集有助于持续努力将Lm污染食品的风险降至最低。
