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Mancini ME, Beverelli M, Donatiello A, Didonna A, Dattoli L, Faleo S, Occhiochiuso G, Galante D, Rondinone V, Del Sambro L, Bianco A, Miccolupo A, Goffredo E. Isolation and characterization of Yersinia enterocolitica from foods in Apulia and Basilicata regions (Italy) by conventional and modern methods. PLoS One 2022; 17:e0268706. [PMID: 35830422 PMCID: PMC9278756 DOI: 10.1371/journal.pone.0268706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 05/05/2022] [Indexed: 12/03/2022] Open
Abstract
Yersiniosis is the third most reported food-borne zoonosis in Europe. The aim of the present study was to perform the search for Yersinia enterocolitica in food samples collected from Apulia and Basilicata regions (Southern Italy) and to characterize any isolates by classical and modern analytical methods. A total of 130 samples were analyzed between July 2018 and July 2019: most of them were raw milk and dairy products made from it. Furthermore, 8 out of 130 samples were individual milk samples collected from bovines reared in a Brucella-free farm which showed false positive serological reaction for brucellosis due to the presence of pathogenic Y. enterocolitica O:9 biotype 2 in faeces. The Real Time PCR targeting the ail gene and the culture method were performed to detect pathogenic Y. enterocolitica. Isolates were subjected to API 20E (Biomerieux) and MALDI-TOF MS (Matrix Assisted Laser Desorption Ionization Time-of-Flight) for species identification. All samples were negative for the ail gene. The culture method allowed to isolate suspicious colonies from 28 samples. The API 20E system and the MALDI-TOF MS technique identified 20 Y. enterocolitica and 1 Y. intermedia in a concordant way. The remaining 7 strains were all identified as Y. enterocolitica by the API 20E system, while the MALDI-TOF MS recognized 4 Y. intermedia, 1 Y. bercovieri and 2 Y. massiliensis. Genotypic characterization of the discordant strains was performed by rMLST and it confirmed the MALDI-TOF MS’ results. Only non-pathogenic Y. enterocolitica biotype 1A strains were found, although with a non-negligible prevalence (P = 0.15 with CI 95% = ± 0.06). This study indicates a poor circulation of pathogenic Y. enterocolitica in food products made and marketed in the investigated areas. However, the small number of samples, insufficient for some food categories such as meat and vegetable, does not allow to exclude the presence of pathogenic strains at all.
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Affiliation(s)
- Maria Emanuela Mancini
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
- * E-mail:
| | - Matteo Beverelli
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Adelia Donatiello
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Antonella Didonna
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Luigi Dattoli
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Simona Faleo
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Gilda Occhiochiuso
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Domenico Galante
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Valeria Rondinone
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Laura Del Sambro
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Angelica Bianco
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Angela Miccolupo
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Elisa Goffredo
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
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Di Cerbo A, Miraglia D, Marino L, Stocchi R, Loschi AR, Fisichella S, Cammertoni N, Menchetti L, Farneti S, Ranucci D, Branciari R, Rea S. "Burrata di Andria" PGI Cheese: Physicochemical and Microbiological Features. Foods 2020; 9:foods9111694. [PMID: 33228027 PMCID: PMC7699421 DOI: 10.3390/foods9111694] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/11/2020] [Accepted: 11/16/2020] [Indexed: 01/24/2023] Open
Abstract
In the last century, the exponential increase of industrial food production led to the disappearance of "Italian traditional niche products". However, national regulations allowed the preservation of several of these products, including the burrata cheese. Twenty-one samples from three different batches of "Burrata di Andria" Protected Geographical Indication (PGI) were purchased from dairy factories of the PGI consortium. Moisture value of PGI Burrata cheese was significantly higher than that before the PGI release. Moreover, a significantly lower NaCl value was detected in PGI raw milk Burrata cheeses with respect to non-PGI ones, while an opposite situation was detected in pasteurized milk Burrata cheeses. As for pH, in all PGI products lower values were observed with respect to non-PGI products, which resulted significant only in pasteurized ones. No Salmonella spp., Listeria monocytogenes, and Bacillus cereus were detected, while nine samples were positive for a nonpathogenic strain of Yersinia enterocolitica. Total viable count (TVC) and Escherichia coli resulted significantly lower in pasteurized than in raw milk PGI Burrata cheese samples. Although samples analyzed can be considered microbiologically safe, these were borderline and/or unsatisfactory for E. Coli and coagulase-positive staphylococci (CPS) according to process hygiene criteria established by European regulation. Therefore, different strategies should be adopted to improve products hygiene in the considered dairy factories.
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Affiliation(s)
- Alessandro Di Cerbo
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, Italy; (R.S.); (A.R.L.); (N.C.); (S.R.)
- Correspondence: ; Tel.: +390737403443
| | - Dino Miraglia
- Experimental Zooprophylactic Institute of Umbria and Marche ‘T. Rosati’, 06126 Perugia, Italy; (D.M.); (S.F.)
| | - Leonardo Marino
- Experimental Zooprophylactic Institute of Puglia and Basilicata, 71121 Foggia, Italy;
| | - Roberta Stocchi
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, Italy; (R.S.); (A.R.L.); (N.C.); (S.R.)
| | - Anna Rita Loschi
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, Italy; (R.S.); (A.R.L.); (N.C.); (S.R.)
| | - Stefano Fisichella
- Department of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy; (S.F.); (L.M.); (D.R.); (R.B.)
| | - Natalina Cammertoni
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, Italy; (R.S.); (A.R.L.); (N.C.); (S.R.)
| | - Laura Menchetti
- Department of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy; (S.F.); (L.M.); (D.R.); (R.B.)
| | - Silvana Farneti
- Experimental Zooprophylactic Institute of Umbria and Marche ‘T. Rosati’, 06126 Perugia, Italy; (D.M.); (S.F.)
| | - David Ranucci
- Department of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy; (S.F.); (L.M.); (D.R.); (R.B.)
| | - Raffaella Branciari
- Department of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy; (S.F.); (L.M.); (D.R.); (R.B.)
| | - Stefano Rea
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, Italy; (R.S.); (A.R.L.); (N.C.); (S.R.)
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Fusco V, Chieffi D, Fanelli F, Logrieco AF, Cho G, Kabisch J, Böhnlein C, Franz CMAP. Microbial quality and safety of milk and milk products in the 21st century. Compr Rev Food Sci Food Saf 2020; 19:2013-2049. [DOI: 10.1111/1541-4337.12568] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/03/2020] [Accepted: 04/03/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Vincenzina Fusco
- Institute of Sciences of Food Production National Research Council of Italy (CNR‐ISPA) Bari Italy
| | - Daniele Chieffi
- Institute of Sciences of Food Production National Research Council of Italy (CNR‐ISPA) Bari Italy
| | - Francesca Fanelli
- Institute of Sciences of Food Production National Research Council of Italy (CNR‐ISPA) Bari Italy
| | - Antonio F. Logrieco
- Institute of Sciences of Food Production National Research Council of Italy (CNR‐ISPA) Bari Italy
| | - Gyu‐Sung Cho
- Department of Microbiology and BiotechnologyMax‐Rubner Institut Kiel Germany
| | - Jan Kabisch
- Department of Microbiology and BiotechnologyMax‐Rubner Institut Kiel Germany
| | - Christina Böhnlein
- Department of Microbiology and BiotechnologyMax‐Rubner Institut Kiel Germany
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