Occurrence of Listeria monocytogenes in Salami Manufactured in the Marche Region (Central Italy)

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The aim of the present study was to investigate the occurrence of Listeria monocytogenes in salami samples collected from production plants of the Marche Region, and to assess the end-product acceptability based on the former Italian regulations and European Commission (EC) Regulation N° 2073/2005. Based on the limits specified in the former Italian regulations, the percentage of non-acceptable samples was 34.3%, whereas based on the limits specified in EC Regulation N° 2073/2005, a lower percentage (17.1%) was seen. A similar trend was seen also when only the Ciauscolo salami were considered, with 45.2 and 27.4% of non-acceptable samples, respectively. No correlations were identified between occurrence of L. monocytogenes and the main parameters or the manufacturing processes.