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Urgent scientific and technical assistance to provide recommendations for sampling and testing in the processing plants of frozen vegetables aiming at detecting Listeria monocytogenes

2018; European Food Safety Authority; Volume: 15; Issue: 7 Linguagem: Inglês

10.2903/sp.efsa.2018.en-1445

2397-8325

European Food Safety Authority, Ana Allende, Léna Barre, Liesbeth Jacxsens, E. Liébana, Winy Messens, Eleonora Sarno, Maria Teresa da Silva Felício,

Microbial Inactivation Methods

EFSA Supporting PublicationsVolume 15, Issue 7 1445E Technical reportOpen Access Urgent scientific and technical assistance to provide recommendations for sampling and testing in the processing plants of frozen vegetables aiming at detecting Listeria monocytogenes European Food Safety Authority (EFSA), European Food Safety Authority (EFSA)Search for more papers by this authorAna Allende, Ana AllendeSearch for more papers by this authorLéna Barre, Léna BarreSearch for more papers by this authorLiesbeth Jacxsens, Liesbeth JacxsensSearch for more papers by this authorErnesto Liebana, Ernesto LiebanaSearch for more papers by this authorWiny Messens, Winy MessensSearch for more papers by this authorEleonora Sarno, Eleonora SarnoSearch for more papers by this authorMaria Teresa da Silva Felicio, Maria Teresa da Silva FelicioSearch for more papers by this author European Food Safety Authority (EFSA), European Food Safety Authority (EFSA)Search for more papers by this authorAna Allende, Ana AllendeSearch for more papers by this authorLéna Barre, Léna BarreSearch for more papers by this authorLiesbeth Jacxsens, Liesbeth JacxsensSearch for more papers by this authorErnesto Liebana, Ernesto LiebanaSearch for more papers by this authorWiny Messens, Winy MessensSearch for more papers by this authorEleonora Sarno, Eleonora SarnoSearch for more papers by this authorMaria Teresa da Silva Felicio, Maria Teresa da Silva FelicioSearch for more papers by this author First published: 03 July 2018 https://doi.org/10.2903/sp.efsa.2018.EN-1445Citations: 5 Requestor: European Commission Question number: EFSA-Q-2018-00347 AboutPDF ToolsExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract EFSA was requested to provide recommendations to the European Commission on the sampling strategies and established microbiological methods most appropriate for maximising the sensitivity of detection of L. monocytogenes in processing water and the environment of premises producing frozen fruits, vegetables or herbs (FVH) as well as on the final food produced; and on the identification of critical sampling sites (CSSs) for environmental monitoring of L. monocytogenes. Seven steps are defined for a fit-for-purpose sampling strategy which is expected to support competent authorities and food business operators in foodborne outbreak investigations where frozen FVH are implicated. The relevant CSSs can be defined based upon critical inspection inside a freezing plant and the background information described in this report. Typical non-food contact surfaces where L. monocytogenes can harbour in a freezing plant include: floors, especially cracks and crevices, walls, drains, ceilings, overhead structures, catwalks, wash areas, condensate and standing water, wet insulation in walls and around pipes and cooling units, rubber seals around doors, especially in coolers, metal joints, specially welds and bolts and contents of vacuum cleaners. L. monocytogenes is also commonly found on equipment used for food processing, preparation, storage, and transportation such as freezing tunnels, castings bowls, blade spinner, slicers, knives, cutting boards, conveyor belts, gloves joints, gaskets and dead ends. A concerted effort should be made to plan the sampling around production batches and environmental CSSs. Sampling procedures should be performed as exhaustively as possible covering the largest number of CSSs and samples per CSS to gain insight into the potential variability of the contamination sources. 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