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Rajalingam N, Choi SY, Van Haute S. Ultra violet-C pretreatment enhances the antimicrobial efficacy of unpeeled carrots against subsequent contamination with Listeria monocytogenes. Int J Food Microbiol 2024; 421:110800. [PMID: 38878705 DOI: 10.1016/j.ijfoodmicro.2024.110800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 06/05/2024] [Accepted: 06/11/2024] [Indexed: 07/06/2024]
Abstract
To our knowledge, this study is the first to elucidate the bactericidal efficacy of unpeeled carrots (hereafter referred to as carrots) pretreated with Ultra Violet-C (UV-C) against subsequent contamination with Listeria monocytogenes. Carrots pretreated with UV-C (240 mJ/cm2) exhibited a significant antilisterial effect within 2 h. In fact, the population of UV-C-pretreated carrots decreased from 7.94 log CFU/cm2 to levels below the limit of detection (LOD; <1.65 log CFU/cm2) within 24 h. For carrots that were not pretreated with UV-C, 3-4 log reductions were found after 24 h. Carrots pretreated with UV-C exhibited antimicrobial activity against another gram-positive pathogen, Staphylococcus aureus, but not against the gram-negative pathogens, E. coli O157:H7 and Salmonella enterica. Pretreatment with UV-C created a lasting antimicrobial effect as introducing L. monocytogenes on carrots, 72 h post-UV-C treatment, still maintained the antilisterial effect. Notably, all UV-C doses in the range of 48-240 mJ/cm2 induced a lasting antilisterial effect. The bactericidal effects against L. monocytogenes were confirmed in three varieties of washed and unwashed carrots (Danvers, Nantes, and Chantenay). Fluorescence microscopy confirmed the bactericidal effect of UV-C-pretreated carrots on the survival of L. monocytogenes. Conclusively, pretreating carrots with UV-C can reduce the population of L. monocytogenes to levels below the LOD and may further prevent pathogen growth during cold storage. Additional studies are necessary to discern the mechanism underlying the bactericidal efficacy of UV-C-pretreated carrots.
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Affiliation(s)
- Nagendran Rajalingam
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium; Center for Food Biotechnology and Microbiology, Ghent University Global Campus, Incheon 21985, Republic of Korea; Microbial Safety Team, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Song-Yi Choi
- Microbial Safety Team, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Republic of Korea.
| | - Sam Van Haute
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium; Center for Food Biotechnology and Microbiology, Ghent University Global Campus, Incheon 21985, Republic of Korea.
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2
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Bolten S, Ralyea RD, Lott TT, Orsi RH, Martin NH, Wiedmann M, Trmcic A. Utilizing whole genome sequencing to characterize Listeria spp. persistence and transmission patterns in a farmstead dairy processing facility and its associated farm environment. J Dairy Sci 2024:S0022-0302(24)00995-0. [PMID: 39004131 DOI: 10.3168/jds.2024-24789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 06/14/2024] [Indexed: 07/16/2024]
Abstract
Farmstead dairy processing facilities may be particularly susceptible to Listeria spp. contamination due to the close physical proximity of their processing environments (PE) to associated dairy farm environments (FE). In this case study, we supported the implementation of interventions focused on improving (i) cleaning and sanitation efficacy, (ii) hygienic zoning, and (iii) sanitary equipment/facility design and maintenance in a farmstead dairy processing facility, and evaluated their impact on Listeria spp. detection in the farmstead's PE over 1 year. Detection of Listeria spp. in the farmstead's PE was numerically reduced from 50% to 7.5% after 1 year of intervention implementation, suggesting that these interventions were effective at improving Listeria spp. control. In addition, environmental samples were also collected from the farmstead's FE to evaluate the risk of the FE as a potential source of Listeria spp. in the PE. Overall, detection of Listeria spp. was higher in samples collected from the FE (75%, 27/36) compared with samples collected from the PE (24%, 29/120). Whole genome sequencing (WGS) performed on select isolates collected from the PE and FE supported the identification of 6 clusters (range of 3 to 15 isolates per cluster) that showed ≤ 50 high quality single nucleotide polymorphism (hqSNP) differences. Of these 6 clusters, 3 (i.e., clusters 2, 4, and 5) contained isolates that were collected from both the PE and FE, suggesting that transmission between these 2 environments was likely. Moreover, all cluster 2 isolates represented a clonal complex (CC) of L. monocytogenes commonly associated with dairy farm environmental reservoirs (i.e., CC666), which may support that the farmstead's FE represented an upstream source of the cluster 2 isolates that were found in the PE. Overall, our data underscore that, while the FE can represent a potential upstream source of Listeria spp. contamination in a farmstead dairy processing facility, implementation of targeted interventions can help effectively minimize Listeria spp. contamination in the PE.
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Affiliation(s)
- Samantha Bolten
- Milk Quality Improvement Program, Department of Food Science, Cornell University, Ithaca, NY, 14853; Food Safety Laboratory, Department of Food Science, Cornell University, Ithaca, NY, 14853
| | - Robert D Ralyea
- Milk Quality Improvement Program, Department of Food Science, Cornell University, Ithaca, NY, 14853
| | - Timothy T Lott
- Milk Quality Improvement Program, Department of Food Science, Cornell University, Ithaca, NY, 14853
| | - Renato H Orsi
- Food Safety Laboratory, Department of Food Science, Cornell University, Ithaca, NY, 14853
| | - Nicole H Martin
- Milk Quality Improvement Program, Department of Food Science, Cornell University, Ithaca, NY, 14853
| | - Martin Wiedmann
- Food Safety Laboratory, Department of Food Science, Cornell University, Ithaca, NY, 14853
| | - Aljosa Trmcic
- Milk Quality Improvement Program, Department of Food Science, Cornell University, Ithaca, NY, 14853.
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3
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Bolten S, Lott TT, Ralyea RD, Gianforte A, Trmcic A, Orsi RH, Martin NH, Wiedmann M. Intensive Environmental Sampling and Whole Genome Sequence-based Characterization of Listeria in Small- and Medium-sized Dairy Facilities Reveal Opportunities for Simplified and Size-appropriate Environmental Monitoring Strategies. J Food Prot 2024; 87:100254. [PMID: 38417482 DOI: 10.1016/j.jfp.2024.100254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/17/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
Small- and medium-sized dairy processing facilities (SMDFs) may face unique challenges with respect to controlling Listeria in their processing environments, e.g., due to limited resources. The aim of this study was to implement and evaluate environmental monitoring programs (EMPs) for Listeria control in eight SMDFs in a ∼1-year longitudinal study; this included a comparison of pre-operation (i.e., after cleaning and sanitation and prior to production) and mid-operation (i.e., at least 4 h into production) sampling strategies. Among 2,072 environmental sponge samples collected across all facilities, 272 (13%) were positive for Listeria. Listeria prevalence among pre- and mid-operation samples (15% and 17%, respectively), was not significantly different. Whole genome sequencing (WGS) performed on select isolates to characterize Listeria persistence patterns revealed repeated isolation of closely related Listeria isolates (i.e., ≤20 high-quality single nucleotide polymorphism [hqSNP] differences) in 5/8 facilities over >6 months, suggesting Listeria persistence and/or reintroduction was relatively common among the SMDFs evaluated here. WGS furthermore showed that for 41 sites where samples collected pre- and mid-operation were positive for Listeria, Listeria isolates obtained were highly related (i.e., ≤10 hqSNP differences), suggesting that pre-operation sampling alone may be sufficient and more effective for detecting sites of Listeria persistence. Importantly, our data also showed that only 1/8 of facilities showed a significant decrease in Listeria prevalence over 1 year, indicating continued challenges with Listeria control in at least some SMDFs. We conclude that options for simplified Listeria EMPs (e.g., with a focus on pre-operation sampling, which allows for more rapid identification of likely persistence sites) may be valuable for improved Listeria control in SMDFs.
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Affiliation(s)
- Samantha Bolten
- Milk Quality Improvement Program, Department of Food Science, Cornell University, Ithaca, NY 14853, USA; Food Safety Laboratory, Department of Food Science, Cornell University, Ithaca, NY 14853, USA
| | - Timothy T Lott
- Milk Quality Improvement Program, Department of Food Science, Cornell University, Ithaca, NY 14853, USA
| | - Robert D Ralyea
- Milk Quality Improvement Program, Department of Food Science, Cornell University, Ithaca, NY 14853, USA
| | - Anika Gianforte
- Milk Quality Improvement Program, Department of Food Science, Cornell University, Ithaca, NY 14853, USA
| | - Aljosa Trmcic
- Milk Quality Improvement Program, Department of Food Science, Cornell University, Ithaca, NY 14853, USA
| | - Renato H Orsi
- Food Safety Laboratory, Department of Food Science, Cornell University, Ithaca, NY 14853, USA
| | - Nicole H Martin
- Milk Quality Improvement Program, Department of Food Science, Cornell University, Ithaca, NY 14853, USA
| | - Martin Wiedmann
- Food Safety Laboratory, Department of Food Science, Cornell University, Ithaca, NY 14853, USA.
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4
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Grigore-Gurgu L, Bucur FI, Mihalache OA, Nicolau AI. Comprehensive Review on the Biocontrol of Listeria monocytogenes in Food Products. Foods 2024; 13:734. [PMID: 38472848 DOI: 10.3390/foods13050734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/21/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
Listeria monocytogenes is a foodborne pathogen that causes listeriosis, a group of human illnesses that appear more frequently in countries with better-developed food supply systems. This review discusses the efficacy of actual biocontrol methods combined with the main types of food involved in illnesses. Comments on bacteriophages, lactic acid bacteria, bacteriocins, essential oils, and endolysins and derivatives, as main biological antilisterial agents, are made bearing in mind that, using them, food processors can intervene to protect consumers. Both commercially available antilisterial products and solutions presented in scientific papers for mitigating the risk of contamination are emphasized. Potential combinations between different types of antilisterial agents are highlighted for their synergic effects (bacteriocins and essential oils, phages and bacteriocins, lactic acid bacteria with natural or synthetic preservatives, etc.). The possibility to use various antilisterial biological agents in active packaging is also presented to reveal the diversity of means that food processors may adopt to assure the safety of their products. Integrating biocontrol solutions into food processing practices can proactively prevent outbreaks and reduce the occurrences of L. monocytogenes-related illnesses.
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Affiliation(s)
- Leontina Grigore-Gurgu
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008 Galati, Romania
| | - Florentina Ionela Bucur
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008 Galati, Romania
| | - Octavian Augustin Mihalache
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008 Galati, Romania
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Anca Ioana Nicolau
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008 Galati, Romania
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5
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Gana J, Gcebe N, Moerane R, Ngoshe YB, Tshuma T, Moabelo K, Adesiyun AA. A comparative study on the occurrence, genetic characteristics, and factors associated with the distribution of Listeria species on cattle farms and beef abattoirs in Gauteng Province, South Africa. Trop Anim Health Prod 2024; 56:88. [PMID: 38409615 PMCID: PMC10896870 DOI: 10.1007/s11250-024-03934-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 02/15/2024] [Indexed: 02/28/2024]
Abstract
These cross-sectional studies reported the occurrence, genetic characteristics, and factors associated with the distribution of Listeria species on cattle farms and beef abattoirs in Gauteng Province, South Africa. A total of 328 samples (faeces, feeds, silage, and drinking water) were collected from 23 cattle farms (communal, cow-calf, and feedlot), and 262 samples (faeces, carcass swabs, and effluents) from 8 beef abattoirs (low throughput and high throughput) were processed using standard bacteriological and molecular methods to detect Listeria species. The factors associated with the prevalence of Listeria species were investigated, and multiplex polymerase chain reaction (mPCR) was used to determine Listeria species, the pathogenic serogroups, and the carriage of eight virulence-associated genes by Listeria monocytogenes. The overall prevalence of Listeria species in cattle farms was 14.6%, comprising Listeria innocua (11.3%), Listeria monocytogenes (3.4%), Listeria welshimeri (0.0%) compared with 11.1%, comprising Listeria innocua (5.7%), Listeria monocytogenes (4.6%), Listeria welshimeri (0.8%) for beef abattoirs. Of the three variables (area, type of farm/abattoir, and sample type) investigated, only the sample types at abattoirs had a significant (P < 0.001) effect on the prevalence of L. innocua and L. welshimeri. The frequency of distribution of the serogroups based on 11 L. monocytogenes isolated from farms was 72.7% and 27.3% for the serogroup 1/2a-3a and 4b-4d-4e, respectively, while for the 12 L. monocytogenes isolates recovered from abattoirs, it was 25%, 8.3%, 50% and 16.7% for the serogroup 1/2a-3a, 1/2b-3b, 1/2c-3c, and 4b-4d-4e respectively (P < 0.05). All (100%) isolates of L. monocytogenes from the farms and abattoirs were positive for seven virulence genes (hlyA, inlB, plcA, iap, inlA, inlC, and inlJ). The clinical and food safety significance of the findings cannot be ignored.
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Affiliation(s)
- J Gana
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria, 0110, South Africa
- Department of Agricultural Education, Federal College of Education, P.M.B. 39, Kontagora, Niger State, Nigeria
| | - N Gcebe
- Bacteriology Department, Onderstepoort Veterinary Research, Agricultural Research Council, Pretoria, South Africa
| | - R Moerane
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria, 0110, South Africa
| | - Y B Ngoshe
- Epidemiology Section, Department of Production Animal Studies, Epidemiology Section, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria, 0110, South Africa
| | - T Tshuma
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria, 0110, South Africa
| | - K Moabelo
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria, 0110, South Africa
| | - A A Adesiyun
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria, 0110, South Africa.
- Department of Paraclinical Sciences, School of Veterinary Medicine, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago.
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6
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Angelidis AS, Grammenou AS, Kotzamanidis C, Giadinis ND, Zdragas AG, Sergelidis D. Prevalence, Serotypes, Antimicrobial Resistance and Biofilm-Forming Ability of Listeria monocytogenes Isolated from Bulk-Tank Bovine Milk in Northern Greece. Pathogens 2023; 12:837. [PMID: 37375527 DOI: 10.3390/pathogens12060837] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/12/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
The prevalence of Listeria monocytogenes in bovine bulk-tank milk (BTM) in Greece has not been previously investigated. The aim of the study was to estimate the prevalence of L. monocytogenes in bovine BTM in Greece and to characterize the isolates in terms of carriage of genes encoding for pathogenic determinants, assess the isolates' biofilm-forming ability and determine their susceptibility against 12 antimicrobials. Samples (n = 138) of bovine BTM were obtained from farms located throughout Northern Greece and were analyzed qualitatively and quantitatively for L. monocytogenes. Five samples (3.6%) tested positive for L. monocytogenes. The pathogen's populations in these positive samples were below 5 CFU/mL. Most isolates belonged to the molecular serogroup "1/2a, 3a". All isolates carried the virulence genes inlA, inlC, inlJ, iap, plcA and hlyA, but actA was detected in only three isolates. The isolates displayed weak to moderate biofilm-forming ability and distinct antimicrobial resistance profiles. All isolates were characterized as multidrug resistant, with resistance to penicillin and clindamycin being a common feature. Considering that L. monocytogenes constitutes a serious public health threat, the key findings of the study, related to the carriage of virulence genes and multidrug resistance, highlight the importance of continued monitoring of the pathogen in farm animals.
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Affiliation(s)
- Apostolos S Angelidis
- Laboratory of Safety and Quality of Milk and Dairy Products, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Afroditi S Grammenou
- Laboratory of Hygiene of Foods of Animal Origin-Veterinary Public Health, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Charalampos Kotzamanidis
- Hellenic Agricultural Organization-DIMITRA, Veterinary Research Institute of Thessaloniki, 57001 Thermi, Greece
| | - Nektarios D Giadinis
- Clinic of Farm Animals, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54627 Thessaloniki, Greece
| | - Antonios G Zdragas
- Hellenic Agricultural Organization-DIMITRA, Veterinary Research Institute of Thessaloniki, 57001 Thermi, Greece
| | - Daniel Sergelidis
- Laboratory of Hygiene of Foods of Animal Origin-Veterinary Public Health, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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7
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Minarovičová J, Adriana V, Zuzana K, Andrezál M, Hana D, Eva K. Tracing of persistent Listeria monocytogenes contamination in ewe's milk farm. Lett Appl Microbiol 2023; 76:6988184. [PMID: 36695431 DOI: 10.1093/lambio/ovad006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 12/05/2022] [Accepted: 01/13/2023] [Indexed: 01/18/2023]
Abstract
Ewe's milk farm production is permanently associated with the risk of contamination by pathogenic bacteria, including Listeria monocytogenes. In the present study, the prevalence and diversity of L. monocytogenes strains repeatedly isolated from tank ewe's milk and the milking environment on a farm in Slovakia during a prolonged period were investigated to identify the source of potentially persistent contamination. A total of 140 samples along the milk production chain were collected during an 18-month period. From all these samples, 45 samples were found L. monocytogenes positive with 90.3% positivity of tank milk samples (28 positive samples from 31 analysed). Pulsed-field gel electrophoresis profiling resulted in strain discrimination into six profiles with one pulsotype (NS1) corresponding to MLST-ST14 being predominant. A total of 17 proportionally selected L. monocytogenes isolates, including 11 NS1/ST14 isolates, were subjected to whole genome sequencing. Resulted data were used to compare the genomes diversity and to confirm the persistent contamination when <10 allelic differences threshold in cgMLST analysis was applied. The source of persistent contamination was localized inside the milking apparatus, probably in shelters that were very difficult to clean. Despite great efforts, the ewe's milk contamination could not be eliminated during the reporting period.
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Affiliation(s)
- Jana Minarovičová
- Food Research Institute, National Agricultural and Food Centre, Priemyselná 4, 82475 Bratislava, Slovakia
| | - Véghová Adriana
- Food Research Institute, National Agricultural and Food Centre, Priemyselná 4, 82475 Bratislava, Slovakia
| | - Kubicová Zuzana
- State Veterinary and Food Institute, Jánoškova 1611/58, 026 01 Dolný Kubín, Slovakia
| | - Michal Andrezál
- Faculty of Natural Sciences, Comenius University, Ilkovičova 6, Mlynská dolina, 84215 Bratislava 4, Slovakia
| | - Drahovská Hana
- Faculty of Natural Sciences, Comenius University, Ilkovičova 6, Mlynská dolina, 84215 Bratislava 4, Slovakia.,Science Park, Comenius University, Ilkovičova 6, 84215 Bratislava, Slovakia
| | - Kaclíková Eva
- Food Research Institute, National Agricultural and Food Centre, Priemyselná 4, 82475 Bratislava, Slovakia
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8
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Martín I, Córdoba JJ, Rodríguez A. Effect of acidic conditions on the growth and expression of two virulence genes of Listeria monocytogenes serotype 4b. Res Microbiol 2023; 174:104042. [PMID: 36740027 DOI: 10.1016/j.resmic.2023.104042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 01/10/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
In this work, the effect of the usual acidic conditions of dry-cured fermented foods (pH values between 4.5 and 6), on the growth and expression of the virulence genes, hly and inlA, of Listeria monocytogenes serotype 4b, was evaluated. To analyse the expression of the inlA gene, a novel real-time PCR (qPCR) method using SYBR® Green methodology was developed. L. monocytogenes levels increased as the pH did and they were kept constant throughout incubation time at pH 4.5. However, a significant increase in the relative expression of the virulence genes was detected in most of the acidic conditions in all the incubation times. The most pronounced upregulation of the relative expression of the virulence genes was found at pH 4.5. The efficient inlA-based qPCR method could be of interest to check changes in the expression of such virulence gene of this pathogenic bacterium in acidic environments.
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Affiliation(s)
- Irene Martín
- Higiene y Seguridad Alimentaria, Instituto Universitario de Investigación de Carne y Productos Cárnicos, Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias, s/n. 10003-Cáceres, Spain
| | - Juan J Córdoba
- Higiene y Seguridad Alimentaria, Instituto Universitario de Investigación de Carne y Productos Cárnicos, Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias, s/n. 10003-Cáceres, Spain
| | - Alicia Rodríguez
- Higiene y Seguridad Alimentaria, Instituto Universitario de Investigación de Carne y Productos Cárnicos, Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias, s/n. 10003-Cáceres, Spain.
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9
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Qiao Z, Zhang L, Wang X, Liu B, Shan Y, Yi Y, Zhou Y, Lü X. Antibiofilm Effects of Bacteriocin BMP32r on Listeria monocytogenes. Probiotics Antimicrob Proteins 2022; 14:1067-1076. [PMID: 34709598 DOI: 10.1007/s12602-021-09863-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2021] [Indexed: 12/25/2022]
Abstract
Listeria monocytogenes is a well-known foodborne pathogen that usually lives as biofilm to cope with unfavorable surroundings. Bacteriocins have been reported as antimicrobial compounds, and their bactericidal actions have been extensively studied, but their antibiofilm actions have rarely been studied. Previous study indicated that bacteriocin BMP32r has a broad-spectrum antibacterial activity. In this study, the efficacy of BMP32r against the planktonic bacteria, inhibition of forming biofilm, destruction of mature biofilm, and kill persisters of L. monocytogenes ATCC 15,313 was determined. BMP32r exhibited the bactericidal effect on L. monocytogenes planktonic bacteria. Crystal violet staining showed that sub-minimum inhibitory concentrations (SICs) of BMP32r (1/32 × MIC and 1/16 × MIC) significantly (p < 0.001) inhibit the biofilm formation. In addition, the results of CCK-8, plate count, ruthenium red staining, scanning electron microscopy, and real-time quantitative PCR assay showed that SICs of BMP32r reduced cell adhesion, exopolysaccharide production, quorum sensing, and virulence genes expression in biofilm formation. Moreover, higher concentrations of BMP32r (2 × MIC and 4 × MIC) disrupt the mature biofilm by killing the bacteria in the biofilm and kill L. monocytogenes persisters bacteria effectively. Therefore, BMP32r has promising potential as an antibiofilm agent to combat L. monocytogenes.
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Affiliation(s)
- Zhu Qiao
- College of Food Science and Engineering, Northwest Agricultural and Forestry University, No. 22 Xinong Road, Yangling District, Xianyang, 712100, Shaanxi, China.,School of Biological and Food Processing Engineering, Huanghuai University, Henan Province 463000, Zhumadian, China
| | - Leshan Zhang
- College of Food Science and Engineering, Northwest Agricultural and Forestry University, No. 22 Xinong Road, Yangling District, Xianyang, 712100, Shaanxi, China
| | - Xin Wang
- College of Food Science and Engineering, Northwest Agricultural and Forestry University, No. 22 Xinong Road, Yangling District, Xianyang, 712100, Shaanxi, China.
| | - Bianfang Liu
- College of Food Science and Engineering, Northwest Agricultural and Forestry University, No. 22 Xinong Road, Yangling District, Xianyang, 712100, Shaanxi, China
| | - Yuanyuan Shan
- College of Food Science and Engineering, Northwest Agricultural and Forestry University, No. 22 Xinong Road, Yangling District, Xianyang, 712100, Shaanxi, China
| | - Yanglei Yi
- College of Food Science and Engineering, Northwest Agricultural and Forestry University, No. 22 Xinong Road, Yangling District, Xianyang, 712100, Shaanxi, China
| | - Yuan Zhou
- College of Food Science and Engineering, Northwest Agricultural and Forestry University, No. 22 Xinong Road, Yangling District, Xianyang, 712100, Shaanxi, China
| | - Xin Lü
- College of Food Science and Engineering, Northwest Agricultural and Forestry University, No. 22 Xinong Road, Yangling District, Xianyang, 712100, Shaanxi, China.
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10
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Factors that predict Listeria prevalence in distribution centers handling fresh produce. Food Microbiol 2022; 107:104065. [DOI: 10.1016/j.fm.2022.104065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/25/2022] [Accepted: 05/30/2022] [Indexed: 11/23/2022]
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11
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Cossettini A, Vidic J, Maifreni M, Marino M, Pinamonti D, Manzano M. Rapid detection of Listeria monocytogenes, Salmonella, Campylobacter spp., and Escherichia coli in food using biosensors. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108962] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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12
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Listeria monocytogenes survives better at lower storage temperatures in regular and low-salt soft and cured cheeses. Food Microbiol 2022; 104:103979. [DOI: 10.1016/j.fm.2022.103979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 11/24/2022]
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13
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Selection and characterization of lactic acid bacteria with activity against Listeria monocytogenes from traditional RTE ripened foods. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113579] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Molecular characterization and hematological analysis of Listeria monocytogenes infection in dairy cows in Punjab (Pakistan). Arch Microbiol 2022; 204:201. [PMID: 35239048 DOI: 10.1007/s00203-022-02804-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 11/02/2022]
Abstract
Listeriosis is an emerging bacterial disease of animals and humans worldwide, caused by Listeria monocytogenes. The infected dairy cows continuously shed the microbes in their milk, a human being's concern. This study was designed to molecular characterize the Listeria monocytogenes isolated from symptomatic cow's milk of tehsils Samundri, Gujar khan, and Alipur of Punjab. A total of 175 milk samples were collected, pre-enriched and cultured on PALCAM agar. The affirmation of the hlyA gene of Listeria monocytogenes was performed by polymerase chain reaction (PCR) and 3.43% of isolates were found positive. The phylogenetic analysis showed a resemblance of our isolates of Listeria monocytogenes with India (KP965733), the USA (DQ812484), and 3 of our isolates made a clade. The leucocytes and neutrophils count were found significantly increased in listeriosis affected cows. The Chi-square test showed a significant association between poor quality silage feeding and listeriosis. The presence of L.monocytogenes in cow's milk indicates a potential threat to humans. It is further recommended that it should be consistently monitored to ensure food safety.
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Martín I, Rodríguez A, Alía A, Martínez-Blanco M, Lozano-Ojalvo D, Córdoba JJ. Control of Listeria monocytogenes growth and virulence in a traditional soft cheese model system based on lactic acid bacteria and a whey protein hydrolysate with antimicrobial activity. Int J Food Microbiol 2022; 361:109444. [PMID: 34749186 DOI: 10.1016/j.ijfoodmicro.2021.109444] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 10/08/2021] [Accepted: 10/17/2021] [Indexed: 12/26/2022]
Abstract
"Torta del Casar" is a Spanish soft-ripened cheese made with sheep's raw milk and subjected to a short ripening process, which favors the growth of pathogenic microorganisms including Listeria monocytogenes. The development of strategies to control pathogens and minimize health risks associated with the presence of L. monocytogenes in these products is of great interest. In this regard, the anti-Listeria activity of a whey protein hydrolysate (ProH) alone or combined with six lactic acid bacteria strains isolated from cheese was evaluated in this study as a biocontrol strategy using a "Torta del Casar" cheese-based medium. The most active combinations of lactic acid bacteria assayed induced a reduction higher than two logarithmic units in the growth of L. monocytogenes (serotype 4b) compared to their respective control when they were co-inoculated in "Torta del Casar" cheese-based medium at 7 °C for 7 days. In addition, the observed downregulation of some key virulence genes of L. monocytogenes suggests that the strain Lactiplantibacillus plantarum B2 alone and combined with the strain Lactiplantibacillus spp. B4 are good candidates to be used as biocontrol agents against L. monocytogenes growth in traditional soft cheeses based on raw milk during their storage at refrigeration temperatures.
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Affiliation(s)
- Irene Martín
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003 Cáceres, Spain
| | - Alicia Rodríguez
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003 Cáceres, Spain.
| | - Alberto Alía
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003 Cáceres, Spain
| | - Mónica Martínez-Blanco
- Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Madrid, Spain
| | - Daniel Lozano-Ojalvo
- Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Madrid, Spain
| | - Juan J Córdoba
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003 Cáceres, Spain
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Zhang ZH, Wang S, Cheng L, Ma H, Gao X, Brennan CS, Yan JK. Micro-nano-bubble technology and its applications in food industry: A critical review. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2021.2023172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Zhi-Hong Zhang
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Shaomeng Wang
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Lina Cheng
- Key Laboratory of Functional Foods, Ministry of Agriculture, Guangdong Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Haile Ma
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Xianli Gao
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang, China
| | | | - Jing-Kun Yan
- Key Laboratory of Healthy Food Development and Nutrition Regulation of China National Light Industry, School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan, China
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Šteingolde Ž, Meistere I, Avsejenko J, Ķibilds J, Bergšpica I, Streikiša M, Gradovska S, Alksne L, Roussel S, Terentjeva M, Bērziņš A. Characterization and Genetic Diversity of Listeria monocytogenes Isolated from Cattle Abortions in Latvia, 2013-2018. Vet Sci 2021; 8:195. [PMID: 34564589 PMCID: PMC8473131 DOI: 10.3390/vetsci8090195] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/06/2021] [Accepted: 09/10/2021] [Indexed: 01/15/2023] Open
Abstract
Listeria monocytogenes can cause disease in humans and in a wide range of animal species, especially in farm ruminants. The aim of the study was to determine the prevalence and genetic diversity of L. monocytogenes related to 1185 cattle abortion cases in Latvia during 2013-2018. The prevalence of L. monocytogenes among cattle abortions was 16.1% (191/1185). The seasonality of L. monocytogenes abortions was observed with significantly higher occurrence (p < 0.01) in spring (March-May). In 61.0% of the cases, the affected cattle were under four years of age. L. monocytogenes abortions were observed during the third (64.6%) and second (33.3%) trimesters of gestation. Overall, 27 different sequence types (ST) were detected, and four of them, ST29 (clonal complex, CC29), ST37 (CC37), ST451 (CC11) and ST7 (CC7), covered more than half of the L. monocytogenes isolates. Key virulence factors like the prfA-dependent virulence cluster and inlA, inlB were observed in all the analyzed isolates, but lntA, inlF, inlJ, vip were associated with individual sequence types. Our results confirmed that L. monocytogenes is the most important causative agent of cattle abortions in Latvia and more than 20 different STs were observed in L. monocytogenes abortions in cattle.
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Affiliation(s)
- Žanete Šteingolde
- Institute of Food Safety, Animal Health and Environment BIOR, LV-1076 Riga, Latvia; (J.A.); (J.Ķ.); (I.B.); (M.S.); (S.G.); (L.A.); (A.B.)
- Institute of Food and Environmental Hygiene, Faculty of Veterinary Medicine, Latvia University of Life Sciences and Technologies, LV-3004 Jelgava, Latvia;
| | - Irēna Meistere
- Institute of Food Safety, Animal Health and Environment BIOR, LV-1076 Riga, Latvia; (J.A.); (J.Ķ.); (I.B.); (M.S.); (S.G.); (L.A.); (A.B.)
| | - Jeļena Avsejenko
- Institute of Food Safety, Animal Health and Environment BIOR, LV-1076 Riga, Latvia; (J.A.); (J.Ķ.); (I.B.); (M.S.); (S.G.); (L.A.); (A.B.)
| | - Juris Ķibilds
- Institute of Food Safety, Animal Health and Environment BIOR, LV-1076 Riga, Latvia; (J.A.); (J.Ķ.); (I.B.); (M.S.); (S.G.); (L.A.); (A.B.)
| | - Ieva Bergšpica
- Institute of Food Safety, Animal Health and Environment BIOR, LV-1076 Riga, Latvia; (J.A.); (J.Ķ.); (I.B.); (M.S.); (S.G.); (L.A.); (A.B.)
| | - Madara Streikiša
- Institute of Food Safety, Animal Health and Environment BIOR, LV-1076 Riga, Latvia; (J.A.); (J.Ķ.); (I.B.); (M.S.); (S.G.); (L.A.); (A.B.)
| | - Silva Gradovska
- Institute of Food Safety, Animal Health and Environment BIOR, LV-1076 Riga, Latvia; (J.A.); (J.Ķ.); (I.B.); (M.S.); (S.G.); (L.A.); (A.B.)
| | - Laura Alksne
- Institute of Food Safety, Animal Health and Environment BIOR, LV-1076 Riga, Latvia; (J.A.); (J.Ķ.); (I.B.); (M.S.); (S.G.); (L.A.); (A.B.)
| | - Sophie Roussel
- Maisons-Alfort Laboratory of Food Safety, University Paris-Est, French Agency for Food, Environmental and Occupational Health (ANSES), F-94701 Maisons-Alfort, France;
| | - Margarita Terentjeva
- Institute of Food and Environmental Hygiene, Faculty of Veterinary Medicine, Latvia University of Life Sciences and Technologies, LV-3004 Jelgava, Latvia;
| | - Aivars Bērziņš
- Institute of Food Safety, Animal Health and Environment BIOR, LV-1076 Riga, Latvia; (J.A.); (J.Ķ.); (I.B.); (M.S.); (S.G.); (L.A.); (A.B.)
- Institute of Food and Environmental Hygiene, Faculty of Veterinary Medicine, Latvia University of Life Sciences and Technologies, LV-3004 Jelgava, Latvia;
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