Plant Extracts for the Control of <i>Listeria monocytogenes</i> in Meat Products
The antimicrobial activity of garlic (<i>Allium sativum</i> L.) and onion (<i>Allium cepa</i> L.) plant active extracts was determined against <i>Listeria monocytogenes</i> in two meat products. Samples of sausages “cacciatore” and cooked ham in vacuum-packaged sl...
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MDPI AG
2021-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/22/10820 |
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| author | Simona de Niederhäusern Moreno Bondi Stefania Camellini Carla Sabia Patrizia Messi Ramona Iseppi |
| author_facet | Simona de Niederhäusern Moreno Bondi Stefania Camellini Carla Sabia Patrizia Messi Ramona Iseppi |
| author_sort | Simona de Niederhäusern |
| collection | DOAJ |
| description | The antimicrobial activity of garlic (<i>Allium sativum</i> L.) and onion (<i>Allium cepa</i> L.) plant active extracts was determined against <i>Listeria monocytogenes</i> in two meat products. Samples of sausages “cacciatore” and cooked ham in vacuum-packaged slices were artificially contaminated, and the presence of <i>Listeria</i> was evaluated during the sausages ripening and throughout the shelf-life of the cooked ham. The test carried out on sausages did not show differences among treated and untreated samples. The antagonistic activity of the plant extracts against the pathogen was probably hidden by the competition from the sausages microbial flora and the pH and the water activity (aw) decrease. On the other hand, the plant extracts determined an initial reduction of about 1.00 log cfu/g of the <i>L. monocytogenes</i> viable count in the cooked ham slices contaminated with 10<sup>3</sup> cfu/g, but the best result was obtained with the contamination of 10<sup>2</sup> cfu/g of <i>L. monocytogenes</i>. In addition to the pathogen’s initial decrease, we observed an extension of the lag phase and a reduction of the <i>Listeria</i> growth rate. Considering that the presence of <i>L. monocytogenes</i> during the slicing phase of the cooked ham does not exceed 10 cfu/g, the use of plant extracts can lead to complete pathogen elimination. |
| first_indexed | 2024-03-10T05:44:37Z |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T05:44:37Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-e0fdee40ef284cb0abab3058b9ac3b7f2023-11-22T22:19:24ZengMDPI AGApplied Sciences2076-34172021-11-0111221082010.3390/app112210820Plant Extracts for the Control of <i>Listeria monocytogenes</i> in Meat ProductsSimona de Niederhäusern0Moreno Bondi1Stefania Camellini2Carla Sabia3Patrizia Messi4Ramona Iseppi5Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 287, 41125 Modena, ItalyDepartment of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 287, 41125 Modena, ItalyDepartment of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 287, 41125 Modena, ItalyDepartment of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 287, 41125 Modena, ItalyDepartment of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 287, 41125 Modena, ItalyDepartment of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 287, 41125 Modena, ItalyThe antimicrobial activity of garlic (<i>Allium sativum</i> L.) and onion (<i>Allium cepa</i> L.) plant active extracts was determined against <i>Listeria monocytogenes</i> in two meat products. Samples of sausages “cacciatore” and cooked ham in vacuum-packaged slices were artificially contaminated, and the presence of <i>Listeria</i> was evaluated during the sausages ripening and throughout the shelf-life of the cooked ham. The test carried out on sausages did not show differences among treated and untreated samples. The antagonistic activity of the plant extracts against the pathogen was probably hidden by the competition from the sausages microbial flora and the pH and the water activity (aw) decrease. On the other hand, the plant extracts determined an initial reduction of about 1.00 log cfu/g of the <i>L. monocytogenes</i> viable count in the cooked ham slices contaminated with 10<sup>3</sup> cfu/g, but the best result was obtained with the contamination of 10<sup>2</sup> cfu/g of <i>L. monocytogenes</i>. In addition to the pathogen’s initial decrease, we observed an extension of the lag phase and a reduction of the <i>Listeria</i> growth rate. Considering that the presence of <i>L. monocytogenes</i> during the slicing phase of the cooked ham does not exceed 10 cfu/g, the use of plant extracts can lead to complete pathogen elimination.https://www.mdpi.com/2076-3417/11/22/10820plant extractsantimicrobial activitysausagescooked ham<i>Listeria monocytogenes</i> |
| spellingShingle | Simona de Niederhäusern Moreno Bondi Stefania Camellini Carla Sabia Patrizia Messi Ramona Iseppi Plant Extracts for the Control of <i>Listeria monocytogenes</i> in Meat Products Applied Sciences plant extracts antimicrobial activity sausages cooked ham <i>Listeria monocytogenes</i> |
| title | Plant Extracts for the Control of <i>Listeria monocytogenes</i> in Meat Products |
| title_full | Plant Extracts for the Control of <i>Listeria monocytogenes</i> in Meat Products |
| title_fullStr | Plant Extracts for the Control of <i>Listeria monocytogenes</i> in Meat Products |
| title_full_unstemmed | Plant Extracts for the Control of <i>Listeria monocytogenes</i> in Meat Products |
| title_short | Plant Extracts for the Control of <i>Listeria monocytogenes</i> in Meat Products |
| title_sort | plant extracts for the control of i listeria monocytogenes i in meat products |
| topic | plant extracts antimicrobial activity sausages cooked ham <i>Listeria monocytogenes</i> |
| url | https://www.mdpi.com/2076-3417/11/22/10820 |
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