Control of the Growth of <i>Listeria monocytogenes</i> in Cooked Ham through Combinations of Natural Ingredients

In the ready-to-eat food industry, <i>Listeria</i> control is mandatory to ensure the food safety of the products since its presence could cause a disease called listeriosis. The objective of the present study was to carry out a challenge test to verify the efficiency of different combin...

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Main Authors: Gema Nieto, Rocío Peñalver, Carmen Ortuño, Juan D. Hernández, Isidro Guillén
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/12/18/3416
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author Gema Nieto
Rocío Peñalver
Carmen Ortuño
Juan D. Hernández
Isidro Guillén
author_facet Gema Nieto
Rocío Peñalver
Carmen Ortuño
Juan D. Hernández
Isidro Guillén
author_sort Gema Nieto
collection DOAJ
description In the ready-to-eat food industry, <i>Listeria</i> control is mandatory to ensure the food safety of the products since its presence could cause a disease called listeriosis. The objective of the present study was to carry out a challenge test to verify the efficiency of different combinations of natural antimicrobial ingredients against <i>Listeria monocytogenes</i> to be used in ready-to-eat foods. Six different formulations of cooked ham were prepared: a control formulation and five different formulations. An initial inoculation of 2 log cycles was used in the different products, and the growth of <i>Listeria</i> was monitored at different temperatures and times (4 °C for 17 w and 7 °C for 12 w). Control samples showed a progressive growth, reaching 5–6 log after 3 or 4 weeks. The rest of the samples showed constant counts of <i>Listeria</i> during the entire study. Only samples containing 100 ppm nitrite + 250 PPM ascorbic acid + 0.7% PRS-DV-5 did not control the growth of <i>Listeria</i> at 7 °C after 7 w of storage. The results obtained allowed us to classify the cooked ham prepared using natural ingredient combinations as a “Ready-to-eat food unable to support the growth of <i>L. monocytogenes</i> other than those intended for infants and for special medical purposes”.
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spelling doaj.art-547f534a85934b2d80f837c8774831702023-11-19T10:42:48ZengMDPI AGFoods2304-81582023-09-011218341610.3390/foods12183416Control of the Growth of <i>Listeria monocytogenes</i> in Cooked Ham through Combinations of Natural IngredientsGema Nieto0Rocío Peñalver1Carmen Ortuño2Juan D. Hernández3Isidro Guillén4Department of Food Technology, Nutrition and Food Science, Veterinary Faculty, University of Murcia, Regional Campus of International Excellence “Campus Mare Nostrum”, Campus de Espinardo, 30100 Murcia, SpainDepartment of Food Technology, Nutrition and Food Science, Veterinary Faculty, University of Murcia, Regional Campus of International Excellence “Campus Mare Nostrum”, Campus de Espinardo, 30100 Murcia, SpainCathedra Biotechnology PROSUR, Regional Campus of International Excellence “Campus Mare Nostrum”, Campus de Espinardo, 30100 Murcia, SpainCathedra Biotechnology PROSUR, Regional Campus of International Excellence “Campus Mare Nostrum”, Campus de Espinardo, 30100 Murcia, SpainCathedra Biotechnology PROSUR, Regional Campus of International Excellence “Campus Mare Nostrum”, Campus de Espinardo, 30100 Murcia, SpainIn the ready-to-eat food industry, <i>Listeria</i> control is mandatory to ensure the food safety of the products since its presence could cause a disease called listeriosis. The objective of the present study was to carry out a challenge test to verify the efficiency of different combinations of natural antimicrobial ingredients against <i>Listeria monocytogenes</i> to be used in ready-to-eat foods. Six different formulations of cooked ham were prepared: a control formulation and five different formulations. An initial inoculation of 2 log cycles was used in the different products, and the growth of <i>Listeria</i> was monitored at different temperatures and times (4 °C for 17 w and 7 °C for 12 w). Control samples showed a progressive growth, reaching 5–6 log after 3 or 4 weeks. The rest of the samples showed constant counts of <i>Listeria</i> during the entire study. Only samples containing 100 ppm nitrite + 250 PPM ascorbic acid + 0.7% PRS-DV-5 did not control the growth of <i>Listeria</i> at 7 °C after 7 w of storage. The results obtained allowed us to classify the cooked ham prepared using natural ingredient combinations as a “Ready-to-eat food unable to support the growth of <i>L. monocytogenes</i> other than those intended for infants and for special medical purposes”.https://www.mdpi.com/2304-8158/12/18/3416challenge test<i>Listeria monocytogenes</i>natural ingredients combinationsfood safety
spellingShingle Gema Nieto
Rocío Peñalver
Carmen Ortuño
Juan D. Hernández
Isidro Guillén
Control of the Growth of <i>Listeria monocytogenes</i> in Cooked Ham through Combinations of Natural Ingredients
Foods
challenge test
<i>Listeria monocytogenes</i>
natural ingredients combinations
food safety
title Control of the Growth of <i>Listeria monocytogenes</i> in Cooked Ham through Combinations of Natural Ingredients
title_full Control of the Growth of <i>Listeria monocytogenes</i> in Cooked Ham through Combinations of Natural Ingredients
title_fullStr Control of the Growth of <i>Listeria monocytogenes</i> in Cooked Ham through Combinations of Natural Ingredients
title_full_unstemmed Control of the Growth of <i>Listeria monocytogenes</i> in Cooked Ham through Combinations of Natural Ingredients
title_short Control of the Growth of <i>Listeria monocytogenes</i> in Cooked Ham through Combinations of Natural Ingredients
title_sort control of the growth of i listeria monocytogenes i in cooked ham through combinations of natural ingredients
topic challenge test
<i>Listeria monocytogenes</i>
natural ingredients combinations
food safety
url https://www.mdpi.com/2304-8158/12/18/3416
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AT carmenortuno controlofthegrowthofilisteriamonocytogenesiincookedhamthroughcombinationsofnaturalingredients
AT juandhernandez controlofthegrowthofilisteriamonocytogenesiincookedhamthroughcombinationsofnaturalingredients
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