Definition of a standard protocol to determine the growth potential of Listeria monocytogenes and Yersinia enterocolitica in pork sausage produced in Abruzzo Region, Italy

Submitted: 16 July 2014
Accepted: 8 July 2015
Published: 2 November 2015
Abstract Views: 1738
PDF: 1032
HTML: 1022
Publisher's note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.

Authors

Pork meat products consumed raw or after a short period of fermentation can be considered at risk for food safety. Sausages (fresh sausage made from pork meat) are produced in several Italian regions, with variation in ingredients. In some Italian Regions, including Abruzzo, these products are frequently consumed raw or undercooked, after a variable period of fermentation. The European Community food regulation promotes the use of challenge tests to determine safety levels. This study is aimed to ensure safety of Abruzzo’s sausages, compared with growth potential (δ) of Listeria monocytogenes and Yersinia enterocolitica, and also aims to define an experimental standard protocol document to carry out challenge tests. Guidelines classify ready-to-eat foods in categories that are able to support (δ>0.5 log10 ufc/g) and not support (δ≤0.5 log10 ufc/g) the growth of Listeria monocytogenes. The products were manufactured according to traditional recipes and were contaminated in laboratory. Results from the experiment yielded information useful to assess the ability of these products to support the growth of pathogenic microorganisms. The batches of sausages were stored at 8, 12, 18 and 20°C to get statistical evaluation. The results showed that, despite the conditioning of the storage temperature and the level of water activity, both organisms remain in the product in concentrations similar to those leading or being able to increase its charge. In particular, the period of greatest consumption of this product (7/8 days of preparation) corresponds to the period of greatest growth of pathogenic microorganisms studied, except for those stored at a temperature of 8°C, which are safer for the consumer.

Dimensions

Altmetric

PlumX Metrics

Downloads

Download data is not yet available.

Citations

How to Cite

1.
Sperandii AF, Neri D, Romantini R, Santarelli GA, Prencipe V. Definition of a standard protocol to determine the growth potential of Listeria monocytogenes and Yersinia enterocolitica in pork sausage produced in Abruzzo Region, Italy. Ital J Food Safety [Internet]. 2015 Nov. 2 [cited 2024 Jul. 13];4(4). Available from: https://www.pagepressjournals.org/ijfs/article/view/ijfs.2015.4575