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Gonzales-Barron U, Cadavez V, De Oliveira Mota J, Guillier L, Sanaa M. A Critical Review of Risk Assessment Models for Listeria monocytogenes in Seafood. Foods 2024; 13:716. [PMID: 38472829 PMCID: PMC10930801 DOI: 10.3390/foods13050716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/22/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
Invasive listeriosis, due to its severe nature in susceptible populations, has been the focus of many quantitative risk assessment (QRA) models aiming to provide a valuable guide in future risk management efforts. A review of the published QRA models of Listeria monocytogenes in seafood was performed, with the objective of appraising the effectiveness of the control strategies at different points along the food chain. It is worth noting, however, that the outcomes of a QRA model are context-specific, and influenced by the country and target population, the assumptions that are employed, and the model architecture itself. Studies containing QRA models were retrieved through a literature search using properly connected keywords on Scopus and PubMed®. All 13 QRA models that were recovered were of short scope, covering, at most, the period from the end of processing to consumption; the majority (85%) focused on smoked or gravad fish. Since the modelled pathways commenced with the packaged product, none of the QRA models addressed cross-contamination events. Many models agreed that keeping the product's temperature at 4.0-4.5 °C leads to greater reductions in the final risk of listeriosis than reducing the shelf life by one week and that the effectiveness of both measures can be surpassed by reducing the initial occurrence of L. monocytogenes in the product (at the end of processing). It is, therefore, necessary that future QRA models for RTE seafood contain a processing module that can provide insight into intervention strategies that can retard L. monocytogenes' growth, such as the use of bacteriocins, ad hoc starter cultures and/or organic acids, and other strategies seeking to reduce cross-contamination at the facilities, such as stringent controls for sanitation procedures. Since risk estimates were shown to be moderately driven by growth kinetic parameters, namely, the exponential growth rate, the minimum temperature for growth, and the maximum population density, further work is needed to reduce uncertainties.
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Affiliation(s)
- Ursula Gonzales-Barron
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal;
- Laboratório para a Sustentabilidade e Tecnologia em Regiões de Montanha, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Vasco Cadavez
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal;
- Laboratório para a Sustentabilidade e Tecnologia em Regiões de Montanha, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Juliana De Oliveira Mota
- Department of Nutrition and Food Safety, World Health Organization (WHO), CH-1211 Geneva, Switzerland
| | - Laurent Guillier
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health & Safety (Anses), 14 Rue Pierre et Marie Curie, 94701 Maisons-Alfort, France;
| | - Moez Sanaa
- Department of Nutrition and Food Safety, World Health Organization (WHO), CH-1211 Geneva, Switzerland
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Lopatek M, Wieczorek K, Osek J. Prevalence and Antimicrobial Resistance of Bacterial Foodborne Pathogens Isolated from Raw Bivalve Molluscs Subjected to Consumption in Poland during a Ten-Year Period. Foods 2022; 11:foods11213521. [PMID: 36360134 PMCID: PMC9657009 DOI: 10.3390/foods11213521] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
The aim of this study was to evaluate the microbiological contamination of raw bivalve molluscan shellfish (BMS) available on the Polish market and determinate the antimicrobial resistance of the obtained isolates. A total of 1000 mollusc samples were tested for the presence of Salmonella spp., L. monocytogenes, V. parahaemolyticus, and S. aureus using the ISO standard methods. Additionally, the bacterial isolates’ susceptibility to antimicrobials was determined using the minimum inhibitory concentration (MIC) method. The obtained results showed that Salmonella spp. was detected in 31 (3.1%) samples, and 51.6% of the bacterial isolates were classified as Salmonella Typhimurium. A total of 74.2% of the Salmonella isolates were sensitive to all antimicrobial agents, whereas three isolates were multiresistant. L. monocytogenes was isolated from 18 (1.8%) BMS, and the isolates belonged to serogroups IIa, IIb, and IVb. Most of them were resistant to ceftriaxone (77.8%) and oxacillin (55.6%). V. parahaemolyticus was present in 24.2% BMS. These isolates were mainly resistant to ampicillin (77.3%) and streptomycin (64.0%). Moreover, 15.2% of the bivalve molluscs were contaminated with S. aureus. Most isolates belonging to this species were resistant to penicillin (84.9%). A total of 60 (6.0%) bivalve molluscs were contaminated with more than one pathogen simultaneously. In addition, the tested bacteria were more likely to be identified during the warmer period (53.9%) compared to the samples analyzed in colder months (35.7%). The obtained results indicate that raw bivalve molluscs from the Polish market are frequently contaminated with bacterial foodborne pathogens, which may be resistant to antimicrobials.
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Belias A, Sullivan G, Wiedmann M, Ivanek R. Factors that contribute to persistent Listeria in food processing facilities and relevant interventions: A rapid review. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108579] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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4
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Iacumin L, Cappellari G, Pellegrini M, Basso M, Comi G. Analysis of the Bioprotective Potential of Different Lactic Acid Bacteria Against Listeria monocytogenes in Cold-Smoked Sea Bass, a New Product Packaged Under Vacuum and Stored at 6 ± 2°C. Front Microbiol 2021; 12:796655. [PMID: 34987492 PMCID: PMC8721034 DOI: 10.3389/fmicb.2021.796655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 11/22/2021] [Indexed: 11/21/2022] Open
Abstract
The aim of the work was to monitor the presence of Listeria monocytogenes in cold-smoked fish products (trout, salmon, and sea bass) marketed in Italy. Cold-smoked sea bass is a new product that has not yet been commercialized and was collected from the production facility. Monitoring data have shown that cold-smoked products can be contaminated by L. monocytogenes, the presence of which has been highlighted mainly by enrichment culture (presence in 25 g). The isolated Listeria were serotyped and belonged mainly to low-virulence serotypes (1/2c), followed by serotypes 1/2a, 1/2b, and 4b. Furthermore, considering the ability of L. monocytogenes to grow in these products due to their chemical-physical characteristics (pH > 6.0, Aw > 0.97) and long shelf life at 4°C, an additional aim was to verify the activity of different bioprotective starters, including Lactilactobacillus sakei (LAK-23, Sacco srl, Via Alessandro Manzoni 29/A, 22071 Cadorago, CO, Italy), Carnobacterium spp., Lacticaseibacillus casei (SAL 106), and Lacticaseibacillus paracasei (SAL 211), in cold-smoked sea bass. All starters were bacteriocin producers. For this experiment, smoked sea bass samples were intentionally inoculated with a mixture of three different strains of L. monocytogenes and of each starter culture. After inoculation, the smoked sea bass were vacuum-packed and stored at 6 ± 2°C for 60 days, simulating the typical abuse storage temperature of markets and home refrigerators. At 0, 15, 30, 45, and 60 days, the sea bass samples were analyzed to evaluate the effectiveness of the starters against L. monocytogenes. Listeria monocytogenes growth was prevented only by the addition of the LAK-23 starter. Indeed, at the end of the shelf life, the amount of L. monocytogenes observed was similar to that in the inoculum. Consequently, the use of this starter can allow the inclusion of cold-smoked sea bass or smoked fish products in category 1.3 of Regolamento CE 2073/2005, which are products that do not support the growth of this microorganism. Finally, the activity of the LAK-23 starter did not produce an off flavor or off odor in the smoked sea bass.
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Affiliation(s)
| | | | | | | | - Giuseppe Comi
- Department of Agricultural, Food, Environmental and Animal Science, Università degli Studi di Udine, Udine, Italy
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Kang J, Oh H, Lee Y, Lee H, Lee S, Kim S, Ha J, Choi Y, Kim Y, Seo Y, Park E, Kim H, Yoon Y. Dynamic model to describe kinetic behavior of
Listeria monocytogenes
in smoked salmon. J Food Saf 2021. [DOI: 10.1111/jfs.12925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joohyun Kang
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
| | - Hyemin Oh
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
| | - Yewon Lee
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
| | - Heeyoung Lee
- Food Standard Research Center Korea Food Research Institute Wanju South Korea
| | - Soomin Lee
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
| | - Sejeong Kim
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
| | - Jimyeong Ha
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
| | - Yukyung Choi
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
| | - Yujin Kim
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
| | - Yeongeun Seo
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
| | - Eunyoung Park
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
| | - Hyunjung Kim
- Department of Research Group of Consumer Safety Korea Food Research Institute Wanju South Korea
| | - Yohan Yoon
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
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Benabbou R, Subirade M, Desbiens M, Fliss I. The Impact of Chitosan-Divergicin Film on Growth of Listeria monocytogenes in Cold-Smoked Salmon. Front Microbiol 2018; 9:2824. [PMID: 30534117 PMCID: PMC6275435 DOI: 10.3389/fmicb.2018.02824] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 11/02/2018] [Indexed: 12/19/2022] Open
Abstract
The aim of this study was to evaluate the impact of chitosan film, with bacteriocin divergicin 35 incorporate, on growth of Listeria monocytogenes in Cold smoked salmon. The simples of Cold-smoked wild salmon were inoculated with L. monocytogenes and treated with chitosan (100 kDa, 94.7% de-acetylated) and divergicin M35 was stored for 3 weeks at 4-8°C. The compounds were applied to the fish flesh in the form of solution or dried film. The film reduced L. monocytogenes to below the detection limit (<50 cfu/g) and kept total counts below 104 cfu per g compared to 109 cfu per g in control samples while the effectiveness of the solution was very limited. The inhibitory activity of the film lasted for 3 weeks, while the solution had no effect on L. monocytogenes counts measured on day 14. The film provided a better preservation of fish color (redness) and firmness than others treatments, while the solution had little impact on these parameters. It kept the volatile basic nitrogen (17.5 mg N/100 g) below the control value 29.9 mg N/100 g. Divergicin-loaded chitosan film thus may represent an interesting alternative for the bio-preservation of cold-smoked fish.
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Affiliation(s)
- Rajaa Benabbou
- Department of Food Science, Faculty of Agriculture and Food Sciences, Institute of Nutrition and Functional Foods, Université Laval, Québec City, QC, Canada
| | - Muriel Subirade
- Department of Food Science, Faculty of Agriculture and Food Sciences, Institute of Nutrition and Functional Foods, Université Laval, Québec City, QC, Canada
| | - Michel Desbiens
- Centre Technologique des Produits Aquatiques, Ministère de l’Agriculture des Pêcheries et de l’Alimentation, Gaspé, QC, Canada
| | - Ismail Fliss
- Department of Food Science, Faculty of Agriculture and Food Sciences, Institute of Nutrition and Functional Foods, Université Laval, Québec City, QC, Canada
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Agustín MDR, Brugnoni L. Multispecies biofilms betweenListeria monocytogenesandListeria innocuawith resident microbiota isolated from apple juice processing equipment. J Food Saf 2018. [DOI: 10.1111/jfs.12499] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- María del Rosario Agustín
- Department of Biology, Biochemistry and Pharmacy; Universidad Nacional del Sur (UNS); Bahía Blanca Argentina
| | - Lorena Brugnoni
- Institute of Biological and Biomedical Sciences of the South (INBIOSUR); Universidad Nacional del Sur (UNS), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Bahía Blanca Argentina
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8
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Selvaganapathi R, Jeyasekaran G, Shakila RJ, Sukumar D, Kumar MP, Sivaraman B. Occurrence of Listeria monocytogenes on the seafood contact surfaces of Tuticorin Coast of India. Journal of Food Science and Technology 2018; 55:2808-2812. [PMID: 30042598 DOI: 10.1007/s13197-018-3230-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/26/2018] [Accepted: 05/10/2018] [Indexed: 11/29/2022]
Abstract
Listeria monocytogenes was screened from different seafood contact surfaces in five sampling sites of fishing harbour, fish landing centers, seafood processing plants, fish market, and fish curing yards of Tuticorin Coast of India. 115 swab samples were collected and tested for the occurrence of L. monocytogenes by conventional and molecular methods. Overall, 5.22% of swab samples collected were positive for L. monocytogenes. The fishing harbour had high incidence (10.3%) of L. monocytogenes followed by fish landing centers (5.9%), and seafood processing plants (4.1%). Boat deck, fish transport tricycle were the two seafood contact surfaces in fishing harbour, which had the occurrence of L. monocytogenes. The swab samples from fish market and fish curing yards were negative for L. monocytogenes. All the isolated colonies of L. monocytogenes were confirmed by PCR assay targeting virulent hlyA gene. The DNA of all the isolates yielded a product of 174 bp on PCR amplification in comparison with L. monocytogenes Type culture (MTCC 1143). The results clearly indicated the occurrence of L. monocytogenes in seafood contact surfaces along the Tuticorin Coast of India.
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Affiliation(s)
- R Selvaganapathi
- 1Department of Fish Quality Assurance and Management, Fisheries College and Research Institute, Tamil Nadu Fisheries University, Tuticorin, Tamil Nadu 628 008 India
| | - G Jeyasekaran
- 1Department of Fish Quality Assurance and Management, Fisheries College and Research Institute, Tamil Nadu Fisheries University, Tuticorin, Tamil Nadu 628 008 India
| | - R Jeya Shakila
- 1Department of Fish Quality Assurance and Management, Fisheries College and Research Institute, Tamil Nadu Fisheries University, Tuticorin, Tamil Nadu 628 008 India
| | - D Sukumar
- 2Directorate of Fisheries Technology Transfer and Incubation Centre, Fisheries College and Research Institute, Tamil Nadu Fisheries University, Tuticorin, Tamil Nadu 628 008 India
| | - M Palani Kumar
- 1Department of Fish Quality Assurance and Management, Fisheries College and Research Institute, Tamil Nadu Fisheries University, Tuticorin, Tamil Nadu 628 008 India
| | - B Sivaraman
- 1Department of Fish Quality Assurance and Management, Fisheries College and Research Institute, Tamil Nadu Fisheries University, Tuticorin, Tamil Nadu 628 008 India
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ADESHINA I, ABDULWAHAB M, ADEWALE YA, SULEIMAN SB, TIAMIYU LO. Nijerya’nın Kwara Eyaletinde Tüketime Sunulan Kızartılmış Balıklar ile Kullanılan İşleme Levhası ve Aletlerde Listeria monocytogenes Varlığının Belirlenmesi. ACTA ACUST UNITED AC 2017. [DOI: 10.31196/huvfd.325713] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Losio MN, Dalzini E, Pavoni E, Merigo D, Finazzi G, Daminelli P. A survey study on safety and microbial quality of “gluten-free” products made in Italian pasta factories. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.08.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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11
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NicAogáin K, O’Byrne CP. The Role of Stress and Stress Adaptations in Determining the Fate of the Bacterial Pathogen Listeria monocytogenes in the Food Chain. Front Microbiol 2016; 7:1865. [PMID: 27933042 PMCID: PMC5120093 DOI: 10.3389/fmicb.2016.01865] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 11/04/2016] [Indexed: 12/15/2022] Open
Abstract
The foodborne pathogen Listeria monocytogenes is a highly adaptable organism that can persist in a wide range of environmental and food-related niches. The consumption of contaminated ready-to-eat foods can cause infections, termed listeriosis, in vulnerable humans, particularly those with weakened immune systems. Although these infections are comparatively rare they are associated with high mortality rates and therefore this pathogen has a significant impact on food safety. L. monocytogenes can adapt to and survive a wide range of stress conditions including low pH, low water activity, and low temperature, which makes it problematic for food producers who rely on these stresses for preservation. Stress tolerance in L. monocytogenes can be explained partially by the presence of the general stress response (GSR), a transcriptional response under the control of the alternative sigma factor sigma B (σB) that reconfigures gene transcription to provide homeostatic and protective functions to cope with the stress. Within the host σB also plays a key role in surviving the harsh conditions found in the gastrointestinal tract. As the infection progresses beyond the GI tract L. monocytogenes uses an intracellular infectious cycle to propagate, spread and remain protected from the host's humoral immunity. Many of the virulence genes that facilitate this infectious cycle are under the control of a master transcriptional regulator called PrfA. In this review we consider the environmental reservoirs that enable L. monocytogenes to gain access to the food chain and discuss the stresses that the pathogen must overcome to survive and grow in these environments. The overlap that exists between stress tolerance and virulence is described. We review the principal measures that are used to control the pathogen and point to exciting new approaches that might provide improved means of control in the future.
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Affiliation(s)
| | - Conor P. O’Byrne
- Bacterial Stress Response Group, Microbiology, School of Natural Sciences, College of Science, National University of IrelandGalway, Ireland
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12
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Capita R, Prieto M, Mereghetti L, Alonso-Calleja C. Characterisation of Listeria monocytogenes Isolates from Poultry by Serotyping and Phage Typing. FOOD SCI TECHNOL INT 2016. [DOI: 10.1177/1082013205051264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
With the aim of improving the knowledge of Listeria monocytogenestypes distributed in poultry, isolates collected from a hundred eviscerated and refrigerated chicken carcasses from four different slaughterhouse plants in northwest Spain were characterised by serotyping and phage typing. Forty-two phage patterns were observed. Eight phage patterns (43, 43/387, 43/387/4477/1652 and 43/19/387/575 for strains of serogroup 1/2 and 107, 108/107/47, 2389 and 2389/3274 for strains of serogroup 4) were the most common. Thus, thirty strains (56.60% of phage typeable strains) showed the above-mentioned or indistinguishable (1 major phage reaction differences for serogroup 1/2 strains or 2 major differences for serogroup 4) patterns. A wide distribution of some L. monocytogenesphage types was observed because different chicken carcasses (including carcasses from different slaughterhouses) were contaminated with the same or indistinguishable L. monocytogenesphage types. Besides, more than one type (serogroup or phage type) of L. monocytogeneswas detected in 43.75% of positive samples. This finding emphasised the usefulness of subtyping several Listeria monocytogenesisolates from the same food sample in epidemiological studies.
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Affiliation(s)
- R. Capita
- Departmentof Food Hygiene and Food Technology, University of León, Spain
| | - M. Prieto
- Departmentof Food Hygiene and Food Technology, University of León, Spain
| | - L. Mereghetti
- Laboratoryof Bacteriology, Medicine Faculty, University FranÁois Rabelais, Tours, France
| | - C. Alonso-Calleja
- Departmentof Food Hygiene and Food Technology, University of León, Spain
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Park S, Jung H, Lee M, Choi H, Kim J, Jung J, Park S, Kim M, Kim K, Oh Y, Chung A, Jung K. Detection of <i>Listeria monocytogenes</i> in Foods and Characterization by PFGE. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/aim.2016.64033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Preußel K, Milde-Busch A, Schmich P, Wetzstein M, Stark K, Werber D. Risk Factors for Sporadic Non-Pregnancy Associated Listeriosis in Germany-Immunocompromised Patients and Frequently Consumed Ready-To-Eat Products. PLoS One 2015; 10:e0142986. [PMID: 26599484 PMCID: PMC4658106 DOI: 10.1371/journal.pone.0142986] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 10/29/2015] [Indexed: 01/11/2023] Open
Abstract
Non-pregnancy associated (N-PA) listeriosis, caused by Listeria monocytogenes, is a rare but severe disease, and is predominantly food-borne. Most cases appear sporadic and their infection vehicle remains unknown. Incidence has increased since 2008 in Germany. We aimed to identify underlying conditions and foods associated with sporadic N-PA listeriosis in Germany. We performed a nationwide case-control study from March 2012-December 2013. Cases were sporadic N-PA listeriosis patients notified to public health. Control subjects were age (40-65 years, 66-75 years, ≥ 76 years) frequency-matched persons from a nationwide random telephone sample. A structured questionnaire collected information on underlying diseases, therapies and >60 food items. We conducted multivariable logistic regression analysis, adjusting for host factors identified by causal diagram theory, and calculated population attributable fractions. We enrolled 109 cases and 1982 controls. Cases' median age was 69 years, 55% were male, 44% received immunosuppressive therapy within 3 months prior to illness onset; a further 28% had at least one immunocompromising disease. In multivariable analysis, immunosuppressive therapy (OR 8.8, 95%CI 4.9-15.6), immunocompromising disease (OR 2.7; 95%CI 1.4-5.2), gastric acid suppression (OR 3.0; 95%CI 1.4-6.3), the consumption of cold cooked sausages (OR 2.6; 95%CI 1.6-4.4), the preferred consumption of packaged cheese (OR 2.1; 95%CI 1.3-3.5) and pre-sliced cheese (OR 2.2; 95%CI 1.3-3.7) were significantly associated with N-PA listeriosis. These foods accounted for 59% of all cases. Typical high risk foods, e.g. cold seafood, certain types of cheeses, tended to be negatively associated with disease. In conclusion, immunosuppressive therapy and frequently consumed ready-to-eat foods are the main risk factors for sporadic N-PA listeriosis in Germany. To reduce their risk, immunocompromised persons should consume the identified foods well before the 'use-by' date. The microbiological criteria for Listeria monocytogenes in ready-to-eat foods may insufficiently protect persons who are markedly immunocompromised.
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Affiliation(s)
- Karina Preußel
- Department for Infectious Disease Epidemiology, Robert Koch Institute, Berlin, Germany
| | - Astrid Milde-Busch
- Department for Infectious Disease Epidemiology, Robert Koch Institute, Berlin, Germany
| | - Patrick Schmich
- Department of Epidemiology and Health Monitoring, Robert Koch Institute, Berlin, Germany
| | - Matthias Wetzstein
- Department of Epidemiology and Health Monitoring, Robert Koch Institute, Berlin, Germany
| | - Klaus Stark
- Department for Infectious Disease Epidemiology, Robert Koch Institute, Berlin, Germany
| | - Dirk Werber
- Department for Infectious Disease Epidemiology, Robert Koch Institute, Berlin, Germany
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Jamali H, Paydar M, Ismail S, Looi CY, Wong WF, Radmehr B, Abedini A. Prevalence, antimicrobial susceptibility and virulotyping of Listeria species and Listeria monocytogenes isolated from open-air fish markets. BMC Microbiol 2015. [PMID: 26209099 DOI: 10.1186/s12866‐015‐0476‐7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate the prevalence and characterization of Listeria species and Listeria monocytogenes isolated from raw fish and open-air fish market environments. Eight hundred and sixty two samples including raw fish and fish market environments (samples from workers' hands, workers' knives, containers and work surface) were collected from the open-air fish markets in the Northern region of Iran. RESULTS Listeria spp. was isolated from 104/488 (21.3%) raw fish and 29/374 (7.8%) of samples from open-air fish market environment. The isolates of Listeria spp. included L. innocua (35.3%), L. monocytogenes (32.3%), L. seeligeri (18%), and L. ivanovii (14.3%). Of the 43 L. monocytogenes isolates, 31 (72.1%), 10 (23.3%) and 2 (4.7%) belonged to serovars 1/2a, 4b, and 1/2b, respectively. The inlA, inlB, inlC, inlJ, actA, hlyA, iap, plcA, and prfA virulence-associated genes were detected in almost all of the L. monocytogenes isolates. The Listeria spp. isolates showed high resistance against tetracycline (23.3%), penicillin G, and cephalothin (each 16.5%). Besides, we observed significant resistance level to tetracycline (27.9%), ampicillin (20.9%), cephalothin, penicillin G, and streptomycin (each 16.3%) in the L. monocytogenes isolates. All of the isolates were susceptible to cefotaxime, gentamicin, kanamycin, and pefloxacin. We found that tetM (25.6%), tetA (23.3%), ampC (14%), and penA (11.6%) were the most prevalent antibiotic resistance genes in the L. monocytogenes isolates. CONCLUSIONS Recovery of potentially pathogenic L. monocytogenes from raw fish and environment of open-air fish market samples in this study is a convincing evidence for the zoonotic potential of listeriosis.
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Affiliation(s)
- Hossein Jamali
- Biohealth Science Program, Institute of Biological Science, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Mohammadjavad Paydar
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Salmah Ismail
- Biohealth Science Program, Institute of Biological Science, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Chung Yeng Looi
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Won Fen Wong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Behrad Radmehr
- Department of Food Hygiene and Quality Control, Islamic Azad University-Karaj Branch, Karaj, 31485-313, Iran.
| | - Atefeh Abedini
- Centre de Recherche en Reproduction Animale, Université de Montréal, C.P. 5000, St-Hyacinthe, QC, Canada.
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Jamali H, Paydar M, Ismail S, Looi CY, Wong WF, Radmehr B, Abedini A. Prevalence, antimicrobial susceptibility and virulotyping of Listeria species and Listeria monocytogenes isolated from open-air fish markets. BMC Microbiol 2015; 15:144. [PMID: 26209099 PMCID: PMC4515007 DOI: 10.1186/s12866-015-0476-7] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 07/03/2015] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate the prevalence and characterization of Listeria species and Listeria monocytogenes isolated from raw fish and open-air fish market environments. Eight hundred and sixty two samples including raw fish and fish market environments (samples from workers' hands, workers' knives, containers and work surface) were collected from the open-air fish markets in the Northern region of Iran. RESULTS Listeria spp. was isolated from 104/488 (21.3%) raw fish and 29/374 (7.8%) of samples from open-air fish market environment. The isolates of Listeria spp. included L. innocua (35.3%), L. monocytogenes (32.3%), L. seeligeri (18%), and L. ivanovii (14.3%). Of the 43 L. monocytogenes isolates, 31 (72.1%), 10 (23.3%) and 2 (4.7%) belonged to serovars 1/2a, 4b, and 1/2b, respectively. The inlA, inlB, inlC, inlJ, actA, hlyA, iap, plcA, and prfA virulence-associated genes were detected in almost all of the L. monocytogenes isolates. The Listeria spp. isolates showed high resistance against tetracycline (23.3%), penicillin G, and cephalothin (each 16.5%). Besides, we observed significant resistance level to tetracycline (27.9%), ampicillin (20.9%), cephalothin, penicillin G, and streptomycin (each 16.3%) in the L. monocytogenes isolates. All of the isolates were susceptible to cefotaxime, gentamicin, kanamycin, and pefloxacin. We found that tetM (25.6%), tetA (23.3%), ampC (14%), and penA (11.6%) were the most prevalent antibiotic resistance genes in the L. monocytogenes isolates. CONCLUSIONS Recovery of potentially pathogenic L. monocytogenes from raw fish and environment of open-air fish market samples in this study is a convincing evidence for the zoonotic potential of listeriosis.
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Affiliation(s)
- Hossein Jamali
- Biohealth Science Program, Institute of Biological Science, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Mohammadjavad Paydar
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Salmah Ismail
- Biohealth Science Program, Institute of Biological Science, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Chung Yeng Looi
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Won Fen Wong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Behrad Radmehr
- Department of Food Hygiene and Quality Control, Islamic Azad University-Karaj Branch, Karaj, 31485-313, Iran.
| | - Atefeh Abedini
- Centre de Recherche en Reproduction Animale, Université de Montréal, C.P. 5000, St-Hyacinthe, QC, Canada.
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18
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Zhan X, Zheng Q, Fu J, Xu J, Cao J. A Rapid Multiplex PCR-DHPLC Method of Detection and Identification of Pathogenic Bacteria in Aquatic Products. J Food Saf 2014. [DOI: 10.1111/jfs.12156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Xiaowei Zhan
- College of Plant protection; Shenyang Agricultural University; Dongling Road No.120, Shenhe District Shenyang 110866 China
| | - Qiuyue Zheng
- Microbiology Laboratory; Liaoning entry-exit inspection and quarantine bureau; Changjiang East Road No.60 Zhongshan District Dalian 116001 China
| | - Junfan Fu
- College of Plant protection; Shenyang Agricultural University; Dongling Road No.120, Shenhe District Shenyang 110866 China
| | - Junyi Xu
- Microbiology Laboratory; Liaoning entry-exit inspection and quarantine bureau; Changjiang East Road No.60 Zhongshan District Dalian 116001 China
| | - Jijuan Cao
- Microbiology Laboratory; Liaoning entry-exit inspection and quarantine bureau; Changjiang East Road No.60 Zhongshan District Dalian 116001 China
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19
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Jami M, Ghanbari M, Zunabovic M, Domig KJ, Kneifel W. Listeria monocytogenesin Aquatic Food Products-A Review. Compr Rev Food Sci Food Saf 2014. [DOI: 10.1111/1541-4337.12092] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Mansooreh Jami
- Dept. of Food Science and Technology; Inst. of Food Science; BOKU-Univ. of Natural Resources and Life Sciences; Muthgasse 18, A-1190 Vienna Austria
- Dept. of Fisheries; Faculty of Natural Resources; Univ. of Zabol; Zabol Iran
| | - Mahdi Ghanbari
- Dept. of Food Science and Technology; Inst. of Food Science; BOKU-Univ. of Natural Resources and Life Sciences; Muthgasse 18, A-1190 Vienna Austria
- Dept. of Fisheries; Faculty of Natural Resources; Univ. of Zabol; Zabol Iran
| | - Marija Zunabovic
- Dept. of Food Science and Technology; Inst. of Food Science; BOKU-Univ. of Natural Resources and Life Sciences; Muthgasse 18, A-1190 Vienna Austria
| | - Konrad J. Domig
- Dept. of Food Science and Technology; Inst. of Food Science; BOKU-Univ. of Natural Resources and Life Sciences; Muthgasse 18, A-1190 Vienna Austria
| | - Wolfgang Kneifel
- Dept. of Food Science and Technology; Inst. of Food Science; BOKU-Univ. of Natural Resources and Life Sciences; Muthgasse 18, A-1190 Vienna Austria
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20
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Grönqvist S, Skipnes D, Ohlsson T, Rosnes J. Use of α-amylase TTI and Heat Transfer Modeling to Assess the Thermal Pasteurization of Fried Fish Burgers. J FOOD PROCESS PRES 2014. [DOI: 10.1111/jfpp.12114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- S.K. Grönqvist
- Nofima AS; Richard Johnsens Gate 4 Box 8034 N-4024 Stavanger Norway
| | - D. Skipnes
- Nofima AS; Richard Johnsens Gate 4 Box 8034 N-4024 Stavanger Norway
| | - T. Ohlsson
- SIK; Swedish Institute of Food and Biotechnology AB; Gothenburg Sweden
| | - J.T. Rosnes
- Nofima AS; Richard Johnsens Gate 4 Box 8034 N-4024 Stavanger Norway
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21
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Tocmo R, Krizman K, Khoo WJ, Phua LK, Kim M, Yuk HG. Listeria monocytogenes in Vacuum-Packed Smoked Fish Products: Occurrence, Routes of Contamination, and Potential Intervention Measures. Compr Rev Food Sci Food Saf 2014; 13:172-189. [PMID: 33412645 DOI: 10.1111/1541-4337.12052] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2009] [Accepted: 11/14/2003] [Indexed: 12/15/2022]
Abstract
The occurrence of Listeria monocytogenes in ready-to-eat (RTE) fish products is well documented and represents an important food safety concern. Contamination of this pathogen in vacuum-packed (VP) smoked fish products at levels greater than the RTE food limit (100 CFU/g) has been traced to factors such as poor sanitary practices, contaminated processing environments, and temperature abuse during prolonged storage in retail outlets. Intervention technologies including physical, biological, and chemical techniques have been studied to control transmission of L. monocytogenes to these products. High-pressure processing, irradiation, and pulsed UV-light treatment have shown promising results. Potential antilisterial effects of some sanitizers and combined chemical preservatives have also been demonstrated. Moreover, the concept of biopreservation, use of bioactive packaging, and a combination of different intervention technologies, as in the hurdle concept, are also under consideration. In this review, the prevalence, routes of contamination, and potential intervention technologies to control transmission of L. monocytogenes in VP smoked fish products are discussed.
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Affiliation(s)
- Restituto Tocmo
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
| | - Katja Krizman
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
| | - Wei Jie Khoo
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
| | - Li Kai Phua
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
| | - Minjeong Kim
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
| | - Hyun-Gyun Yuk
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
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22
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Ferreira V, Wiedmann M, Teixeira P, Stasiewicz MJ. Listeria monocytogenes persistence in food-associated environments: epidemiology, strain characteristics, and implications for public health. J Food Prot 2014; 77:150-70. [PMID: 24406014 DOI: 10.4315/0362-028x.jfp-13-150] [Citation(s) in RCA: 458] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Over the last 10 to 15 years, increasing evidence suggests that persistence of Listeria monocytogenes in food processing plants for years or even decades is an important factor in the transmission of this foodborne pathogen and the root cause of a number of human listeriosis outbreaks. L. monocytogenes persistence in other food-associated environments (e.g., farms and retail establishments) may also contribute to food contamination and transmission of the pathogen to humans. Although L. monocytogenes persistence is typically identified through isolation of a specific molecular subtype from samples collected in a given environment over time, formal (statistical) criteria for identification of persistence are undefined. Environmental factors (e.g., facilities and equipment that are difficult to clean) have been identified as key contributors to persistence; however, the mechanisms are less well understood. Although some researchers have reported that persistent strains possess specific characteristics that may facilitate persistence (e.g., biofilm formation and better adaptation to stress conditions), other researchers have not found significant differences between persistent and nonpersistent strains in the phenotypic characteristics that might facilitate persistence. This review includes a discussion of our current knowledge concerning some key issues associated with the persistence of L. monocytogenes, with special focus on (i) persistence in food processing plants and other food-associated environments, (ii) persistence in the general environment, (iii) phenotypic and genetic characteristics of persistent strains, (iv) niches, and (v) public health and economic implications of persistence. Although the available data clearly indicate that L. monocytogenes persistence at various stages of the food chain contributes to contamination of finished products, continued efforts to quantitatively integrate data on L. monocytogenes persistence (e.g., meta-analysis or quantitative microbial risk assessment) will be needed to advance our understanding of persistence of this pathogen and its economic and public health impacts.
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Affiliation(s)
- V Ferreira
- Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa Porto, Rua Dr. António Bernardino Almeida, 4200-072 Porto, Portugal; Department of Food Science, Cornell University, Ithaca, New York 14853, USA
| | - M Wiedmann
- Department of Food Science, Cornell University, Ithaca, New York 14853, USA
| | - P Teixeira
- Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa Porto, Rua Dr. António Bernardino Almeida, 4200-072 Porto, Portugal
| | - M J Stasiewicz
- Department of Food Science, Cornell University, Ithaca, New York 14853, USA
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23
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Rotariu O, Thomas DJI, Goodburn KE, Hutchison ML, Strachan NJ. Smoked salmon industry practices and their association with Listeria monocytogenes. Food Control 2014. [DOI: 10.1016/j.foodcont.2013.07.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Fallah AA, Saei-Dehkordi SS, Mahzounieh M. Occurrence and antibiotic resistance profiles of Listeria monocytogenes isolated from seafood products and market and processing environments in Iran. Food Control 2013. [DOI: 10.1016/j.foodcont.2013.06.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Tosun ŞY, Özden Ö. Survey of Inhibition ofListeria Monocytogenesin Hot-Smoked Rainbow Trout Fillets for Food Safety. J FOOD PROCESS PRES 2012. [DOI: 10.1111/j.1745-4549.2012.00781.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ş. Yasemin Tosun
- Department of Seafood Processing and Quality Control; Faculty of Fisheries; Istanbul University; Istanbul 34470 Turkey
| | - Özkan Özden
- Department of Seafood Processing and Quality Control; Faculty of Fisheries; Istanbul University; Istanbul 34470 Turkey
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26
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Di Ciccio P, Meloni D, Festino AR, Conter M, Zanardi E, Ghidini S, Vergara A, Mazzette R, Ianieri A. Longitudinal study on the sources of Listeria monocytogenes contamination in cold-smoked salmon and its processing environment in Italy. Int J Food Microbiol 2012; 158:79-84. [DOI: 10.1016/j.ijfoodmicro.2012.06.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Revised: 05/17/2012] [Accepted: 06/24/2012] [Indexed: 11/26/2022]
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27
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Milillo SR, Friedly EC, Saldivar JC, Muthaiyan A, O'bryan C, Crandall PG, Johnson MG, Ricke SC. A Review of the Ecology, Genomics, and Stress Response ofListeria innocuaandListeria monocytogenes. Crit Rev Food Sci Nutr 2012; 52:712-25. [DOI: 10.1080/10408398.2010.507909] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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Synergistic effect of steam and lactic acid against Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes biofilms on polyvinyl chloride and stainless steel. Int J Food Microbiol 2012; 157:218-23. [PMID: 22647677 DOI: 10.1016/j.ijfoodmicro.2012.05.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 05/08/2012] [Accepted: 05/08/2012] [Indexed: 11/23/2022]
Abstract
This study was designed to investigate the individual and combined effects of steam and lactic acid (LA) on the inactivation of biofilms formed by Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes on polyvinyl chloride (PVC) and stainless steel. Six day old biofilms were developed on PVC and stainless steel coupons by using a mixture of three strains each of three foodborne pathogens at 25°C. After biofilm development, PVC and stainless steel coupons were treated with LA alone (immersed in 0.5% or 2% for 5s, 15s, and 30s), steam alone (on both sides for 5, 10, and 20s), and the combination of steam and LA. The numbers of biofilm cells of the three foodborne pathogens were significantly (p<0.05) reduced as the amount of LA and duration of steam exposure increased. There was a synergistic effect of steam and LA on the viability of biofilm cells of the three pathogens. For all biofilm cells of the three foodborne pathogens, reduction levels of individual treatments ranged from 0.11 to 2.12 log CFU/coupon. The combination treatment of steam and LA achieved an additional 0.2 to 2.11 log reduction compared to the sum of individual treatments. After a combined treatment of immersion in 2% LA for 15s or 30s followed by exposure to steam for 20s, biofilm cells of the three pathogens were reduced to below the detection limit (1.48 log). From the results of this study, bacterial populations of biofilms on PVC coupons did not receive the same thermal effect as on stainless steel coupons. Effectiveness of steam and LA may be attributed to the difference between Gram-negative and Gram-positive characteristics of the bacteria studied. The results of this study suggest that the combination of steam and LA has potential as a biofilm control intervention for food processing facilities.
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29
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Scientific Opinion on the evaluation of the safety and efficacy of Listex™ P100 for the removal of Listeria monocytogenes surface contamination of raw fish. EFSA J 2012. [DOI: 10.2903/j.efsa.2012.2615] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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30
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Kovačević J, McIntyre LF, Henderson SB, Kosatsky T. Occurrence and distribution of listeria species in facilities producing ready-to-eat foods in British Columbia, Canada. J Food Prot 2012; 75:216-24. [PMID: 22289580 DOI: 10.4315/0362-028x.jfp-11-300] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In British Columbia (BC), Canada, food processing facilities licensed under provincial authority are not required to sample for Listeria monocytogenes in food products or processing environments. In 2009, we conducted a survey of dairy, fish, and meat facilities under BC authority to estimate the prevalence of Listeria spp. and L. monocytogenes in ready-to-eat (RTE) foods and production environments. From August to October, 250 RTE food samples and 258 swabs from the food processing environments of 43 facilities were collected. Standard culture methods were applied to both food samples and swabs. Of swabs collected from all 258 environmental surfaces, 15% were positive for Listeria spp. Significantly (P, 0.001) more fish facilities than dairy and meat facilities had food contact surfaces contaminated with Listeria spp. L. monocytogenes was found in RTE foods from fish facilities alone (5 of 12); in all five of the fish facilities with contaminated product, one or more environmental swabs were also positive for L. monocytogenes. The results suggest that while control of L. monocytogenes in BC-inspected dairy and meat facilities is effective in limiting food contamination, there is a need for provincial inspectors to initiate improved monitoring and management of contamination by L. monocytogenes in RTE fish processing facilities.
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Affiliation(s)
- Jovana Kovačević
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, University of British Columbia, 2205 East Mall, Vancouver, British Columbia, Canada V6T 1Z4.
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31
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Weiss A, Wild S, Lutz AS, Schmidt H. Analysis of the survival of Listeria monocytogenes in food-grade lubricants. Eur Food Res Technol 2011. [DOI: 10.1007/s00217-011-1638-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Cruz CD, Fletcher GC. Prevalence and biofilm-forming ability of Listeria monocytogenes in New Zealand mussel (Perna canaliculus) processing plants. Food Microbiol 2011; 28:1387-93. [PMID: 21839390 DOI: 10.1016/j.fm.2011.06.014] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Revised: 06/10/2011] [Accepted: 06/22/2011] [Indexed: 10/18/2022]
Abstract
Greenshell™ mussels are New Zealand's largest seafood export species. Some export markets require compliance with 'zero' tolerance legislation for Listeria monocytogenes in 25 g of product. Even though individually quick frozen (IQF) mussel products are labeled 'to be cooked', and are not classified as ready-to-eat, some markets still require them to comply with the strict policy. Three mussel processing plants were assessed for the pattern of L. monocytogenes contamination on raw material, environment, food contact surfaces, and in the final product. Cultures (n = 101) obtained from an industrial Listeria monitoring program from August 2007 to June 2009 were characterized by serotyping and pulsed field gel electrophoresis. Using the crystal violet method, isolates were assessed for their ability to form biofilms. This work confirmed the presence of L. monocytogenes in raw and processed product, and the importance of cross-contamination from external and internal environments. Processing plants had L. monocytogenes pulsotypes that were detected more than once over 6 months. No correlation was found between biofilm-forming ability and persistent isolates. Two pulsotypes (including a persistent one), were previously isolated in human cases of listeriosis in New Zealand, but none of the pulsotypes matched those involved in international outbreaks.
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Affiliation(s)
- Cristina D Cruz
- The New Zealand Institute for Plant & Food Research Limited, Auckland 1025, New Zealand.
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33
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Chen BY, Pyla R, Kim TJ, Silva JL, Jung YS. Incidence and persistence of Listeria monocytogenes in the catfish processing environment and fresh fillets. J Food Prot 2010; 73:1641-50. [PMID: 20828470 DOI: 10.4315/0362-028x-73.9.1641] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Incidence of Listeria spp. in whole raw catfish, catfish fillets, and processing environments from two catfish processing facilities was determined in August 2008 and August 2009. Thirty-nine (18.4%) of 212 samples collected in August 2008 were positive for Listeria monocytogenes. Prevalences of Listeria species L. innocua and L. seeligeri-L. welshimeri-L. ivanovii were 11.3 and 23.6%, respectively. Of 209 samples collected in August 2009, 12.4% were positive for L. monocytogenes, 11% for L. innocua, and 19.6% for L. seeligeri-L. welshimeri-L. ivanovii. No Listeria grayi was detected in any of the samples. L. monocytogenes was not found in catfish skins and intestines, but was detected in catfish fillets, on food contact surfaces, and on non-food contact surfaces with frequencies of 45.0, 12.0, and 11.1%, respectively. In August 2008 isolates, serotypes 1/2b (62.2%) and 3b (15.6%) were frequently isolated, whereas the majority of the August 2009 isolates (92.3%) were serotype 1/2b. Genotyping analyses revealed that some genotypes of L. monocytogenes isolates were detected in one facility even after a year, but no persistence of L. monocytogenes was observed in the other facility. In addition, some L. monocytogenes isolates from fresh fillets showed genotypes that were either identical, or more than 90% similar, to those of L. monocytogenes isolates from food contact surfaces in the processing lines. The results of this study suggest that processing environment rather than whole raw catfish is an important source of L. monocytogenes contamination in the catfish fillets. These results should assist the catfish industry to develop better control and prevention strategies for L. monocytogenes.
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Affiliation(s)
- Bang-Yuan Chen
- Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi 39762, USA
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34
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Chen BY, Pyla R, Kim TJ, Silva JL, Jung YS. Prevalence and contamination patterns of Listeria monocytogenes in catfish processing environment and fresh fillets. Food Microbiol 2010; 27:645-52. [DOI: 10.1016/j.fm.2010.02.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2009] [Revised: 02/19/2010] [Accepted: 02/27/2010] [Indexed: 11/29/2022]
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35
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Chitlapilly Dass S, Abu-Ghannam N, Antony-Babu S, J. Cummins E. Ecology and molecular typing of L. monocytogenes in a processing plant for cold-smoked salmon in the Republic of Ireland. Food Res Int 2010. [DOI: 10.1016/j.foodres.2010.04.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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SONG H, KIM B, KIM Y, LEE K, KWON J, JO C. RADIATION SENSITIVITY OF 3-STRAIN COCKTAIL PATHOGENS INOCULATED INTO SEASONED AND FERMENTED SQUID AND ENHANCEMENT OF MICROBIAL QUALITY BY IRRADIATION. J Food Saf 2010. [DOI: 10.1111/j.1745-4565.2009.00202.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Survey of Listeria monocytogenes in ready-to-eat products: Prevalence by brands and retail establishments for exposure assessment of listeriosis in Northern Spain. Food Control 2009. [DOI: 10.1016/j.foodcont.2008.11.013] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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38
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Uyttendaele M, Busschaert P, Valero A, Geeraerd A, Vermeulen A, Jacxsens L, Goh K, De Loy A, Van Impe J, Devlieghere F. Prevalence and challenge tests of Listeria monocytogenes in Belgian produced and retailed mayonnaise-based deli-salads, cooked meat products and smoked fish between 2005 and 2007. Int J Food Microbiol 2009; 133:94-104. [DOI: 10.1016/j.ijfoodmicro.2009.05.002] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2008] [Revised: 04/17/2009] [Accepted: 05/03/2009] [Indexed: 10/20/2022]
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39
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Lactic acid bacteria biodiversity in Italian marinated seafood salad and their interactions on the growth of Listeria monocytogenes. Food Control 2009. [DOI: 10.1016/j.foodcont.2008.07.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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40
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Midelet-Bourdin G, Beaufort A, Leroi F, Cardinal M, Rudelle S, Leleu G, Copin S, Malle P. Impact of -2 degrees C superchilling before refrigerated storage (4 and 8 degrees C) on the microbiological and sensory qualities of cold-smoked salmon. J Food Prot 2008; 71:2198-207. [PMID: 19044261 DOI: 10.4315/0362-028x-71.11.2198] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Detection and enumeration of Listeria monocytogenes and total spoilage bacteria in 40 batches of cold-smoked salmon (one batch = 42 products from the same day of manufacture) straight from the factory were carried out. If L. monocytogenes was detected in at least one of the nine samples analyzed on receipt at the laboratory, 9 products of the same batch were stored for 10 days at 4 degrees C, which was followed by 18 days at 8 degrees C (control), 12 products were superchilled for 14 days at -2 degrees C, and 12 other products were superchilled for 28 days at -2 degrees C and then stored under the same conditions as the control was stored. L. monocytogenes was detected in 7% of the 40 batches analyzed immediately after receipt at the laboratory. L. monocytogenes prevalence was similar (approximately 25%) throughout the storage at 4 and 8 degrees C, both in control and super-chilled products at -2 degrees C for 14 days. After superchilling for 28 days at -2 degrees C, L. monocytogenes was found in 9% of products, and in 39% at the end of the storage above 0 degree C. Moreover, the L. monocytogenes count was higher after 3 and 4 weeks of storage at 4 and 8 degrees C in products superchilled 28 days at -2 degrees C than in control products or in products superchilled for 14 days. Serotype 1/2a-3a and nine genetic groups were identified and found throughout the storage scenario. At the end of shelf life, sensory characteristics of products superchilled for 28 days at -2 degrees C were slightly modified. A decrease in firmness associated with increased tearing of salmon slices was observed as well as a slight amine odor.
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Affiliation(s)
- Graziella Midelet-Bourdin
- Agence Française de Sécurité Sanitaire des Aliments, Laboratoire d'Etudes et de Recherches sur les produits de la pêche, Boulogne sur Mer, France.
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41
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Freezing effects on survival ofListeria monocytogenes in artificially contaminated cold fresh-salmon. ANN MICROBIOL 2008. [DOI: 10.1007/bf03175545] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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42
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Silva S, Teixeira P, Oliveira R, Azeredo J. Adhesion to and viability of Listeria monocytogenes on food contact surfaces. J Food Prot 2008; 71:1379-85. [PMID: 18680936 DOI: 10.4315/0362-028x-71.7.1379] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Listeria monocytogenes is an important pathogen responsible for major outbreaks associated with food products. Adhesion to surfaces leads to significant modifications in cell physiology. The aim of this work was to determine the adhesion ability of 10 isolates of L. monocytogenes to eight materials commonly used in kitchens and to evaluate the viability of the adhered cells. The materials assayed were stainless steel 304, marble, granite, glass, polypropylene from a bowl and from a cutting board, and two kinds of silestone. All L. monocytogenes strains attached to all surfaces, although to different extents. L. monocytogenes adhered most tightly to granite and marble, followed by stainless steel 304, glass, silestones, and finally polypropylene surfaces. Surfaces at the threshold between hydrophobicity and hydrophilicity, with high electron acceptor capability and a regular pattern of roughness, were more prone to attachment. Polypropylene surfaces displayed the highest percentage of viable bacteria (nearly 100%), whereas marble and granite had a lower percentage of cultivable cells, 69.5 and 78.7%, respectively. The lowest percentage of culturable bacteria was found on white silestone (18.5%). These results indicate that there are differences in adhered cell viability on different materials. Cell viability assays are important to better understand the cross-contamination process because only adhered bacteria that remain viable are responsible for postprocess contamination.
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Affiliation(s)
- Sónia Silva
- Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
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43
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Parihar V, Barbuddhe S, Danielsson-Tham M, Tham W. Isolation and characterization of Listeria species from tropical seafoods. Food Control 2008. [DOI: 10.1016/j.foodcont.2007.06.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Evaluation of an enumeration method for Listeria monocytogenes at low contamination levels in cold-smoked salmon. Int J Food Microbiol 2008; 124:271-4. [DOI: 10.1016/j.ijfoodmicro.2008.03.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2007] [Revised: 02/23/2008] [Accepted: 03/24/2008] [Indexed: 11/18/2022]
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45
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Shin JH, Kang DH, Rasco B. Effect of Different Packaging Methods and Storage Temperatures on the Growth ofListeria monocytogenesin Raw and Hot Smoked Rainbow Trout (Oncorhynchus mykiss). JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2008. [DOI: 10.1080/10498850801937125] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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46
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Bou-m'handi N, Jacquet C, El Marrakchi A, Martin P. Phenotypic and Molecular Characterization ofListeria monocytogenesStrains Isolated from a Marine Environment in Morocco. Foodborne Pathog Dis 2007; 4:409-17. [DOI: 10.1089/fpd.2007.0019] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- Naïma Bou-m'handi
- Institut National de Recherche Halieutique, Centre Spécialisé de Valorisation et de Technologie des Produits de la Mer, Agadir, Maroc
| | - Christine Jacquet
- Laboratoire des Listeria, Centre National de Référence des Listeria, Institut Pasteur, Paris, France
| | - Abdelhaq El Marrakchi
- Institut Agronomique et Vétérinaire Hassan II, Département d’Hygiène et Industrie des Denrées Alimentaire d’Origine Animale, Rabat, Maroc
| | - Paul Martin
- Laboratoire des Listeria, Centre National de Référence des Listeria, Institut Pasteur, Paris, France
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47
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Kışla D, Üzgün Y, Demirhisar MA. Incidence and sources of Listeria monocytogenes in a traditional hot-smoked rainbow trout processing plant in Turkey. Int J Food Sci Technol 2007. [DOI: 10.1111/j.1365-2621.2007.01620.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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48
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Lianou A, Sofos JN. A review of the incidence and transmission of Listeria monocytogenes in ready-to-eat products in retail and food service environments. J Food Prot 2007; 70:2172-98. [PMID: 17900099 DOI: 10.4315/0362-028x-70.9.2172] [Citation(s) in RCA: 259] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Contamination of ready-to-eat products with Listeria monocytogenes may occur at several stages before consumption. Accessibility to the public and relatively limited control interventions at retail and food service establishments (compared with the processing sector of the food industry) and the lack of a specific regulatory framework increase the likelihood of introduction of this pathogen into some foods in these establishments. This review is a compilation of available information on the incidence and transmission of L. monocytogenes through ready-to-eat products at the retail and food service level. The potential transmission of L. monocytogenes within retail and food service operations has been indicated in epidemiological investigations and by survey data. Potential sources of the organism in these operations include the environment, food handlers, and incoming raw ingredients or processed products that have become contaminated after the lethality treatment at the manufacturing facility. L. monocytogenes may be present at retail and food service establishments in various ready-to-eat products, both prepackaged and those packaged in the store, and occasionally at high concentrations. This issue dictates the need for development and application of effective control measures, and potential control approaches are discussed here. Good manufacturing practices, appropriate cleaning, sanitation and hygiene programs, and temperature control required for prevention or inhibition of growth of the pathogen to high levels are critical for control of L. monocytogenes in the retail and food service sector. A comprehensive food safety system designed to be functional in retail and food service operations and based on the philosophy of hazard analysis and critical control point systems and a series of sound prerequisite programs can provide effective control of L. monocytogenes in these environments. However, competent delivery of food safety education and training to retail and food service managers and food handlers must be in place for successful implementation of such a system.
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Affiliation(s)
- Alexandra Lianou
- Center for Red Meat Safety, Department of Animal Sciences, Colorado State University, Fort Collins, Colorado 80523-1171, USA
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49
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Handa-Miya S, Kimura B, Takahashi H, Sato M, Ishikawa T, Igarashi K, Fujii T. Nonsense-mutated inlA and prfA not widely distributed in Listeria monocytogenes isolates from ready-to-eat seafood products in Japan. Int J Food Microbiol 2007; 117:312-8. [PMID: 17566579 DOI: 10.1016/j.ijfoodmicro.2007.05.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2007] [Revised: 04/15/2007] [Accepted: 05/09/2007] [Indexed: 11/29/2022]
Abstract
InlA is a surface protein participating in the entry of Listeria monocytogenes into mammalian non-phagocytic cells. PrfA is a positive regulatory factor that regulates the expression of a set of virulence genes. Recent studies revealed that some L. monocytogenes strains have a truncated form of these proteins because of nonsense mutations in their sequences, and these truncations contribute to the significant reduction in virulence of this pathogen. In this study, sequence analyses of inlA and prfA among L. monocytogenes isolated from ready-to-eat seafood revealed that only one out of 59 isolates had a nonsense-mutated inlA and all had non-mutated prfA. This indicated that these strains could be fully virulent based on the sizes of these proteins.
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Affiliation(s)
- Satoko Handa-Miya
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, Japan
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50
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Shin JH, Rasco BA. Effect of Water Phase Salt Content and Storage Temperature on Listeria monocytogenes Survival in Chum Salmon (Oncorhynchus keta) Roe and Caviar (Ikura). J Food Sci 2007; 72:M160-5. [DOI: 10.1111/j.1750-3841.2007.00385.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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